OUTOTEC (FINLAND) OY Patent applications |
Patent application number | Title | Published |
20160138982 | METHOD AND SYSTEM FOR MEASURING CLAMPING PRESSURE IN AN ELECTRODE SLIPPING DEVICE - A method and a system for monitoring clamping pressure exerted by a clamping cylinder to an electrode in an electrode slipping device which comprises an upper annular holder ring and a lower annular holder ring, each comprising at least one clamping assembly including a clamping shoe and clamping cylinder arranged in co-operation so that the clamping shoe is forced into pressure contact with the electrode and released from pressure contact with the electrode by the action of the clamping cylinder. The measuring system comprises a force sensor ( | 05-19-2016 |
20160138177 | APPARATUS FOR PROTECTION OF ANODES AND CATHODES IN A SYSTEM OF ELECTROLYSIS CELLS - Provided is an electrode assembly for electrolytic processing in an electrolysis cell comprising an electrode blade comprising a metallic hanger bar portion, a first lug for supporting the metallic hanger bar portion on a first power supply bar, an insulating piece connecting the metallic hanger bar portion to the first lug. The electrode assembly also comprises an electrical switch unit controlling electrical current supply between the first lug and the metallic hanger bar based on a control signal transmitted to a terminal of the electrical switch unit, a control unit configured to transmit the control signal to the terminal of the electrical switch unit, and a power storage unit configured to supply power to the control unit, the power storage unit being charged from the first lug and the hanger bar when the electrical switch unit switches off electrical current supply between the first lug and the metallic hanger bar. | 05-19-2016 |
20160131295 | A METHOD OF MANUFACTURING AN ELBOW CHANNEL AND AN ELBOW CHANNEL - A method of manufacturing an elbow channel with an elbow angle. The method comprises manufacturing an elongated filament-reinforced plastic composite hollow body by a filament winding technology; miter-cutting the elongated hollow body at a cut angle, which is half of the desired elbow angle, to form a first body piece having an oblique first end, and a second body piece having an oblique second end; placing the first body piece and the second body piece in relation to each other to abut the first end and the second end against each other, so that the longitudinal symmetry axes of the first and second body pieces are at said elbow angle to each other; and attaching the first end and the second end to each other to form said elbow channel. The elbow channel is formed from first and second hollow body pieces is also provided. | 05-12-2016 |
20160130681 | SOLVENT EXTRACTION SETTLER ARRANGEMENT - In a solvent extraction settler arrangement the outlet box comprises an inner tube arranged vertically inside a shaft, the inner tube being spaced from the side wall of the shaft to define an intermediate space between the inner tube and the shaft. The inner tube has an inner space and an opening at the lower part of the inner tube adjacent the bottom to form a flow path for the heavy solution phase to flow to the inner space. The shaft comprises a second outlet which is separate in relation to the discharge outlet and above the level of the discharge outlet. The second outlet opens through the side wall to the intermediate space at a location adjacent to the upper end of the shaft and at the level of said layer of entrained light solution phase for discharging said layer of entrained light solution phase from the intermediate space. | 05-12-2016 |
20160123527 | A DRIVE SUPPORTING STRUCTURE AND A DRIVE SUPPORT ELEMENT - The invention relates to a drive supporting structure ( | 05-05-2016 |
20160121337 | STRESS DISTRIBUTION ELEMENT FOR A GRINDING MILL SHELL - Provided is a stress distribution element for a mill shell joint, comprising an elongated body having a proximal end and a distal end. The elongated body varies in one dimension from the proximal end to the distal end to distribute stress forces from the proximal end to the distal end. The invention also provides a stress distribution system, a stress distribution assembly, a mill shell section, a mill shell and a method of distributing stress incorporating the stress distribution element. | 05-05-2016 |
