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WO/2020/041914A1 |
The present invention relates to a system for imparting solubility in an aqueous medium to chemical elements contained in a sulfide ore concentrate having iron, cobalt, nickel, copper, platinum-group metals and other metals considered va...
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WO/2020/044849A1 |
A method for producing a nickel sulfate compound, said method comprising a roasting step for heating a nickel-containing starting material which also contains iron under such conditions, wherein an oxygen partial pressure p(O2) and a sul...
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WO/2020/019919A1 |
Disclosed is a method for the homogeneous precipitation separation of iron and aluminum from a laterite nickel ore acid leaching solution, wherein the present invention belongs to the technical field of nonferrous metal wet metallurgy. T...
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WO/2020/019917A1 |
Disclosed are a method for efficiently recycling iron, scandium, and aluminum from limonite type lateritic nickel ores, comprising: crushing or finely grinding the limonite type laterite nickel ores to obtain ore powder; selectively leac...
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WO/2020/019918A1 |
Disclosed is a method for the homogeneous precipitation separation of nickel, cobalt and manganese from a laterite nickel ore acid leaching solution, wherein the present invention belongs to the technical field of the comprehensive utili...
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WO/2020/013293A1 |
Provided are: an alloy powder that can be obtained from a waste lithium ion battery, wherein the alloy powder can be dissolved easily in an acid solution and enables efficient recovery of valuable metals contained in the alloy powder; an...
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WO/2020/013294A1 |
Provided is a more efficient dry refining process for improving the recovery rate of phosphorus-free valuable metals from waste lithium ion batteries. The present invention provides a method for recovering valuable metals from waste lith...
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WO/2020/004285A1 |
Provided is a method for efficiently separating copper from nickel and cobalt from a sulfide containing nickel and cobalt together with copper. The present invention is a method for separating copper from nickel and cobalt, the method co...
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WO/2019/244527A1 |
This method for producing a nickel sulfate compound comprises: a conversion step (S1) for converting at least a part of a nickel-containing raw material (10) into a nickel sulfate compound by treating the nickel-containing raw material (...
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WO/2019/203680A1 |
The invention relates to the field of non-ferrous metallurgy, in particular to a method for processing laterite nickel ores with recovery of nickel and cobalt. In a method involving grinding of the ore, roasting of the ore in a reducing ...
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WO/2019/197192A1 |
Process for the recovery of transition metal from spent lithium ion batteries containing nickel, wherein said process comprises the steps of (a) heating a lithium containing transition metal oxide material to a temperature in the range o...
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WO/2019/186478A1 |
A process for the dissolution of a metallic element from a metal-bearing source material, said process including the steps of dissolving the metallic element from a metal-bearing source material with an acidified ferric chloride solution...
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WO/2019/181088A1 |
In a used plating medium, a metal surface layer is dissociated from a core and dissolved with an acid to thereby give an aqueous mixed metal solution 13 containing Ni ions 9 and Sn ions 11. Then, the aqueous mixed metal solution 13 is pa...
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WO/2019/174103A1 |
A method for producing nickel sulfate and cobaltous sulfate by purification of a laterite nickel ore sulfuric acid leaching solution and silica gel chelate resin, comprising: 1) grinding laterite nickel ores (limonite type, transition la...
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WO/2019/172392A1 |
Provided is a method for increasing Ni yield of a sulfide product and lowering iron grade F. This method comprises: step (S10) for subjecting a Ni/Co-containing aqueous sulfuric acid solution (1) to a sulfurization reaction with H2S gas ...
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WO/2019/136792A1 |
A method for separating nickel and cobalt from a solution, comprising the following steps: after acid leaching the cathode material of a waste lithium ion battery, obtaining a solution containing nickel and cobalt; adjusting the pH value...
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WO/2019/138316A1 |
The invention provides a process for recovering copper (Cu) and cobalt (Co) from a copper–cobalt containing material sample, and which is adapted for treating both low and high grades of copper–cobalt source material, such as Cu-Co s...
