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Matches 51 - 100 out of 8,145

Document Document Title
WO/2016/072529A1
The present invention relates to a method for collecting rare earth metals, the method being capable of extracting praseodymium (Pr) and neodymium (Nd) from a hydrochloric acid solution containing the elements at excellent efficiency, an...  
WO/2016/066905A1
The present invention provides a process for recovery of gold from gold-bearing raw materials comprising (a) leaching said gold-bearing raw material in a chloride containing leaching solution containing a total concentration of less than...  
WO/2016/064444A1
This application provides a metallurgical extraction technique, comprising: a) re-pulping a feed filter cake to make a filter cake slurry; b) grinding the filter cake slurry; c) leaching the ground filter cake slurry in a hot alkaline cy...  
WO/2016/064443A1
A process is provided for preparing a spent noble metal fixed-bed catalyst for precious metals recovery, comprising: a) adding the catalyst to a caustic solution to wash the spent catalyst and to make a wash slurry having an alkaline pH,...  
WO/2016/063187A1
A hydrometallurgical process is provided for the selective extraction of metal(s) from ore, concentrates, tailings, slags or other metal bearing solids, by combining simultaneously leaching with sorption in the state of wet solids to imp...  
WO/2016/058668A1
The invention relates to alkenyl (perfluoroalkyl) phosphinic acids, the production and intermediates thereof, the use thereof as monomers for the production of oligomers and/or polymers, the corresponding oligomers/polymers, the correspo...  
WO/2016/058007A3
Processing schemes for the extraction and/or separation of rare earth elements (REEs) from rare earth containing products such as rare earth mineral ore bodies and intermediate products derived from rare earth mineral ore bodies. The pro...  
WO/2016/058007A2
Processing schemes for the extraction and/or separation of rare earth elements (REEs) from rare earth containing products such as rare earth mineral ore bodies and intermediate products derived from rare earth mineral ore bodies. The pro...  
WO/2016/054683A1
A process for the recovery of lithium from lithium bearing mica rich minerals, the process comprising passing an ore (1) containing one or more lithium bearing mica rich minerals to at least one pre-treatment step (50), passing the pre-t...  
WO/2016/054952A1
A metallurgical process for a tungsten mineral raw material (100), comprising: employing a weak base leaching agent conducive to forming a local process circulation, the leaching agent generating two or more gases in an evaporative cryst...  
WO/2016/051098A1
The invention relates to a method for treating a product containing asbestos, comprising the following steps: a) supplying a divided solid product containing asbestos, b) preparing a reaction medium comprising the divided solid product c...  
WO/2016/049777A1
There is provided a process for purifying aluminum ions comprising: reacting an aluminum-containing material with an acid so as to obtain a composition comprising aluminum ions; precipitating said aluminum ions in the form of AlCl3; opti...  
WO/2016/052568A1
Provided are a leaching method for lithium ion battery scrap that makes it possible to effectively reduce treatment costs and a method for recovering metal from lithium ion battery scrap. This leaching method for lithium ion battery scra...  
WO/2016/050036A1
A method for removing phosphorus and calcium rich in rare earth from phosphorite containing rare earth through priority leaching by using mixed solution of phosphoric acid and calcium dihydrogen phosphate, mixing phosphorite containing r...  
WO/2016/052569A1
Provided are a leaching method for lithium ion battery scrap that makes it possible to effectively reduce treatment costs and a method for recovering metal from lithium ion battery scrap. This leaching method for lithium ion battery scra...  
WO/2016/047700A1
 The purpose of the present invention is to provide an adsorption separation material enabling selective adsorption of a rare earth element, and exhibiting excellent adsorption and recovery performance using a simplified device and ope...  
WO/2016/041436A1
A leaching agent and leaching method for leaching a rare earth element in an ion-adsorbed rare earth ore; the leaching agent is an aqueous solution comprising reducing ions. The present invention uses the aqueous solution comprising the ...  
WO/2016/040244A2
An environmentally friendly (e.g. no acid, base, or cyanide) system and process for large scale extraction of metal ion into aerobic molten salt (or ionic liquid) and the electrodeposition of metal (e.g. copper, gold, silver, etc.) from ...  
WO/2016/034630A1
Method of selective extraction of a metal from the family of platinoids, from a ceramic support containing said metal, comprising the following successive steps : a) said ceramic support containing said metal is brought into contact, in ...  
WO/2016/031699A1
Provided is a method for separating scandium, the method comprising a step for: mixing an acid or an alkali with an aqueous raw solution containing at least scandium, titanium and zirconium to adjust the pH to the range of 1.0-2.0, there...  
WO/2016/033360A1
A method of controlling frothing during atmospheric or substantially atmospheric leaching of a metal sulfide is disclosed. In some embodiments, the method may comprise the steps of (a) producing a metal sulfide concentrate via flotation;...  
WO/2016/030574A1
The present invention relates to the field of mineral engineering and metallurgy in general and to extraction of metal compounds from ores or concentrates by wet processes, and more particularly to a method and an arrangement for determi...  
WO/2016/026062A1
The present invention relates to a method for leaching secondary and primary sulphides of copper in a ferrous chloride medium with iron-oxidising bacteria adapted from the crushing of the mineral from the mine, comprising the steps of: m...  
WO/2016/027158A1
The present invention relates to a process and reactor for the leaching of primary sulphide minerals, with systems to solve the problem of the passivation layer as well as methods for selective metal deposition on the cathode. The propos...  
