| Outotec Oyj Patent applications |
| Patent application number | Title | Published |
|---|
| 20120126493 | SEALING DEVICE - In a sealing device ( | 05-24-2012 |
| 20120124856 | METHOD AND STRAND SINTERING EQUIPMENT FOR CONTINUOUS SINTERING OF PELLETIZED MINERAL MATERIAL - In a method and equipment for continuous sintering of pelletized mineral material, a partition wall ( | 05-24-2012 |
| 20120103827 | METHOD FOR LEACHING CHALCOPYRITE CONCENTRATION - The invention relates to a method for leaching bulk concentrate of chalcopyrite-type by means of an aqueous solution containing sulphuric acid and an oxygen feed at atmospheric pressure and at a temperature between 75° C. and the boiling point of the solution. It is typical of the method that the particle size of the concentrate to be fed into leaching is in the region of 80% below 60-100 μm and that the concentrate is leached with an aqueous solution, the acid concentration of which is regulated to be around 20-90 g/l. | 05-03-2012 |
| 20120096913 | METHOD AND APPARATUS FOR PREPARING A MOTHER PLATE OF A PERMANENT CATHODE FOR AN ELECTROLYTIC PROCESS - The invention relates to a method and an apparatus for preparing a mother plate ( | 04-26-2012 |
| 20120093300 | ARRANGEMENT OF ANALYZER MEASURING WINDOW - The invention relates to an arrangement of a measuring window in a continuously operated X-ray analyzer ( | 04-19-2012 |
| 20120080382 | METHOD AND APPARATUS FOR REGENERATION OF EXTRACTION SOLUTION IN METAL EXTRACTION PROCESSES - The invention relates to a method and apparatus for restoring the extractive potential of organic hydroxyoxime-based extraction solution used in the recovery of metals by liquid-liquid extraction. The method is two-stage, in which an aqueous solution of hydroxylamine or some hydroxylamine compound is used in the reaction stage, and the removal of the undesirable compounds generated in the reaction occurs in the second stage by adsorption purification. The reaction stage and the adsorptive stage are carried out in a mixing tank. | 04-05-2012 |
| 20120074046 | FROTH FLOTATION METHOD AND AN APPARATUS FOR EXTRACTING A VALUABLE SUBSTANCE FROM A SLURRY - In a froth flotation method and apparatus an upwardly open circular trough ( | 03-29-2012 |
| 20120067740 | METHOD FOR CONCENTRATING DILUTE SULFURIC ACID AND AN APPARATUS FOR CONCENTRATING DILUTE SULFURIC ACID - A method for concentrating dilute sulfuric acid involves feeding dilute sulfuric acid through at least two electrolytic cells depolarized by sulfur dioxide, and through a cation conductive membrane separating the cathode and anode sides in the electrolytic cell. Also provided is an apparatus for concentrating sulfuric acid, wherein at least a first electrolytic cell is in fluid communication with a second electrolytic cell, and wherein a cation conductive membrane separates the cathode and anode sides in the electrolytic cells. | 03-22-2012 |
| 20120039721 | IMPELLER FOR MIXING SLURRY IN METALLURGICAL PROCESSES - The invention relates to a turbine-type high-power impeller, to be used for mixing slurry in hydrometallurgical process reactors. The impeller is formed of at least five blades, each of which blades comprises a front edge, trailing edge, root and tip; the roots of the impeller blades are permanently attached by a joint to the hub or axis of the impeller, so that the front edge of the impeller blade is straight, and the trailing edge is chamfered, in which case the blade is narrowed towards the tip, and the blade is provided with two longitudinal folds arranged in parallel with the front edge of the blade. | 02-16-2012 |
| 20120018376 | APPARATUS AND METHOD FOR REMOVING IMPURITIES IN CONNECTION WITH LIQUID-LIQUID EXTRACTION OF COPPER - The invention relates to an apparatus and method for removing molybdenum and other possible impurities from an organic copper-containing extraction solution in connection with the liquid-liquid extraction related to copper recovery. The removal of impurities occurs in one or several removal units built into the organic extraction solution storage tank. | 01-26-2012 |
| 20120014863 | PROCESS AND PLANT FOR PRODUCING METAL OXIDE FROM METAL SALTS - A process for producing metal oxide from metal salts includes cleaning a metal salt in a filter. After cleaning, the metal salt is dried in a drying apparatus. Steam is formed in the drying apparatus. The metal salt is preheated in at least one preheating stage. The metal salt is calcined to metal oxide in a fluidized-bed reactor. The metal oxide is cooled. The steam formed in the drying apparatus is recirculated into the filter. | 01-19-2012 |
| 20120000366 | WET GAS SCRUBBER - A wet gas scrubber is provided for removing at least one of solid and liquid particles from water-saturated gases with a Venturi zone adjustable with respect to the flow cross-section. The wet gas scrubber includes a fixed lower Venturi plate and a vertically adjustable upper Venturi plate disposed above the fixed lower Venturi plate. The Venturi plates are substantially parallel to one another and include corresponding segments configured to engage in each other. A plurality of Venturi channels are disposed between the Venturi plates and configured to guide a mixture of a gas to be cleaned and cleaning liquid droplets injected into a stream of the gas by a nozzle. The segments of the Venturi plates engage in each other while the Venturi channels are kept free. | 01-05-2012 |
