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Matches 101 - 150 out of 8,152

Document Document Title
WO/2015/193828A1
A process for the beneficiation of Manganese ore which includes the step of leaching of the ore with acid to remove Calcium Carbonate and Magnesium Carbonate. The ore is first broken down to the required particle size by conventional mea...  
WO/2015/196220A3
A method of recovering a metal from a low-grade ore which is subjected to cyanide leaching to produce a PLS which contains a metal cyanide which is removed from the PLS by ultrafiltration and nano-filtration, and then acidified and sulph...  
WO/2015/193314A1
The invention relates to a method for extracting tantalum and/or niobium from an acidic aqueous phase. Said method includes at least one step that includes putting the aqueous phase A1 in contact with an organic phase, then separating th...  
WO/2015/195393A1
The present disclosure relates generally to systems and methods for purifying and recycling the lead content from lead-acid batteries. A system (40) includes a reactor (56) that receives and mixes a lead-bearing material (54), a carboxyl...  
WO/2015/195398A1
The present disclosure relates to systems and methods by which lead from spent lead-acid batteries may be extracted, purified, and used in the production of new lead-acid batteries. Such a system may include a first phase separation devi...  
WO/2015/192234A1
Hydrometallurgical techniques for the selective recovery of Zn, Mn and Pb in that order from sludges or various metallurgical residues can include leaching steps to extract the zinc and manganese; the steps of removing iron, aluminum and...  
WO/2015/195396A1
The present disclosure relates to methods by which lead, such as lead from spent lead-acid batteries, may be recycled and potentially used in the construction of new lead-acid batteries. Such a method may include: (A) forming a mixture i...  
WO/2015/195454A1
The present disclosure relates generally to recycling lead-acid batteries, and more specifically, relates to purifying and recycling the lead content from lead-acid batteries. A lead recovery system (40) may include a first reactor (58) ...  
WO/2015/194980A2
The invention relates to a method of hydrometallurgical separation of iron and its compounds from non-ferrous metals and their compounds in which the sludge is leached in an alkalised solution while being exposed to an alternating or dir...  
WO/2015/194980A3
The invention relates to a method of hydrometallurgical separation of iron and its compounds from non-ferrous metals and their compounds in which the sludge is leached in an alkalised solution while being exposed to an alternating or dir...  
WO/2015/195397A1
The present disclosure relates to systems and methods by which lead from spent lead-acid batteries may be extracted, purified, and used in the construction of new lead-acid batteries. A method (10) comprises the step of: (14) forming a f...  
WO/2015/189474A1
A method for controlling gas circulation in a mineral flotation process in a system comprising one or more flotation cell unit(s) with an apparatus comprising a gas recirculation loop, a flushing system comprising an expulsion line (81) ...  
WO/2015/189473A1
The present invention provides a method for controlling gas circulation in mineral flotation with an apparatus comprising a gas recirculation loop, at least one flushing flotation cell unit and one or more sealed flotation cell units, co...  
WO/2015/192000A1
A vertical drainage system for a heap leaching operation comprising vertical drainage conduits for draining fluid pockets down through the strata of a heap pile. The drainage conduits are spaced in. a parallel array throughout the ore he...  
WO/2015/185729A1
The invention relates to a method for the lagoon-based bioleaching of a metallic ore (1), wherein the temperature of the suspension containing the metallic ore to be bioleached, a bioleaching consortium and a nutritive substrate (3) of t...  
WO/2015/185803A1
The present invention provides a method of extracting gold from pregnant leach solution (PLS) obtained from leaching of gold, comprising the steps of: (a) extracting the PLS with an organic extractant comprising an organic diester and an...  
WO/2015/185804A1
The present invention according provides a method of recovering silver from silver containing halide solutions, comprising the steps of:(a) providing an ion exchange column comprising a weak anion exchange resin; (b) introducing the silv...  
WO/2015/179973A1
It is described a process for extracting aluminum from aluminum-bearing materials comprising the steps of leaching the aluminum-bearing material with HCl to obtain aluminum chloride; separating and purifying the aluminum chloride; provid...  
WO/2015/179900A1
In accordance with the present invention there is provided a method for leaching copper from a oxidised copper ore, wherein at least 5% of the copper present in the oxidised copper ore is an oxidised copper compound, the method comprisin...  
WO/2015/180224A1
A process for efficiently enriching and recovering the precious metals platinum and palladium based on a solvent extraction method, wherein isoamylol is used as an extraction agent and 2-methoxyphenyl thiourea is used as an extracting an...  
WO/2015/181446A1
The present invention provides a method of separating precious metals from anode sludge obtained from copper electrolysis, comprising (a) leaching the anode sludge in an aqueous sulfuric acid solution to remove leachable chlorides and to...  
WO/2015/181038A1
The invention relates to a method for processing metallized packaging materials, in particular beverage cartons or blister packs. According to the invention, acid is used to dissolve the aluminum and separate same from the plastic materi...  
WO/2015/176166A1
There are provided processes for decomposing AlCl3•6H2O into γ-Al2O3 that comprise heating the AlCl3•6H2O at a temperature of about 600°C to about 800°C in the presence of steam and optionally at least one gas (for example chosen ...  
WO/2015/177225A1
The invention relates to a method and to a technical process for treating solids and liquids with the objective to clean the same, and to recover valuable materials such as metals, for example, therefrom. Potential starting materials are...  
WO/2015/178752A1
The invention relates to a hydrometallurgical process for the treatment of polymetallic minerals and sulphur concentrates of copper and zinc, and by-products from lead smelting plants and zinc plants, treated independently and/or as mixt...  
