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JP2024031543A |
The present invention provides a method capable of restoring the metal element leaching ability of a deep eutectic solvent used for leaching metal elements from ores containing metal elements. [Solution] A method for regenerating a hydro...
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JP7442891B1 |
An object of the present invention is to provide a method for treating lithium ion battery waste with an excellent recovery rate of desired valuable metals such as nickel and cobalt. [Solution] A method for processing lithium ion battery...
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JP7442872B2 |
A method for recycling lithium batteries containing the steps: (a) digesting comminuted material (10), which contains comminuted components of electrodes of lithium batteries, using concentrated sulphuric acid (12) at a digestion tempera...
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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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JP2024508529A |
The present invention particularly relates to a method for producing a coprecipitate containing nickel, manganese and/or cobalt, and a coprecipitate produced by the method. The method may be a method of producing a coprecipitate comprisi...
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JP7439087B2 |
The present disclosure 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 salts of nickel and/or cobal...
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JP7438436B1 |
The present invention provides a Ni-based alloy and a manufacturing method that comprehensively considers the control of the composition and structure of nonmetallic inclusions and has a healthy surface with no defects. [Solution] The fo...
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JP7438437B1 |
The present invention comprehensively considers the control of the composition and structure of nonmetallic inclusions, and provides a Ni-based alloy and a manufacturing method that have a sound surface texture and mechanical properties ...
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JP2024024462A |
[Problem] To provide a control method for controlling the timing of adding limestone to a pre-neutralization step at the start of adding sulfuric acid to an autoclave, and reaching a target pH more quickly. [Solution] A pH control method...
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JP2024024163A |
The present invention provides a processing method for obtaining a solution containing nickel and/or cobalt from a waste battery. [Solution] 1) A pretreatment step in which waste batteries are made harmless and crushed to obtain a crushe...
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JP2024507474A |
The present invention relates to a method for producing a cathode active material precursor having a desired active material target ratio for use in or in the manufacture of a lithium ion secondary cell.
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JP2024018929A |
[Problem] To reduce the amount of neutralizing agent used in a hydrometallurgical process of nickel oxide ore without reducing the actual yield of nickel. [Solution] A leaching step S4, a pre-neutralization step S5, and a leaching slurry...
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JP2024014396A |
[Problem] To provide a method for recovering valuable substances with a high recovery rate. [Solution] A physical sorting step in which a part of C is separated by physical sorting from a valuable substance-containing material containing...
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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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JP2024014004A |
[Challenge] CO2Provided is a method for smelting nickel-containing oxide ore in which the amount generated is reduced and the nickel recovery rate is high. [Solution] The present invention is a method for smelting nickel-containing oxide...
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JP2024013276A |
[Problem] To provide a method capable of stably leaching limonite ore, which is generated in a saprolite mine and whose Fe grade is known and whose Mg grade is unknown. [Solution] A method for preparing low-grade Ni oxide ore, which uses...
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JP7425419B1 |
The present invention provides a method for removing organic impurities from an organic solvent containing impurities. [Solution] After adjusting the viscosity of an organic solvent containing impurities in a viscosity adjustment step S2...
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JP7423910B2 |
To provide a method for recovering valuable resources from waste batteries such as used lithium ion batteries and nickel-metal hydride batteries, which can improve the recovery efficiency of the valuable resources while suppressing deter...
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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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JP2024503403A |
The method for recovering transition metals from a lithium secondary battery of the present invention includes the steps of preparing a positive electrode active material from a positive electrode of a lithium secondary battery, and addi...
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JP2024010511A |
[Problem] In a method for producing ferronickel by reducing a mixture containing nickel oxide ore, high-quality ferronickel can be produced using CO2 while reducing smelting costs.2To provide a technology that can be effectively manufact...
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JP2024010512A |
[Problem] In a method for producing ferronickel by reducing a mixture containing nickel oxide ore, high-quality ferronickel can be produced using CO2 while reducing smelting costs.2To provide a technology that can be effectively manufact...
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JP2024010510A |
[Problem] In a method for producing ferronickel by reducing a mixture containing nickel oxide ore, high-quality ferronickel can be produced using CO2 while reducing smelting costs.2To provide a technology that can be effectively manufact...
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JP2024010514A |
[Problem] In a method for producing ferronickel by reducing a mixture containing nickel oxide ore, high-quality ferronickel can be produced using CO2 while reducing smelting costs.2To provide a technology that can be effectively manufact...
