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Matches 651 - 700 out of 7,262

Document Document Title
WO/2009/146571A2
In order to correct the significant problems associated with the distribution and uniformity of fluid in leaching heaps, the invention provides a device and the associated methods for monitoring, maintaining and controlling irrigation fo...  
WO/2009/146647A1
A method of extracting Te and bismuth oxide and recovering byproduct comprises: leaching raw materials with a Te content of ≥1.8% by utilizing a leaching system containing H2SO4, Cl-, Br-, NH4+ and NaClO3, reducing leach solution...  
WO/2009/146175A2
Disclosed is a process for removing metals from waste, particularly electronic waste (or "e-waste"). The process generally includes the steps of dissolving at least some of the metals from the waste with nitric acid reagent and then caus...  
WO/2009/146175A3
Disclosed is a process for removing metals from waste, particularly electronic waste (or "e-waste"). The process generally includes the steps of dissolving at least some of the metals from the waste with nitric acid reagent and then caus...  
WO/2009/141566A3
The invention relates to a method for treating industrial waste (1) containing asbestos and a hydraulic binding agent, said method being characterised in that it comprises at least one treatment step of so-called cold acid treatment (4) ...  
WO/2009/138563A1
The invention relates to a system used in the liquid-liquid extraction of metals, enabling the amount of organic solution required in the various stages of extraction to be significantly reduced. In accordance with the invention, the set...  
WO/2009/139715A1
A process for chlorinating ore, slag, mill scale, scrap, dust and other resources containing recoverable metals from the groups 4-6, 8-12, and 14 in the periodic table. The process comprises: a) forming a liquid fused salt melt consistin...  
WO/2009/135291A1
A method of recovering copper from a copper sulfide concentrate comprising a copper arsenic sulfosalt or a copper antimony sulfosalt, using pyrite as a catalyst. The concentrate and pyrite are added to an acidic sulfate leach solution. T...  
WO/2009/135665A1
The present invention relates to a method for recovering rhenium from an ethylene oxide catalyst containing rhenium and at least silver on a solid support, wherein at least a substantial portion of the rhenium present in the catalyst is ...  
WO/2009/132558A1
A method of extracting Ni and/or Co comprises: atmospheric agitation leaching limonite-type ore at heated state to avoid slow velocity of heap leaching, and heap leaching serpentine-type ore to obtain higher leaching velocity.  
WO/2009/133053A1
A method for reclaiming molybdate or tungstate from an aqueous solution, in which molybdate or tungstate from the aqueous solution is bound to a cationized inorganic carrier material which is insoluble in water at a pH value in the range...  
WO/2009/129653A1
A metallurgical process for extracting Ni, Co, Fe from laterite-nickel ore is disclosed. It concerns a comprehensive recovery and utilization of laterite-nickel ore, comprising the following steps: A) subjecting the laterite-nickel ore t...  
WO/2009/130006A1
The present invention relates to a cyanide-free process of isolating precious metal gold from a particulate material containing said metal, comprising the following steps of (i) preparing an aqueous mixture containing said particulate ma...  
WO/2009/130345A1
The invention relates to a method for recovering gold using hollow-fibre membranes and dispersion-based back-extraction in the presence of one or more of the following metals: Zn, Ag, Ni, Fe and Cu, in an aqueous cyanide medium.  
WO/2009/127018A1
(57) Abstract: A method for metal leaching comprises contacting a granulated metal- containing material with an aqueous solution of chemical reagents in a pipe reactor, the metal-containing material and the aqueous solution of chemical r...  
WO/2009/129271A1
Disclosed is a process and system for removing metals from waste, particularly electronic waste (or "e- waste"). The process generally includes the steps of dissolving at least some of the metals from the waste and then causing at least ...  
WO/2009/124355A1
A process of leaching a metal value, such as nickel, from a metal laden solid, such as ore. The process includes the steps of contacting the metal laden solid with a leach solution comprising an organic bio-acid to provide a metal value ...  
WO/2009/125341A3
The present invention relates to microorganisms able to reduce mercury ion to metallic mercury; in particular, it refers to systems, apparatuses such as a stirred bioreactor and methods for microbiological mercury removal from contaminat...  
WO/2009/124387A1
Described is a process for decontaminating wood treated with preservative such as chromium copper arsenate (CCA) including contacting the contaminated wood with water and inorganic acid at a concentration between 0.05 and 0.8 N at less t...  
WO/2009/124393A1
An electrochemical process for the recovery of metallic iron or an iron-rich alloy, oxygen and sulfuric acid from iron-rich metal sulfate wastes is described. Broadly, the electrochemical process comprises providing an iron-rich metal su...  
WO/2009/125341A2
The present invention relates to microorganisms able to reduce mercury ion to metallic mercury; in particular, it refers to systems, apparatuses such as a stirred bioreactor and methods for microbiological mercury removal from contaminat...  
WO/2009/120373A3
A process and composition for extracting metal from a metal-laden ore, soil or rock is provided A liquid, three-component aqueous lixiviant comprises water, an alkali metal salt and a low pH acidic composition A four-component aqueous li...  
WO/2009/114925A1
An electrochemical process for the concurrent recovery of iron metal and chlorine gas from an iron-rich metal chloride solution, comprising electrolysing the iron-rich metal chloride solution in an electrolyser comprising a cathodic comp...  
WO/2009/114903A1
A process for the recovery of nickel and/or cobalt from a sulfate solution that also contains iron wherein a substantial proportion of the iron present is in the ferrous state, said process including the steps of: a) oxidising the majori...  
WO/2009/114904A1
An atmospheric leaching process for the recovery of a nickel and cobalt from a lateritic ore, said process including the steps: (a) preparing a slurry of the lateritic ore with saline or hypersaline water having a total dissolved solids ...  