20160121245 | FILTER ELEMENT AND METHOD FOR MANUFACTURING THE FILTER ELEMENT - Magnetic elements are provided inside a ceramic filter plate for creating a magnetic field. In an embodiment of the invention, magnetic elements are located in cavities provided in partition walls which define filtrate channels between themselves. The filter plate can be used for increasing filtration capacity particularly in magnetite applications. The magnetic field causes an attractive force on the magnetic particles and thus increases the amount of material forming on the filter plate in a vacuum filter, such as a capillary action filter, conventional rotary vacuum filter or drum filter or capillary action drum filter. | 05-05-2016 |
20160121244 | A DISC FILTER APPARATUS - The disc filter apparatus comprises a drum that is rotatable around a shaft having a centre axis. The drum comprises filter discs positioned at an axial distance from each other. Each filter disc comprises a rim structure supported on the shaft and truncated, sector shaped filter plates mounted circumferentially in a radial plane to form an essentially continuous and planar disc surface. Each filter plate is attached with a fastening arrangement to the rim structure from a lower edge portion of the filter plate through at least three fastening points. The fastening arrangement between the filter plate and the rim structure comprises at each fastening point in the rim structure an adjustable sleeve construction. Prior art solutions require a radially planar fastening surface in the rim structure in order to have all the filter plates in one filter disc in the same radial plane. This is not necessary in the invention due to the use of an adjustable sleeve construction. | 05-05-2016 |
20160115609 | METHOD FOR METAL ELECTROWINNING AND AN ELECTROWINNING CELL - The invention relates to a method for electrowinning a metal from an electrolyte in an electrowinning cell that comprises an electrolysis tank, one or more anodes, and one or more cathodes, which anodes and cathodes are housed in the electrolysis tank. The method comprises supplying sulfur dioxide to the anode to depolarize the anode process and to reduce the energy consumption of the electrowinning cell. | 04-28-2016 |
20160115568 | METHOD OF RECOVERING COPPER AND PRECIOUS METALS - Provided is a method of recovering copper and one or more precious metals comprising leaching copper-bearing ore and/or concentrate under atmospheric or slightly pressurized conditions at a temperature below the boiling point of the leach solution in a sulfuric acidic solution in the presence of one or more alkali metal or alkali earth metal halides, whereby the total halide concentration is from 30 to 115 g/L, to dissolve copper and to obtain a leaching liquor comprising copper, sulfur species, and halides in solution. The leaching liquor is then subjected to a solid-liquid separation after which a first aqueous pregnant leach solution and a copper depleted leaching residue are obtained. Copper is purified by solvent extraction from the first aqueous pregnant leach solution to obtain a first copper-containing loaded organic solution and a first aqueous raffinate. The copper containing loaded organic solution is stripped and copper is recovered. | 04-28-2016 |
20160115563 | METHOD FOR RECOVERING METALS - The invention relates to a method and apparatus for recovering metals from metalliferous starting materials comprising steps of | 04-28-2016 |
20160084320 | DRIVE SYSTEM FOR AN APPARATUS SEPARATING HOT PARTICLES - A drive system for an apparatus separating hot particles being received by a moving surface includes a drive shaft for driving the moving surface receiving the hot particles, a drive unit for rotating the drive shaft, and a flexible coupling arranged between the drive shaft and the drive unit. The flexible coupling includes thin portions defining a portion of a heat transfer path from the drive shaft to the drive unit. The thin portions have large surface area to volume ratios for extending the heat transfer path. The thin portions dissipate heat when the flexible coupling is driven by the drive unit. A method for dissipating heat from a drive system for an apparatus for separating hot particles includes providing a flexible coupling and dissipating heat from the flexible coupling. | 03-24-2016 |
20160084314 | THERMAL MANAGEMENT OF BEARINGS IN HOT MAGNETIC SEPARATOR - An apparatus for separating hot particles including a plurality of materials having different magnetic properties includes a plurality of permanent magnets arranged in a magnet assembly and configured to create a magnetic flux capable of providing a coercive force on at least a portion of the particles, the magnet assembly being mounted on a stationary shaft, a moving surface proximate the magnet assembly for carrying the particles in a downward path through the magnetic flux while the coercive force attracts the portion of the hot particles toward the moving surface, the moving surface being mounted on a drive shaft supported by a bearing, and an inert gas supply system which supplies inert gas into a gap between the stationary shaft and the drive shaft for cooling the drive shaft and the bearings, and into the magnet assembly for purging the magnet assembly of oxygen. | 03-24-2016 |
