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Matches 201 - 250 out of 4,041

Document Document Title
WO/2013/118300
The purpose of the present invention is to provide a method for recovering lithium, which is capable of efficiently recovering lithium that does not contain impurities such as phosphorus and fluorine from a lithium-containing solution th...  
WO/2013/118695
Provided is a method for separating a heavy metal from a glass with high efficiency and at low cost. The present invention provides a method for separating a heavy metal from a glass containing a heavy metal oxide and a silica, comprisin...  
WO/2013/113132
The invention relates to bacterial strains isolated from Acidithiobacillus, which can bio-leach mineral sulphides at low temperatures. Said strains can grow at temperatures of between 5 and 10 °C and can adhere to solid supports, separa...  
WO/2013/114621
The objective of the present invention is to provide a lithium recovery method able to efficiently recover lithium not containing impurities such as phosphorus or fluorine. In the present invention, in a step for recovering valuable meta...  
WO/2013/110419
In a delignification of pulp with hydrogen peroxide catalysed with molybdate, molybdate can be recovered by bringing the aqueous solution containing molybdate into contact with a carrier material that comprises a layered silicate ion-exc...  
WO/2013/107937
The invention relates to an apparatus for separating one or more compounds from and/or for reducing the content of one or more compounds in a source material by extraction, the apparatus comprising devices for measuring the pressure, dev...  
WO/2013/108478
The purpose of the present invention is to efficiently recover gold in metal sulfide ores at low cost. This gold recovery method uses an acidic leaching solution including a chloride ion and/or a bromide ion as an anion and copper and ir...  
WO/2013/108645
The purpose of the present invention is to provide: a hydrogen sulfide gas production plant capable of recovering discharged waste hydrogen sulfide gas and efficiently supplying same to a treatment plant that performs treatment by using ...  
WO/2013/105454
A standing water column (20), which has a lower part that communicates with a liquid phase space and an upper part that communicates with a gas phase space inside a flash vessel (10), is provided to the flash vessel (10). A rise in the l...  
WO/2013/104059
There are provided processes for treating red mud. For example, the processes can comprise leaching red mud with HCl so as to obtain a leachate comprising ions of a first metal (for example aluminum) and a solid, and separating said soli...  
WO/2013/104045
A method for selectively processing a polymetallic oxide solution containing a plurality of base metals comprising at least one of: Cu, Co, Ni, Zn associated with iron, comprising acid leaching the solution; recovering a filtered leachat...  
WO/2013/105453
If the height from a slurry outlet (4) of a flash vessel (10) to a managed liquid level position (S) is denoted as H1, the height from the managed liquid level position (S) to the top of the flash vessel tower is denoted as H2, and the d...  
WO/2013/105291
High-purity manganese having a purity of 3 N (99.9%) or more, and characterized in that non-metal inclusions each having a size of 0.5 μm or more are contained at a density of 50000 particles or less per 1 g of the manganese. A method f...  
WO/2013/103099
A method for separating and recovering a plurality of rare-earth elements, wherein the method comprises: a step for introducing into a liquid a mixture of a rare-earth oxychloride and rare-earth oxychloride, the rare-earth oxychloride co...  
WO/2013/100626
The present invention relates to a method for recovering ferronickel from nickel ore, comprising: a reduction step consisting of slurrying the reduced powders obtained by reducing nickel ore using a hydrogen-containing reducing gas, in a...  
WO/2013/100823
The invention relates to the field of recycling industrial waste and to the field of environmental protection and can be used in the chemical industry, in the production of building materials, and also in other production areas associ...  
WO/2013/096070
Various embodiments provide a process roasting a metal bearing material under oxidizing conditions to produce an oxidized metal bearing material, roasting the oxidized metal bearing material under reducing conditions to produce a roasted...  
WO/2013/095825
The present invention provides a mixer-settler extraction circuit for separating liquids from each other. The mixer-settler extraction circuit includes a flow distributor. The flow distributor comprises a slat assembly which directs the ...  
WO/2013/095827
The present disclosure relates to a metal recovery process comprising a solvent extraction process. In an exemplary embodiment, the solution extraction system comprises a plant with a first and second circuit. A high-grade pregnant leach...  
WO/2013/096893
A method to extract and refine metal products from metal-bearing ores, including a method to extract and refine titanium products. Titanium products can be extracted from titanium-bearing ores with TiO2 and impurity levels unsuitable for...  
WO/2013/093194
2112057PC 17 (57) ABSTRACT The invention relates to a method for enhancing reactor volume use in a leaching stagein a hydrometallurgical process. According to the method, a concentrate or cal- cine leaching stageis carried out primarily ...  
WO/2013/096071
The present disclosure relates to a process and system for recovery of one or more metal values using solution extraction techniques and to a system for metal value recovery. In an exemplary embodiment, the solution extraction system com...  
WO/2013/086555
A method for concentrating metal chlorides in and separating same from an iron(III) chloride-containing hydrochloric acid solution is described, wherein iron is precipitated from the solution as iron oxide, preferably haematite and filte...  
WO/2013/089400
A method of extracting lithium from a lithium bearing solution and specifically, economically extracting lithium from a lithium bearing solution comprising the steps of: adding a nucleus particle to a lithium bearing solution; and precip...  
