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Matches 1 - 50 out of 3,973

Document Document Title
WO/2019/165560A1
A method of selectively oxidizing one or more target metals in an alloy comprising target and non-target metals is provided. The method comprises the steps of: i) melting the alloy and exposing the molten alloy to simultaneous fragmentat...  
WO/2019/155397A1
The present invention provides systems and methods for treating liquids including contaminant molecules dispersed therein by combining physical treatment, biological treatment and/or chemical treatment.  
WO/2019/151351A1
Provided is a processing method for electronic/electric device component waste by which it is possible to increase the amount of electronic/electric device component waste that can be processed in a smelting step, and by which valuable m...  
WO/2019/150198A1
Materials and methods for precious metal recovery are disclosed. An aqueous-based leaching solution is disclosed comprising an iodide salt material; an iodate salt material, a chlorite salt material, or any combination thereof; and phosp...  
WO/2019/145058A1
A process for the recovery of precious metal (PM) from PM oil, the process including combustion of PM oil within a furnace, where the PM oil is burned in atomized form.  
WO/2019/138307A1
The present disclosure relates to a process for the extraction of palladium from basalt. The process of the present disclosure is simple, economical and environment friendly.  
WO/2019/131946A1
The present invention provides a method for recovering gold and a gold recovery facility, which are capable of efficiently recovering gold from a solution that contains a gold cyano complex even in cases where the concentration of the go...  
WO/2019/128863A1
A method for circulated chloridized enrichment of noble metals from circuit board molten pool smelted flue dust. The smelted flue dust is subjected to acid extraction, and calcined two times to obtain calcined sands and flue gas, the cal...  
WO/2019/120368A1
The invention relates to a process, a unit and a gold and/or silver extraction unit for improving the yield in a sorption-leaching process (10) for extracting precious metals, in which the efficiency of the process is limited in particul...  
WO/2019/113059A1
Systems and methods for the recovery of silver are generally described. Certain embodiments are related to innovations newly developed within the context of the present invention that exploit the ability of elemental silver (i.e., silver...  
WO/2019/087193A1
A method for recovery of gold from gold-containing materials, such as electronic waste material, minerals and sands is described. The method includes crushing the gold containing material to obtain a particulate material. The particulate...  
WO/2019/078735A1
The invention relates to a method for recovering precious metals from electronic waste. In particular, biometallurgical techniques are utilised during the process. In a first aspect, the invention provides a method of recovering one or m...  
WO/2019/071797A1
A method for producing mixed slag containing nickel and iron, comprising the following steps: S1. furnace slag mixing: adding nickel smelting slag into a reaction apparatus, and adding one or more of lead smelting slag, blast furnace sla...  
WO/2019/071795A1
A manufacturing method using a copper-containing slag, comprising the following steps: S1, slag mixing: putting a copper slag into a reaction device and adding calcium-based minerals and additives, heating the slag into a molten state an...  
WO/2019/071788A1
A manufacturing method using a copper and iron containing mixing slag. The manufacturing method comprises the following steps: S1, slag mixing: putting a copper slag into a smelting reaction device, adding one or more of a lead smelting ...  
WO/2019/071787A1
A method for recovering valuable components from smelting slag containing nickel, comprising: adding nickel smelting slag into a reaction device, adding a calcium-series mineral and an additive, forming mixed slag, heating the mixed slag...  
WO/2019/071793A1
A method for recovering a valuable component from slag containing copper, comprising: S1. mixing furnace slag: adding copper slag into a smelting reaction device, adding a calcium-series mineral and an additive, forming mixed slag, heati...  
WO/2019/071790A1
A method for recovering valuable components from mixed slag containing zinc and iron, comprising the following steps: S1, adding zinc smelting slag into a heat preservation device or into a smelting reaction device from which slag may fl...  
WO/2019/071792A1
A production method based on smelting reduction of slag containing zinc and iron. The method comprises the following steps: S1, adding zinc smelter slag into a thermal insulation apparatus or a smelting reaction apparatus allowing slag t...  
WO/2019/071789A1
A method for recovering valuable components from zinc smelting slag. The method comprises the following steps: S1, adding zinc smelting slag to a heat insulating device or a smelting reaction device from which slag may flow out, and addi...  
WO/2019/064709A1
Provided is a gold leaching method for leaching gold included in raw material that includes sulfide minerals or gold and sulfur as a refining intermediate obtained by refining treatment of sulfide minerals, wherein the gold leaching meth...  
WO/2019/060961A1
A process for recovery of one or more elements, selected from precious metals and chalcophile metals as herein defined, from materials containing precious and/or chalcophile metal/s, said process including: (i) a leaching step comprising...  
WO/2019/056837A1
A clean extraction method for metal silver, comprising: leaching a mixture of an acid solution containing Ce 4+ and NO 3 - and a silver containing material, and after the leaching is completed, carrying out solid-liquid separation to obt...  
WO/2019/016610A3
A method for generating an aqueous-based leaching solution for precious metal is disclosed, comprising: combining iodide salt material, carboxylic acid material, and water in an agitated tank, thereby producing a first mixture; passing t...  
WO/2019/033154A1
A process for recovery of one or more elements, selected from precious metals and chalcophile metals, as herein defined, from materials containing precious and/or chalcophile metal/s, said process including: (i) contacting the material w...  
WO/2019/035446A1
Provided is a metal which is one of tin, silver, copper, zinc, or indium, and has low α-ray emission, wherein the α-ray emission of the metal after being heated in air at 100°C for 6 hours is 0.002 cph/cm2 or less. A metal selected fr...  
