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Matches 1 - 50 out of 3,884

Document Document Title
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...  
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 ...  
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...  
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...  
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...  
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...  
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...  
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 ...  
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 ...  
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...  
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 ...  
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....  
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...  
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-...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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 ...  
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...  
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...  
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 ...  
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...  
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...  
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...  
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...  
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...  
WO/2018/181607A1
A lithium recovery method that, when performing a sintering step, a crushing step, and a sieving step on lithium ion battery scrap, in said order, includes between the sintering step and the crushing step, between the crushing step and t...  
WO/2018/174148A1
Provided is a method for smelting a metal oxide ore for obtaining a metal sulfide, wherein the method makes it possible to efficiently recover a fine metal sulfide included in an overflow solution and reduce the recovery cost of metal co...  
WO/2018/163544A1
Provided is a sulfuric acid adding facility having a configuration in which a drain discharge line is connected to a pump head of a diaphragm pump, wherein the occurrence of trouble in the drain discharge line caused by vibration of the ...  
WO/2018/155114A1
Provided is a method capable of reducing chromium quality in a nickel-containing sulfide produced by adding a sulfurizing agent to a nickel-containing aqueous sulfuric acid solution. The present invention pertains to a method for produci...  
WO/2018/147146A1
Provided is a smelting method in which, for example, a metal oxide such as a nickel oxide ore including nickel oxide is used as a source material and is reduced with a carbonaceous reducing agent to obtain a reduced product, with which m...  
WO/2018/147145A1
Provided is a smelting method in which, for example, a metal oxide such as a nickel oxide ore including nickel oxide is used as a source material and is reduced with a carbonaceous reducing agent to obtain a reduced product, with which m...  
WO/2018/143121A1
Provided is sulfurization reaction facility capable of reducing the transfer, to a washing column, of unreacted hydrogen sulfide gas included in a process liquor following sulfurization, and capable of lowering the amount used of an alka...  
WO/2018/122465A1
Described is a method for producing nickel containing indurated chromite pellets. The method comprises providing a ground mixture containing iron and chromium containing material and optionally carbon and optionally additives;providing n...  
WO/2018/113477A1
Provided is a method for recovering cobalt and lithium from a positive electrode material of a spent lithium cobalt oxide battery. Sodium hydrogen sulphate is mixed with the positive electrode material of the spent lithium cobalt oxide b...  
WO/2018/117771A1
The present invention relates to a method for recovering nickel and cobalt from a nickel, iron, and cobalt-containing raw material. According to the present invention, high concentrations of valuable metals, such as nickel and cobalt, ca...  
WO/2018/101855A1
The invention relates to the field of non-ferrous metallurgy, and more particularly to a method for processing nickel laterite ores resulting in the direct production of ferronickel in the form of metal granules. Processing nickel lateri...  
WO/2018/101069A1
The present invention improves the nickel recovery rate in a dezincing step for removing zinc contained in a nickel oxide ore in wet metallurgy that uses high pressure acid leaching of the ore. A wet metallurgy method comprising: a leach...  
WO/2018/092694A1
Provided is a method for removing manganese which can efficiently remove manganese contained in discharged water generated in an HPAL process, while effectively reducing the amount of a chemical agent such as a neutralizer used therein, ...  

Matches 1 - 50 out of 3,884