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WO/1981/001297A1 |
In a method of purifying melts, substantially comprising non-ferrous metals, preferably copper and lead, from impurities in the form of not-readily separable elements, such as cobalt, nickel, lead, bismuth, antimony and arsenic, there is...
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WO/1981/001159A1 |
Process and apparatus for recovery of hydrogen-reduced metals from aqueous salt solutions at a porous hydrophobic catalytic barrier (2). Previously, the prior art provided a diffusion barrier between a hydrogen anode and a cathode to pre...
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WO/1980/001287A1 |
Process for the direct production of copper metal by directing an aqueous slurry of cupriferous material into a molten cupriferous bath maintained at a temperature of 2100 to 2400 F. Neither the cupriferous material of the slurry nor tha...
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WO/1979/001056A1 |
Copper is recovered from copper salts selected from the group consisting of copper chlorides, copper oxides and copper oxychlorides by reducing the finely divided solid copper salts with hydrogen under turbulent conditions at a temperatu...
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WO/1979/000906A1 |
Process for recovery of copper, molybdenum, gold and elemental sulfur in tailings from hydrometallurgical processing of copper sulfide ores, particularly chalcopyrite. The tailings are usually discarded, and thus the recovery of valuable...
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WO/1979/000104A1 |
A method of producing blister copper from raw material containing antimony. The invention is characterized in that a slag is separated from copper matte formed by smelting the raw material. Thereafter the matte is brought into contact, u...
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JP7466446B2 |
A dilute copper metal composition includes 57-85% wt Cu, ≥3.0% wt Ni, ≤0.8% wt Fe, 7-25% wt Sn and 3-15% wt Pb. A process includes the steps of partially oxidizing a black copper composition to obtain a first copper refining slag and...
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JP2024515518A |
A method for treating hydrated ore material with metal values is to treat ferrous chloride (FeCl) by contacting the hydrated ore material with gaseous hydrochloric acid.2) and at least one other metal divalent chloride (M2+Cl2) is produc...
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JP7462204B2 |
To provide a method for leaching enargite, a poorly-soluble mineral, by bioleaching.Activated carbon is added to a raw material comprising enargite, and bioleaching is performed with iron bacteria. The amount of the added activated carbo...
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JP2024042494A |
An object of the present invention is to provide a method for analyzing slag gross and a method for recovering metal from a flash furnace, which are capable of analyzing the cause of slag loss in a pyrometallurgical smelting process usin...
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JP7454329B2 |
To provide a high-purity electrolytic copper containing Cu having purity of 99.9999 mass% or more excluding gas components, and 0.1 mass ppm or less of S, which can stably be produced when performing electrocrystallization by lowering el...
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JP7453339B2 |
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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JP2024036835A |
The present invention provides a metal recovery agent capable of recovering metals under an artificially controlled environment. A metal recovery agent includes a reducing compound that is at least one selected from the group consisting ...
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JP7449532B2 |
To provide a beneficiation method capable of more efficiently separating mineral containing arsenic.A beneficiation method comprises: a heating step for heating a raw material containing first mineral that contains iron and does not cont...
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JP7447643B2 |
To provide a method for effectively recovering valuable metals when recovering valuable metals contained in a battery.A method for recovering valuable metals from a waste battery includes: a roasting step of roasting the waste battery to...
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JP7441237B2 |
A method of the invention for treatment of particulate material for metal recovery includes heating a furnace to a first temperature, feeding a particulate material into the furnace, and before or after heating of the raw material, feedi...
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JP2024508733A |
A method for recovering metals from a feed stream (1) containing one or more valuable metals, the method comprising: (i) passing the feed stream (1) through an alkaline leaching (20) to leach valuable metal salts; forming a slurry (5) co...
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JP7438155B2 |
In producing a copper concentrate by flotation in which copper minerals are separated from arsenic minerals by using oxoacids of sulfur and oxidants, the arsenic in the copper concentrate is reduced by a simple method. In producing the c...
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JP2024023304A |
A copper dilute metal composition is provided. The present invention provides a copper dilute metal composition, on a weight basis, relative to its total dry weight: - at least 57% and maximum 85% copper by weight; - at least 6.0% by wei...
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JP7429481B1 |
An object of the present invention is to provide a metal recovery method that makes it possible to more efficiently recover metals from waste such as electronic equipment. [Solution] The metal recovery method consists of a coarse disasse...
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JP2024017646A |
An object of the present invention is to provide equipment that can stably convey airflow without overdrying even powder particles that are likely to cause blockages due to adhesion. [Solution] A transport pipe that transports powder and...
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JP2024013650A |
The present invention improves the accuracy of predicting the recovery rate of metals in flotation for ores containing a mixture of multiple minerals. [Solution] A flotation recovery rate prediction device is a flotation recovery rate pr...
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JP2024013693A |
[Problem] CaMnO3A method for recovering precious metals from a material to be treated using a perovskite oxide as a recovery agent is provided, which is applicable to industrial implementation. The present invention relates to a method f...
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JP2024013648A |
The present invention improves the accuracy of predicting the recovery rate of metals in flotation for ores containing a mixture of multiple minerals. [Solution] A flotation recovery rate prediction device is used for predicting the reco...
