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WO/2021/215449A1 |
Provided is a method for efficiently promoting a leaching reaction of copper. Equipment for inducing leaching of copper, wherein: the equipment comprises a leaching reaction reactor and a reduction potential controller; the reactor is co...
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WO/2021/207792A1 |
A process for leaching minerals that contain metal sulphides and one or more precious metals or precious metal compounds, the process comprising the steps of a first leaching step to leach the minerals under oxidative conditions at a pH ...
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WO/2021/205903A1 |
The purpose is to provide a method for recovering a valuable metal at low cost. The present invention is a method for recovering a valuable metal, the method comprising a step of preparing a burden material containing at least a valuab...
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WO/2021/204579A1 |
A direct current plasma arc furnace (1) for melting and/or treating a material by production of electric arcs and providing a molten product, the furnace (1) comprising; a tank (10) comprising: a crucible (12) delimiting a chamber (11) c...
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WO/2021/186376A1 |
An oxidative bioleaching process for leaching a base metal from an ore that includes an ore agglomeration step, an ore stacking step wherein agglomerated ore is stacked to form a heap, a curing step, a rinse step, an inoculation step and...
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WO/2021/186374A1 |
A method of leaching copper from a heap of ore which includes an ore agglomeration step, an ore stacking step wherein agglomerated ore is stacked to form a heap, a curing step, a leach step, and a rinse step, wherein, during the ore aggl...
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WO/2021/177005A1 |
Provided is a method for recovering valuable metals contained in waste batteries, wherein valuable metals can be efficiently recovered while suppressing a reduction in recovery rate. The method according to the present invention for re...
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WO/2021/172718A1 |
The present invention relates to a metal leaching method using linking between bioleaching and adsorption, the method adsorbing and recovering metal cyanide ions generated through bioleaching, thereby increasing metal leaching efficiency...
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WO/2021/166755A1 |
Provided is a method for treating an alloy by which nickel and/or cobalt can be selectively isolated from an alloy that contains copper as well as nickel and/or cobalt, in a waste lithium ion battery or the like. The present invention ...
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WO/2021/157483A1 |
Provided is a separation method for valuable resources, the method comprising: a heat treatment step for heat-treating an object containing valuable resources to melt aluminum and separate a molten material; a crushing step for crushing ...
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WO/2021/147342A1 |
An all-component rapid microwave digestion and noble metal ion liquid extraction method for a waste circuit board, belonging to the field of hydrometallurgy. As microwave can penetrate a leaching medium and directly heat a circuit board,...
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WO/2021/134385A1 |
An oxygen-enriched side blowing furnace smelting method for a secondary resource having arsenic and dispersed elements by adding ion and chlorinating agent respectively, comprising: adding a chlorinating agent accounting for 1-1.5% of th...
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WO/2021/127795A1 |
This patent of invention application relates to a system for detecting and quantifying mineralogical species by means of X-ray diffraction (XRD) of the dry copper concentrate prior to being injected in a converter or smelting furnace. Sp...
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WO/2021/129205A1 |
A method for the coordinated treatment of slag from the pyrolysis of and smoke from smelting a scrap circuit board, which belongs to the field of the comprehensive recovery and use of valuable elements in typical ash from the fire treatm...
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WO/2021/119862A1 |
A hydrometallurgical process for curing primary and secondary sulphides to improve copper recovery, which comprises: (a) crushing: the size of the mineral must be reduced to less than 5 cm; (b) agglomeration: the crushed mineral must be ...
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WO/2021/106884A1 |
This concentrate burner feeds a raw material into a flash furnace, and also feeds a reaction gas, which contributes to the reaction of the raw material, into at least the flash furnace. The concentrate burner comprises: a first cylindric...
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WO/2021/106631A1 |
Provided is an ore dressing method that can efficiently separate copper ore from molybdenum ore. The ore dressing method comprises a conditioning step for adding a disulfite to ore slurry comprising copper ore and molybdenum ore; and, ...
