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Matches 351 - 400 out of 4,037

Document Document Title
WO/2012/078020
A method for leaching valuable metals from ore or one or more minerals that do not oxidise easily and can be reduced, comprises reducing the ore or one or more minerals in contact with an acid medium with complexing agents for sulphur an...  
WO/2012/075521
An improved micronutrient fertiliser comprising leach tailings from a sulphur dioxide leach process for the recovery of manganese or manganese sulphate products and a method for the production of such an improved micronutrient fertiliser...  
WO/2012/078019
The present invention pertains to the mining industry and to the processing of minerals and materials containing gold and silver. More specifically, it relates to a method for recovering gold and silver from copper thiosulphate solutions...  
WO/2012/071640
The present invention relates to a novel method for producing high-purity metallurgical-grade silicon metal by leaching silicon metal and then purifying same in subsequent steps. Said method, which is the subject matter of the present pa...  
WO/2012/068639
A method of extracting an alkali metal and/or an alkaline earth metal from a mineral including an alkali metal and/or an alkaline earth metal, or a rock containing the mineral, the method including contacting the mineral, with an aqueous...  
WO/2012/068621
A process for recovering zinc from a zinc containing material, the process including the steps of: leaching the zinc containing material with an alkaline lixiviant which includes an ammonium species, a hydroxide species and a halide spec...  
WO/2012/068620
A process for recovering zinc from a zinc containing material, the process including the steps of: leaching the zinc containing material with an alkaline lixiviant comprising an aqueous mixture of NH3 and NH4CI, or ionic equivalent, havi...  
WO/2012/069573
The present invention relates to a process that makes it possible to separate the americium present in an acidic aqueous phase or in an organic phase from other metallic elements that are also found in this phase, by complexing the ameri...  
WO/2012/070769
Disclosed is a method for adsorbing/desorbing lithium ions, which can attain an adsorption rate of 65±5% and a desorption rate of 95±3% by performing an absorption process and a desorption process using a CCD process. According to the ...  
WO/2012/069625
The present invention relates to a process for selectively removing molybdenum from a solution which contains molybdenum, said process comprising the following steps: ■ bringing the solution to an acid pH lower than or equal to 3, pref...  
WO/2012/069703
A pump (1) for mixing two or more mutually insoluble liquid phases together into a dispersion and for feeding the dispersion into a mixer (2) and on into a solvent extraction settler (3). The inner space of the blade wheel housing (12) i...  
WO/2012/068668
There is provided a hydrometallurgical process of recovering indium and gallium values from mixtures thereof with other metal values for example recycled and scrap solar panel cells which comprises subjecting the mixture to strongly oxid...  
WO/2012/070193
The purpose of the present invention is to provide a valuable metal collection method for collecting a metal from a lithium ion battery using a relatively simple facility without employing any complicated process. In the present inventio...  
WO/2012/065361
Provided are a method and a supporting device for separating lithium from magnesium and enriching lithium in salt lake brine. The method comprises the following steps: separating an electrodialysis device into a lithium salt chamber (5) ...  
WO/2012/065361
Provided are a method and a supporting device for separating lithium from magnesium and enriching lithium in salt lake brine. The method comprises the following steps: separating an electrodialysis device into a lithium salt chamber (5) ...  
WO/2012/065406
A method for balancing iron by producing iron vitriol in bio-metallurgy process involves adjusting and optimizing the parameters, such as temperature in the heap,pH in the leaching liquid and the concentration of iron, during the heap bi...  
WO/2012/065253
There is provided a method for extracting aluminum ions from aluminous ores, such as argillite. The process comprises leaching the argillite with an acid such as HCI so as to obtain a composition comprising the aluminum ions and iron ion...  
WO/2012/065222
A method (10) for the leaching of a metal sulfide, the method characterised by the steps of: combining a metal sulfide (12) with water to form a slurry (13); directing the slurry (13) to an autoclave (14) for acid leaching at elevated te...  
WO/2012/060417
Provided are: a capsule for non-ferrous metal collection that can collect a non-ferrous metal; and a method for collecting a non-ferrous metal using same. The capsule for non-ferrous metal collection comprises capsule contents and a cove...  
WO/2012/055167
Disclosed is a bacterial liquid of microbial combinations for biometallurgical leaching of copper ore and a method for recovering metallic copper therefrom. A microbial leaching combination, after undergoing adaptive culture, continuous ...  
WO/2012/051652
A method for selectively removing arsenic from a solid sulphide material containing arsenic comprises the steps of conducting a leaching step by contacting the solid material with a leaching solution that leaches arsenic from the materia...  
WO/2012/053614
A copper concentrate treatment method characterized by comprising: a roasting step of roasting an enargite (Cu3AsS4) or a copper concentrate mainly composed of an enargite at 550-700°C in an inert gas atmosphere; and a leaching step of ...  
WO/2012/050317
Valuable metals such as cobalt, nickel, manganese, and lithium can be economically recovered from various lithium secondary battery-related wastes by the inventive method which comprises liquid-phase leaching a scrap powder containing Co...  
WO/2012/050317
Valuable metals such as cobalt, nickel, manganese, and lithium can be economically recovered from various lithium secondary battery-related wastes by the inventive method which comprises liquid-phase leaching a scrap powder containing Co...  
WO/2012/049361
The invention relates to a method for treating a solution containing zinc sulphate, so that at least one of the rare metals such as indium, gallium and germanium can be separated from it. A portion of the metals to be separated can be pr...  
