Patent application number | Description | Published |
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 |
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 |
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 |
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 |
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 |
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 |
20120297929 | EXTRACTION PROCESS - A method for the selective recovery of uranium from a sulphate-based acidic aqueous solution of uranium containing iron and other metals by means of solvent extraction, in which the extractant used in the organic extraction solution is bis(2-ethylhexyl) phosphate and a liquid branched trialkyl phosphine oxide is the modifying agent. It is typical of the method that the uranium concentration in the feed solution is less than 50 mg/l and a reducing agent is introduced into the aqueous and/or extraction solution to prevent the permanent oxidation of iron to trivalent. In the method the majority of the extraction solution is circulated in a circuit consisting of the extraction stage and the storage tank and only a small part of the uranium-loaded extraction solution is routed to scrubbing and stripping. | 11-29-2012 |
20130176815 | DEVICE AND METHOD FOR DISPERSING TWO SOLUTIONS IN EACH OTHER IN SOLVENT EXTRACTION - The invention relates to a mixing device and method by means of which two solutions that are insoluble or poorly soluble in each other are mixed together into a dispersion. The device consists of at least three helical bars rotating upwards around a shaft and supported on it, so that the support structures between the shaft and the helical rods are set essentially in a horizontal position. The device and method are particularly suitable for mixing solvent extraction solutions used in the hydrometallurgical recovery of metals to form a dispersion. | 07-11-2013 |