| 20110318253 | METHOD FOR PURIFYING LITHIUM BICARBONATE - The invention relates to a method for purifying impure lithium bicarbonate by means of a cation exchange resin. In addition to solution purification by ion exchange, the treatment stages include the regeneration of impurity metals bound to the resin. Regeneration consists of washing the resin with water, elution with acid solution, washing with water, neutralisation with alkali solution and washing with water. It is characteristic of the method that neutralisation is performed with sodium hydroxide solution. | 12-29-2011 |
| 20110316205 | SUPPLY SYSTEM FOR SUSPENSION SMELTING FURNACE - A supply system for providing a suspension smelting furnace with constant and continuous feed is disclosed. The installation of the invention comprises intermediate storage bins for fine-grained feed, a feed rate controller for accurately controlling the feed rate of the fine-grained material, and a pneumatic conveyor for lifting the feed up to the top level of the suspension smelting furnace where the burner of the furnace is adapted. In the installation, the heavy constructions of the storage bins are located close to the ground level and the constructions around and on top of the furnace have been designed essentially lighter than in conventional solutions. | 12-29-2011 |
| 20110309029 | METHOD FOR REMOVING ARSENIC AS SCORODITE - The invention relates to a method for removing arsenic as scorodite from solutions that contain iron and arsenic. In accordance with the method, arsenic is first precipitated as ferric arsenate and subsequently processed hydrothermally into crystalline scorodite. | 12-22-2011 |
| 20110303619 | METHOD AND ARRANGEMENT FOR SEPARATING TWO SOLUTIONS MIXED IN DISPERSION INTO TWO SOLUTION PHASES IN A LIQUID-LIQUID EXTRACTION SEPARATION CELL - The invention relates to a method and arrangement for separating two solutions mixed in dispersion into two solution phases in a liquid-liquid extraction separation cell ( | 12-15-2011 |
| 20110297606 | METHOD FOR FABRICATING DISCHARGE END CHUTE ARRANGEMENT OF A LIQUID-LIQUID EXTRACTION SETTLING TANK AND SAID CHUTE ARRANGEMENT - The subject of the invention is a method for fabricating the discharge end ( | 12-08-2011 |
| 20110284462 | METHOD AND ARRANGEMENT FOR SEPARATING TWO SOLUTIONS MIXED IN DISPERSION INTO TWO SOLUTION PHASES IN A LIQUID-LIQUID EXTRACTION SEPARATION CELL - The invention relates to a method and arrangement for separating two solutions mixed in dispersion into two solution phases in a liquid-liquid extraction separation cell ( | 11-24-2011 |
| 20110259737 | PERMANENT CATHODE - A permanent cathode that is to be used as electrode in the electro-refining and/or recovery of metals, such as copper, zinc, cobalt or nickel. The permanent cathode comprises a planar mother plate that is made of metal and comprises two sides. The mother plate comprises an edge, which at least partly surrounds the metal plate. The edge comprises a groove portion that is provided with a groove. The groove portion comprises at least one bridging section for joining together, over the groove portion of the edge of the metal plate at the at least one bridging section, the cathode metal halves, such as cathode copper halves, cathode zinc halves, cathode cobalt halves or cathode nickel halves, which are formed on the sides of the mother plate in the electro-refining of the metals. | 10-27-2011 |
| 20110252967 | METHOD AND ARRANGEMENT FOR REMOVING SOLID PARTICLES AND TAR COMPONENT FROM CARBON MONOXIDE GAS - A method and arrangement for removing solid particles and tar component from carbon monoxide gas. In the method, carbon monoxide gas is conducted from a ferroalloy smelting furnace ( | 10-20-2011 |
| 20110247987 | METHOD FOR THICKENING AND THICKENING APPARATUS - The invention relates to a method and apparatus for thickening liquids carrying suspended particles, such as slurry containing minerals, by using a thickening apparatus ( | 10-13-2011 |
| 20110210478 | METHOD AND EQUIPMENT FOR PROVIDING THE EDGE OF A STARTING SHEET WITH A DIELECTRIC STRIP - A device for providing the edge of a starting sheet of an electrode used in the electrolytic refining or recovery of metals with a dielectric part comprises a die space, in which the edge of the starting sheet of the electrode can at least partly be fitted, and a feeding device of the dielectric material for feeding the dielectric material into the die space. The device comprises changing members of the volume of the die space for pressing the dielectric material in the die space to that edge of the starting sheet of the electrode, which is at least partly fitted in the die space. | 09-01-2011 |
| 20110203340 | EQUIPMENT FOR THE STRAIGHTENING OF DEFORMED ELECTROLYSIS POTSHELLS, IN PARTICULAR FOR ALUMINIUM MOLTEN-BATH ELECTROLYSIS - In order for the straightening of deformed electrolysis potshells to provide operationally reliable equipment which makes it possible to straighten deformed potshell sidewalls even of different deformation resistance independently of one another, specifically both in the case of the potshell carrying structure and in the case of the potshell sheeting, according to the invention an elongate transportable straightening beam ( | 08-25-2011 |
| 20110198303 | METHOD AND APPARATUS FOR DISTURBING NETWORKED PULP - The present invention provides a method ( | 08-18-2011 |
| 20110195016 | PROCESS AND PLANT FOR PRODUCING CALCINE PRODUCTS - A process for producing calcine products includes dead roasting a metal sulfide concentrate having a low sulfur content. The concentrate is roasted in a circulating fluidized bed at a temperature of about 950 to 1050° C. A waste gas of the fluidized bed is passed through at least one of a recuperator and a Venturi drier so as to respectively provide at least one of a preheating of at least a portion of air fluidizing the fluidized bed and a drying of at least a portion of the concentrate to be roasted. The calcine product obtained in the fluidized bed with a sulfur content of less than 1 wt-% is provided for further processing. | 08-11-2011 |
