Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 1 - 50 out of 3,759

Document Document Title
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...  
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...  

Matches 1 - 50 out of 3,759