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WO/2016/209093A1 |
The present invention provides a method of chromium separation from sewage, including tanning sewage, as a result of a double exchange reaction yielding insoluble salts of chromium and organic acids which are very easy to filtrate and en...
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WO/2016/208489A1 |
Provided is a method for producing scandium oxide that makes it possible to produce scandium oxide having a suppressed sulfur content when obtaining scandium oxide from scandium oxalate containing sulfur compounds as impurities. The meth...
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WO/2016/209178A1 |
The invention comprises leaching lateritic ores used during the production of nickel-cobalt, or leaching of secondary scandium sources in which scandium is enriched within the precipitate during a pH controlled solution purification proc...
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WO/2016/202257A1 |
Provided are a method for recovering phosphorus and a rare earth from a rare earth-containing phosphate ore, and a substance containing a rare earth phosphate. The method comprises: step S1, leaching the rare earth phosphate ore by using...
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WO/2016/201558A1 |
A method for hydrometallurgical extraction of rare earth elements and niobium from a an ore or a flotation concentrate containing rare earth elements, niobium, iron and alkali earth metals, the method comprising removal of the alkali ear...
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WO/2016/197244A1 |
A dry slag atomization is applied in upgrading slags. The atomized slag may be subjected to a leaching process to produce upgraded slag. In the case of titania-rich slags, conveniently, the titanium in the atomized slag has been oxidized...
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WO/2016/198872A1 |
The present application relates to the electrochemical extraction of lead (Pb) from a lead- containing material using a deep eutectic solvent. This is of particular use in the recycling of the lead-based materials that result from energy...
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WO/2016/201456A1 |
The use: Extraction of valuable metals - uranium, vanadium, rhenium, rare earth elements (REE) and scandium during comprehensive black-shale ore processing. The objective: To increase the recovery of uranium, vanadium, uranium, molybdenu...
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WO/2016/198976A1 |
A method of integrated chemical and bacterial leaching of a base metal from a mineral is disclosed. The method includes leaching a base metal from a mineral with an ammoniacal thiosulfate chemical leaching solution having a pH from about...
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WO/2016/194658A1 |
[Problem] To provide an aqueous cobalt chloride solution purification method capable of efficiently removing impurities from a cobalt salt solution. [Solution] A method for bringing metallic nickel into contact with an aqueous cobalt chl...
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WO/2016/196949A1 |
Methods of isolating tungsten and, in particular, methods of separating tungsten and vanadium are described herein. The methods can generally comprise treating a tungsten-containing material in aqueous solution with a reducing agent suit...
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WO/2016/194709A1 |
Provided is a method, in preliminary neutralization of leach slurry generated in a hydrometallurgical process for nickel oxide ore, that is capable of promoting precipitation of iron contained in said leach slurry and limiting increases ...
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WO/2016/194659A1 |
[Problem] To provide an aqueous cobalt chloride solution purification method capable of efficiently removing impurities from a cobalt salt solution. [Solution] A method for bringing metallic nickel into contact with an aqueous cobalt chl...
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WO/2016/183611A1 |
A simplified or truncated hydrometallurgical method for the removal of uranium, thorium, radium, lead, bismuth and polonium and/ or other radionuclides from a radioactive copper concentrate to produce an upgraded copper concentrate havin...
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WO/2016/183610A1 |
A hydrometallurgical method for the removal of uranium, thorium, radium, lead, bismuth and polonium and/ or other radionuclides from a radioactive copper concentrate (92) to produce an upgraded copper concentrate having lowered emission ...
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WO/2016/183428A1 |
Lead is recovered from lead paste of a lead acid battery in a continuous process. The lead paste is contacted with a base to generate a supernatant and a precipitate. The precipitate is separated from the supernatant, and is contacted wi...
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WO/2016/182472A1 |
The proposed invention relates to processes for extracting and concentrating radionuclides and can be used in radiochemical technologies when treating liquid radioactive waste. The method for isolating americium from liquid radioactiv...
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WO/2016/181673A1 |
Provided is a method by which it is possible, in a wet-process method for refining nickel oxide ore, to efficiently reduce the amount of acid used in the leaching step and the amount of neutralizing agent used in the final neutralization...
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WO/2016/181039A1 |
A method is disclosed for recovering gold from a gold-containing organic solution containing soluble gold. The method comprises exposing the gold-containing organic solution to conditions that cause the organic solution to decompose, whe...
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WO/2016/178073A2 |
The invention is related to a method for the treatment of sludge containing iron and between 4.5% to 12% by weight of zinc. This method includes a leaching step wherein leaching agents include hydrochloric acid and chlorate, and wherein ...
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WO/2016/178040A1 |
The invention is related to a method for the treatment of sludge containing iron and between 4.5% to 12% by weight of zinc. This method includes a leaching step wherein leaching agents include hydrochloric acid and chlorate, and wherein ...
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WO/2016/177695A1 |
The invention relates to the use, as an extraction agent for extracting at least one rare earth from an aqueous phase including phosphoric acid, of at least one compound of the following general formula (I): where n is an integer equal t...
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WO/2016/171236A1 |
The problem of the present invention is to provide a method for solidifying and recovering rare-earth elements using microorganisms that have the capability to solidify rare-earth elements, and to provide a device for recovering rare-ear...
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WO/2016/170437A1 |
This invention relates to a process for recovering valuable metals from ore with significantly reduced water consumption through the discrete treatment and storage of coarse tailings. Ore is ground to produce a coarse particulate ore. Th...
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WO/2016/168933A1 |
The present application relates to methods for leaching and extraction of precious metals. For example, the present application relates to methods of leaching gold, palladium and/or platinum from a substance comprising gold, palladium an...