| 20110186666 | MULTI-STAGE DISCHARGER FOR GRINDING MILLS - A pulp lifter assembly for a rotary grinding mill includes an outer pulp lifter having walls defining a pulp lifter chamber and an outlet opening for radially inward discharge of slurry from the pulp lifter chamber, and an inner discharger disposed radially inward of the outer pulp lifter and circumferentially offset from the outer pulp lifter. The inner discharger defines a passage for conveying slurry substantially radially inward. A transition discharger is disposed radially between the outer pulp lifter and the inner discharger. The transition discharger has a first wall bounding an interior space and a second wall dividing the interior space into first and second regions. The second wall includes a guide that bounds a channel connecting the outlet opening of the outer pulp lifter to the passage defined by the inner discharger. | 08-04-2011 |
| 20110180484 | SEPARATION DEVICE WITH DUAL DRIVES AND A METHOD OF REDUCING DONUTTING IN A SEPARATION DEVICE - The invention provides a separation device ( | 07-28-2011 |
| 20110163041 | METHOD FOR CONTROLLING THE DISTURBANCE OF NETWORKED PULP - The invention provides a method ( | 07-07-2011 |
| 20110127020 | METHOD FOR MANUFACTURING A COOLING ELEMENT AND A COOLING ELEMENT - A method for coating the base element of a cooling element used in connection with a metallurgical furnace or the like, said base element being mainly made of copper, at least partly with a metal coating involves a step wherein the metal coating is explosion welded to the base element of a cooling element mainly made of copper. A cooling element, particularly to be used in connection with metallurgical furnaces or the like, includes a base element mainly made of copper, in which base element there is arranged a cooling water channel system, said base element of the cooling element being at least partly coated with a metal coating. The metal coating is explosion welded to the base element that is mainly made of copper. | 06-02-2011 |
| 20110108235 | METHOD FOR MANUFACTURING A COOLING ELEMENT AND A COOLING ELEMENT - A method for manufacturing a cooling element for a metallurgical furnace, wherein there is arranged a frame element mainly made of copper and provided with water cooling channels; in the frame element, there are arranged fastening elements for connecting refractory bricks to the frame element; and refractory bricks are connected to the frame element by using fastening elements; and wherein the fastening elements are at least partly formed of elongate steel fastening strips; the method comprising fastening the elongate fastening steel strips to the frame element so that the elongate fastening steel strips together form in between them an open interspace, which is narrowed in a direction pointed away from the bottom of the open interspace; and arranging refractory bricks in the open interspace so that the refractory bricks are located at least partly in the open interspace. A cooling element to be used in connection with a metallurgical furnace or the like is made mainly of copper and includes water cooling channels. | 05-12-2011 |
| 20110090934 | SEALING DEVICE - A sealing device is arranged around a rod electrode extending vertically through an aperture made in the ceiling of an arc furnace and being vertically movable inside the furnace to prevent the access of gases from the furnace through the aperture to the atmosphere, and on the other hand to prevent air from flowing from the atmosphere into the furnace. The sealing device comprises a gas distribution chamber provided with an inlet channel for feeding essentially passive gas, such as nitrogen or air, into the gas distribution chamber. The sealing device also includes a slit nozzle encasing the electrode, through which nozzle a gas jet is arranged to be discharged from the gas distribution chamber towards the electrode in a direction that is at an angle with respect to the horizontal plane and has a slightly upwards inclined orientation, and that is, with respect to the furnace interior, pointed outwardly, so that the sealing is carried out owing to the effect of the created stagnation pressure. | 04-21-2011 |
| 20110079563 | IMPROVEMENTS IN FEEDWELLS - The invention provides several improvements in feedwells, one of which being a feedwell ( | 04-07-2011 |
| 20110073468 | METHOD FOR ARRANGING ELECTRODES IN AN ELECTROLYTIC PROCESS AND AN ELECTROLYTIC SYSTEM - In the method and system, a number of electrolytic cells are arranged as a cell group, which cells are separated by a number of partition walls; in each cell, a number of anodes and cathodes are arranged in an alternating order, so that in each cell, next to each anode, there is arranged a cathode, and so that in each cell, each individual anode is fitted in the same anode line with the anode of the adjacent cell, and in each cell, each individual cathode is fitted in the same cathode line with the cathode of the adjacent cell, and each anode is galvanically connected to at least one cathode of the adjacent cell. The flowing direction of the current passing in the cell group is deviated in different directions in order to make the current flow mainly in the direction of the cell group. | 03-31-2011 |
