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Matches 101 - 150 out of 3,958

Document Document Title
WO/2016/038974A1
The present invention addresses the problem of providing a molten ingot of a platinum group metal or a platinum group-based alloy each having a high material yield by preventing the occurrence of a scattering phenomenon upon heating/melt...  
WO/2016/037426A1
A method for recovering rare/inert metals from a bottom electroplating copper/nickel material. The method comprises the following steps: (1) pretreatment; (2) preparation of a rare/inert metal removal solution: adding an additive No.1 th...  
WO/2016/036247A1
The invention is directed to a process and apparatus for metal refining, in particular for refining a mixture of conductive particles, such as heavy non- ferrous particles. In accordance with the invention a feed containing a mixture of ...  
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/2016/004431A3
A solution for leaching precious metals from clay containing ore and a method of leaching ore is described. The solution comprises a cyanide, a wetting agent, and a clay stabilizing polymer. In a first embodiment a solution for leaching ...  
WO/2015/193901A1
A method for recovery of platinum group metals from a spent catalyst is described. The method includes crushing the spent catalyst to obtain a catalyst particulate material including particles having a predetermined grain size. The metho...  
WO/2015/193656A1
The present invention relates to processes for separating metals, and in particular for separating precious metals such as platinum and palladium, by solvent extraction. The present invention also provides novel solvent extraction mixtur...  
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/2015/185803A1
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/2015/180224A1
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/2015/178752A1
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/2015/172175A1
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/2015/163132A1
[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/2015/150074A1
Process for extracting gold from rock materials that contain it, comprising the steps of: - feeding a continuous flow of previously finely divided rock material into a turbo-reactor comprising a cylindrical tubular body (1) with horizont...  
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/2015/146307A1
A method for removing a metal contained in an organic-solvent solution thereof, the method comprising dissolving a polymer in the metal-containing organic-solvent solution to form a composite of the metal with the polymer and separating ...  
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/2015/141550A1
The present invention pertains to technology for the recovery and regeneration of platinum paste. The present invention is a method for recovering a metal powder from a platinum paste obtained by mixing: a solid component comprising meta...  
WO/2015/140663A1
A process for the extraction of noble metals from the Mangalwedha basalt is disclosed in the present disclosure wherein a sample collected from the Mangalwedha basalt is subject to a series of metallurgical process to extract noble metal...  
WO/2015/135053A1
A method for extracting precious metals from a polymetallic ore, comprising a) generating hypochlorites from a salt brine; b) chlorination of the ore using hypochlorites under acidic conditions; c) filtering to collect a pregnant solutio...  
WO/2015/130965A1
Gold and silver are recovered selectively such that gold and silver are separated from non-silver and non-gold material within the scrap. Gold and silver are recovered from scrap material using mixtures of acids, in some instances. The m...  
WO/2015/130965A8
Gold and silver are recovered selectively such that gold and silver are separated from non-silver and non-gold material within the scrap. Gold and silver are recovered from scrap material using mixtures of acids, in some instances. The m...  
WO2015122469A1
The present invention provides a homogenization method for a Cu alloy comprising Ru, said homogenization method being characterized by comprising a step in which at least one substance selected from the group consisting of Fe, Ni, FeSi, ...  
WO/2015/103888A1
A method for recycling and processing waste containing a silver component comprises: a step of preparing an acid liquid and performing a first reaction between waste containing a silver component and the acid liquid, so as to produce an ...  
WO/2015/102865A1
New and useful processes are provided for leaching precious metal from sources composed of or containing such metals. The leaching agents used are aqueous solutions of solvated alkali metal, alkaline earth metal, ammonium, and/or N-halos...  
WO/2015/099189A1
[Problem] To provide a means of using a yeast to recover noble metal ions in reduced form, i.e., as noble metals. [Solution] In a liquid to which an electron donor has preferably been added, Saccharomyces cerevisiae, Zygosaccharomyces ro...  
WO/2015/098232A1
Provided is a method for processing electrical/electronic component scraps, the method being capable of limiting the occurrence of over-reduction in smelting furnaces and of efficiently processing as much electrical/electronic component ...  
WO/2015/083233A1
[Problem] To collect palladium from a palladium-containing liquid waste containing an inorganic sulfur oxide such as sodium sulfite at a high collection rate and with high efficiency without requiring the employment of a complicated proc...  
WO/2015/072338A1
In the present invention, for useful objects that are electronic devices or electronic device components containing specified reusable substances, a useful object library is prepared that has a data structure associating, for each useful...  