WO/2019/023735A1
Contemplated is a sensor system for use with a measuring device. The measuring device being of the type adapted to measure the volume of a desired solid component in a sample volume of a solid-liquid slurry obtained from either a carbon-...  
WO/2019/016798A1
The present invention provides process and apparatus for producing a thin layer of high purity gold on an object made of gold alloy, such as a jewelry item. The process comprises heating a gold alloy having an outer surface to a temperat...  
WO/2018/084723A3
The invention relates to a process for recovering metals from aqueous solutions or solid feedstocks such as ores and waste. In particular, the invention relates to a method of recovering a target metal using a microorganism and recycling...  
WO/2019/006568A1
The present invention relates to a method for extracting base and precious metals, all contained in refractory minerals, using aqueous media. The aim is to replace the current "flotation/smelting"· method for extracting minerals in Chil...  
WO/2018/223190A1
A process for leaching a mineral particulate material comprising the steps of feeding the mineral particulate material to a leaching step (10) in which at least one valuable metal in the mineral particulate material is leached into a lea...  
WO/2018/225738A1
This palladium extraction agent, which comprises an alkyl-sulfide-group-comprising disubstituted aromatic compound represented by general formula (I) as an active ingredient, can be used to selectively extract only palladium from a solut...  
WO/2018/187855A1
Process for recovering one or both of copper and silver from a sulphidic feed containing iron, arsenic, copper and silver by pressure oxidizing an aqueous feed slurry of the sulphidic feed in a pressure vessel to form a liquid phase cont...  
WO/2018/162043A1
The invention is directed to a process and its relating plant for roasting gold bearing sulfide concentrate. Concentrate particles with a carbon content of more than 0.5 wt-% are fed into a roaster where they are thermally treated at a t...  
WO/2018/162089A1
The invention describes a process for roasting of metal concentrate. Concentrate particles are fed into a roaster where they are thermally treated at a temperature in the range of 500 and 1200°C in a fluidized bed to form a calcine. At ...  
WO/2018/155687A1
The present invention pertains to a metal recovery agent or a metal compound recovery agent that comprises a dried product of cells of a red alga belonging to the order Cyanidiales, a dried product of a material derived from cells of a r...  
WO/2018/152484A1
A process for the incineration of activated coal-supported PGM catalysts, the process comprising a joint incineration of a multilayer arrangement, wherein the multilayer arrangement includes (i) a top layer of particulate activated coal-...  
WO/2018/131492A1
Provided is a hyperbranched polymer which is represented by formula (1) and which is characterized by having a weight-average molecular weight of 1,000 to 1,000,000. In formula (1), A1 is a group comprising an aromatic ring, A2 is a grou...  
WO/2018/127766A1
Method and apparatus are provided to select precious metals slurries of ore and water. Slurry is directed to pass over detectors, each comprising a pair of low voltage electrodes. The electrodes are spaced apart to form a detection gap. ...  
WO/2018/108661A1
Process for leaching a noble metal from a source thereof, said process comprising the following steps: -reacting a bromide with hydrogen peroxide in order to generate bromine; -transferring said bromine into a leaching tank; and -adding ...  
WO/2018/093298A1
Use: The invention relates to hydrometallurgy of noble metals. Essence of the invention: A method comprises anode dissolution of alloys of various compositions that contain noble metals, including gold, and subsequent reduction on a cath...  
WO/2018/093470A1
A process for the production of a PGM-enriched alloy comprising 0 to 60 wt.-% of iron and 20 to 99 wt.-% of one or more PGMs selected from the group consisting of platinum, palladium and rhodium, the process comprising the steps of (1) p...  
WO/2018/091361A1
A method for extracting and separating Gold, Silver, Copper, Zinc and/or Lead from an Arsenic-containing ore, concentrate or tailings characterized in that the extraction is carried by roasting in the presence of a calcium-containing mat...  
WO/2018/082516A1
A method for comprehensive recovery of silver-containing lead slag, mainly comprising the following steps: impurity removal, deleading, reduction and filtration, lead dissolving, hot filtration, quenching filtration, cleaning, thermal de...  
WO/2018/065127A1
The invention relates to a method for removing noble metal from particulate refractory material containing noble metal, comprising the following steps: (1) providing particulate refractory material containing noble metal, (2) bringing th...  
WO/2018/065125A1
The invention relates to a method for removing noble metal from coarse porous molded bodies of noble-metal-containing refractory material, comprising the following steps: (1) providing coarse porous molded bodies of noble-metal-containin...  
WO/2018/065126A1
The invention relates to a method for separating noble metal from particulate noble metal-containing refractory material, comprising the steps: (1) providing particulate noble metal-containing refractory material, (2) bringing the partic...  
WO/2018/064940A1
Provided are a gold mining and processing method. The method comprises steps of: A. After gold ore are mined, grinding the gold ore to obtain a gold mine raw material; B. Processing a gold ore material of weight m at a temperature of 150...  
WO/2018/050950A1
The present invention relates to a method for recovering at least one precious metal from an aqueous solution containing said metal and particularly to recovery of silver and optionally one or more other precious metals from overflow of ...  
WO/2018/049487A1
A process for recovering copper, uranium and one or more precious metals from an ore material, including: a. forming a heap of the ore material; b. subjecting the heap of the ore material to an acidic heap leach using an iron containing ...  

Matches 1 - 50 out of 3,973