| 20110068520 | SYSTEM FOR DECREASING AMOUNT OF ORGANIC SOLUTION IN THE LIQUID-LIQUID EXTRACTION PROCESS - The invention relates to a system used in the liquid-liquid extraction of metals, enabling the amount of organic solution required in the various stages of extraction to be significantly reduced. In accordance with the invention, the settler unit of one step belonging to an extraction system is selected to function also as the organic solution storage and pumping tank. | 03-24-2011 |
| 20110067568 | APPARATUS AND METHOD FOR MECHANICAL DEAERATION - The invention provides an apparatus ( | 03-24-2011 |
| 20110054802 | METHOD AND ARRANGEMENT FOR MONITORING AND PRESENTING THE STATUS OF AN ELECTROLYTIC PROCESS IN AN ELECTROLYTIC CELL - The invention relates to an arrangement and method for monitoring and presenting the status of an electrolytic process in an electrolytic cell ( | 03-03-2011 |
| 20110034318 | PROCESS AND PLANT FOR THE HEAT TREATMENT OF FINE-GRAINED MINERAL SOLIDS - A process for heat treatment of fine-grained mineral solids includes passing fine-grained mineral solids through a flash reactor so as to contact the fine-grained mineral solids with hot gases in the flash reactor at a temperature of 450 to 1500° C. so as to obtain hot solids. The hot solids arc passed through a residence time reactor at a temperature of 500 to 890° C. The hot solids are withdrawn from the residence time reactor after a residence time of 1 to 600 minutes. A waste gas of the residence time reactor is recirculated to at least one of the flash reactor and a preheating stage. | 02-10-2011 |
| 20110013662 | PROCESS AND PLANT FOR THE THERMAL TREATMENT OF FINE-GRAINED SOLIDS - A process for at least one of a chemical and a physical treatment of fluidizable substances in a reactor. The process includes introducing a hot gas into an interior of the reactor through a gas supply tube and cooling at least one of the hot gas and the gas supply tube with a coolant. The cooling is performed by contacting the hot gas with the coolant so as to provide a temperature of a wall of the gas supply tube at least 50° C. lower than a temperature of the gas at an inlet of the gas supply tube facing away from the interior of the reactor. | 01-20-2011 |
| 20110011211 | METALLURGICAL PROCESS AND PLANT HEREFOR - A process for the production and/or treatment of at least one metal in a reactor includes discharging a waste gas stream via a waste gas conduit and after-treating the waste gas stream by supplying a cooling gas and/or a cooling gas mixture. The after-treating includes injecting the cooling gas and/or cooling gas mixture into the waste gas conduit on a side of the waste gas conduit facing the reactor, at a high velocity and substantially tangentially with respect to a main flow direction of the waste gas. A volume of the cooling gas and/or the cooling gas mixture injected into the waste gas conduit is adjusted so as to reduce a mixing temperature below a melting temperature of the molten particles and/or a condensation temperature of the vaporous constituents of the waste gas stream. | 01-20-2011 |
| 20100329300 | METHOD AND ARRANGEMENT FOR MEASURING AT LEAST ONE PHYSICAL MAGNITUDE, SUCH AS TEMPERATURE, FLOW OR PRESSURE OF THE COOLING FLUID FLOWING IN AN INDIVIDUAL COOLING ELEMENT CYCLE OF A COOLING ELEMENT IN A METALLURGICAL FURNACE - The invention relates to a method and arrangement for measuring at least one physical magnitude, such as temperature, flow or pressure of the cooling fluid flowing in an individual cooling element cycle ( | 12-30-2010 |
| 20100319253 | PROCESS AND PLANT FOR REFINING RAW MATERIALS CONTAINING ORGANIC CONSTITUENTS - A process for refining raw materials containing oil and/or bitumen includes supplying water and the raw materials to an expulsion stage and/or an expulsion stage and a downstream gasification stage to obtain solids containing non-evaporated fractions of heavy hydrocarbons and to expel hydrocarbonaceous vapour. The expelled hydrocarbonaceous vapour is supplied to a processing stage and is further processed to expel hydrocarbonaceous vapour to obtain processing stage products which are separated and withdrawn. The solids from the expulsion stage and/or the expulsion stage and the downstream gasification stage are introduced into a combustion stage. The non-evaporated fractions of heavy hydrocarbons are burned in the combustion stage to obtain hot solids which are recirculated from the combustion stage into the expulsion stage and/or the downstream gasification stage. An oxidizing atmosphere of the combustion stage is separated from an atmosphere of the expulsion stage and/or the downstream gasification stage using a blocking device. | 12-23-2010 |
| 20100314475 | TURBO PULP LIFTER - A pulp lifter for installation in a rotary grinding mill has a leading edge wall and a trailing edge wall with respect to rotation of the mill. The leading edge wall and the trailing edge wall define a pulp lifter chamber, and a grate allows slurry to pass to a radially outward collecting region of the pulp lifter chamber for removal from the mill by way of a radially inward discharge region of the pulp lifter chamber. In one embodiment, a gate is positioned between the collecting region and the discharge region, the gate being movable between an open position, in which the gate permits solid material to pass from the collecting region to the discharge region, and a closed position, in which the gate prevents return movement of solid material from the discharge region to the collecting region. | 12-16-2010 |
