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Matches 1 - 50 out of 9,286

Document Document Title
WO/2018/187855A1
Process for recovering one or both of copper and silver from a sulphidic feed containing iron, arsenic, copper and silver by pressure oxidizing an aqueous feed slurry of the sulphidic feed in a pressure vessel to form a liquid phase cont...  
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/2018/184686A1
The invention relates to a method for removing fluoride from a zinc-containing solution or suspension, in particular a zinc sulfate solution, to a defluoridated zinc sulfate solution obtained by such a method, to the use thereof, and to ...  
WO/2018/184094A1
Methods for niobium concentration from a carbonatite host rock are presented. A basic process for niobium mineral concentration involves performing niobium mineral flotation, on a sufficiently liberated ore slurry, using at one least aro...  
WO/2018/184067A1
A method (10) for preparing a leach feed material, the method (10) comprising the steps of: passing an ore or concentrate containing vanadium and iron to a reduction step (12) to form a reduced ore or concentrate; and passing the reduced...  
WO/2018/186190A1
This device for producing metallic Li is provided with: an extraction electrode which extracts metallic lithium; a counter electrode which faces the extraction electrode; and an accommodation part which includes a non-aqueous solvent for...  
WO/2018/184876A1
The present invention relates to an enhanced process for the recovery of lithium from compositions also containing aluminum. An example of such a metallurgical compositions is the metallurgical slag that is obtained when recycling lithiu...  
WO/2018/184071A1
A method of leaching copper-containing ores, such as chalcopyrite ores, with a leach liquor in the presence of silver and an activation agent that activates silver whereby the silver enhances copper extraction from copper ores.  
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/2018/178416A1
The invention relates to a microorganism belonging to the micro-algae species Tetraselmis mediterranea TmmRU sp. (BEA/IDA/0062), and to the use of said strain to increase the isotope ratio 235U/238U of a solution in relation to a startin...  
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/2018/178374A1
The invention relates to a method for the production of a material of plant origin that is rich in phenolic acids, comprising at least one metal, said method comprising the following steps: a) producing a material of plant origin selecte...  
WO/2018/178371A1
The present invention relates to a method for the production of a solid material comprising manganese, said method including the following steps: a) bringing an aqueous effluent comprising manganese, e.g. at least 5 mg/L, typically at le...  
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/2018/170105A1
A method includes contacting a coal or coal-rich feedstock with an acidic solution to form residual coal and a leachate. The method further includes separating the residual coal from the leachate where the leachate contains rare earth el...  
WO/2018/164578A1
Metal recovery processes for recovering two or more metals from a metal- containing stream are provided. In, Ga, and Mo are recovered in an embodiment using solvent extraction.  
WO/2018/165524A1
A vanadium recovery approach utilizes oil fly ash (OFA), in contrast to coal fly ash, for separation and recovery of vanadium. OFA is first carbon burned to reduce the volume for recycling, and also to provide a fuel for other industrial...  
WO/2018/165312A1
The present disclosure provides a complex having a metal and ligand anionic complex that is counterbalanced by a cation. The complex can be suited for many uses including in a battery.  
WO/2018/161682A1
A method for selectively removing monovalent anion impurities from a sulfuric acid system electrolyte solution is provided. The method comprises: adjusting the concentration of ionized H2SO4 in the electrolyte solution, introducing the e...  
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/2018/158035A1
The invention relates to a method for producing lithium hydroxide (4), in particular high-purity lithium hydroxide, for use in batteries and/or accumulators, from lithium-containing ore and/or mineral, and/or lithium-containing earths (1...  
WO/2018/157424A1
Provided is a method for recycling plutonium from a spent radioactive fuel. The method successively comprises the following steps: extraction: tetravalent plutonium is extracted from an aqueous solution of the spent radioactive fuel usin...  
WO/2018/160817A1
A modified selective recirculation circuit has a loading stage, a stripping stage and a filtering stage for use in processing a feed stream or slurry containing mineral particles. The stripping stage forms a first loop with the loading s...  
WO/2018/158041A1
The invention relates to a method for producing lithium hydroxide (4), in particular highly pure lithium hydroxide, for use in batteries and/or accumulators, from lithium-containing ore and/or mineral and/or from lithium-containing earth...  
WO/2018/157203A1
According to the present invention there is provided a method for the extraction of lithium from one or more lithium-containing ores such as spodumene, the inventive method comprising the steps of: milling said ore/s to a predetermined a...  