WO/2015/174103A1
Provided are: a sulphuric acid acidic solution neutralisation method by which the pH of a neutralised solution can be stabilised; and a nickel oxide ore hydrometallurgical method. The present invention comprises: a sulphuric acid leachin...  
WO/2015/172241A1
A process for the extraction of copper from a feed material comprising at least one of arsenic and antimony-bearing copper sulphide minerals is provided. The process includes fine-grinding the feed material and after fine-grinding, subje...  
WO/2015/172175A1
A method for extracting gold from an acidic solution that includes a gold containing anion and a counter-cation including: contacting the acidic solution with a polymer inclusion membrane to remove the gold containing anion and the count...  
WO/2015/175251A1
A process is provided in which a silver- and base metal-containing material is contacted with an aqueous solution comprising an alkali and/or alkaline earth metal halide and an oxidant at a solution pH of at least about pH 6 to dissolve ...  
WO/2015/171010A1
The invention relates to a process for the extraction of gold and silver from ores and mining by-products. The process according to invention consists in treating ores and mining residues having a content of 0.5... 12 ppm Au with a solut...  
WO/2015/163132A1
[Problem] To provide: a metal collection method and a metal collection system, whereby it becomes possible to collect a metal from a liquid metal waste with high efficiency and at low cost; and a solution regeneration method and a soluti...  
WO/2015/161659A1
A method for simultaneously preparing high-purity vanadium and a heteropolyacid catalyst. A heteropolyacid in a vanadium-containing solution is extracted using magnetic nanoparticles grafted with an extracting agent. Utilising the magnet...  
WO/2015/161660A1
A method for recycling and preparing low-silicon high-purity vanadium pentoxide (V2O5) from a mixed solution containing vanadium, chromium and silicon. The method comprises the following steps: firstly, silicon is removed from a solution...  
WO/2015/162902A1
The purpose of the present invention is to enable high-purity manganese extremely reduced in contamination by zinc, carbon, etc. to be easily obtained at low cost by: selecting out manganese dry batteries and/or alkaline manganese dry ba...  
WO/2015/159810A1
The present invention relates to: a method for treating a copper-containing acidic liquid waste, whereby it becomes possible to remove and collect copper in the form of copper oxide from the copper-containing acidic liquid waste; and an ...  
WO/2015/157874A1
The invention relates to a method and system for detecting saturated areas or non-irrigated areas in leach heaps, in order to assist with the management and control of irrigation in leach heaps, including: a) positioning a highly stable ...  
WO/2015/159564A1
Provided is a wet-mode nickel oxide ore smelting method, whereby it becomes possible to effectively select ore particles having a high Ni/Mg ratio. The method comprises a pretreatment step (1) of sieving a nickel oxide ore to produce an ...  
WO/2015/159685A1
The purpose of the present invention is to provide a wet-mode nickel oxide ore smelting method for collecting nickel and cobalt employing a high pressure acid leach process, whereby it becomes possible to simplify a production facility a...  
WO/2015/155386A1
The invention relates to a method for producing a renewable source of metals, in particular rare earths and yttrium, from acid mine water, based on: neutralising the metal-rich acid solution to a pH value of 4, by adding an adequate quan...  
WO/2015/155684A3
Process for obtaining lithium compounds and intermediate compounds, comprising the following steps: a) contacting aluminosilicate particles, for example α- spodumene, with at least one fluorine compound, for example HF, Na F or others; ...  
WO/2015/149111A1
A hydrometallurgical process for the removal of arsenic and antimony from a so-called "dirty" copper concentrate (101) is described. The process comprises the following steps: Step 1: repulping (100) the "dirty" copper concentrate with a...  
WO/2015/150774A1
The present invention relates to selective removal of mercury from aqueous feeds also comprising precious metals. In particular, the present invention is useful for removal of mercury from processing waters produced during precious metal...  
WO/2015/146329A1
Provided is a copper removal method for an aqueous nickel chloride solution, the method able to prevent a reduction in organic solvent extraction capability and oil/water separation performance and further, when compared to prior art, th...  
WO/2015/148131A1
Disclosed herein are methods and systems for recovering precious metals from industrial waste materials. A volume of waste material is placed in a reaction vessel, in which the volume contains a metallic species in ionic form at an initi...  
WO/2015/147330A1
To provide a method for pre-treating gold ore in order to recover gold from gold ore containing pyrite by means of hydrometallurgy, wherein the generation of sulfur dioxide is suppressed and the rate of recovery of the gold can also be i...  
WO/2015/148503A1
Methods of synthesizing a DOPA-melanin (DM) polymer are disclosed, as well as compositions comprising the DM polymer and uses thereof. The method comprises contacting a reactant such as 3,4-dihydroxyphenylalanine (DOPA) with a high conce...  
WO/2015/143574A1
The invention relates to a method for recovering copper, Mo, Fe, Pt, Au, Ag, Zn, Ni, Sn, Co, U, Re, Ge, Se, rare earth metals and any other metal from the Periodic Table of the Elements present in the slag content, obtained from the slag...  
WO/2015/135017A1
A method for the recovery of uranium from a Pregnant Strip Solution (PSS) (201) emanating from an upstream uranium recovery process is described. The method comprises the steps of: extracting the uranium values quantitatively from the PS...  
WO/2015/137451A1
[Problem] To provide a polymer which enables the solid phase extraction of a metal ion, particularly a rare earth element, and from which a metal of interest can be collected by burning the polymer after the adsorption of the metal of in...  
WO/2015/137823A1
A process for alumina and carbonate production from aluminium rich materials with integrated CO2 utilization, comprising: comminuting and leaching Al-rich materials in concentrated HCI; separating unreacted material from metal chloride s...  

Matches 101 - 150 out of 8,152