20160082445 | HOT MAGNETIC SEPARATOR INCLUDING HEAT SHIELD - An apparatus for separating hot particles including a plurality of materials having different magnetic properties includes a plurality of permanent magnets arranged in a magnet assembly and configured to create a magnetic flux capable of providing a coercive force on at least a portion of the particles, a moving surface proximate the magnet assembly for carrying the particles in a downward path through the magnetic flux while the coercive force attracts the portion of the hot particles toward the moving surface, a feed system for supplying the particles onto the moving surface, and a cooling system for maintaining the temperature of the magnets substantially below their Curie point, the cooling system comprising a pair of plates which are disposed between the magnet assembly and the moving surface, the cooling system configured to operate by passing a contained cooling fluid through a gap between the pair of plates. | 03-24-2016 |
20160075555 | PROCESS AND PLANT FOR SEPARATING HEAVY METALS FROM PHOSPHORIC STARTING MATERIAL - A process for separating heavy metals from phosphoric starting material comprises the following steps:
| 03-17-2016 |
20160074784 | FILTER PLATE, FILTER DISC APPARATUS, AND A METHOD FOR CONTROLLING A DISC FILTER - A ceramic filter plate ( | 03-17-2016 |
20160069748 | APPARATUS FOR TEMPERATURE MEASUREMENTS OF A MOLTEN BATH IN A TOP SUBMERGED INJECTION LANCE INSTALLATION - A temperature measuring apparatus for a top submerged lancing installation, for use in measuring the temperature of a molten bath that includes a slag phase, during a pyro-metallurgical operation conducted in a reactor of the installation, includes a top submerged injecting top submerged injecting lance having at least an outer pipe and an inner pipe. A bore is defined by the inner pipe and an annular passage is defined in part by an inner surface of the outer pipe. The apparatus further includes a pyrometer device of which at least a sensor head part is mounted in relation to the top submerged injecting lance and operable both to receive infrared energy passing longitudinally within the lance from an outlet end of the lance. The sensor head part also is operable to focus the received infrared energy to enable generation of an output signal or display indicative of the temperature of a molten bath in which an outlet end portion of the lance is submerged and from which the infrared energy is received. | 03-10-2016 |
20160068927 | METHOD OF PREPARING A GOLD-CONTAINING SOLUTION AND PROCESS ARRANGEMENT FOR RECOVERING GOLD AND SILVER - The invention relates to a method for preparing a gold-containing solution by chloride leaching from gold-bearing raw materials. A further object of the invention is to provide a method for recovering gold and optionally silver from the prepared gold-containing solution. The invention relates also to a process arrangement for recovering gold and optionally silver. | 03-10-2016 |
20160067715 | A METHOD OF MAKING A LIFTER BAR, A REFURBISHED LIFTER BAR AND A MOULD - The invention relates to a method of making a lifter bar ( | 03-10-2016 |
20160054064 | GAS SLIDE HEAT EXCHANGER - A heat exchanger ( | 02-25-2016 |
20160040935 | METHOD AND ARRANGEMENT FOR FEEDING FEED MATERIAL FROM A BIN FOR FEED MATERIAL INTO A FURNACE SPACE OF A SMELTING FURNACE - The invention relates to a method and to an arrangement for feeding feed material from a bin ( | 02-11-2016 |
20160002802 | MEASUREMENT OF ELECTRIC CURRENT IN AN INDIVIDUAL ELECTRODE IN AN ELECTROLYSIS SYSTEM - The invention relates to a method and current measuring arrangement for measuring electric current flowing in an individual electrode in an electrolysis system. The electrolysis system comprises a plurality of interleaved electrodes ( | 01-07-2016 |
20150375235 | METHOD OF CONTROLLING A GRINDING MILL PROCESS - The invention relates to a method of controlling a grinding mill process in a grinding circuit, which said grinding circuit comprises at least a grinding mill ( | 12-31-2015 |
20150367309 | METHOD AND ARRANGEMENT FOR REDUCING AUTOFLASH AND SLURRY CARRYOVER IN AUTOCLAVE FLASH SYSTEMS - The present invention relates to a method and an arrangement for pressure and temperature let down of autoclave discharge slurry, in particular in pressure oxidation or high pressure acid leach of metal containing ore. The method of the invention comprises a step of precooling the autoclave discharge slurry by contacting the autoclave discharge slurry with a cooling fluid for reducing the temperature of the autoclave discharge slurry prior to its entry into the first flash stage. The invention further relates to an autoclave ( | 12-24-2015 |