WO/2013/086606
The invention provides a process for the leaching of a laterite ore, concentrate, tailings or waste rock for the recovery of value metals, at least one value metal being nickel. The laterite ore or concentrate is subjected to a leaching ...  
WO/2013/085052
 Provided is a rare earth element recovery method in which rare earth elements, particularly including Nd and Dy, are efficiently leached from a leaching raw material containing rare earth elements, and then separated and recovered. ...  
WO/2013/078553
The present invention relates to method and a system of reducing chromium (VI) from a chromium bearing solution. The reduction of the chromium (VI) is achieved by contacting the chromium bearing solution which comprises chromium (VI) ion...  
WO/2013/077296
The purpose of the present invention is to provide a method for producing a high-purity nickel sulfate with less impurities, especially with less magnesium or less chlorides by regulating the concentration of the extractant and the pH co...  
WO/2013/076812
The present invention provides a method for producing a solution that contains nickel and cobalt with high purity by more efficiently and easily separating nickel and cobalt from a positive electrode material of a used nickel hydrogen ba...  
WO/2013/077168
Provided are a cobalt extractant capable of selectively extracting cobalt from an acidic solution containing a high concentration of manganese, and a cobalt extraction method in which the cobalt extractant is used. This cobalt extractant...  
WO/2013/073376
The purpose of the present invention is to provide a method for recovering a rare earth element, which is capable of efficiently recovering a rare earth element with high yield without using an expensive chemical, solvent or the like. In...  
WO/2013/069563
The objective of the present invention is to selectively extract cobalt from an acidic solution containing a high concentration of manganese. This cobalt extraction method extracts cobalt from an acidic solution containing manganese and ...  
WO/2013/069562
The objective of the present invention is to selectively extract light rare earth metals, and by extension, europium, from an acidic solution containing a plurality of types of rare earth metal. This valuable metal extraction agent is re...  
WO/2013/068645
A method for leaching a sulfidic metal concentrate in hydrometallurgical production of metal in a leaching process from which hot water vapor containing off-gas is conducted out and to which an acid solution warmed up to an elevated temp...  
WO/2013/067577
A method for treating an ore material with electromagnetic energy, the method comprising at least the steps of: agglomerating the ore material; irradiating the ore material with electromagnetic energy; thereby heating the liquid in the o...  
WO/2013/065050
Continuous methods and processes for removing Li ions from an aqueous feed solution.  
WO/2013/065773
The purpose of the present invention is to provide an ore slurry production method, which inhibits an increase in the viscosity of the ore slurry so as to prevent faulty transfer, and a metal refining method that utilizes the ore slurry ...  
WO/2013/065050
Continuous methods and processes for removing Li ions from an aqueous feed solution.  
WO/2013/061848
sulfate Provided is a method for easily and efficiently removing manganese from an acidic sulfuric acid solution that contains cobalt and manganese at low cost for the purpose of obtaining a high-purity cobalt sulfate aqueous solution th...  
WO/2013/057557
The present invention relates to a bioleaching bioreactor that has a system for injection and diffusion of air, which allows control of the fine size of the air bubble, thereby improving the distribution of oxygen and carbon dioxide that...  
WO/2013/056543
The present invention relates to a complete cycle preparation method for producing lithium iron phosphate by using lithium ore as a lithium source, comprising: carrying out calcining, acidifying, leaching and purifying separation on lith...  
WO/2013/057317
The present invention relates to method for recycling alkaline waste water from a stainless steel slag treatment process wherein stainless steel slag is brought into contact with water thereby producing said waste water, which waste wate...  
WO/2013/049886
A process for oxidising milled ore for recovery of noble metals including gold, silver and the platinum family, and other metals including copper. An acidic (pH under 0.7) aqueous oxidising solution includes chloride and bromide ions and...  
WO/2013/051715
Provided are: a palladium separating agent which is capable of separating palladium ions in a short time with high selectivity from solutions that contain palladium ions at low to high concentrations; and a method for separating palladiu...  
WO/2013/051965
The invention relates to a method for separating hydrogen-absorbing metals from solutions, and also to an apparatus for carrying out said method. A reduction is undertaken using hydrogen generated in a solution, wherein the reduction ...  
WO/2013/049953
The invention relates to an irrigation mat assembly which, due to the long time involved in assembling irrigation systems on piles and the loss of profit incurred through mounting each element of the system separately, is designed to be ...  
WO/2013/044380
The invention relates to a method for the extraction of precious metals, using halogens. It has been found that introducing halogens in the reactor in the form of hypohalites rather than free halogens simplified greatly the recycling of ...  
WO/2013/044376
A system and a method for separating rare earth element compounds from a slurry of mixed rare earth element compounds, comprising flowing the slurry of mixed rare earth element compounds through at least a first channel rigged with at le...  
WO/2013/045855
The invention relates to a process for treating an effluent that contains metals, comprising: - at least one step of extraction of the chloride ions present in the effluent, in the form of metal complexes, by liquid-liquid extraction in ...  
WO/2013/042340
According to a metal recovery method, it is possible to recover with high efficiency metals (metal ions) contained in a solution by culturing red algae belonging to the order Cyanidiales in a solution wherein the cell concentration there...  

Matches 201 - 250 out of 4,041