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WO/2017/063076A1 |
Process to decrease silicon content of metal powder produced by hydrogen reduction from ammoniacal ammonium sulphate solutions containing metal ammine complexes, wherein metal (Me) is Ni, Co, or Cu. The process controls the precipitation...
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WO/2017/056626A1 |
Provided is a method for manufacturing nickel powder whereby a reduction in production efficiency due to abrasion of a flash vessel connected to a pressurized container can be suppressed when nickel powder is generated using the pressuri...
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WO/2017/051578A1 |
Provided is a gravity separation device wherein occurrences of shelving, flashing, and the like inside the device can be suppressed, variations in the flow rate of underflow obtained by gravity separation can be minimized and underflow c...
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WO/2017/038589A1 |
Provided is a production process by which a so-called high-purity nickel powder made up of coarse particles and reduced in the content of impurities, in particular, in sulfur content, is produced from a nickel sulfate ammine complex solu...
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WO/2017/031574A1 |
The processes of the present disclosure can comprise feeding a furnace with a raw material chosen from a copper-containing material, a nickel-containing material, a cobalt-containing material and mixtures thereof. These materials can be ...
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WO/2017/029856A1 |
A method for recycling a Ni-based single crystal/unidirectionally solidified superalloy part obtained by providing a thermal barrier coating comprising at least a ceramic on the surface of a Ni-based single crystal/unidirectionally solid...
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WO/2017/024552A1 |
Provided is a method and system for preparing a carbonyl nickel powder using laterite-nickel ore. The method comprises: (1) mixing and pelletizing laterite-nickel ore, high-sulphur coal, and additives to obtain pellets; (2) reducing the ...
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WO/2017/024551A1 |
Provided is a method and system for preparing a carbonyl nickel powder using laterite-nickel ore. The method comprises: (1) mixing and pelletizing laterite-nickel ore, high-sulphur coal, and additives to obtain pellets; (2) reducing the ...
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WO/2017/020793A1 |
A cobalt or nickel enrichment method comprises: performing a reduction process on a cobalt mine or nickel mine; and then obtaining, by a magnet, enriched cobalt or nickel. The method addresses problems of high power consumption and a low...
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WO/2016/205906A1 |
This invention provides a process to thermally upgrade metal-containing ores comprising the following steps: (1) mixing: (i) ore, (ii) from 4 and up to 15% by weight relative to the ore of reducing agent, (hi) sulphur bearing agent, (iv)...
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WO/2016/198976A1 |
A method of integrated chemical and bacterial leaching of a base metal from a mineral is disclosed. The method includes leaching a base metal from a mineral with an ammoniacal thiosulfate chemical leaching solution having a pH from about...
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WO/2016/194658A1 |
[Problem] To provide an aqueous cobalt chloride solution purification method capable of efficiently removing impurities from a cobalt salt solution. [Solution] A method for bringing metallic nickel into contact with an aqueous cobalt chl...
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WO/2016/194709A1 |
Provided is a method, in preliminary neutralization of leach slurry generated in a hydrometallurgical process for nickel oxide ore, that is capable of promoting precipitation of iron contained in said leach slurry and limiting increases ...
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WO/2016/194659A1 |
[Problem] To provide an aqueous cobalt chloride solution purification method capable of efficiently removing impurities from a cobalt salt solution. [Solution] A method for bringing metallic nickel into contact with an aqueous cobalt chl...
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WO/2016/180624A1 |
The above mentioned invention describes a process for removing arsenic and/or antimony sulfides from copper, nickel and/or gold containing ore particles. Ore particles are fed into a reactor, wherein a fluidizing gas is injected into the...
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WO/2016/181673A1 |
Provided is a method by which it is possible, in a wet-process method for refining nickel oxide ore, to efficiently reduce the amount of acid used in the leaching step and the amount of neutralizing agent used in the final neutralization...
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WO/2016/171579A1 |
The invention relates to the field of metallurgy and can be used for processing high-magnesia lateritic nickel ores so as to directly produce ferronickel. In the method, the following steps are carried out: mixing the ore with a solid re...
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WO/2016/165027A1 |
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...
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WO/2016/159001A1 |
This method for removing iron from an iron-containing solution removes iron from an iron-containing solution that includes iron ions, wherein in a mixture obtained by adding a lithium ion cell positive electrode material that contains ma...
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WO/2016/159002A1 |
This method for removing copper from lithium ion battery scrap is a method for removing copper from lithium ion cell scrap that contains copper, wherein the method comprises: a leaching step for adding the lithium ion battery scrap to an...
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WO/2016/157629A1 |
Provided is a method for manufacturing a nickel and cobalt mixed sulfide that is capable of stabilizing nickel and cobalt concentrations in the sulfidation end solution at low levels and of limiting decreases in nickel and cobalt recover...
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WO/2016/152690A1 |
Provided is a production method that, using an industrially inexpensive H2 gas, generates coarse-grained high-purity Co powder from a sulfuric acid cobalt amine complex solution by using minute Co powder. A production process is for gene...
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WO/2016/141875A1 |
A method of recycling and processing a waste battery. The method comprises the following steps: (1) preparing a waste battery, additionally preparing a slagging agent containing at least 10 wt.% of Si and/or Mn; (2) adding various prepar...
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WO/2016/139858A1 |
Provided is a method for producing nickel sulfide from an acidic sulfuric acid solution containing nickel, which is capable of suppressing particle diameters of nickel sulfide obtained thereby. The present invention is a method for produ...
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WO/2016/137356A1 |
The invention relates to hydrometallurgical methods for processing solutions comprising non-ferrous metals, by precipitating non-ferrous metal hydrates using a magnesium-containing precipitant. The essence of the invention consists in...