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WO/2016/168930A1 |
The present application relates to methods for the simultaneous leaching and extraction of precious metals. For example, the present application relates to methods of leaching and extracting gold and/or palladium from a substance compris...
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WO/2016/165027A1 |
This application pertains to methods of recovering metals from metal sulfides that involve contacting the metal sulfide with an acidic sulfate solution containing ferric sulfate and a reagent that has a thiocarbonyl functional group, whe...
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WO/2016/164986A1 |
A process for selectively separating a metallic constituent from other metals and other materials accompanying the metallic constituent in a mixture is described. The process comprises the step of providing the mixture in an aqueous solu...
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WO/2016/164600A1 |
Methods of recovering metals from metal-bearing materials, and more particularly, methods for improving leaching efficiency in extraction processes by employing a surfactant composition in the extraction process, as well as slurries usef...
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WO/2016/163269A1 |
[Problem] To provide a metal recovery method and a metal recovery apparatus which allow a metal to be recovered from a solution at low cost with high efficiency. [Solution] A metal recovery apparatus 100 according to the present inventio...
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WO/2016/156409A1 |
The invention provides an assay for identifying a bacterium capable of binding elemental heavy metal, comprising the following steps: cultivating a test bacterium in a suitable first culture medium; immersing at least a surface portion o...
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WO/2016/156405A1 |
The invention provides an assay for identifying a bacterium capable of binding elemental heavy metal, comprising the following steps: cultivating a test bacterium in a suitable first culture medium; immersing at least a surface portion o...
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WO/2016/159001A1 |
This method for removing iron from an iron-containing solution removes iron from an iron-containing solution that includes iron ions, wherein in a mixture obtained by adding a lithium ion cell positive electrode material that contains ma...
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WO/2016/159002A1 |
This method for removing copper from lithium ion battery scrap is a method for removing copper from lithium ion cell scrap that contains copper, wherein the method comprises: a leaching step for adding the lithium ion battery scrap to an...
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WO/2016/161032A1 |
Collectors for the beneficiation of a crude mineral ore and methods for making and using same. The collector can include a mixture of an oligomeric acid and a rosin oil. The oligomeric acid can include a dimer acid, a trimer acid, or a m...
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WO/2016/157629A1 |
Provided is a method for manufacturing a nickel and cobalt mixed sulfide that is capable of stabilizing nickel and cobalt concentrations in the sulfidation end solution at low levels and of limiting decreases in nickel and cobalt recover...
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WO/2016/151190A1 |
The invention relates to a method for regenerating the extractive potential of an organic hydroxyoxime-based ex- traction solution used in the recovery of metals by liquid- liquid extraction. The method is two-stage, in which a solid hyd...
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WO/2016/151959A1 |
Provided is a method for recovering scandium, which enables easy and efficient recovery of high-quality scandium from an acidic solution containing scandium. According to this method for recovering scandium, an acidic solution containing...
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WO/2016/152690A1 |
Provided is a production method that, using an industrially inexpensive H2 gas, generates coarse-grained high-purity Co powder from a sulfuric acid cobalt amine complex solution by using minute Co powder. A production process is for gene...
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WO/2016/150022A1 |
A process for recovering chromium from hexavalent chromium-containing wastewater comprises the following steps: (1) extracting hexavalent chromium in wastewater to an organic phase by using an extracting agent, and separating hexavalent ...
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WO/2016/151949A1 |
A method for producing a copper which comprises: a first step wherein a copper-containing material is added into a solution containing an oxidant so as to dissolve copper therein; and a second step wherein a solution (A) that contains an...
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WO/2016/148305A1 |
A method of leaching copper from a copper sulfide ore which includes adding a potential adjustment agent for lowering a potential of a leaching solution obtained after leaching copper from the copper sulfide ore by using iodide ion and i...
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WO/2016/146892A1 |
A method is disclosed for recovering gold from a gold-containing organic solution containing soluble gold. The method comprises contacting the gold- containing organic solution with an aqueous stripping solution in order to extract gold ...
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WO/2016/149303A1 |
A coalescing element for aggregating droplets of an emulsion. The coalescing element includes a nonwoven web substrate. A coalescer that includes the coalescing element can also include a housing and a fluid inlet and a fluid outlet each...
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WO/2016/141438A1 |
A process for the selective recovery of at least one Chalcophile Group Element ("CPM") as herein defined from a material containing the CPM and one or more non Chalcophile Group Elements ("NCE") as herein defined, said process including:...
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WO/2016/143837A1 |
An activated carbon regeneration method of the present invention is for eluting gold from activated carbon on which the gold has been adsorbed and thereafter recycling, in adsorption of the gold, the used activated carbon from which the ...
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WO/2016/139858A1 |
Provided is a method for producing nickel sulfide from an acidic sulfuric acid solution containing nickel, which is capable of suppressing particle diameters of nickel sulfide obtained thereby. The present invention is a method for produ...
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WO/2016/137356A1 |
The invention relates to hydrometallurgical methods for processing solutions comprising non-ferrous metals, by precipitating non-ferrous metal hydrates using a magnesium-containing precipitant. The essence of the invention consists in...
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WO/2016/136087A1 |
A wet smelting method for nickel oxide ores from which nickel, cobalt, etc. are recovered is provided with which it is possible to reduce the consumption of an acid in leaching, such as sulfuric acid, and to recover valuable metals such ...
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WO/2016/134420A1 |
A process is disclosed that enables a precious metal to be recovered from a sulfidic material. The process is particularly suited to treating single- and double-refractory pyritic materials such as pyrites and arsenopyrites. The process ...
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