20150360149 | METHOD FOR AIR DRYING A FILTER CAKE AND FILTER PLATE - A method for air drying a filter cake contained in a filter chamber defined by a first filter plate, which comprises an air inlet for supplying drying air into the filter chamber to expel fluids from the filter cake, and a second filter plate, which comprises a fluid outlet for discharging fluids from the filter chamber. The method comprises throttling the air flow into the filter chamber by means of an orifice plate that acts as a flow resistance connected in series with the flow resistance of the filter chamber. Preferably the orifice of the orifice plate is so sized that, in case the flow resistance of the filter chamber falls below a normal level, choked flow is achieved in the orifice. | 12-17-2015 |
20150352504 | STIRRED TANK REACTOR - The invention relates to a stirred tank reactor for gas-liquid mass transfer in a slurry. The reactor includes a reactor tank ( | 12-10-2015 |
20150345556 | FLUID BEARINGS - The present invention provides improvements to a fluid bearing ( | 12-03-2015 |
20150343347 | CONNECTOR FOR A FILTER PLATE - A connector ( | 12-03-2015 |
20150330934 | METHOD AND APPARATUS FOR MONITORING THE QUALITY OF ORE - The invention relates to a method and an apparatus for monitoring the quality of an ore delivered to flotation concentration and the state of a slurry prepared from said ore. In the method, two or more working electrodes ( | 11-19-2015 |
20150329933 | TOP-ENTRY FLASH VESSEL ARRANGEMENT - The present invention relates to a method and an arrangement for pressure and temperature let down of autoclave discharge slurry ( | 11-19-2015 |
20150315673 | METHOD FOR PRODUCING MATTE OR CRUDE METAL IN A SUSPENSION SMELTING FURNACE AND SUSPENSION SMELTING FURNACE - A method is provided for producing matte such as copper or nickel matte or crude metal such as blister copper in a suspension smelting furnace such as a flash smelting furnace or a flash converting furnace. Also provided is a suspension smelting furnace such as a flash smelting furnace or a flash converting furnace. The suspension smelting furnace comprises a reaction shaft, a settler in communication with a lower end of the reaction shaft, and an uptake shaft. The settler extending in two opposite directions from a landing zone for a jet of oxidized suspension below the reaction shaft in the settler so that the settler comprises a first settler part on a first side of the landing zone and a second settler part on an opposite second side of the landing zone. | 11-05-2015 |
20150312972 | METHOD FOR SEALING OF GAPS IN A CONTACT SHOE RING AND SEALING ARRANGEMENT - A method and sealing arrangement for sealing of gaps in a contact shoe ring. The sealing arrangement comprises a refractory fabric which is folded to a substantially U-form shape having a first branch portion attached with refractory glue to the first side edge of the first contact shoe element and a second branch portion attached with refractory glue to the second side edge of the second contact shoe element. At least one refractory felt strip is arranged between the first and second branch portions to fill the space therebetween. A cover strip made of refractory fabric is attached with refractory glue to the side faces of the first and second contact shoe element. | 10-29-2015 |
20150307955 | METHOD AND APPARATUS FOR ACID GRANULATION OF MATTE - A method is provided for leaching the metals while granulating molten matte, comprising the steps of feeding a molten matte as a falling stream into a granulation chamber, spraying a liquid jet on the stream of molten matte to atomize the matte, and cooling the matte particles thus formed. The liquid jet comprises an acid solution containing water and sulfuric acid so that the acid solution starts leaching metals from the molten matte when the liquid jet contacts the molten matte. Part of product solution from granulation can be circulated to liquid jets to increase the metal content in the solution and to reduce its acid con-tent. | 10-29-2015 |
20150300740 | METHOD FOR SMELTING NON-FERROUS METAL SULFIDES IN A SUSPENSION SMELTING FURNACE AND SUSPENSION SMELTING FURNACE - The invention relates to a method for smelting non-ferrous metal sulfides ( | 10-22-2015 |
