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Matches 51 - 100 out of 3,861

Document Document Title
WO/2016/168930A1
The present application relates to methods for the simultaneous leaching and extraction of precious metals. For example, the present application relates to methods of leaching and extracting gold and/or palladium from a substance compris...  
WO/2016/164600A1
Methods of recovering metals from metal-bearing materials, and more particularly, methods for improving leaching efficiency in extraction processes by employing a surfactant composition in the extraction process, as well as slurries usef...  
WO/2016/163269A1
[Problem] To provide a metal recovery method and a metal recovery apparatus which allow a metal to be recovered from a solution at low cost with high efficiency. [Solution] A metal recovery apparatus 100 according to the present inventio...  
WO/2016/152141A1
[Problem] To provide an agent for adsorbing ruthenium from an aqueous solution in order to recover/reuse or remove the ruthenium, and a method for purifying seawater contaminated with radioactive elements and/or water or the like in whic...  
WO/2016/146892A1
A method is disclosed for recovering gold from a gold-containing organic solution containing soluble gold. The method comprises contacting the gold- containing organic solution with an aqueous stripping solution in order to extract gold ...  
WO/2016/141405A1
The present disclosure provides a container and a method for preparing a sample for analysis. The container comprises a cavity for receiving a sample including a collector material and a precious metal. The cavity is suitable for melting...  
WO/2016/141438A1
A process for the selective recovery of at least one Chalcophile Group Element ("CPM") as herein defined from a material containing the CPM and one or more non Chalcophile Group Elements ("NCE") as herein defined, said process including:...  
WO/2016/139020A1
Disclosed is a method for synthesizing elemental rhodium, comprising the steps of: (1) providing an aqueous suspension of diethylenetriammonium hexahalorhodate adjusted to a pH between -1 and +2 using hydrohalic acid; (2) adding enough r...  
WO/2016/134420A1
A process is disclosed that enables a precious metal to be recovered from a sulfidic material. The process is particularly suited to treating single- and double-refractory pyritic materials such as pyrites and arsenopyrites. The process ...  
WO/2016/131445A1
The steps provided in a refining method for removing arsenic from arsenic-containing sulphide concentrates, more particularly from arsenic- and noble-metal-containing sulphide concentrates (10) as preparation process step for subsequent ...  
WO/2016/128109A1
An apparatus for separating and recovering the components of an alloy, particularly a noble alloy, including a high vacuum chamber housing at least one crucible for the alloy to be separated; at least one heating element arranged, during...  
WO/2016/109183A1
Embodiments disclosed herein include multilayer films that have at least two layers. More particularly, disclosed in embodiments herein are multilayer films that include at least a first layer and a second layer, wherein the first layer ...  
WO/2016/104113A1
The purpose of the present invention is to make it possible: to, before gold is eluted, effectively remove copper, iron, and sulfur, which are impurities from the standpoint of gold recovery, from activated carbon on which gold has been ...  
WO/2016/104594A1
In the present invention, a method for leaching valuable metals contained in a copper removal slime is characterized in that during oxidative leaching with hydrochloric acid of valuable metals contained in a copper removal slime by addin...  
WO/2016/099338A1
The invention relates to the field of hydrometallurgy. The use thereof for recovering precious metals from electronic circuit boards of modern microelectronics, for example, from computer printed circuit boards, allows to increase the...  
WO/2016/080656A1
The present invention relates to a method for producing polyketone, the method comprising: a gas-phase polymerization method which can increase output of polyketone; a solid-phase catalyst for polyketone polymerization which does not use...  
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/2016/048750A1
A method of recovering gold from refractory ore containing a carbonaceous material, a sulfide and gold is provided. Gypsum seed crystals are added to a slurry containing a roasted refractory ore or a pressure-oxidized refractory ore to d...  
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 µm 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...  

Matches 51 - 100 out of 3,861