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Matches 1 - 50 out of 3,880

Document Document Title
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 ...  
WO/2018/006433A1
Disclosed is a process for recycling palladium-containing catalyst materials, wherein the process comprises: (a) grinding the palladium-containing catalyst in a milling module; (b) removing palladium from the palladium-containing catalys...  
WO/2018/008014A1
A method of separating Osmium from Iridium, including receiving a powdered mixture of Osmium and Iridium, oxidizing the Osmium of the powdered mixture, capturing the oxidized Osmium in a trapping solution, reducing the oxidized Osmium fr...  
WO/2017/221074A1
An aqueous-based leaching solution for precious metal, the leaching solution comprising iodide salt material; and carboxylic acid material, the leaching solution being made by a process including the step of passing a first mixture throu...  
WO/2017/216417A1
The invention relates to a method of recovering gold from a gold-bearing concentrated copper chloride solution com¬ prising: a) an electrodeposition step, wherein an external potential or reducing current is applied to an electrode cont...  
WO/2017/212398A1
The present invention relates to a dispensing device comprising a tank, a pressure regulator, a dispensing mechanism and a pump. The tank is connected to a supply of liquid by means of a pipeline. The pressure regulator and the tank are ...  
WO/2017/201140A1
Described herein are compositions and methods for preferentially separating mercury from a metal product where both are present in an ore leachate. The separation is accomplished by adding a precipitating agent and a coagulant to an ore ...  
WO/2017/195109A1
This invention belongs to the fields of chemistry and biology and, in particular, relates to a hydrometallurgical process for leaching and cementation in the production of gold with cyanide in the presence of traces of ozone and ammonia,...  
WO/2017/195109A4
This invention belongs to the fields of chemistry and biology and, in particular, relates to a hydrometallurgical process for leaching and cementation in the production of gold with cyanide in the presence of traces of ozone and ammonia,...  
WO/2017/185158A1
A process for reducing arsenic content from arsenic-bearing gold concentrate or other arsenic-bearing gold materials to produce the low arsenic-bearing gold concentrate. The process comprises: (i) optionally regrinding the input arsenic-...  
WO/2017/167553A1
The invention relates to a method for recovering rhenium and at least one platinum group element from aluminum-oxide-based catalyst carrier material, catalyst particles comprising rhenium and comprising at least one element of the platin...  
WO/2017/170960A1
An object of the present invention is to provide a method for recovering gold in an ore or a refining intermediate by sufficiently leaching gold in a raw material resulting from the ore or the refining intermediate in an acidic solution ...  
WO/2017/170444A1
A method for recovering a noble metal from a mixture that contains the noble metal with use of a noble metal recovering agent which contains at least one amine compound selected from among aromatic primary amine compounds and aliphatic p...  
WO/2017/150659A1
A method for collecting minor metals from minor metal-containing glass, characterized in that the method comprises heating the minor metal-containing glass to a temperature of 900-1100°C and thereby melting the minor metal-containing gl...  
WO/2017/143499A1
System and process for recycling palladium-containing components to reclaim precious metals such as palladium, silver and gold. The system includes a number of modules to systematically separate palladium from palladium-containing compon...  
WO/2017/120815A1
Systems and processes for recycling printed circuit boards, wherein precious metals may be reclaimed. The system generally includes a number of modules to systematically remove materials from the printed circuit boards and to separate th...  
WO/2017/111092A1
The present invention addresses the problem of providing an agent for selective metal recovery, a metal recovery method and a metal elution method, whereby a metal can be selectively recovered, eluted , refined, etc. at low cost and high...  
WO/2017/103788A1
The invention relates to a solution for leaching precious metals contained in a mineral, as well as the use thereof and the leaching process in which said solution is applied. The solution for leaching precious metals comprises NaCl, a n...  
WO/2017/086497A1
An embodiment of the present invention provides a method for recovering gold, the method comprising: (a)a step for dissolving a metal-containing raw material in an acidic solution to prepare a metal chloride mother liquor, and then filtr...  
WO/2017/071685A1
The invention relates to a method for the recovery of precious metal from materials containing precious metal, said method comprises the following steps of: A) bringing the materials containing the precious metal into contact with an oxi...  
WO/2017/065621A1
The invention relates to the hydrometallurgical process for the recovery of gold from arsenical refractory minerals, which promote a more efficient recovery in comparison to the conventional processes. This process comprises two steps: i...  
WO/2017/031032A1
A system is provided for recovering catalytic precious metals from aqueous galvanic processing solutions. The system comprises at least one holding tank, and at least one filtration unit, wherein the holding tank holds the galvanic proce...  
WO/2017/022799A1
The present invention provides a method for homogenizing a Ru-containing Cu alloy, the method being capable of improving the solubility of Ru in the Ru-containing Cu alloy and accurately measuring the noble metal content in the Cu alloy....  
WO/2017/011877A1
A method for detecting gold nanoparticles present in an aqueous sample containing gold nanoparticles, the method including: a. mixing a fluorophore with the aqueous sample containing gold nanoparticles to form a fluorescent gold solution...  
WO/2017/008097A1
The invention discloses a measurement apparatus for measuring a volume of a desired solid component in a sample volume of a solid-liquid slurry. The sample volume of the slurry is received into a receptacle and screened to separate out t...  
WO/2017/008955A3
Method for removing inorganically and/or organically bound carbon from a noble metal-containing composition in a furnace chamber that comprises at least one direct burner and at least one exhaust gas line. The method is characterized by ...  
WO/2017/008955A2
Method for removing inorganically and/or organically bound carbon from a noble metal-containing composition in a furnace chamber that comprises at least one direct burner and at least one exhaust gas line. The method is characterized by ...  
WO/2017/001081A1
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: (1) pro...  
WO/2016/210051A8
The recovery of noble metal(s) from noble-metal-containing material is generally described. The noble metal(s) can be recovered selectively, in some cases, such that noble metal(s) is at least partially separated from non-noble-metal mat...  
WO/2016/210051A1
The recovery of noble metal(s) from noble-metal-containing material is generally described. The noble metal(s) can be recovered selectively, in some cases, such that noble metal(s) is at least partially separated from non-noble-metal mat...  
WO/2016/180624A1
The above mentioned invention describes a process for removing arsenic and/or antimony sulfides from copper, nickel and/or gold containing ore particles. Ore particles are fed into a reactor, wherein a fluidizing gas is injected into the...  

Matches 1 - 50 out of 3,880