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WO/2019/132280A1 |
A device for measuring the reduction rate of nickel ore is provided. The device for measuring the reduction rate of nickel ore, according to the present invention, comprises: a dry reduced iron ore collection device including a reduced i...
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WO/2019/124819A1 |
A nickel ore drying device for nickel hydrometallurgy is provided. The nickel ore drying device for nickel hydrometallurgy, according to the present invention, comprises: a drying furnace for removing crystal water of nickel ore by raisi...
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WO/2019/124977A1 |
The present invention relates to a multistage reduction method for nickel ore and, more specifically, to a multistage reduction method for nickel ore, comprising: a first reduction step of preliminarily reducing nickel iron-containing ra...
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WO/2019/124015A1 |
Provided is a method for separating copper from nickel and cobalt, which can efficiently and selectively separate copper from nickel and cobalt in a substance containing copper, nickel, and cobalt in a waste lithium ion battery, etc. In ...
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WO/2019/123972A1 |
Provided is a production method whereby coarse particles of a so-called high-purity nickel powder, which contains a small amount of impurities and, in particular, has a low sulfur content, are formed from a nickel sulfate ammine complex ...
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WO/2019/108120A1 |
The present disclosure concerns amethod of producing an activated negative electrode powder for use in nickel-metal hydride (NiMH) batteries, the method comprising the steps: a) providing at least one previously cycled NiMH battery; b) i...
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WO/2019/102652A1 |
Provided is a dezincification system for aqueous nickel sulfate solutions, which is capable of stably maintaining the zinc content in a nickel/cobalt mixed sulfide low. This dezincification system for aqueous nickel sulfate solutions is ...
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WO/2019/102765A1 |
Provided is a treatment method whereby it becomes possible to recovery copper, nickel and cobalt, which are valuable metals, contained in a lithium ion battery waste and to separate copper, nickel and cobalt from one another effectively....
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WO/2019/093053A1 |
Provided is a leaching treatment method for nickel oxide ore, which is capable of effectively reducing the usage of sulfuric acid, while maintaining the high nickel leaching rate. A leaching treatment method according to the present inve...
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WO/2019/090389A1 |
A process for producing high purity nickel sulfate, preferably having a purity of ≥99.8%, more preferably ≥99.98%, suitable for use in battery manufacture or nickel plating is described. The process involves selectively removing non-...
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WO/2019/081432A1 |
A process is divulged for the recovery of metals from a metal-bearing material containing, in oxidized form, more than 1% of Co, a total of Co and Ni of more than 15%, and more than 1% Mg, comprising the step of: - smelting said metal-be...
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WO/2019/082533A1 |
Provided is a method for separating copper, nickel, and cobalt, the method being capable of efficiently and selectively separating copper, nickel, and cobalt from alloys containing copper, nickel, and cobalt, such as highly corrosive all...
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WO/2019/082532A1 |
Provided is a method for separating copper from nickel and cobalt with which it is possible to selectively and efficiently separate copper, as well as nickel and cobalt, from an alloy including copper, nickel, and cobalt such as an alloy...
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WO/2019/071798A1 |
A method for producing smelting slag from nickel, comprising the following steps: S1, mixing furnace slag: adding nickel smelting slag into a smelting reaction device, and adding a calcium-series mineral and an additive; stirring, heatin...
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WO/2019/071797A1 |
A method for producing mixed slag containing nickel and iron, comprising the following steps: S1. furnace slag mixing: adding nickel smelting slag into a reaction apparatus, and adding one or more of lead smelting slag, blast furnace sla...
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WO/2019/071796A1 |
A method for recovering valuable components from mixed slag containing nickel and iron, comprising: S1, furnace slag mixing: adding nickel smelting slag into a smelting reaction device, adding one or more from among lead smelting slag, b...
