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WO/2017/035675A1 |
The invention relates to a method for removing arsenic from materials with a high arsenic and/or selenium content, comprising adding the material to a pressure reactor, adding an alkaline leaching solution, adding an oxidising gas, mixin...
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WO/2017/033694A1 |
Provided is a high purity copper sputtering target material characterized in that Cu purity excluding O, H, N and C is at least 99.99998 mass%, Al content is 0.005 mass ppm or less, Si content is 0.05 mass ppm or less, Fe content is 0.02...
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WO/2017/031574A1 |
The processes of the present disclosure can comprise feeding a furnace with a raw material chosen from a copper-containing material, a nickel-containing material, a cobalt-containing material and mixtures thereof. These materials can be ...
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WO/2017/004694A1 |
Process to recover copper from a process feed including one or more feed components containing a base metal sulphidic feed, iron, copper and arsenic. Process feed and aqueous quench solution are introduced to a pressure oxidative leachin...
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WO/2017/001306A1 |
The present invention relates to an apparatus and an arrangement for the (pyro)metallurgical treatment of electrical and/or electronic scrap or components, which are in particular configured in such a way that substantially uncontaminate...
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WO/2016/197201A1 |
A method for the pyrometallurgical processing of a sulphide material containing copper, the sulphide containing relatively high quantities of silica and relatively low quantities of iron, wherein the process comprises feeding the sulphid...
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WO/2016/198976A1 |
A method of integrated chemical and bacterial leaching of a base metal from a mineral is disclosed. The method includes leaching a base metal from a mineral with an ammoniacal thiosulfate chemical leaching solution having a pH from about...
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WO/2016/183611A1 |
A simplified or truncated hydrometallurgical method for the removal of uranium, thorium, radium, lead, bismuth and polonium and/ or other radionuclides from a radioactive copper concentrate to produce an upgraded copper concentrate havin...
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WO/2016/183610A1 |
A hydrometallurgical method for the removal of uranium, thorium, radium, lead, bismuth and polonium and/ or other radionuclides from a radioactive copper concentrate (92) to produce an upgraded copper concentrate having lowered emission ...
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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...
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WO/2016/177936A1 |
Provided herein is a process of fire refining blister copper, comprising the steps of (a) providing molten blister copper into an anode furnace; (b) when sulfur concentration of the molten blister copper provided in step (a) is above a f...
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WO/2016/171613A1 |
A method for production of black copper comprises an oxidation step (210) and a reduction step (260). The oxidation (210) comprises melting and agitation of an initial material comprising at least Cu, Fe and S and flux into an initial mo...
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WO/2016/170233A1 |
The present invention provides a method for melting copper scrap and/or refining blister copper, comprising the steps of: (a) charging of copper scrap into an empty anode furnace and melting the copper scrap; (b) charging molten blister ...
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WO/2016/165027A1 |
This application pertains to methods of recovering metals from metal sulfides that involve contacting the metal sulfide with an acidic sulfate solution containing ferric sulfate and a reagent that has a thiocarbonyl functional group, whe...
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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...
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WO/2016/148305A1 |
A method of leaching copper from a copper sulfide ore which includes adding a potential adjustment agent for lowering a potential of a leaching solution obtained after leaching copper from the copper sulfide ore by using iodide ion and i...
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WO/2016/149303A1 |
A coalescing element for aggregating droplets of an emulsion. The coalescing element includes a nonwoven web substrate. A coalescer that includes the coalescing element can also include a housing and a fluid inlet and a fluid outlet each...
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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:...
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WO/2016/137356A1 |
The invention relates to hydrometallurgical methods for processing solutions comprising non-ferrous metals, by precipitating non-ferrous metal hydrates using a magnesium-containing precipitant. The essence of the invention consists in...
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WO/2016/134494A1 |
The invention relates to a system and a method for the hydromagnetic deposition of copper from copper electrolytes without the presence of pairs of anode-cathode electrodes. This electronic system is a device that, inter alia, aims to el...
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WO/2016/122280A1 |
The present invention relates to a method for producing copper, the method comprising a step of: using copper ions in a concentration of between 1 and 10% and an acid component in a concentration of between 1 and 2M, using industrial was...
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WO/2016/099249A1 |
The invention relates to a method for the extraction of metals from a mineral source by means of acid leaching, which method involves the following steps: selecting a mineral source rich in the metal of interest, such as, inter alia, cop...
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WO/2016/100981A1 |
A method of improving leach kinetics and recovery during atmospheric or above- atmospheric leaching of a metal sulfide is disclosed. A system for practicing the aforementioned method is also disclosed. Apparatus for practicing the aforem...
