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Matches 701 - 750 out of 8,912

Document Document Title
WO/2013/129017A1
The purpose of the present invention is to recover, at a low cost and efficiently, gold adsorbed on activated carbon. A gold recovery method which includes a step of subjecting gold adsorbed on activated carbon to elution to obtain a con...  
WO/2013/129130A1
The purpose of the present invention is to obtain rhenium with low-grade arsenic in a stable manner by separating and removing arsenic, as an impurity, in a stable state from raw materials containing rhenium and arsenic, and reducing the...  
WO/2013/128536A1
The present invention addresses the problem of separating with good efficiency the rare earths of La and Gd from optical glass waste. Carbon is added to pulverized optical glass waste and the mixture is subjected to reduction roasting in...  
WO/2013/124831A3
The invention relates to a complexing system for extracting a radionuclide from a waste solution comprising calix[n]arene groups immobilized on the surface of a porous conducting material.  
WO/2013/120132A1
A process for recovering zinc oxide from a zinc ore, the process including the steps of: leaching the zinc ore with an alkaline lixiviant comprising an aqueous mixture of NH3 and NH4Cl, or ionic equivalent, having a NH4Cl concentration o...  
WO/2013/120131A1
A process for the production of a high grade nickel product including the steps of: a) providing at least one heap of a nickeliferous lateritic ore and leaching that heap with a suitable lixiviant, preferably sulfuric acid solution, to p...  
WO/2013/118695A1
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/2013/118300A1
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/2013/113132A3
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/2013/114621A1
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/2013/110419A1
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/2013/108478A1
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/2013/107937A1
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/2013/108645A1
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/2013/105291A1
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/2013/105453A1
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/2013/105454A1
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/2013/104059A1
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/2013/104045A1
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/2013/103099A1
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/2013/100823A3
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/2013/100626A1
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/2013/096071A1
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/2013/096070A1
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/2013/096893A1
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/2013/095827A1
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/2013/093194A1
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/2013/095825A1
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/2013/086555A1
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/2013/089400A1
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/2013/086606A1
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/2013/085052A1
 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/2013/080157A3
The invention refers to a method to evaluate the sulfoxidizing activity in a microbiologic process detecting the presence of the spermidine biomarker produced by the microorganisms that participate in such process. The method may compris...  
WO/2013/078553A1
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/2013/077168A1
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/2013/077296A1
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/2013/076812A1
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/2013/073376A1
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/2013/067577A1
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/2013/069562A1
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/2013/069563A1
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/2013/068645A1
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/2013/065050A8
Continuous methods and processes for removing Li ions from an aqueous feed solution.  
WO/2013/065050A1
Continuous methods and processes for removing Li ions from an aqueous feed solution.  
WO/2013/065773A1
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/2013/061848A1
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/2013/057557A1
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/2013/057317A1
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/2013/056543A1
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/2013/049953A3
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 ...  

Matches 701 - 750 out of 8,912