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Matches 1 - 50 out of 9,406

Document Document Title
WO/2019/006545A1
A method is disclosed for the oxidation and thermal decomposition of metal chlorides, leading to an efficient and effective separation of nuisance elements such as iron and aluminium from value metals such as copper and nickel. In the fi...  
WO/2019/009768A1
The invention relates to a composition and a method for producing a solid extractant for recovering scandium from sulphurous solutions. A solid extractant is proposed for the recovery of scandium from scandium-containing solutions, which...  
WO/2019/006568A1
The present invention relates to a method for extracting base and precious metals, all contained in refractory minerals, using aqueous media. The aim is to replace the current "flotation/smelting"ยท method for extracting minerals in Chil...  
WO/2019/008232A1
Limitations of existing metal recovery processes have raised a need to develop more efficient methods. To answer these needs, we present a simple, effective and selective hydrometallurgic precious metal recovery method based on laser 3D ...  
WO/2019/007712A1
The present invention relates to a process to treat carbonatitic non-sulfidic ores with a collector composition that comprises a phosphate compound of the formula (I) wherein R is linear or branched, saturated or unsaturated hydrocarbon ...  
WO/2019/007714A1
The present invention relates to a process to treat siliceous non-sulfidic ores with a collector composition that comprises a phosphate compound of the formula (I) wherein R is linear or branched, saturated or unsaturated hydrocarbon gro...  
WO/2019/002788A1
The invention relates to the use of ureas as extractants for fully or partially separating uranium(VI) from plutonium(IV) in an aqueous solution obtained by dissolving a spent nuclear fuel in nitric acid, by means of liquid-liquid extrac...  
WO/2019/000014A1
The present specification relates to a method for removing actinium from process liquors comprising ions of interest (which may be, for example, rare earth ions) and actinium ions. In this method, a low solubility metal sulfate salt is c...  
WO/2018/236240A1
The invention relates to the field of metallurgy of rare metals, more particularly to a method for recovering scandium from red mud, the waste generated in alumina production. The method comprises repulping red mud, sorption leaching sca...  
WO/2018/234637A1
The invention relates to a method of recovering Pt or Ag or Pt and Ag from a sulfate solution on an electrode. In particular, the invention concerns a method for recovering Pt or Ag or Pt and Ag from base metal bearing process solution, ...  
WO/2018/234614A1
The invention relates to a method and apparatus of preparing lithium compound(s) from lithium-containing mineral. The method comprises a) a leaching step, wherein the lithium-containing mineral is leached in aqueous leach solution contai...  
WO/2018/234855A1
This invention relates to an integrated process for recovering value metals from sulphide ore which includes the steps of bulk sorting 16 and screening 24/28 crushed ore. The sorted/screened coarse ore stream is ground and classified 20 ...  
WO/2018/234880A1
This invention relates to a process for recovering value metals from sulphide ore, including steps of crushing ore in a primary crusher (14) to a size of about 40cm and less, passing the crushed ore through one or more of the following p...  
WO/2018/231040A1
The present invention relates to copper leaching, more specifically to a method for leaching copper oxide ore to produce copper precipitates, which method uses a non-polluting leaching agent and comprises the following steps: (a) crushin...  
WO/2018/228924A1
Suggested is a method for recovering precious metals from secondary resources comprising or consisting of the following steps: (a) providing a source of solid waste material comprising precious metals in an amount of at least 0.0001 % b....  
WO/2018/227237A1
A method is disclosed for the recovery of cobalt, nickel and manganese from ores, concentrates, tailings, scrap alloys and spent batteries in an oxidic form, which is suitable for direct use in the manufacture of lithium-ion batteries, i...  
WO/2018/227674A1
A method for removing a radioactive thorium element in a rare earth mineral, comprising the following steps: mixing the rare earth mineral and selenium dioxide in water; enabling the radioactive thorium element and the selenium dioxide t...  
WO/2018/223190A1
A process for leaching a mineral particulate material comprising the steps of feeding the mineral particulate material to a leaching step (10) in which at least one valuable metal in the mineral particulate material is leached into a lea...  
WO/2018/223192A1
A method is disclosed for maximising the recovery of lithium from purified feed solutions in either chloride or sulphate media. The solubility of lithium carbonate is sufficiently high that conventional techniques do not recover all of t...  
WO/2018/225738A1
This palladium extraction agent, which comprises an alkyl-sulfide-group-comprising disubstituted aromatic compound represented by general formula (I) as an active ingredient, can be used to selectively extract only palladium from a solut...  
WO/2018/225638A1
This method for separating a heavy metal is characterized by comprising: a first dissolution step wherein an acidic liquid and an object to be treated containing phosphorus and a heavy metal are mixed with each other, so that the phospho...  
WO/2018/218294A1
The invention provides a process for producing magnesium oxide from fly ash or slag comprising magnesium and iron, the process comprising: leaching the fly ash or slag with an aqueous mineral acid solution to produce a leaching solution ...  
WO/2018/219464A1
The invention relates to a method for recovering iron and carbon components from washing tower sludges, wherein a washing tower sludge is mixed with an acid-containing solution and then a reaction is performed so that an acidic aqueous i...  
WO/2018/217083A1
A hydrometallurgical process is provided for the recovery of one or more target metals from a metalliferous feed material to produce one or more metal products by using ammonia leaching and solvent extraction, whereby entrained ammonia i...  
WO/2018/217739A1
A method of extraction of pure iron (III) oxide from bulk iron ore is provided that includes crushing and grinding, using a crushing machine, raw hematite ore, where a milled ore is formed, water-washing the milled ore by rinsing under c...  
WO/2018/215697A1
According to an example aspect of the present invention, there is provided a method for the recovery of metal compounds and ammonium sulphate from a solution comprising one or more metal sulphates, said method comprising the steps of a) ...  
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/2018/202691A1
The present invention relates to a method for performing a bioleaching process of chalcopyrite comprising the steps of: providing a chalcopyrite containing material; providing microorganisms, the microorganisms oxidizing iron(ll) at a ra...  
WO/2018/194760A1
A new column-based purification system and approach are described for rapid separation and purification of the alpha-emitting therapeutic radioisotope 211At from dissolved cyclotron targets that provide highly reproducible product result...  
WO/2018/192441A1
A method for use in producing battery-grade vanadium oxide, comprising the following steps: A. adding a vanadium-containing leaching solution into a mixed solution of ammonium carbonate, ammonia water and ammonium sulfate, stirring to pr...  
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...  

Matches 1 - 50 out of 9,406