WO/2018/157204A1
A sparge (20, 40, 60 and 80) for use in a high-pressure vessel (26) operated at elevated temperatures and having high energy agitators (16) for suspending mineral containing particles in a slurry (36). The sparge (20, 40, 60 and 80) inje...  
WO/2018/160806A1
A system is provided for processing a circulating load in comminution circuit of a mineral separation process for separating mineral particles of interest from an ore, featuring: a coarse screen and an enhanced mineral separation circuit...  
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/2018/152628A1
The present disclosure broadly relates to a process for recovering vanadium, iron, titanium and silica values from vanadiferous feedstocks. More specifically, but not exclusively, the present disclosure relates to a metallurgical process...  
WO/2018/155687A1
The present invention pertains to a metal recovery agent or a metal compound recovery agent that comprises a dried product of cells of a red alga belonging to the order Cyanidiales, a dried product of a material derived from cells of a r...  
WO/2018/145141A1
A combined processing method for the purification of lithium containing solutions, the method comprising the method steps of passing a lithium containing solution to a first purification step in which the lithium containing solution is c...  
WO/2018/145142A1
A combined processing method for the purification of lithium containing solutions, the method comprising the method steps of: a) passing a lithium containing solution to one or more purification steps to produce a substantially purified ...  
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/2018/144807A3
Metal bioremediation and metal mining strategies can include compositions and methods as follows: (1) A composition and a method for treating water for metal remediation or mining can include a cell and a first oligomer of a metal bindin...  
WO/2018/138917A1
Provided is a bismuth purification method for recovering bismuth from a liquid obtained after recovering precious metals from copper electrolysis slime. The method comprises: 1) a neutralization step in which an alkali is added to an aci...  
WO/2018/138427A1
The present invention relates to a process for recovering the platinum and cobalt contained in a membrane electrode assembly (MEA), comprising at least the following successive steps: a) treating the MEA by leaching resulting in a leacha...  
WO/2018/129868A1
A system for extracting vanadium from a leaching solution containing vanadium chromium silicon and for preparing vanadium pentoxide, and a method therefor, the system comprising, in sequence: an impurity removal system, an extraction sys...  
WO/2018/127979A1
Provided is a treatment method for arsenic-containing copper mineral, with which it is possible to efficiently leach copper from an arsenic-containing copper mineral, and with which it is easy to recover arsenic. This treatment method fo...  
WO/2018/112671A1
The invention relates to a cover for covering surfaces for use in the fields of agriculture, plasticulture, mining, waste treatment, inter alia, areas of industry that require a surface to be covered and, in turn, a flow of gas, air and/...  
WO/2018/115268A1
The present invention is related to a polymer membrane for the selective extraction of cobalt (II) ions as well as a method for extracting cobalt (II) ions using said polymer membrane.  
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/2018/108661A1
Process for leaching a noble metal from a source thereof, said process comprising the following steps: -reacting a bromide with hydrogen peroxide in order to generate bromine; -transferring said bromine into a leaching tank; and -adding ...  
WO/2018/109483A1
A method for extracting a rare earth metal from a mixture of one or more rare earth metals, said method comprising contacting an acidic solution of the rare earth metal with a composition which comprises an ionic liquid to form an aqueou...  
WO/2018/100539A1
A method of controlling iron in a hydrometallurgical process is disclosed. The method may comprise the steps of: leaching (14, 114) a feed slurry (2, 102); forming a pregnant leach solution (12a, 12b; 112a, 112b); removing a first leach ...  
WO/2018/098603A1
The design and operation of the vibratory cementation device comprises a vessel containing iron-rich acid solutions of dissolved copper and scrap iron as a reactant, wherein said vessel, which is formed on the basis of polymers or plasti...  
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/2018/098845A1
A rotary jet-grouting modular rare-earth mining process. First, the distribution of rare-earth mineral deposits and the thickness of the mineral deposits in a mountain are ascertained, and a liquor collecting pipe network is arranged at ...  
WO/2018/101039A1
Provided is a method capable of efficiently separating impurities and scandium from an acidic solution containing scandium and at least aluminum as impurities, to recover scandium with high purity. The ion exchange processing method acco...  
WO/2018/096962A1
Provided is a method for oxidizing manganese contained in wastewater and removing the same with the use of a manganese oxidizing bacterium. The method for removing manganese from manganese-containing wastewater using a manganese oxidizin...  

Matches 1 - 50 out of 9,286