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JP2024013349A |
[Problem] To provide a method that can efficiently separate an active material layer from a current collector. [Solution] An electrode having a current collector and an active material layer disposed on the current collector and containi...
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JP7423104B1 |
The present invention provides a method for recovering valuable metals from battery slag of a lithium ion battery, which can maintain the processing temperature at a low temperature in each series of steps and perform the processing in a...
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JP2024010918A |
[Problem] To provide a method for recovering valuables from a lithium ion secondary battery that can recover high-grade cobalt and nickel at a high recovery rate. [Solution] A heat treatment step for obtaining a heat-treated product by h...
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JP7420808B2 |
The present invention relates to a method for the recovery of metals from feed materials containing such metals. More specifically, the present invention relates to the recovery of various metals contained in spent lithium-based (Li-ion)...
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JP2024502575A |
Copper concentrate, e.g. chalcopyrite, is contacted with an aqueous solution containing an acid and treated with a reducing agent, e.g. vanadium(II) ions, chromium(II) ions, or tungstozinc acid (H6ZnW12O40). The aqueous solution reduces ...
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JP7413847B2 |
To provide a method capable of efficiently and stably recovering a valuable metal contained in waste batteries, while efficiently removing the impurity.The method of recovering the valuable metal from the waste battery according to the p...
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JP7409165B2 |
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 reco...
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JP7400590B2 |
To provide a method capable of inexpensively and safely recovering valuable metal.A method for recovering valuable metal from a waste lithium-ion battery includes: an oxidize-roasting process to obtain an oxidize-roasted material by oxid...
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JP7400589B2 |
To provide a method capable of effectively cooling and using surplus heat by carbon combustion, and as a result, capable of inexpensively and efficiently recovering valuable metal.A method for recovering valuable metal from a waste lithi...
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JP7400333B2 |
To provide a method for recovering a valuable metal at a low cost.A method for recovering a valuable metal includes the steps of preparing a charging material containing at least copper (Cu) as a valuable metal, subjecting the charging m...
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JP7398395B2 |
A metal composition includes from 90.10% wt up to 97% wt of copper, at least 0.1% wt of nickel, at least 0.0001% wt and less than 1.00% wt of iron, and 250-3000 ppm wt of oxygen. The composition is suitable for being processed by a proce...
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JP2023551442A |
Improved processes and systems for producing renewable hydrogen suitable for reducing metal ores and for producing activated carbon are disclosed. Some variations include pyrolyzing biomass to produce carbon-containing biological reagent...
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JP2023551443A |
Improved processes and systems for producing renewable hydrogen suitable for reducing metal ores and for producing activated carbon are disclosed. Some variations include pyrolyzing biomass to produce carbon-containing biological reagent...
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JP2023550618A |
Improved processes and systems for producing renewable hydrogen suitable for reducing metal ores and for producing activated carbon are disclosed. Some variations include pyrolyzing biomass to produce carbon-containing biological reagent...
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JP7389354B2 |
To provide a method for effectively recovering valuable metals when recovering valuable metals contained in a battery.A method for recovering valuable metals from a waste battery includes: a roasting step S1 of roasting the waste battery...
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JP7389344B2 |
To provide a method that can efficiently recover valuable metal while maintaining a good work environment when disposing of a waste battery.A method for recovering valuable metal from waste battery has a calcining step S1 for calcining a...
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JP7389343B2 |
To provide a method for efficiently separating valuable metal in a waste battery and recovering the valuable metal effectively and inexpensively.A method for recovering valuable metal from waste battery has a calcining step S1 for calcin...
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JP7385872B2 |
Provided is an ore dressing method that can obtain a low-arsenic-grade concentrate from a high-arsenic-grade starting material. The ore dressing method has: a repulping step for obtaining a mineral slurry by adding water to a starting ...
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JP2023159056A |
To provide a method for recovering valuable materials from a lithium-ion secondary battery, where the recovery rate for copper can be improved.A method for recovering valuable materials from a lithium-ion secondary battery comprises a he...
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JP7368802B2 |
To provide a separation method in which a heavy metal is selected with a high priority, when comparing a metal M and the heavy metal, and a technique related thereto.A heavy metal separating method has a magnesium compound contact step i...
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JP7368474B2 |
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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JP2023155582A |
To provide an evaluation method that can evaluate a reaction state in a reaction shaft.An evaluation method includes: the step of sampling the falling matter in a reaction shaft that oxidatively burns copper concentrate as it falls, at r...
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JP2023155581A |
To provide an evaluation method that can evaluate a reaction state in a reaction shaft, and a flash smelting furnace operation method.An evaluation method includes: the step of sampling the falling matter in a reaction shaft that oxidati...
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JP7363207B2 |
To provide a process for recovering valuable metal at low cost.Provided is a process for recovering valuable metal including the following steps: a preparation step of preparing a charge material containing at least lithium (Li) and valu...
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JP2023149666A |
To provide a control method of exhaust gas draft in a drying furnace which is capable of effectively utilizing a high temperature gas in a slag cleaning furnace as drying hot air, with the in-furnace pressure of the drying furnace stabil...
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JP2023149665A |
To provide a method capable of drying a raw material such as copper concentrate, without being restricted by the specifications of a hot blast stove that generates hot air introduced into a drying furnace or the treatment capacity of a t...
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