20150265947 | FILLING SHOE AND METHOD FOR OPERATING A FILTER DEVICE - The invention suggests a filter device having a stationary head piece and a movable end piece, a pack of at least a recess plate and an adjacent recess plate between the head piece and the end piece, the recess plate and/or the adjacent recess plate having a recess, that forms a filter chamber between the recess plate and the adjacent recess plate, a first filter cloth and a second filter cloth between the recess plate and the adjacent recess plate for retaining as a filter cake a solid content of a suspension, and allowing a remaining liquid fraction of the suspension to pass as a filtrate, and a suspension pipe running through the pack between the head piece and the end piece for charging the suspension through the filling shoe between the first filter cloth and the second filter cloth into the filter chamber, and a filling shoe comprising an outlet section for the suspension, clamping the first filter cloth to the recess plate during filtering operation of the filter device, an anchoring section for anchoring the filling shoe in an anchoring position to the recess plate, and a pivot section between the outlet section and the anchoring section, that tiltably connects the outlet section to the anchoring section. The invention further suggests a method for operating such filter device. | 09-24-2015 |
20150258486 | RADIAL-FLOW SCRUBBER - A radial-flow scrubber ( | 09-17-2015 |
20150241321 | METHOD AND APPARATUS FOR TAKING SLURRY SAMPLES FROM A CONTINUOUS GRAVITY PROCESS FLOW, AND USE OF APPARATUS - A method and an apparatus for taking slurry samples from a continuous gravity process flow (PF). The sampling is carried out in two stages by first and second sampling units ( | 08-27-2015 |
20150240832 | BLADE OF AXIAL FLOW IMPELLER AND AXIAL FLOW IMPELLER - The invention relates to a blade ( | 08-27-2015 |
20150233644 | ARRANGEMENT FOR FEEDING FINE-GRAINED MATTER TO A CONCENTRATE OR MATTE BURNER OF A SUSPENSION SMELTING FURNACE - The invention relates to an arrangement for feeding fine-grained matter to a concentrate or matte burner ( | 08-20-2015 |
20150233643 | METHOD AND ARRANGEMENT FOR FEEDING FINE-GRAINED MATTER TO A CONCENTRATE OR MATTE BURNER OF A SUSPENSION SMELTING FURNACE - The invention relates to a method and to an arrangement for feeding fine-grained matter to a concentrate or matte burner ( | 08-20-2015 |
20150233641 | MACHINE FOR THE THERMAL TREATMENT OF BULK MATERIAL - This invention relates to a machine for the thermal treatment of bulk material, in particular a sintering or pelletizing machine, comprising a travelling grate ( | 08-20-2015 |
20150232960 | SOLVENT EXTRACTION METHOD AND SOLVENT EXTRACTION SETTLER - A solvent extraction method for hydrometallurgical liquid-liquid extraction processes, in which method solution phases are separated from a dispersion while the dispersion flows horizontally in a settler from a feed end to a discharge end. The mass flow of the dispersion and solution phases is divided into a plurality of parallel and mutually separated plug flows flowing in the settler from the feed end to the discharge end. The settler ( | 08-20-2015 |
20150211798 | METHOD AND ARRANGEMENT FOR FEEDING FINE-GRAINED MATTER TO A CONCENTRATE BURNER OR A MATTE BURNER OF A SUSPENSION SMELTING FURNACE AND CONTROLLING MEANS AND COMPUTER PROGRAM PRODUCT - The invention relates to a method and to an arrangement for feeding fine-grained matter to a concentrate burner ( | 07-30-2015 |
20150202584 | PROCESS FOR OPERATING A FUEL FIRED REACTOR - A process for operating a fuel fired reactor includes introducing fuel into the reactor and burning the fuel in the reactor by means of at least one main burner. Relevant parameters of the process are monitored. Within a predetermined critical operating range for an enforced shut down, a secondary, more stringent operating range is implemented as shut down criteria. The main burner is shut down upon one or more of the relevant parameters leaving the secondary operating range while at least one pilot burner continues to operate as long as the relevant parameters are maintained within the critical operating range. | 07-23-2015 |
20150190734 | SOLVENT EXTRACTION SETTLER ARRANGEMENT - A solvent extraction settler arrangement comprises a settler ( | 07-09-2015 |
20150190732 | SOLVENT EXTRACTION SETTLER COMPRISING A FOUNDATION - A solvent extraction settler ( | 07-09-2015 |
20150176903 | TAPHOLE ASSEMBLY, METHOD FOR MANUFACTURING A TAPHOLE ASSEMBLY, AND METALLURGICAL FURNACE - The invention relates to a taphole assembly ( | 06-25-2015 |