WO/2016/024470A1
Provided is a nickel recovery method that makes it possible to reduce the amount of nickel remaining in byproducts by recovering nickel from the byproducts of an electro-nickel manufacturing process which uses chlorine leaching, and that...  
WO/2016/023054A1
The invention relates to an integrated hydrometallurgical method for processing metal-containing feedstock, which comprises the following steps: a) dissolving metal-containing feedstock in aqueous hydrochloric acid; b) separating the ins...  
WO/2016/023812A1
Process for oxidising species in solution using hydrogen peroxide, said process comprising the steps of: - agitating a solution or suspension of particles in a tank with an agitating device; - adding hydrogen peroxide to said solution or...  
WO/2016/021559A1
The purpose of the present invention is to provide a novel technology for separating and recovering metal, namely, to provide a convenient, low-cost, and superiorly selective metal recovery method and metal recovery agent. This metal rec...  
WO/2016/022330A1
Disclosed herein are processes for selectively solubilizing iron from a substrate material containing both titanium and iron, such as ilmenite ore. In one embodiment, the process comprises contacting a substrate material comprising iron ...  
WO/2016/019419A1
This disclosure relates to a process for selectively extracting Fe(IlI) ions from an aqueous feedstock containing Fe(III) ions and non-ferric ions. The process comprises contacting the feedstock with an organic phase comprising a phospho...  
WO/2016/022820A3
An efficient perovskite solar cells can be synthesized from used car batteries by using both the anodes and cathodes of car batteries as material sources for the synthesis of lead iodide perovskite materials.  
WO/2016/022820A2
An efficient perovskite solar cells can be synthesized from used car batteries by using both the anodes and cathodes of car batteries as material sources for the synthesis of lead iodide perovskite materials.  
WO/2016/015168A1
The invention relates to a system of leaching cells which includes a group of units of cells that make it possible to perform therein both the leaching process as such, the individual, channelled discharge of the enriched solution, and t...  
WO/2016/017032A1
This method for manufacturing a concentrate comprises: a first mixed water generation step (S1) for generating first mixed water which is a mixture of first water and powdery ore; a first separation step (S2) for separating the first mix...  
WO/2016/011549A1
The invention provides processes that significantly reduce acid consumption while maintaining efficient leach recovery of copper from oxide and acid consuming ores. The invention provides a hydrometallurgical process that reduces acid re...  
WO/2016/011540A1
The invention provides hydrometallurgical processes for the recovery of rare earth values from ore, using simple crushing without beneficiation to produce an enriched and purified mixed rare earth concentrate. Ore is crushed to a relativ...  
WO/2016/012413A1
A method for treating a solid substrate comprising a support comprising, preferably consisting of, at least one oxide chosen from the oxides of a first metal chosen from the rare earths, the mixed oxides of a first metal chosen from the ...  
WO/2016/008932A1
The present invention relates to a process for separating palladium from the other metal elements contained in a nitric aqueous phase consisting in bringing a nitric aqueous phase containing, in addition to the palladium, at least one ot...  
WO/2016/008728A1
The invention relates to a process for separating rare earth metal ions from a liquid solvent, several rare earth metals being present in the solvent and a rare earth metal ion being oxidized to a tetravalent state or a rare earth metal ...  
WO/2016/008056A1
The present description relates to a process for producing magnesium metal from magnesium-bearing ores using serpentine. The process described herein consists generally in a mineral preparation and classification followed by leaching wit...  
WO/2016/004458A1
Disclosed is a method for extracting precious metal ions from a precious metal ion laden aqueous phase having a concentration of greater than 0.1 g/L of one or more precious metal ions. The method comprises contacting the precious metal ...  
WO/2016/007022A1
The invention relates to a process for extracting metals and salts from titanium-bearing minerals such as perovskite. More particularly, although not exclusively, the invention relates to extracting titanium dioxide and optionally other ...  
WO/2016/007020A1
The invention relates to a process for extracting metals and salts from titanium-bearing minerals such as perovskite. More particularly, although not exclusively, the invention relates to extracting titanium dioxide and optionally other ...  
WO/2016/007021A1
The invention relates to a process for extracting metals and salts from titanium-bearing minerals such as perovskite. More particularly, although not exclusively, the invention relates to extracting titanium dioxide and optionally other ...  
WO/2016/001479A1
The present invention describes a fermentation process aiming to clean lignite (Figure 1 ), with the purpose of improving the usability of lignite in energy production from the viewpoint of environmental protection, process technology, a...  
WO/2016/000231A1
A method for processing a zinc oxychloride-containing secondary material comprises the following steps: 1) leaching a zinc oxychloride-containing secondary material I by using an acid solution; 2) selectively extracting zinc by using a P...  
WO/2015/199098A1
 A method for processing copper-containing molybdenum ore including: a step for bringing a 50-100°C acidic aqueous solution into contact with copper-containing molybdenum ore while supplying an oxygen-containing gas to the acidic aque...  
WO/2015/199814A1
Described herein are systems and methods for producing a hardwearing or wear-resistant material. In one aspect, a first group of materials comprising zirconium dioxide (ZrO2), aluminum oxide (AI2O3), and one or both of calcium oxide (CaO...  
WO/2015/199224A1
 Provided is a system for efficiently recovering trace metal from a large amount of a raw material, such as when trace metal is recovered from nickel oxide ore. This ion exchange resin has, on a carrier, an amide derivative represented...  
WO/2015/193515A1
The present invention relates to a method for processing a noble metal-containing composition which contains an inorganic material and one or more noble metals selected from the group consisting of palladium (Pd), platinum (Pt), rhodium ...  

Matches 51 - 100 out of 8,145