WO/2009/113842A1
An improved process for leaching and recovering precious metals from materials and ores containing same by using ammoniacal thiosulphate solutions of copper with added EDTA, and performing direct selective electroseparation thereof from ...  
WO/2009/109754A1
The application relates to a method for extracting a metal comprising: exposing a metal containing material to (i) liquid solvent or supercritical solvent; in combination with (ii) a perfluorinated phosphine. Perfluorinated phosphines ar...  
WO/2009/109522A1
The present application relates to novel monodisperse, gel-form or macroporous picolylamine resins based on at least one monovinylaromatic compound and at least one polyvinylaromatic compound and/or a (meth)acryloyl compound which contai...  
WO/2009/109520A1
The present application relates to new gel-like or macroporous picolylamine resins based on at least one monovinyl aromatic compound and at least one polyvinyl aromatic compound and/or a (meth)acrylic compound containing tertiary nitrog...  
WO/2009/108993A1
A process for the treatment of solutions or slurries containing dissolved metals comprises the steps of (a) contacting the solution or slurry with an ion exchange resin that selectively removes one or more dissolved metals from the solut...  
WO/2009/110149A1
A process for the recovery of valuable metals from scrap IZO, characterized by conducting electrolysis by using an insoluble electrode as the anode and scrap IZO as the cathode to recover metallic indium and zinc or suboxides of both. Th...  
WO/2009/106734A8
The subject of the present invention is a multi-column sequenced separation process and a device for implementing this process. The invention applies particularly to the separation of metal derivatives such as uranium, nickel, copper, co...  
WO/2009/105832A1
The invention relates to a method for recovering gold from an acid digest of a gold-containing copper anode slime. The acid digest is selectively extracted with an alcohol having low miscibility with water. Gold is then recovered from th...  
WO/2009/106660A1
The invention relates to a method for the recovery of germanium present in aqueous solutions, which is separated form other materials also present in said solutions through the use of ion-exchange resins. The selective extraction is perf...  
WO/2009/106734A1
The subject of the present invention is a multi-column sequenced separation process and a device for implementing this process. The invention applies particularly to the separation of metal derivatives such as uranium, nickel, copper, co...  
WO/2009/103850A4
The invention relates to a method for separating the impurities zinc, iron, calcium, copper and/or manganese from aqueous solutions that contain cobalt and/or nickel. An aqueous solution (1) containing metallic salts is brought into a mi...  
WO/2009/103850A1
The invention relates to a method for separating the impurities zinc, iron, calcium, copper and/or manganese from aqueous solutions that contain cobalt and/or nickel. An aqueous solution (1) containing metallic salts is brought into a mi...  
WO/2009/101864A1
A method of recovering valuable metals from IZO scraps, characterized by using the IZO scraps respectively as an anode and a cathode to conduct electrolysis while periodically reversing the polarity, and recovering the indium and zinc in...  
WO/2009/101863A1
A method of recovering valuable metals from an IZO scrap, characterized by using an insoluble electrode as an anode or cathode and using the IZO scrap as a cathode or anode, which serves as a counter electrode for the insoluble electrode...  
WO/2009/101926A1
Disclosed is a novel rare metal extracting agent. Also disclosed is a method for extracting/separating a rare metal with high efficiency. The rare metal extracting agent comprises a cyclic phenol sulfide derivative represented by general...  
WO/2009/100602A1
A method for extracting Ni and Co from laterite using hydrochloric acid comprises: mining, preparing ore, leaching ore, separating, recovering leach residues, precipitating Ni from leach solution, calcining, and regenerating and recyclin...  
WO/2009/103025A2
Described herein are an apparatus and method for extracting one or more metals from metal sulfide-containing materials. The reactor includes: a containment vessel, the containment vessel having a base member and a wall member; a gas inje...  
WO/2009/103025A3
Described herein are an apparatus and method for extracting one or more metals from metal sulfide-containing materials. The reactor includes: a containment vessel, the containment vessel having a base member and a wall member; a gas inje...  
WO/2009/094732A1
Process for recovering precious metals from catalytic carriers comprising at least the following stages : - Stage 1 : treatment of the carriers with at least one aqueous and/or alcoholic composition - Stage 2 : treatment of the carriers ...  
WO/2009/093730A1
A recovering method is provided, which includes contacting a solid component containing Ru with an aqueous solution to create a Ru compound, and causing the Ru compound to selectively elute in the aqueous solution. The aqueous solution i...  
WO/2009/089613A1
A process for recovering metals such as Ni, Co, Mn, Cu, Zn, among others, through precipitation as sulphides, enabling recovery of magnesium in the form of hydroxide, carbonate and oxide and providing recovery of sulphate as gypsum and a...  
WO/2009/090774A1
A method and an apparatus in which an acidic waste liquid containing copper ions, such as, e.g., an etching waste liquid resulting from the etching of a copper-clad substrate with a cupric chloride etchant or a waste liquid resulting fro...  
WO/2009/089613A9
A process for recovering metals such as Ni, Co, Mn, Cu, Zn, among others, through precipitation as sulphides, enabling recovery of magnesium in the form of hydroxide, carbonate and oxide and providing recovery of sulphate as gypsum and a...  
WO/2009/092023A1
The present invention relates, generally, to a method and apparatus for recovering metal values from a metal-bearing materials, and more specifically, a process for recovering copper and other metals through leaching, electrowinning usin...  
WO/2009/089613A8
A process for recovering metals such as Ni, Co, Mn, Cu, Zn, among others, through precipitation as sulphides, enabling recovery of magnesium in the form of hydroxide, carbonate and oxide and providing recovery of sulphate as gypsum and a...  

Matches 651 - 700 out of 7,262