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Matches 1 - 50 out of 4,072

Document Document Title
WO/2020/181607A1
A method for extracting ions from an ore solution, comprising the following steps: (1) after a P204 organic phase is subject to soda soap treatment, adding nickel sulfate therein for a nickel soap reaction, till sodium ions in the organi...  
WO/2020/183728A1
Provided is a production method using industrially inexpensive hydrogen gas and microscopic nickel powder to generate coarse particles of nickel powder containing a small amount of impurities from an ammine nickel sulfate complex solutio...  
WO/2020/181745A1
Provided is a method for efficiently separating cobalt/nickel magnesium manganese from crude cobalt/nickel salt raw material. Using crude cobalt/nickel salt as a raw material, a catalyst is added after slurrying; a high-temperature and h...  
WO/2020/181606A1
A method for leaching laterite nickel ore. The leaching method comprises the following steps: 1) concentrating an original laterite nickel ore pulp having a particle size of less than 0.074mm into a laterite nickel ore pulp having an und...  
WO/2020/171009A1
Provided is a lithium recovery method whereby highly pure lithium can be recovered from a fluid to be processed that has lithium and an inorganic salt dissolved therein. The lithium recovery method has: a concentration step S8 in which t...  
WO/2020/166735A1
Introduced is an economical method, using a combination of wet and dry processes, for smelting nickel from nickel concentrate, comprising the steps of: leaching, with sulfuric acid, sulfide concentrate containing nickel, so as to separat...  
WO/2020/157898A1
A medium to be bombarded with a nickel-containing raw material is introduced into a roasting furnace for roasting the nickel-containing raw material, and then the nickel-containing raw material is roasted while grinding the nickel-contai...  
WO/2020/149122A1
Provided is a wet smelting method whereby the amount of nickel coprecipitated with impurities is reduced and nickel yield can be increased. The present invention provides a method for manufacturing a nickel/cobalt mixed sulfide, the me...  
WO/2020/137995A1
A method for recovering at least cobalt, among valuable metals of cobalt and nickel, from an acidic solution that is produced by subjecting a waste material containing a positive electrode material of a lithium ion secondary battery to a...  
WO/2020/137997A1
Provided is a method for recovering at least cobalt from among the valuable metals cobalt and nickel from an acid solution containing cobalt ions, nickel ions and impurities, obtained by subjecting waste containing positive electrode mat...  
WO/2020/125000A1
Disclosed is a method for separating cobalt from a cobalt and manganese carbonate mixture. The method comprises the following steps: S1, dissolving a cobalt and manganese carbonate mixture using an inorganic acid, in order to obtain an a...  
WO/2020/101089A1
The present invention relates to a waste battery recycling method for recovery of lithium carbonate, nickel, and cobalt from waste batteries.  
WO/2020/093365A1
Disclosed is a wet metallurgy method for treating low-quality lateritic nickel ore using atmospheric pressure and elevated pressure combined acid leaching, comprising the following steps: formulating a transition ore pulp, mixing the hea...  
WO/2019/244091A3
This invention relates to a method for processing nickel laterite ore, including the steps of obtaining a mined laterite ore from a mining operation 42; and feeding the ore through a bulk sorter 44 comprising a sensor arrangement and a d...  
WO/2020/093366A1
Provided is a rotary reaction device for iron removal from low-grade nickel laterite ore by means of sulfuric acid pressure leaching, comprising: a reactor barrel, a thermal expansion device, a rotary joint and a drive mechanism; one end...  
WO/2020/090690A1
This method is for treating a lithium ion secondary battery positive electrode active substance waste product that contains cobalt, nickel, manganese and lithium, and involves: a carbon mixing step in which a powder-form positive electro...  
WO/2020/080035A1
Provided is a method for removing manganese in which manganese-oxidizing bacteria are used, wherein the method involves stably and efficiently removing manganese from drainage water or another such aqueous solution that contains manganes...  
WO/2020/078779A1
The present invention 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 deposi...  
WO/2020/075288A1
A method for processing nickel oxide ore, the method having an oxidation roasting step for converting FeOOH included in nickel oxide ore to Fe2O3 or Fe3O4, and a sulfuric acid roasting step for heating and roasting the roasting product o...  
WO/2020/073410A1
A method for resin extraction of nickel and cobalt from low-grade laterite nickel ore leaching liquid, comprising the following steps: (1) subjecting low-grade laterite nickel ore leaching liquid to copper removal resin column adsorption...  
WO/2020/073411A1
A method for extracting nickel, cobalt, and iron from a low-grade laterite nickel ore: respectively treating a transitional layer laterite nickel ore and a limonite layer laterite nickel ore, the iron grade of an iron ore concentrate pro...  
WO/2020/061639A1
A method for recovering NiSO4.6H2O crystals from a nickel rich organic phase is provided. The method includes contacting a nickel rich organic phase with an aqueous strip solution of sufficient H2SO4 concentration to extract nickel from ...  
WO/2020/062964A1
Disclosed in the present invention is a method for treating low-magnesium limonite type laterite nickel ore. The method specifically comprises the following seven steps: ore grinding pretreatment, nitric acid pressure leaching, neutraliz...  
WO/2020/059630A1
The purpose of the present invention is to provide a method for smelting oxide ore, the method being capable of efficiently producing high quality metal. The present invention pertains to a smelting method for producing a metal such as f...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
WO/2019/081432A8
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/2019/244527A1
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 (...  
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 ...  
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...  
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...  
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...  
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....  

Matches 1 - 50 out of 4,072