WO/2015/058257A1
ABSTRACT A method for treating a mineral composition containing iron, arsenic or other Group VA compounds comprises milling the mineral composition to a particle size of P80 of less than 25 ┬Ám and leaching the mineral composition in the...  
WO/2015/060367A1
A separating agent which can selectively separate and recover platinum group metal ions from a solution containing multiple kinds of metal ions, and a separation method of platinum group metal ions are provided. This platinum group metal...  
WO/2015/056159A1
Liquid treatment apparatus comprises at least two chambers being first and second chambers through which a fluid can flow. The two chambers are separated by at least one choke nozzle which has an entrance in the first chamber and an exit...  
WO/2015/049959A1
The present invention provides a method for efficiently producing composite noble metal nanoparticles by means of a process that is low-energy, has a low environmental impact, and is simple. The method for producing composite noble metal...  
WO/2015/031943A1
A process for recovery of metal comprising copper and/or a precious metal from a metal containing material, including the steps of: leaching the metal containing material with an alkaline lixiviant and an amino acid or derivative thereof...  
WO/2015/030243A1
This invention pertains to the following: a recovery composition that contains ruthenium, iridium, and iron, with the ruthenium content and the iridium content satisfying relation (1); and a method in which said composition is used to re...  
WO/2015/026061A1
Disclosed is an integrated electrolysis leaching device for leaching a refractory rare metal. The integrated electrolysis leaching device for leaching a refractory rare metal is characterized by comprising: a reactor containing an electr...  
WO/2015/016102A1
Provided are an adsorption filter that can absorb and recover metal ions and the like efficiently and a method for manufacturing the same. The adsorption filter is constituted of graft copolymer particles into which an adsorption group h...  
WO/2015/016103A1
Provided are: an adsorbent material able to efficiently adsorb an adsorption subject such as a metal ion; and a method for producing such an adsorbent material. The adsorbent material is such that an ethylene-vinyl alcohol copolymer is t...  
WO/2015/016732A1
The invention relates to non-ferrous metallurgy and to the metallurgy of precious metals, in particular, to the separation technology for gold-silver alloys and mixtures using the vacuum distillation method, for producing high purity met...  
WO/2015/013147A1
The invention provides methods, compositions, and apparatuses for preventing the formation of scale in heap leach process solution distribution systems comprised of piping, spray nozzels, or emitter tubes. Solution distribution system co...  
WO/2015/010754A1
The process serves for utilization of metal-containing waste materials. To develop a process which permits the controlled reaction of metals with water to produce hydrogen in such a way that the hydrogen can be utilized in a simple and s...  
WO/2015/010793A3
The invention relates to a method for recycling membrane/electrode units (MEA) of a fuel cell, comprising proton-exchange membrane material (PEM) and gas-diffusion layers (GDL), said PEM containing a perfluorsulfonic acid polymer (PFSA) ...  
WO/2015/008168A3
The present application offers a solution to the current problems associated with recovery and recycling of precious metals such as gold and copper from scrap material, discarded articles, and other items. The solution is premised on a m...  
WO/2015/006861A1
The value-minerals are captured by gravity-separation, from a low-grade slurry. The ratio of liquids-to-solids in the slurry affects the efficiency of capture, and an ideal liquids/solids ratio is the ratio at which the efficiency of cap...  
WO/2015/006850A1
A method for recovering precious metal from an acidic pregnant solution resulting from halogen or hypohalite leaching of an ore, comprising lowering the ORP of the pregnant leachate with a reducing agent in the presence of slurried non-c...  
WO/2014/203895A1
Provided is a method for efficiently recovering various types of metal, including rare metals, noble metals and other metals, from waste electronic substrates. This method of recovering metal from waste electronic substrates involves: a ...  
WO/2014/191833A1
The disclosure relates to the oxidation and immobilization of trivalent arsenic from arsenic-containing solutions. The process includes oxidation of trivalent arsenic (As3+) species to the pentavalent state (As5+). A carbon additive (e.g...  
WO/2014/191832A1
The disclosure relates to pre-treatment of precious metal-bearing oxide ores, prior to precious metal leaching by thiosulfate. The process comprises mixing oxide ore in oxygenated water in the presence of a carbon-based material (e.g., a...  
WO/2014/190434A1
A method for purification and separation of mixed elements, comprising at least a first free flow electrophoresis separation chamber, wherein a solution of the mixed elements is passed through the first separation chamber, an electric fi...  
WO/2014/193751A1
An apparatus and/or system and method for recycling vent gas from an autoclave (103) is disclosed including cooling and cleaning a vent gas, introducing the cooled and cleaned resultant stream into a purification unit (109) to remove at ...  

Matches 101 - 150 out of 3,958