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JP2024010513A |
[Problem] In a method for producing ferronickel by reducing a mixture containing nickel oxide ore, high-quality ferronickel can be produced using CO2 while reducing smelting costs.2To provide a technology that can be effectively manufact...
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JP7420799B2 |
The present disclosure 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 depos...
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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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JP7420203B2 |
To provide a method for efficiently obtaining a solution containing nickel and/or cobalt, from an alloy containing nickel and/or cobalt, and copper of a waste lithium ion battery or the like.An alloy treatment method for obtaining a solu...
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JP2024502269A |
A method for recovering valuables from energy storage devices (eg, used rechargeable lithium batteries, particularly those using nickel-based materials or nickel and cobalt-containing cathode materials) is described. In particular, the p...
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JP7417341B2 |
A method of recycling wastes of an HSS processing process includes: a pre-treating step of pre-treating the wastes of the HSS processing process; a primary melting step of forming a primary melt by primarily melting at least one of ferro...
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JP2024004599A |
[Problem] In a box-shaped reduction furnace in which a heat treatment section and a storage section for the object to be treated are connected, the object to be treated can be efficiently taken in and out while suppressing the temperatur...
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JP7415369B2 |
To provide a smelting method of an oxide ore capable of improving a grade of an obtained metal and capable of efficiently producing a high-quality metal, in a smelting method that produces a metal through reducing a mixture including an ...
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JP2024005316A |
The present invention provides a method for producing an aqueous nickel chloride solution that can maintain high dissolution efficiency. [Solution] A method for producing an aqueous nickel chloride solution includes a raw material chargi...
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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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JP2024501853A |
By separating valuable metal ions using the selective back-extraction techniques described herein, manganese, cobalt, A hydrometallurgical solvent extraction process is provided to recover valuable metal ionic species, such as either nic...
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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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JP7409010B2 |
To provide a smelting method for a nickel oxide ore capable of enhancing a grade of a metal to be obtained, and capable of efficiently producing a high-quality metal.A smelting method for a nickel oxide ore is configured to reduce a nick...
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JP2023183355A |
To provide a recycled cathode material that can be manufactured from an end-of-life lithium-ion secondary battery with less environmental impact and low recycling costs, and has excellent performance comparable to that of normal lithium-...
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JP7404801B2 |
To provide a method for suppressing an adverse effect on a post-process caused by a residue of an oxidizer added for oxidative decomposition of a thiosulfuric acid.A production method of a nickel sulfate includes: a removal step of apply...
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JP2023553863A |
Described herein are methods for recycling elements such as lithium and/or nickel from solution, such as recovering reusable lithium and nickel from waste streams produced by delithiation of lithium nickel oxide materials. A method is di...
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JP7403024B1 |
The present invention provides a ferronickel alloy that has a good shape for use as a raw material for stainless steel and special steel, has high purity, and in particular makes effective use of a trace amount of sulfur. [Solution] In t...
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JP2023553314A |
A process is provided for performing sequential steps of hydrometallurgical value extraction using the products of a carbon recovery and electrolytic reagent production process. In electrolytic treatment, acid leachate and alkali hydroxi...
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JP2023180318A |
To provide a method for smelting a nickel oxide ore capable of efficiently producing a valuable metal of a high quality (high grade) in a smelting method for producing a valuable metal by reducing pellets containing nickel oxide ores.A m...
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JP2023180167A |
To provide a rotary kiln operation method which is capable of heating an additive material to be added in the middle of a rotary kiln.Provided is a rotary kiln operation method in which scoop feeders are provided between both end parts i...
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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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JP7399586B2 |
To inexpensively and efficiently collect valuable elements, such as oxides of Co, Ni and Li from a collected material including Al2O3.A method for collecting valuable elements comprises a mixing step of mixing a collected material from a...
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JP7398080B2 |
To provide new rare metal exudation methods and rare metal separating methods.This rare metal exudation method includes putting a material containing a rare metal into a solution comprising an amino acid and conducting hydrothermal treat...
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JP2023552175A |
The impurity removal and treatment method in the recovery process of waste cathode material of lithium batteries includes controlling the flow rate of the leachate and the first alkaline solution of waste cathode material of lithium batt...
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JP2023176596A |
To provide a refining method for nickel oxide ore capable of efficiently producing high-quality valuable metals in the refining method including production of valuable metals by reduction of pellets including the above ore, and to provid...
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