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Matches 1 - 50 out of 3,821

Document Document Title
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, ...  
WO/2018/089595A1
A process for water removal and/or recycling of sodium sulfate and/or sodium dithionate containing liquors derived from processing cobalt resource material essentially free of lithium comprising the steps of precipitation of cobalt as co...  
WO/2018/076993A1
A method for preparing nickel sulfate, manganese sulfate, lithium sulfate, cobalt sulfate, and tricobalt tetroxide from battery waste, relating to comprehensive utilization of battery waste, and in particular, to a method for producing b...  
WO/2018/079101A1
Provided is a hydrometallurgical method for a nickel oxide ore in which, even in the case where a nickel oxide ore having a high carbon content is to be treated, iron can be efficiently inhibited from leaching, the amount of sulfuric aci...  
WO/2018/072029A1
This application pertains to methods of recovering metals from metal sulfides that involve contacting the metal sulfide with an acidic sulfate solution containing ferric sulfate and a reagent that has a thiocarbonyl functional group, whe...  
WO/2018/073145A1
The present invention concerns the recovery of cobalt from cobalt-bearing materials, in particular from cobalt-bearing lithium-ion secondary batteries, from the spent batteries, or from their scrap. A process is divulged for the recovery...  
WO/2018/073891A1
A ferronickel production method characterized in that saprolite is melted and ferronickel is obtained by charging saprolite and a reducing agent from the upper part of a furnace body in a smelting furnace provided with a lance that is im...  
WO/2018/070413A1
The purpose of the present invention is to improve the recovery of small size ores by reducing the amount of loss of small size ores in a washing/separation step. This nickel ore washing device (100) washes the ore slurry (S) of nickel o...  
WO/2018/066638A1
Provided is a hydrometallurgical method for refining nickel oxide ore, the method being capable of improving production efficiency by suppressing premature blockage of a filtration device. The method comprises: a leaching step for acid-l...  
WO/2018/061715A1
Provided is an oxygen blow pipe which can be effectively inhibited from being corroded and being burned due to high-concentration of oxygen, and can efficiently supply oxygen, during a leaching treatment which is performed using an acid ...  
WO/2018/061714A1
Provided is a method for effectively supplying oxygen to a slurry with which a reaction container is loaded, and thereby effectively causing a leaching reaction, during a leaching treatment which is performed using an acid such as sulfur...  
WO/2018/011469A3
The invention relates to a process for manufacturing mechanically durable chromium and iron bearing agglomerates with desired content of manganese, nickel and molybdenum. The invention also relates to chromium and iron bearing agglomerat...  
WO/2018/011469A2
The invention relates to a process for manufacturing mechanically durable chromium and iron bearing agglomerates with desired content of manganese, nickel and molybdenum. The invention also relates to chromium and iron bearing agglomerat...  
WO/2018/007297A1
The present disclosure provides a process for selectively separating a first heavy metal such as copper from a liquid medium containing at least the first heavy metal in dissolved form, by: (a) contacting the liquid medium with a solid s...  
WO/2017/206528A1
A method using exhaust gas to recover nickel from a lateritic nickel ore. The method comprises: crushing and grinding a serpentinized nickel ore, then mixing with a magnetic nickel tailing to obtain a mixed ore; homogeneously mixing a hy...  
WO/2017/207684A1
The present invention relates to a method for converting a waste material from sulphide ore based nickel production to a ferroalloy product by converting it to nickel pig iron by drying, calcining and reduction with under-stoichiometric ...  
WO/2017/199451A1
The risk of a valve seat being damaged is greatly reduced even when this cone valve is used as a non-return valve when delivering a slurry containing highly abrasive, coarse particles, such as a slurry of nickel oxide ore. The cone valve...  
WO/2017/199994A1
Provided is an angle valve capable of effectively suppressing abrasion of the interior of the angle valve with slurry flowing therethrough. The angle valve 1 according to the present invention comprises: a valve body 11 which has a horiz...  

Matches 1 - 50 out of 3,821