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WO/2019/071787A1 |
A method for recovering valuable components from smelting slag containing nickel, comprising: adding nickel smelting slag into a reaction device, adding a calcium-series mineral and an additive, forming mixed slag, heating the mixed slag...
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WO/2019/071792A1 |
A production method based on smelting reduction of slag containing zinc and iron. The method comprises the following steps: S1, adding zinc smelter slag into a thermal insulation apparatus or a smelting reaction apparatus allowing slag t...
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WO/2019/064996A1 |
Provided is a method for separating copper from nickel and cobalt, which is capable of efficiently and selectively separating copper, and nickel and cobalt from an alloy containing copper, nickel and cobalt such as a highly anticorrosive...
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WO/2019/058327A1 |
A process for nickel concentration and extraction from non-sulfidic iron-bearing nickeliferous resources is disclosed. The process includes an atmospheric acid-based leaching treatment of the non-sulfidic iron-bearing nickeliferous resou...
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WO/2019/049593A1 |
Provided is a wet metallurgy method for a nickel oxide mineral ore, the method being capable of effectively increasing the pH of a processing liquid and capable of efficiently facilitating a sulfurization reaction using the processing li...
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WO/2019/045161A1 |
Presented is a method for economically smelting nickel from nickel laterite ores by a combination of wet and dry processes, comprising the steps of: preparing a dissolution solution by dissolving, in a strong acid, a hydroxide mixture co...
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WO/2019/035319A1 |
A leaching treatment method of nickel oxide ore is provided which enables effectively reducing the amount used of sulfuric acid while maintaining a high nickel leaching rate. In this leaching treatment method, leaching treatment is perfo...
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WO/2019/028497A1 |
A process is disclosed for the recovery of a metal from a pyrite-bearing material. The process comprises thermally decomposing the pyrite-bearing material so as to produce a material comprising pyrrhotite (FeS). The process also comprise...
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WO/2018/234855A1 |
This invention relates to an integrated process for recovering value metals from sulphide ore which includes the steps of bulk sorting 16 and screening 24/28 crushed ore. The sorted/screened coarse ore stream is ground and classified 20 ...
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WO/2018/227237A1 |
A method is disclosed for the recovery of cobalt, nickel and manganese from ores, concentrates, tailings, scrap alloys and spent batteries in an oxidic form, which is suitable for direct use in the manufacture of lithium-ion batteries, i...
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WO/2018/223193A1 |
A processes is disclosed for the recovery of cobalt, lithium and associated metals from lithium-ion batteries, comprising (i) shredding and pulverising the batteries under an inert atmosphere, (ii) leaching the batteries with sulphuric a...
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WO/2018/216513A1 |
The purpose of the present invention is to provide, in a method for producing a metal or alloy by forming pellets from an oxide ore, a method for smelting an oxide ore, wherein a high-quality metal can be produced with high productivity ...
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WO/2018/211996A1 |
This method for processing oil combustion ash includes: a slurry production step (S10) for adding water to oil combustion ash containing vanadium and nickel to produce a combustion ash slurry; a magnetic separation step (S20) for magneti...
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WO/2018/194165A1 |
Provided is a smelting method whereby reduction by a carbonaceous reducing agent is performed to obtain a reduced substance using as a raw material a nickel oxide ore or other metal oxide containing oxidized nickel or the like, for examp...
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WO/2018/188537A1 |
Disclosed are a method for comprehensively recycling a copper-nickel sulfide ore and a system thereof. Under normal pressure conditions, a copper-nickel sulfide ore concentrate can be directly leached out or a low nickel matte can be obt...
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WO/2018/181816A1 |
A lithium ion battery scrap treatment method including a calcination step, a crushing step, and a sieving step, followed by: a leeching step in which Cu is leeched an acidic solution and at least some Cu remains as a solid; an Fe/Al-remo...
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WO/2018/181608A1 |
This lithium recovery method separates sodium from a lithium-containing solution including lithium ions and sodium ions and recovers lithium. The lithium recovery method has a solvent extraction step including: an at least three-stage ex...
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