20150176145 | BUBBLE COLLECTOR GUIDE AND USE THEREOF - The invention concerns a bubble collector guide for use in an electrolysis process, which comprises a plurality of guide members arranged at a distance from each other, the guide members comprising a lower side. The guide members can be arranged horizontally on the vertical surface of an electrode so that the lower side of the guide member forms a downwards facing surface that is substantially orthogonal to the vertical surface of the electrode, so as to collect bubbles of gas generated at the electrode. | 06-25-2015 |
20150159236 | SOLVENT EXTRACTION SETTLER ARRANGEMENT - A solvent extraction settler arrangement comprising a mixing unit for preparing a dispersion from mutually immiscible solutions and a settler having a feed end and a discharge end. The settler is arranged to separate solution phases from a dispersion fed from the feed end while the dispersion flows towards the discharge end. The arrangement further comprises a feeding device located at the feed end for feeding the dispersion prepared by the mixing unit to the settler. The feeding device comprises an elongated feed launder having a first end for receiving the dispersion from the mixing unit, and a second end. The feed launder extends alongside the feed end of the settler. The feed launder has a form of a conical tube with a cross-section converging towards the second end and an inclined bottom ascending towards the second end. A plurality of feed pipes are arranged along the length of the feed launder at a distance from each other, each feed pipe having a third end opening to the inner space of the feed launder at the bottom to receive the dispersion from the feed launder and a fourth end opening to the settler to conduct the dispersion to the settler. | 06-11-2015 |
20150151460 | METHOD OF MANUFACTURING A SEPARATION FENCE AND SEPARATION FENCE - In a method for fabricating a separation fence ( | 06-04-2015 |
20150151218 | METHOD OF MANUFACTURING A SOLVENT EXTRACTION SETTLER AND SOLVENT EXTRACTION SETTLER - A method of manufacturing a solvent extraction settler comprises manufacturing at the site of manufacture, such as in an engineering workshop, a plurality of self-supporting settler element modules ( | 06-04-2015 |
20150147248 | PROCESS AND EQUIPMENT FOR PRODUCING PURE LITHIUM-CONTAINING SOLUTION - The invention relates to a process for producing a lithium-containing solution from a lithium-containing raw-material solution, by: a) precipitating a first part of magnesium and calcium from the lithium-containing raw-material solution, b) extracting a second part of calcium and magnesium from the lithium-containing solution by liquid-liquid extraction, a resultant product being a lithium-containing solution. The invention also relates to equipment for producing a lithium-containing solution from a lithium-containing raw-material solution, including a precipitation unit to remove a first part of magnesium and calcium and an extraction unit to receive the lithium-containing raw-material solution and to remove therefrom a second part of calcium and magnesium by liquid-liquid extraction, and control unit to control the operation of the precipitation unit. | 05-28-2015 |
20150144540 | METHOD AND APPARATUS FOR REGENERATION OF EXTRACTION SOLUTION IN METAL EXTRACTION PROCESSES - 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 are provided. 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. | 05-28-2015 |
20150143951 | METHOD AND ARRANGEMENT FOR REFINING COPPER CONCENTRATE - The invention relates to a method and to an arrangement for refining copper concentrate ( | 05-28-2015 |
20150114914 | METHOD FOR FILTERING A SUSPENSION AND RECESS PLATE - The invention relates to a method for filtering a suspension in a filter device comprising a sequence of steps, including piping the suspension into the filter chamber between the filter cloths, directing the suspension through the filter cloths, discharging a liquid fraction of the suspension through the first duct and the second duct out of the filter chamber and through the first outlet of the first recess plate and the second outlet of the second recess plate as a filtrate, and piping a drying gas from the head piece into the filter chamber through the first duct and discharging the same through the second duct. The invention further relates to such a recess plate that is designed for packing a plurality of specimens of the recess plate into a pack between a stationary head piece and a moveable end piece of a filter device. | 04-30-2015 |