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WO/2021/099538A1 |
Disclosed is a process for recovering copper from secondary raw materials comprising in a feed batch smelting (100) in a furnace a feedstock (1, 2) comprising copper oxide and elemental iron for forming a concentrated copper intermediate...
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WO/2021/092706A1 |
The invention relates to a method for producing copper metal from copper concentrates without generating waste, which comprises: (a) oxidising copper concentrate; (b) cleaning and cooling the gases; (c) feeding to a reduction reactor; (d...
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WO/2021/088710A1 |
A crude copper refining apparatus and a refining method. The refining apparatus comprises a top blowing furnace and an anode furnace that are horizontally placed and are in communication by means of a feeding chute, the top of the top bl...
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WO/2021/088709A1 |
Disclosed is an anode furnace feeding device. The device comprises an anode furnace barrel (10), which is arranged horizontally, and a feeding mechanism, the anode furnace barrel (10) is connected to a converting furnace (20) by means of...
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WO/2021/084155A1 |
A method for treating process water of a flotation arrangement (1) is disclosed, the flotation arrangement comprising flotation arrangement (1) comprising a mineral flotation line (10) and a process water treatment arrangement (20) for t...
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WO/2021/081679A1 |
The present invention describes a solid-liquid-solid hydrometallurgical process, optimized and independent of redox potential, to increase the solubilization of metals from ores and/or concentrates with a particle size distribution of le...
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WO/2021/085023A1 |
Provided is a method for treating a gold-containing ore or a gold-containing refining intermediate produced by subjecting the ore to a refining treatment, the method comprising: a leaching step of leaching gold out from the ore or the re...
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WO/2021/077922A1 |
Provided is a method for extracting copper from a waste printed circuit board using glycine. The steps are: through dismantling and mechanical crushing treatment to obtain the sample of the waste printed circuit board with the smaller pa...
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WO/2021/074522A1 |
The invention relates to a method for selective leaching of metal zinc, comprising the following consecutive steps: a) providing a mixture of solid particles comprising metal zinc and metal copper in alloy form, b) immersing the mixture ...
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WO/2021/030905A1 |
The disclosure provides a magnetic reagent comprised of a recombinant yeast cell having the following genetic modifications: impairment of the CCC1 gene; addition of at least one copy of a human ferritin gene complex; addition of at leas...
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WO/2021/028694A1 |
A process for recovering a metal in the form of a metal halide from a metal-containing source is described, the process comprising the steps of:- (i) forming a solid metal halide containing product by contacting the metal-containing sour...
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WO/2021/028201A1 |
A process is disclosed for the recovery of valuable metals from oxidic ores, in particular from polymetallic nodules. The process is suitable for the recovery of Cu, Co, Ni, Fe, and Mn, which are the main metals of interest in such polym...
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WO/2021/011926A1 |
In one aspect, the disclosure relates to a continuous process for treating acid mine drainage while simultaneously recovering a high-grade rare earth preconcentrate suitable for extraction of commercially valuable rare earth oxides. In a...
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WO/2021/006772A1 |
The present method for processing copper-nickel sulfide materials can be used in the non-ferrous metal industry when processing copper-nickel sulfide materials. Processing copper-nickel sulfide materials comprises oxidizing roasting of t...
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WO/2020/253733A1 |
A method for selective oxygen pressure leaching of precious metal enrichment using nickeliferous material with high iron and copper contents. The method comprises: purification and impurity removal, atmospheric pressure leaching, oxygen ...
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WO/2020/245619A1 |
The object of the invention is the process of copper and zinc separation from industrial electrolytes of very complex composition, including pregnant leach solutions (PLS) which are the products of the ores, flue dusts and solid flotatio...
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WO/2020/246479A1 |
Provided are a raw material discharge device, a method of processing of electronic/electrical device component scrap, and a method of raw material discharge for electronic/electrical device component scrap enabling efficient discharge of...