| 20100313475 | PROCESS FOR PLANT FOR REFINING RAW MATERIALS CONTAINING ORGANIC CONSTITUENTS - A process for refining raw materials containing oil and/or bitumen includes supplying the raw materials to a reactor. The reactor is operated under a pressure of from 0.001 to 1 bar and at a reactor temperature of from 300 to 1000° C. so as to volatize fuel gases and obtain solids and non-evaporated fractions of heavy hydrocarbons. The solids and non-evaporated fractions of heavy hydrocarbons are introduced into a furnace. The non-evaporated fractions of heavy hydrocarbons are burned in the furnace at a furnace temperature of from 600 to 1500° C. so as to obtain hot solids in the furnace. The hot solids are recirculated from the furnace into the reactor. An oxidizing atmosphere of the furnace is separated from an atmosphere of the reactor by a sealing device. | 12-16-2010 |
| 20100294715 | SETTLER ARRANGEMENT FOR LIQUID-LIQUID EXTRACTION, EQUIPMENT TO BE PLACED IN THE SETTLER OP LIQUID-LIQUID EXTRACTION AND METHOD FOR INSTALLING THE EQUIPMENT - Equipment to be placed in the settler ( | 11-25-2010 |
| 20100269636 | DIRECT REDUCTION APPARATUS AND PROCESS - An apparatus for reducing a metalliferous material in a fluidized bed includes a vessel for containing the fluidized bed, a mechanism for supplying the metalliferous material, a solid carbonaceous material, an oxygen-containing gas, and a fluidizing gas into the vessel for forming the fluidized bed in the vessel. The oxygen-containing gas supply mechanism includes one or more than one oxygen-containing gas injection lance having a lance tip with an outlet that is positioned for injecting the oxygen-containing gas in a downward flow into the vessel within a range of plus or minus 40° to the vertical. | 10-28-2010 |
| 20100263487 | PROCESS AND PLANT FOR PRODUCING CHAR AND FUEL GAS - A method for producing char and fuel gas includes degasifying a carbonaceous material with oxygen-containing gases in a fluidized bed reactor at a temperature of more than about 1000° C. and at a pressure of from about 1 bar to about 40 bar. A supply of oxygen within the fluidized bed reactor is adjusted so as to recover more than 60% of fixed carbon in the carbonaceous material in a char product, and an oxygen availability in a lower or bottom region of the fluidized bed reactor is less than 80% of an oxygen availability in an upper region of the fluidized bed reactor. | 10-21-2010 |
| 20100236636 | FLUID DISTRIBUTION SYSTEM - A system for distributing a fluid via a packing disposed in a container, the packing configured to have the fluid trickle from a top to a bottom thereof, includes at least one distributor member including a pressure conduit having at least one nozzle configured to discharge the fluid therethrough and a distributor channel adjoining the distributor member. A width of the distributor channel does not substantially exceed a diameter of the distributor member. The distributor channel defines at least one outlet slot disposed at a lower end of the distributor channel. The at least one outlet slot has a specified width and is configured to discharge the fluid from the distributor channel to the packing via a guide member. The distributor channel is configured to receive the fluid discharged from the at least one nozzle so as to provide a specified level of the fluid in the distributor channel. The distributor channel forms a ventable chamber above the specified fluid level. The ventable chamber is configured to maintain a pressure corresponding to a pressure in the container in which the packing is disposed. | 09-23-2010 |
| 20100229687 | METHOD AND MIXER APPARATUS FOR MIXING GAS INTO SLURRY IN A CLOSED REACTOR - The mixer apparatus accordant with the invention includes a closed reactor, at least two mixers at different heights, which are on the same shaft, a gas feed pipe below the lower mixer and baffles. The blades of the mixers are mostly rectangular in shape and a minimum of six in number. The angle of inclination of the blades of the lower mixer is around 50-70° and that of the upper mixer around 25-35°. The number of baffles is at least six and their range around 20% of the reactor diameter. The invention is focused also the corresponding method. | 09-16-2010 |
| 20100209320 | SUPPORT RING FOR ACCOMMODATING A PLATE-LIKE ELEMENT IN A VESSEL - A support ring for accommodating a plate-like element in a vessel includes a bracket disposed on a wall of the vessel and configured to support the plate-like element, the bracket having an upper supporting surface inclined downward relative to horizontal. | 08-19-2010 |
| 20100207307 | CONCENTRATE BURNER - A concentrate burner for feeding a pulverous concentrate mixture and reaction gas into the reaction shaft ( | 08-19-2010 |
| 20100187191 | THICKENING APPARATUS AND METHOD FOR THICKENING - A thickening apparatus ( | 07-29-2010 |
| 20100187161 | PROCESS AND PLANT FOR REFINING OIL-CONTAINING SOLIDS - For refining oil-containing solids, in particular oil sand or oil shale, there is proposed a process with the following steps:
| 07-29-2010 |
| 20100183894 | METHOD FOR COATING A CONSTRUCTION MATERIAL WITH A FUNCTIONAL METAL AND THE PRODUCT MANUFACTURED BY THE METHOD - A method for coating a construction material made of metal alloy with a functional metal. The functional metal is deposited electrolytically on the surface of the construction material selectively so that the deposition occurs on the grain boundaries of the construction material and other points of discontinuity. The invention also relates to a construction material product, which is selectively coated with a functional metal. | 07-22-2010 |