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WO/2016/136087A1 |
A wet smelting method for nickel oxide ores from which nickel, cobalt, etc. are recovered is provided with which it is possible to reduce the consumption of an acid in leaching, such as sulfuric acid, and to recover valuable metals such ...
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WO/2016/136069A1 |
Provided is a wet smelting method for nickel oxide ore that is capable of effectively reducing the amount of sulfuric acid used in the leaching step and the amount of a neutralizer such as slaked lime used in the final neutralization ste...
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WO/2016/136068A1 |
Provided is a smelting method whereby a reaction for reducing pellets, said pellet being formed by using a saprolite ore as a starting material, can be effectively conducted and thus an iron/nickel alloy having a nickel grade of, for exa...
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WO/2016/129560A1 |
Provided are a sulfuric acid adding facility and an operation method therefor which enable an increase in the maximum capacity and the operation rate of a sulfuric acid supply pump provided in the sulfuric acid adding facility. In a sulf...
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WO/2016/116479A1 |
This invention relates to a process for the recovery of cobalt ions and tungstic acid and/or its derivatives from aqueous solutions, such as in particular the spent catalytic waters derived from processes for the oxidative cleavage of ve...
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WO/2016/117051A1 |
Provided are a mineral slurry manufacturing facility and a mineral slurry manufacturing method by which mineral slurries having different solid component ratios can be uniformly mixed, and large quantities of mineral slurry can be contin...
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WO/2016/113940A1 |
Provided is a countercurrent type direct-heating heat exchanger having high heat exchange efficiency. This countercurrent type direct-heating heat exchanger A, which causes a heating subject fluid 1 and a heat medium 2 to flow counter to...
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WO/2016/113755A1 |
The present invention relates to a one step environment friendly process for the preparation of Ni and Fe-Ni has been established, wherein the said process involves highly reactive low temperature non thermal hydrogen plasma for the prod...
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WO/2016/113049A1 |
Disclosed is a method for reducing nitrogen oxides in the exhaust gas of an entrained-flow treatment plant in which a material is subjected to a thermal treatment; at least some of the thermal energy used for said treatment is supplied b...
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WO/2016/114439A1 |
The present invention relates to a method for simultaneously recovering cobalt (Co) and manganese (Mn) from a lithium based battery, the method being capable of simultaneously recovering highly pure cobalt and manganese from a lithium ba...
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WO/2016/108343A1 |
The present invention relates to a method for recovering cobalt and nickel, through a series of steps comprising ion exchange, Fe removal, solvent extraction, and concentration/crystallization, from a waste solution generated during a pr...
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WO/2016/103812A1 |
Provided is a smelting method capable of effectively promoting a reduction reaction on pellets formed using nickel oxide ore as starting material to obtain a ferronickel alloy with a high nickel grade of at least 4%. The present inventio...
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WO/2016/088240A1 |
An apparatus for producing an ore slurry and a process for producing an ore slurry are provided with which it is possible to produce an ore slurry having a high solid content and a high specific gravity, while maintaining a slurry throug...
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WO/2016/080013A1 |
The purpose of the invention is to allow the lifespan of a cone valve to be extended over conventional ones even if used as a check valve when feeding slurry containing highly abrasive coarse particles. A cone valve (1) used as a check v...
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WO/2016/081230A1 |
Disclosed are nickel-containing complexation precursors having high complexation activity for bidentate phosphite ligands. Also disclosed are methods of making the complexation precursors. The disclosed method of generating the nickel-co...
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WO/2016/075368A1 |
The present invention provides a process of treating complex sulfide concentrate, comprising the steps of(a) roasting wet or slurried complex sulfide concentrate in a furnace at a temperature of at least 720°Cto obtain a cal- cine; and ...
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WO/2016/056362A1 |
Provided is a smelting method capable of obtaining an iron-nickel alloy having a high nickel grade of 4 % or higher by effectively facilitating a reduction reaction of pellets formed using a nickel oxide ore as a raw material. The presen...
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WO/2016/052568A1 |
Provided are a leaching method for lithium ion battery scrap that makes it possible to effectively reduce treatment costs and a method for recovering metal from lithium ion battery scrap. This leaching method for lithium ion battery scra...
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WO/2016/052569A1 |
Provided are a leaching method for lithium ion battery scrap that makes it possible to effectively reduce treatment costs and a method for recovering metal from lithium ion battery scrap. This leaching method for lithium ion battery scra...
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WO/2016/024428A1 |
Provided is a chute that achieves a longer service life by improving wear resistance. A chute (1), which is installed at a downward incline to a conveyor (50) that transports objects (g), is provided with a retention means (10), which re...
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WO/2016/024470A1 |
Provided is a nickel recovery method that makes it possible to reduce the amount of nickel remaining in byproducts by recovering nickel from the byproducts of an electro-nickel manufacturing process which uses chlorine leaching, and that...
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WO/2016/017400A1 |
Provided is a method for smelting nickel oxide ore by which, even if the size of lumps is small in a mixture of metal and slag obtained by reducing and heating pellets of nickel oxide ore, it is still possible to effectively separate the...
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WO/2016/017348A1 |
Provided is a method for producing pellets by which, when nickel oxide ore is being pelletized and smelted to produce ferronickel, which is an iron-nickel alloy, it is possible to allow the smelting reaction to proceed effectively and to...
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WO/2016/017347A1 |
Provided is a method for smelting nickel oxide ore by which the occurrence of cracking due to heat shock can be suppressed when nickel oxide ore is pelletized and charged into a smelting step (reduction step). A method for smelting nicke...
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WO/2016/013356A1 |
Provided is a nickel oxide ore smelting method for forming pellets from a nickel oxide ore and performing smelting by reducing and heating the pellets in a smelting furnace, wherein it is possible to make the smelting reaction in the red...
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