WO/2012/047711
The present invention relates to a method and article for manipulating an amount of organic material entrained in an aqueous phase of a solvent extraction process. The method includes estimating an interfacial shear stress between an aqu...  
WO/2012/044858
A process for treating waste includes reacting a feedstock in a reactor to form an effluent. The feedstock is part of a reaction mixture that includes sulfuric and nitric acid. The effluent is separated into a liquid fraction and a solid...  
WO/2012/042714
To provided a method for recovering lithium from a lithium ion battery using comparatively simple equipment and without using a cumbersome process. A lithium extraction method for extracting lithium from the positive electrode material o...  
WO/2012/040868
The invention relates to an electronic inductive heating system for bioleaching and electrowinning plants at high altitude for heating fluids, said system comprising a DC/DC converter that controls the power entering an autoresonant inve...  
WO/2012/040829
Zinc and lead are usually concomitantly present in Zn-Pb ores and tailings. A novel non-polluting hydrometallurgical process for selectively leaching and recovering zinc (Zn) from a composite lead (Pb) and zinc sulphide containing minera...  
WO/2012/035207
The invention relates to a mixing device and method by means of which two solutions that are insoluble or poorly soluble in each other are mixed together into a dispersion. The device consists of at least three helical bars rotating upwa...  
WO/2012/034202
The present invention refers to a method to remove organic chemicals and organometallic complexes (organic heavy metal complexes) using zeolite from process water or tailings streams of a mineral processing plant where diethylenetriamine...  
WO/2012/031317
A heap of a material to be leached to recover a valuable metal from the material and a method of constructing the heap are disclosed. The heap comprises sides and a top and a system to control air flow into the heap. The air flow control...  
WO/2012/033077
[Problem] To decompose hydrogen peroxide in a copper etching waste liquor that contains hydrogen peroxide at a high concentration, with high efficiency. [Solution] A method of treating a copper etching waste liquor containing hydrogen pe...  
WO/2012/024744
A method for leaching copper and molybdenum from an ore, residue and/or concentrate containing such, in which more than 1% of the total molybdenum is present as a sulfide and in which more than 1% of the total copper is present as an oxi...  
WO/2012/024744
A method for leaching copper and molybdenum from an ore, residue and/or concentrate containing such, in which more than 1% of the total molybdenum is present as a sulfide and in which more than 1% of the total copper is present as an oxi...  
WO/2012/026061
A valuable-metal recovery method for recovering metals from lithium-ion batteries without using cumbersome steps and using comparatively simple equipment. A positive-electrode material containing a lithium/transition-metal composite oxid...  
WO/2012/019265
A method for treating liquid effluents and recovering metals is described, which comprises the steps of: a) liquid effluent equalization; b) sulphide addition and precipitation of metals in the form of metal sulphides; c) solid/liquid se...  
WO/2012/019383
Disclosed is a method for recycling lead from waste glass containing lead, which comprises the following steps: mechanical crushing waste glass containing lead, ball milling and screening to obtain glass powder containing lead; alkaline ...  
WO/2012/016511
A process for in-situ leaching of ion-adsorption rare earth by liquid injection comprises setting up a liquid injection network having liquid injection shallow wells and liquid injection deep wells distributed at intervals; during the li...  
WO/2012/016513
An in situ leaching liquid collection process with secondary channels comprises:1) multiple liquid collection channels are provided in an ore body; 2) secondary channels are provided at both sides of the liquid collection channels, the m...  
WO/2012/014685
Provided are: a process for producing ferronickel from a nickel sulfide material produced by a wet refining of a lateritic nickel ore or a scrap or a work-in-process material or from a mixed sulfide material containing nickel and cobalt....  
WO/2012/006935
Provided is a method for producing mercury-free alkaline-manganese type electrolyzed manganese dioxide, which sequentially comprises: (1) mixing manganese oxide ore and pyrite, continuously feeding the mixture and sulfuric acid into a co...  
WO/2012/005545
The present invention relates to a method of extracting lithium from a lithium bearing solution. More specifically, the present invention provides a method of economical extraction of lithium from a lithium bearing solution by adding a p...  
WO/2012/005545
The present invention relates to a method of extracting lithium from a lithium bearing solution. More specifically, the present invention provides a method of economical extraction of lithium from a lithium bearing solution by adding a p...  
WO/2012/005548
The present invention relates to a method of economical extraction of magnesium, boron and calcium, while minimizing the loss of lithium, from a lithium bearing solution. More specifically, the present invention provides a method for eco...  
WO/2012/005545
The present invention relates to a method of extracting lithium from a lithium bearing solution. More specifically, the present invention provides a method of economical extraction of lithium from a lithium bearing solution by adding a p...  
WO/2012/005548
The present invention relates to a method of economical extraction of magnesium, boron and calcium, while minimizing the loss of lithium, from a lithium bearing solution. More specifically, the present invention provides a method for eco...  
WO/2012/005182
A rare earth metal extractant containing, as the extractant component, dialkyldiglycol amide acid which is excellent in breaking down light rare earth elements is reacted in diglycolic acid (Xmol) and an esterification agent (Ymol) at a ...  
WO/2012/005183
A rare earth metal extractant containing, as the extractant component, dialkyldiglycol amide acid which is excellent in breaking down light rare earth elements is reacted in diglycolic acid (Xmol) and an esterification agent (Ymol) at a ...  

Matches 351 - 400 out of 4,037