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WO/2016/094956A1 |
1. A method for recovering one or more of copper, uranium and a precious metal from an ore material, including: (a) forming a heap of the ore material; (b) during active heap irrigation, contacting the heap of the ore material with an ir...
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WO/2016/082051A1 |
The invention relates to a process that allows electrolytic copper cathodes to be produced, using the pregnant leach solution (PLS) directly in the electrowinning, avoiding the step of mineral concentration by solvent extraction. Further...
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WO/2016/081976A1 |
A split solvent extraction process for treating pregnant leach solution (PLS) from a heap leach process is described. The solvent extraction process comprises the steps of partitioning the heap leach process to produce two or more pregna...
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WO/2016/077937A1 |
The invention relates to a differentiated, adaptive and automated system and method for leaching in extractive metallurgy, applicable to modular piles with a system of differentiated pipes, interconnected vats or any other system for pre...
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WO/2016/078959A1 |
The present disclosure concerns an apparatus suitable for smelting and separating metals in flexible oxido-reduction conditions. More particularly, it concerns an apparatus for smelting metallurgical charges comprising a bath furnace sus...
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WO/2016/074095A1 |
A burner for a flash smelting furnace comprises a tubular lance enclosing a first gas flow passage and having a lower end portion which includes one or more gas outlet passages. The lower end portion has upper and lower annular sealing s...
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WO/2016/075368A1 |
The present invention provides a process of treating complex sulfide concentrate, comprising the steps of(a) roasting wet or slurried complex sulfide concentrate in a furnace at a temperature of at least 720°Cto obtain a cal- cine; and ...
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WO/2016/055955A1 |
A weir module (100) is provided for releasable attachment to a pyrometallurgical furnace (10) that includes at least one weir attachment section (120). The weir module (100) comprises a discrete structure to the furnace (10), and the wei...
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WO/2016/057889A1 |
A method and system of controlling a melting process of copper in a copper melting furnace including measuring at least one furnace parameter, wherein the at least one furnace parameter includes one or both of a furnace temperature and a...
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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 ...
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WO/2016/034383A1 |
Disclosed is a wall for a furnace for producing nonferrous metals. The wall comprises a connecting wall and a transition wall; the connecting wall is a hollow cylinder, while the transition wall is located above the connecting wall. The ...
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WO/2016/026062A1 |
The present invention relates to a method for leaching secondary and primary sulphides of copper in a ferrous chloride medium with iron-oxidising bacteria adapted from the crushing of the mineral from the mine, comprising the steps of: m...
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WO/2016/027158A1 |
The present invention relates to a process and reactor for the leaching of primary sulphide minerals, with systems to solve the problem of the passivation layer as well as methods for selective metal deposition on the cathode. The propos...
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WO/2016/025492A2 |
A method of operating a copper or other metal value concentrator is disclosed. According to some embodiments, the method may comprise producing a final copper concentrate; periodically or continuously analyzing the produced final copper ...
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WO/2016/011549A1 |
The invention provides processes that significantly reduce acid consumption while maintaining efficient leach recovery of copper from oxide and acid consuming ores. The invention provides a hydrometallurgical process that reduces acid re...
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WO/2015/199098A1 |
A method for processing copper-containing molybdenum ore including: a step for bringing a 50-100°C acidic aqueous solution into contact with copper-containing molybdenum ore while supplying an oxygen-containing gas to the acidic aqueous...
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WO/2015/192762A1 |
A ferric hydroxide-based raw material containing high value elements, an application thereof, and a preparation method therefor. The preparation method comprises preparing a ferric hydroxide-based raw material containing high value eleme...
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WO/2015/189707A1 |
The hydrometallurgical copper extraction processes of the present teachings generally Including two steps: a conditioning or activating step using low concentrations of ammonia and ammonium in an aqueous solution; and an acid leaching st...
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WO/2015/188799A1 |
The invention relates to a method for recovering metals, such as noble metals or copper, from secondary materials and other materials comprising organic constituents, wherein the organic components are extracted from the secondary materi...
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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...
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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...
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WO/2015/173472A1 |
The present invention provides a method of converting copper containing material to blister copper comprising: (a) providing copper containing material comprising copper sulfides and iron sulfides, whereby the copper containing material ...
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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...
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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...
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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 ...
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WO/2015/158963A1 |
The invention relates to a method for producing cathode copper. The method comprises a smelting step including feeding sulfidic copper bearing material (1; 1a, 1b) and oxygen-bearing reaction gas (2) into a suspension smelting furnace (5...
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WO/2015/151903A1 |
Provided is a processing method for arsenic, with which it is possible for the arsenic that is contained in copper ore containing arsenic to be processed into a stable form suitable for long-term stockpiling and storage. This arsenic pro...
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