| 20100180727 | METHOD FOR THE PRODUCTION OF METAL POWDER - The invention relates to a method for leaching a material containing a valuable metal and precipitating the valuable metal as a fine-grained powder by changing the electrochemical potential of an intermediary metal in the solution. In the leaching stage the intermediary metal or substance of the electrolyte solution is at a high degree of oxidation and in the precipitation stage another electrolyte solution is routed into the solution, in which the intermediary metal or substance is at a low degree of oxidation. After the precipitation stage the solution containing the intermediary is routed to electrolytic regeneration, in which part of the intermediary is oxidised in the anode space back to a high potential value and part is reduced in the cathode space to its low value. | 07-22-2010 |
| 20100176072 | Gasket Distributor - A flange joint for connecting two objects in a fluid connection so that fluid can flow between the objects. The flange joint has a gasket and the gasket is installed in the flange joint. The flange joint has at least one channel for feeding additional fluid from outside of the flange joint through the gasket into fluid flowing between the two objects. | 07-15-2010 |
| 20100155309 | Method for Separating Particles in Hydrous Slurry and a Hindered-Bed Separator - A method for separating particles in hydrous slurry comprises connecting at least one teeter water pipe of a teeter water distributor means of a hindered-bed separator in fluid connection with a teeter water discharging means, and discharging teeter water from the at least one teeter water pipe that is in fluid connection with the teeter water discharging means to the teeter water discharging means. | 06-24-2010 |
| 20100118641 | METHOD AND APPARATUS FOR CONTROLLING A STREAM OF SOLIDS - A method for controlling at least one of a level of solids and an inventory of solids in a solids tank includes withdrawing a stream of solids from the solids tank via a downer. The stream of solids withdrawn from the solids tank is fluidized at a bottom of the downer by supplying a conveying gas so as to convey the withdrawn stream of solids upward via a riser branching off from the downer, a size of the conveyed stream of solids being adjusted by the supplying of the conveying gas. At least one of the level and the inventory of the solids in the solids tank is used as an adjustment variable of a control circuit and a volume flow of the conveying gas is used as an actuating variable of the control circuit. | 05-13-2010 |
| 20100108618 | THICKENER AND METHOD FOR THICKENING - The invention relates to an apparatus and a method for thickening liquids carrying suspended particles, such as a slurry containing minerals. The thickening apparatus comprises a tank ( | 05-06-2010 |
| 20100101337 | Method of and Equipment for Preparing an Analysis Sample - The invention relates to a method of and equipment for preparing an analysis sample ( | 04-29-2010 |
| 20100078319 | METHOD OF MANUFACTURING A CATHODE PLATE, AND A CATHODE PLATE - A method of manufacturing a cathode plate ( | 04-01-2010 |
| 20100077889 | METHOD TO ENHANCE CLARIFICATION IN A MIXING REACTOR AND SAID MIXING REACTOR - The invention relates to a mixing reactor for mixing a liquid and pulverous solid, clarification the solution that is formed and discharging the clarified solution from the mixing reactor, in the lower section of which a fluidized bed is formed. The invention also relates to a method for mixing a liquid and pulverous solid into each other in a fluidized bed, for clarification the solution that is formed and for discharging the clarified solution from the mixing reactor. | 04-01-2010 |
| 20100074805 | FLUIDIZED BED METHOD FOR THE HEAT TREATMENT OF SOLIDS CONTAINING TITANIUM - A plant for the heat treatment of solids containing titanium includes a fluidized bed reactor. The reactor includes at least one gas supply tube being at least partly surrounded by an annular chamber in which a stationary annular fluidized bed is located, and a mixing chamber being located above the upper orifice region of the gas supply tube. The gas flowing through the gas supply tube entrains solids from the stationary annular fluidized bed into the mixing chamber when passing through the upper orifice region of the gas supply system. The plant further includes a solids separator downstream of the reactor. The solids separator includes a solids conduit leading to the annular fluidized bed of the reactor. | 03-25-2010 |
| 20100071555 | METHOD AND APPARATUS FOR FILTERING PROCESS GAS - The invention relates to a method and an apparatus for filtering process gas created in the ferroalloy smelting process, i.e. carbon monoxide gas, in order to essentially reduce the content of solids in the gas. In the filtering unit ( | 03-25-2010 |
| 20100061922 | METHOD FOR PRODUCING HYDROGEN AND SULPHURIC ACID - The invention relates to a method for producing gaseous hydrogen and strong sulphuric acid (97-100 wt-%) simultaneously from sulphur dioxide gas and water. Sulphur dioxide gas stream is divided into two separate sub-streams, the first sub-stream is routed for water decomposition in a partial thermochemical cycle of the hydrogen and sulphuric acid production and the second sub-stream is fed to the oxidation of the sulphur dioxide to sulphur trioxide. | 03-11-2010 |
| 20100059415 | FROTH FLOTATION METHOD AND APPARATUS, A FROTH FLOTATION METHOD AND APPARATUS FOR EXTRACTING BITUMEN FROM A SLURRY OF WATER AND OIL SAND, AND USE OF THE APPARATUS - A froth flotation method and apparatus for extracting a valuable substance from a slurry comprising a mixture of solid phase, liquid phase and said substance. A gas dispersing mechanism ( | 03-11-2010 |