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WO/2020/224053A1 |
A method for comprehensive recycling polymetallic products from waste integrated circuit boards by pyrolysis, comprising the steps of: (1) smelting and blending: adding polymetal obtained by pyrolysis of waste integrated circuit boards i...
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WO/2020/211757A1 |
A method for recovering copper from a phosphoric acid extractant-containing solution. The method comprises: mixing a phosphoric acid extractant-containing solution with solvent oil to obtain an oil-water mixture; performing oil-water sep...
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WO/2020/209485A1 |
The present invention provides a Cu-Co-Si-Fe-P-based copper alloy for electronic materials, which has an improved balance among strength, electrical conductivity, and bending workability, and a method for preparing same. The Cu-Co-Si-Fe-...
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WO/2020/203608A1 |
This method for determining roasting conditions of copper concentrates is characterized by comprising: a step for roasting arsenic-containing copper concentrates in a furnace while supplying oxygen-containing gas to the furnace, to cause...
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WO/2020/183261A1 |
The present invention concerns a method for recovering gold from electronic components, comprising the execution of a first macro-step of dissolving gold and copper from said electronic components using an aqueous solution comprising HNO...
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WO/2020/171994A1 |
Provided herein is a system for producing suspensions comprising soluble metal ions. The system comprises a basket to hold a metal load comprising a permeable floor so as to allow a solution to come into contact with the metal load. The ...
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WO/2020/142855A1 |
The present patent relates to a plant in a regime for the two-stage production of copper sulphate pentahydrate from oxidised copper minerals, with an average content of 20% Cu, with mineral species predominant in copper oxides. The first...
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WO/2020/142856A1 |
The present patent considers a two-stage method for obtaining copper sulphate pentahydrate from oxidised copper minerals with an average content of 20% Cu, wherein the predominant mineralogical species are copper oxides. The first stage ...
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WO/2020/126632A1 |
The present disclosure concerns a process for the recovery of valuable metals from polymetallic nodules. A two-stage process using SO2 in an acidic aqueous media is disclosed. In a first step, performed in mildly acidic conditions, Mn, N...
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WO/2020/099912A1 |
The invention relates to a chemical and physical hydrometallurgical method with solid-liquid-solid interaction, for the solubilisation of copper sulphides, by means of the selective transformation and precipitation of soluble, chlorinate...
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WO/2020/099966A1 |
The present invention relates to a solid-liquid-solid hydrometallurgical method in the presence of hydrated and/or non-hydrated salts in an oversaturation condition, which is achieved by the intentional and repetitive application of dryi...
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WO/2020/093234A1 |
Disclosed is a fuel mixture for smelting copper. The fuel mixture comprises: a composite carbon powder, oxygen and natural gas, which are conveyed to a mixing gun through respective conveying pipes therefor and merged, and are finally in...
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WO/2020/082726A1 |
A bottom-blowing refining furnace and use thereof. The bottom-blowing refining furnace comprises a rotary furnace (100) and a bottom-blowing redox lance (200). The rotary furnace (100) comprises a rotary furnace housing (110), a furnace ...
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WO/2020/085219A1 |
Provided is a method for selecting a mineral containing arsenic. A peptide having the following amino acid sequence: (TSNQ)-(LIVFA)-(ED)-(RKNMDCPQSETGWHY)-(LIVFA)-(RKNMDCPQSETGW
HY)-(LIVFA)-(LIVFA)-(LIVFA)-(RHK)-(TSNQ)-(TSNQ) [wherein an...
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WO/2020/078779A1 |
The present invention relates to a process for the recovery of transition metals from batteries comprising treating a transition metal material with a leaching agent to yield a leach which contains dissolved copper impurities, and deposi...
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WO/2020/077026A1 |
Disclosed are reagent compositions for metal solvent extraction and methods of preparation and use thereof. In certain embodiments, the disclosure relates to recovering metal values from an aqueous process stream using solvent extraction...
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