20150108072 | METHOD FOR SEALING A FILTER CHAMBER AND FILTER DEVICE - The invention relates to a method for sealing a filter chamber of a filter device, comprising a sequence of steps, including moving the recess plate close to the adjacent recess plate for building the pack, and securing the recess plate to the adjacent recess plate, piping a suspension into the filter chamber on a cake side of a filter cloth, letting a solid content of the suspension settle on the filter cloth as a filter cake, and a liquid fraction of the suspension permeate the filter cloth to a filtrate side thereof, and discharging the filtrate out of the filter chamber. The invention further relates to a recess plate for use in a filter device, the recess plate comprising a recess, and a groove encircling the recess, the groove being adapted to receive a sealing ring for sealing a filter chamber. | 04-23-2015 |
20150102537 | METHOD AND ARRANGEMENT FOR REMOVING OUTGROWTH IN A SUSPENSION SMELTING FURNACE - The invention relates to method and to an arrangement for removing outgrowth in a suspension smelting furnace. The suspension smelting furnace comprising a reaction shaft having a reaction shaft structure. The reaction shaft comprises at least one opening for an outgrowth removal means. The movable piston is arranged such that the movable piston can move in the opening in the reaction shaft and into the reaction shaft to push possible outgrowth in the reaction shaft. | 04-16-2015 |
20150096926 | METHOD AND APPARATUS FOR CONTROLLING THE FLOTATION PROCESS OF PYRITE-CONTAINING SULPHIDE ORES - Method and apparatus for controlling the flotation process of sulphide ores including separation of sulphide minerals from pyrite in an alkaline environment created by lime. The method comprises measuring the molybdenum electrode potential of an aqueous slurry of the ore and adjusting the addition of lime based on the measured molybdenum electrode potential to maintain the molybdenum electrode potential of the slurry in a preselected range. The apparatus comprises means ( | 04-09-2015 |
20150068986 | FILTER DEVICE AND METHOD FOR FILTERING A SUSPENSION - The invention relates to a filter device for filtering a suspension, and the method of operation thereof, wherein between a stationary head piece and a movable end piece, the filter device has a pack of a recess plate and an adjacent recess plate, the filter device has a suspension pipe for piping a first stream of the suspension from the head piece into the pack, wherein connecting to the end piece, and a supply pipe for piping a second stream of the suspension into the suspension pipe, forming a filter chamber, the recess plate and/or the adjacent recess plate has a recess, from the suspension pipe, the recess plate has a suspension duct for piping the suspension into the filter chamber, and wherein between the recess plate and the adjacent recess plate, the filter device has at least one filter cloth for filtering a solid content out of the suspension. | 03-12-2015 |
20150068956 | METHOD AND APPARATUS FOR SEPARATION OF MOLYBDENITE FROM PYRITE CONTAINING COPPER-MOLYBDENUM ORES - A method and an apparatus for the separation of the mineral components of a pyrite containing copper-molybdenum ore by flotation. The method comprises grinding the ore in the presence of soda ash in an open circuit to produce an aqueous ore slurry; subjecting the slurry to a collective flash flotation step ( | 03-12-2015 |
20150044124 | METHOD FOR RECOVERING LITHIUM CARBONATE - A method and arrangement for recovering lithium carbonate from a raw material containing lithium, which method comprises pulping ( | 02-12-2015 |
20150034491 | ANODE AND METHOD OF OPERATING AN ELECTROLYSIS CELL - The invention relates to an anode for electrowinning process in an electrolytic cell, and the method of operation thereof, having cell walls and a cell bottom for holding an electrolyte and electrolyte feeding means, which anode comprises a hanger bar for supporting the anode, a conducting rod for distributing the current, an anode body having at least partly conductive structure. The anode body allows electrolyte penetration and is at least partly covered by electrocatalytic coating, when in connection with the anode there is arranged a non-conductive element, which is restricted to the conductive structure of the anode body, at least from its one side, and which non-conductive element is arranged at a distance A from the electrolyte surface level, when the non-conductive element provides a means for attaching the anode to the cell. | 02-05-2015 |
20140332402 | PROCESS AND APPARATUS FOR PRODUCING HYDROGEN - A process for producing hydrogen for use in a subsequent methanation process includes electrochemically converting water into hydrogen and oxygen. The hydrogen is depleted with electrolyte aerosols. Then, the electrolyte aerosols are separated from the depleted hydrogen in a wet electrostatic precipitator in a hydrogen atmosphere. | 11-13-2014 |