| 20100044933 | METHOD AND PLANT FOR THE HEAT TREATMENT OF SOLIDS CONTAINING IRON OXIDE - A plant for the heat treatment of solids containing iron oxide includes a fluidized bed reactor. The reactor includes at least one gas supply tube at least partly surrounded by an annular chamber in which a stationary annular fluidized bed is located, and a mixing chamber being located above the upper orifice region of the at least one gas supply tube. The gas flowing through the at least one gas supply tube entrains solids from the stationary annular fluidized bed-into the mixing chamber when passing through the upper orifice region of the at least one gas supply tube. | 02-25-2010 |
| 20100040512 | METHOD AND PLANT FOR THE HEAT TREATMENT OF SOLIDS CONTAINING IRON OXIDE - A plant for the heat treatment of solids containing iron oxide. The plant includes a reactor including a fluidized bed reactor. The reactor includes a gas supply system disposed in the reactor, a stationary annular fluidized bed which at least partly surrounds the gas supply system, and a mixing chamber. The gas supply system is configured so that gas flowing through the gas supply system entrains solids from the stationary annular fluidized bed into the mixing chamber. | 02-18-2010 |
| 20100018907 | EQUIPMENT AND METHOD FOR FLOTATING AND CLASSIFYING MINERAL SLURRY - The invention relates to an equipment and method for flotating mineral slurry ( | 01-28-2010 |
| 20100012501 | METHOD FOR COATING A COOLING ELEMENT - The invention relates to a method for coating a cooling element ( | 01-21-2010 |
| 20090274589 | PROCESS AND PLANT FOR PRODUCING METAL OXIDE FROM METAL COMPOUNDS - A plant for producing metal oxide from metal compounds includes a fluidized-bed reactor in which the metal compounds are heated by a combustion of a fuel to produce metal oxide. The fluidized-bed-reactor reactor includes at least one gas supply tube at least partly surrounded by an annular chamber in which a stationary annular fluidized bed is disposed, and a mixing chamber disposed above an orifice region of the gas supply tube. A gas flowing through the gas supply tube entrains solids from the stationary annular fluidized bed when passing through the orifice region. | 11-05-2009 |
| 20090158894 | METHOD FOR RECOVERING GOLD - The invention relates to a method for recovering gold in connection with the hydrometallurgical production of copper from a waste or intermediate product containing sulphur and iron that is generated in the leaching of the copper raw material. The recovery of both copper and gold occurs in a chloride environment. The gold contained in the waste or intermediate is leached by means of divalent copper, oxygen and alkali bromide in a solution of copper (II) chloride and alkali chloride, in conditions where the oxygen-reduction potential is a maximum of 650 mV and the pH a minimum of 0.5. The bromide accelerates the dissolution of the gold. | 06-25-2009 |
| 20090152777 | METHOD FOR MANUFACTURING A MIXER-SETTLER AND A MIXER-SETTLER - The invention relates to a method for manufacturing a mixer-settler used in hydrometallurgical metal processes, such as liquid-liquid extraction, and to a mixer-settler structure where chemically resistant material, such as plate-like wall elements made of reinforced plastic, is used. | 06-18-2009 |
| 20090126530 | METHOD AND EQUIPMENT FOR TREATING PROCESS GAS - The invention relates to a method for treating solids-containing process gas in a suspension smelting furnace, comprising directing the process gas from the reaction shaft of the suspension smelting furnace to a lower furnace and, further, through a raised shaft to a waste heat boiler to cool the process gas, whereby, through one or more gas nozzles placed on the lower furnace top wall, oxidizing gas is fed into the process gas flowing in the lower furnace, whereby the amount of oxidizing gas is adjusted during the process so that the amount of sulphides contained in the solid matter of the process gas that is directed to the waste heat boiler is minimized. The invention also relates to the equipment. | 05-21-2009 |
| 20090078723 | LAUNDER FOR CASTING MOLTEN COPPER - The invention relates to a launder construction for the conveyance of molten metal. The metal flows in the lower part of the launder construction in a channel defined by a refractory mass, the launder being heat-insulated so that, in operating conditions, the metal forms a solid zone in the porous refractory mass. The essential features of the launder construction include a cover part that is provided with electrical resistors, ensuring that the metal remains melted and the launder sufficiently hot throughout the process, and a gas burner that prevents the metal from cooling under the effect of the gas flowing in the launder channel. | 03-26-2009 |
| 20090078086 | METHOD FOR RECOVERING COPPER FROM A COPPER SULPHIDE ORE - The invention relates to a method whereby copper is recovered from a copper sulphide ore containing pyrite. According to the method the ore is ground and leached into a solution containing sulfuric acid in atmospheric conditions by means of trivalent copper. As the copper sulphide leaches out, the trivalent iron is reduced to divalent and is oxidized back to trivalent by means of oxygen during leaching. Leaching is carried out in a closed reactor, where the undissolved gas rising from the solution in the supper section of the reactor is circulated back into the suspension of solution, solids and gas. leaching is performed in the presence of both divalent and trivalent iron and preferably with the dissolved copper acting as a catalyst to promote leaching. The conditions are adjusted to be such that the pyrite of the ore essentially does not dissolve. | 03-26-2009 |
