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Matches 1 - 50 out of 3,591

Document Document Title
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...  
WO/2017/194462A1
The invention relates to the production of liquid melts, wherein - a bulk material with a grain size of less than 5 mm is provided, - the bulk material is fed to a preheater and is preheated to a temperature of at least 500°C, - the bul...  
WO/2017/188344A1
The present invention addresses the problem, in methods for producing a metal or alloy by reducing a mixture that contains an oxide ore, of providing an oxide ore smelting method with good productivity and efficiency. The present inventi...  
WO/2017/183666A1
Provided is a smelting method for producing metal by reducing a mixture that includes an oxide ore such as nickel oxide ore, wherein it is possible to improve productivity by raising the metal recovery rate as well as to inexpensively an...  
WO/2017/175525A1
[Problem] To provide a gas supply device with which it is possible to supply bubbles having a small diameter into a liquid in a stable manner. [Solution] A gas supply device 1 for supplying bubbles G into a liquid L, wherein the gas supp...  
WO/2017/159837A1
Provided is a countercurrent-type direct-heating heat exchanger in which wear of a container due to a heating subject fluid can be inhibited. The countercurrent-type direct-heating heat exchanger (A) is provided with a container (10), a ...  
WO/2017/159745A1
This processing method for lithium ion battery scrap includes: a leaching step for leaching lithium ion battery scrap, performing solid-liquid separation on the leachate obtained as a result of the leaching, and obtaining a first separat...  
WO/2017/157092A1
A method for producing ferronickel by means of a high efficiency step forking type rotary reduction furnace in a direct reduction manner, comprising the steps of: sieving laterite nickel ore raw material, adding pulverized coal and an ad...  
WO/2017/159743A1
This processing method for lithium ion battery scrap includes: a leaching step for leaching a lithium ion battery and obtaining a leachate; an aluminum removal step for neutralizing the leachate to a pH of 4.0-6.0 and then performing sol...  
WO/2017/153634A1
In a method for separating metals from metal borate precipitates obtained from recovering metals from solutions, solid metal borate precipitate is heated under reducing conditions to a temperature at which the metal is separated from the...  
WO/2017/145892A1
Provided is a production method that uses industrially inexpensive hydrogen gas and is for forming coarse grains of highly pure nickel powder from a nickel sulfate ammine complex solution using a nickel micropowder. The method for produc...  
WO/2017/145448A1
Provided is a neutralization method performed for discharging process liquid that is generated in a metal-refining process to the outside of the system, wherein the amount used of a neutralizing agent such as slaked lime is reduced, maki...  
WO/2017/142081A1
The purpose of the present invention is to provide a thickener and a control method for the same with which a high concentration slurry, in which the slurry has a high concentration, can be obtained from the base part of the thickener in...  
WO/2017/141693A1
Provided is a method capable of improving the settleability of neutralization precipitate, generated by neutralization, and of reducing floating particles in the supernatant after solid-liquid separation, and also capable of reducing fil...  
WO/2017/138421A1
Provided is a method with which it is possible, when causing a sulfuration reaction to occur from a sulfuric acid acidic solution containing at least nickel through use of a sulfuration agent and generating a sulfide of nickel, to suitab...  
WO/2017/130693A1
Provided is a method for removing residual hydrogen sulfide, whereby hydrogen sulfide remaining in a reaction container can be efficiently removed in a short operation time. The method for removing residual hydrogen sulfide pertaining to...  
WO/2017/117626A1
A method of precipitating a nickel or cobalt containing solid from an acidic solution containing dissolved nickel and/or cobalt comprises contacting the solution with a calcium containing neutralising agent to raise the pH of the solutio...  
WO/2017/110572A1
Provided is a method for removing a sulfidizing agent such as hydrogen sulfide or the like that is dissolved in a sulfidized liquid generated in a wet process for smelting a nickel oxide mineral ore, the method enabling the usage quantit...  
WO/2017/094308A1
Provided is a sulfurizing agent removal method that effectively removes dilute sulfurizing agents such as hydrogen sulfide from large volume solutions more efficiently than in the past. This sulfurizing agent removal method is a method f...  
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...  
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...  
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...  
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...  
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 ...  
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...  
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 ...  
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 ...  
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...  
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)...  
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...  
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...  
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 ...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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 ...  

Matches 1 - 50 out of 3,591