| 20090068088 | PROCESS AND APPARATUS FOR THE COMBUSTION OF SULFUR - A process for a combustion of sulfur with an oxygen-containing gas to produce sulfur dioxide. The process includes introducing the sulfur and the oxygen-containing gas to a furnace. The sulfur is evaporated and subsequently a portion of the sulfur is oxidized to sulfur dioxide under sub-stoichiometric conditions in a first portion of the furnace. The sulfur dioxide formed in the first furnace portion is introduced together with any unoxidized sulfur to a second portion of the furnace which is disposed adjacent to the first furnace portion. The sulfur dioxide and unoxidized sulfur are subjected to post-combustion with the oxygen-containing gas in an inlet of a downstream waste heat boiler. | 03-12-2009 |
| 20090025903 | ARRANGEMENT AND METHOD FOR COOLING A SOLUTION - The invention relates to cooling equipment for cooling liquid, comprising a cooling tower that is mainly cylindrical in the vertical direction, in which case the cooling air feed equipment and the exhaust air discharge equipment are arranged, with respect to the cooling tower, so that both the cooling air flowing direction from the inlet aperture to the cooling space and the exhaust air flowing direction from the discharge equipment is horizontal and parallel to the tangent of the outer surface of the cooling tower. The invention also relates to a method for cooling liquid. | 01-29-2009 |
| 20090022639 | Method for the recovery of valuable metals and arsenic from a solution - The invention relates to a method for the treatment of material containing at least one valuable metal and arsenic to form a valuable metal-depleted scorodite sediment and a pure aqueous solution to be discharged from the process. According to the method, the valuable metals are first removed from the material to be treated and then arsenic precipitation from the solution is performed in two stages. By means of the method, the aim is to obtain as low a valuable metal content as possible in the scorodite sediment that will be formed. Likewise, the arsenic and valuable metal content of the aqueous solution that is formed during arsenic precipitation also remains so low that the water can be released into the environment. | 01-22-2009 |
| 20090017409 | EQUIPMENT AND METHOD FOR HEATING GAS IN CONNECTION WITH SINTERING - The invention relates to equipment for heating gas in connection with continuous sintering in gas channels placed above a strand, the gas channels comprising at least a wall and at least two gas units, the gas coming from the gas units being in contact with the material on the strand, whereby at least one burner unit is arranged in at least one of the gas channels, being arranged as part of the gas channel, the burner unit comprising at least one separate combustion space arranged on the wall of the gas channel. The invention also relates to a method for heating the gas. | 01-15-2009 |
| 20080307902 | Method for Defining Element Content and/or Mineral Content - The invention relates to a method for defining particle and/or mineral content in real time in a mineral separation process from finely divided particle material flowing either in solid or slurry-like form, so that from the particle material, there is extracted a representative sample, which sample is then subjected to grain size analysis, on the basis of which there is calculated the element and/or mineral content of the particle material. | 12-18-2008 |
| 20080272525 | Cooling Element and Method for Manufacturing the Same - The invention relates to a cooling element to be used in the structure of a pyromettalurgical reactor used in the manufacturing of metals, which cooling element comprises a housing element mainly made of copper, provided with a channel system for the cooling medium circulation, made of pipe that is mainly made of copper; on the outer surface of the pipes forming the channel system, there is arranged a coating that has a lower melting point than the material of the housing element and the pipe. The invention also relates to a method for manufacturing the cooling element. | 11-06-2008 |
| 20080271572 | Method for Recovering Rare Metals in Zinc Leaching Process - Sulphidic zinc concentrate usually also includes small amounts of rare metals such as indium and gallium. If the content of these metals in the raw material is sufficiently high, their recovery may be economically worthwhile. In the method according to the invention the recovery of indium and other desirable rare metals takes place in a zinc leaching process, in which at least part of the sulphidic concentrate is leached directly without roasting. | 11-06-2008 |
| 20080241024 | Method for Leaching Metal Sulphide Minerals - The invention relates to a method for the sulphate-based leaching of metal sulphide minerals, such as chalcopyrite, CuFeS | 10-02-2008 |
| 20080237036 | Method for Forming an Electrocatalytic Surface on an Electrode and the Electrode - The invention relates to a method of forming an electrocatalytic surface on an electrode in a simple way, in particular on a lead anode used in the electrolytic recovery of metals. The catalytic coating is formed by a spraying method which does not essentially alter the characteristics of the coating powder during spraying. Transition metal oxides are used as the coating material. After the spray coating the electrode is ready for use without further treatment. The invention also relates to an electrode onto which an electrocatalytic surface is formed. | 10-02-2008 |
