Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 151 - 200 out of 8,034

Document Document Title
WO/2015/097343A1
The invention relates to a method and an arrangement for nickel laterite processing. The method comprises the steps of providing a cold feed slurry; heating cold feed slurry one or more times to obtain a heated diluted feed slurry;removi...  
WO/2015/097342A1
The invention relates to a combined heater-decanter unit in a nickel laterite process. The unit comprises a vertically elongated vessel (1) comprising a heating section (2) arranged in the upper part of the vessel (1), a pressure decanta...  
WO/2015/092147A1
The invention relates to an autoclave for leaching and oxidising ores comprises an inlet for receiving slurries of ore into the autoclave, agitation means for agitating slurries of ore in the autoclave and an outlet for removing at least...  
WO/2015/090203A1
A biological method for extracting metal from metallurgical and mineral solid waste comprises: crushing the solid waste, biological soaking, recycling the metal from leachate, and separating the soaked solid waste slag by a gravity conce...  
WO/2015/092503A1
A process for producing alumina trihydrate comprising an digestion step (26), a separation step (70), and a precipitation step (52) the separation step including: b1) pretreating a slurry from the digestion step by adding a fiocculant to...  
WO/2015/095054A2
A method [100] of leaching a metal sulfide ore is disclosed. The method [100] may comprise the steps of: providing slurry [3] having metal sulfide ore particles therein; subjecting the slurry [3] to a flotation step [2] at a pH level abo...  
WO/2015/095054A9
A method [100] of leaching a metal sulfide ore is disclosed. The method [100] may comprise the steps of: providing slurry [3] having metal sulfide ore particles therein; subjecting the slurry [3] to a flotation step [2] at a pH level abo...  
WO/2015/090450A1
A method and a system for pressurised leaching of ore. The method comprises: heating ore slurry comprising ore and solvent, reacting and holding the heated ore slurry at working temperature for leaching valuable species into the heated s...  
WO/2015/093363A1
The present invention suppresses elution of manganese from manganese sediment in slurry accumulated in a sedimentation tank. The present invention sets the pH of the slurry including manganese sediment accumulated in the sedimentation ta...  
WO/2015/095054A3
A method [100] of leaching a metal sulfide ore is disclosed. The method [100] may comprise the steps of: providing slurry [3] having metal sulfide ore particles therein; subjecting the slurry [3] to a flotation step [2] at a pH level abo...  
WO/2015/093364A1
The purpose of the present invention is to efficiently use a neutralizer in the wet smelting of nickel oxide ore. In this neutralizing method for neutralizing, with limestone and hydrated lime, a slurry that includes sulfuric acid and im...  
WO/2015/091256A1
The present invention relates to a device and to a method for obtaining metals from primary and secondary raw materials based on utilizing organic acids and other microbial metabolites. 2- and/or 3-valent metal ions are obtained from pri...  
WO/2015/087845A1
The purpose of the present invention is to provide a method for selectively separating a rare metal such as indium and a rare earth, which is a substance that is usually difficult to be separated, at low cost, particularly a method for s...  
WO/2015/086906A1
The invention relates to a method of separating elemental sulphur from elemental sulphur-containing starting material, wherein the method comprises a) a leaching step, wherein the starting material is contacted with a water soluble organ...  
WO/2015/086909A1
The present invention relates to TiN coated autoclaves for pressure oxidation of slurried ores and concentrates and provides an autoclave for pressure oxidation of slurried ores and/or concentrates comprising a main shell having an inter...  
WO/2015/081368A1
According to the invention there is provided a process to produce a refined nickel metal product from a mixed hydroxide intermediate, by direct hydrogen pressure reduction of the leach solution. Other products containing the nickel, coba...  
WO/2015/083233A1
[Problem] To collect palladium from a palladium-containing liquid waste containing an inorganic sulfur oxide such as sodium sulfite at a high collection rate and with high efficiency without requiring the employment of a complicated proc...  
WO/2015/083292A1
Provided are a method and an apparatus for separating a neodymium ion and a dysprosium ion from each other easily. An organic molecule capable of forming a complex with each of a neodymium ion and a dysprosium ion is added to an aqueous ...  
WO/2015/081775A1
A method for comprehensively using high-chromium-content vanadium-titanium magnetite concentrate comprises the following steps: 1) mixing high-chromium-content vanadium-titanium magnetite concentrate with a carbonaceous reducing agent an...  
WO/2015/081372A3
A method of agglomerating mined ore for use in a heap leaching process includes exposing ore fragments to electromagnetic radiation and causing fractures to form in the fragments and thereafter agglomerating fragments.  
WO/2015/082767A1
The invention relates to a method and to a steam heat exchanger arrangement (2) for thermal control of the content in a vessel space (3) of a vessel (1) such as a hydrometallurgical reactor. The steam heat exchanger arrangement (2) compr...  
WO/2015/075798A1
 Provided is a method for separating elements and an element separation system in which the amount of waste liquid can be reduced without compromising the capability to separate the target elements. This element separation method is pr...  
WO/2015/076526A1
The present invention relates to complex copper ore beneficiation method. The complex copper ore beneficiation method according to the present invention comprises: a particle-size separation step which is carried out on a copper complex ...  
WO/2015/075317A1
The present invention relates to a method for recovering rare earth metals from waste sulphate materials, such as waste gypsum, which is a known secondary resource of rare earth metals and widely present e.g. in areas, where industrial p...  
WO/2015/076911A3
The present invention provides a redox mediated polymer composition for the selective sequestration and separation of multivalent metal ions comprising: 2 or more monomers polymerized to form a polymeric thiophene backbone, wherein each ...  
WO/2015/075502A1
The invention relates to a bacterial strain, Cutipay, isolated from the species Sulfobacillus thermosulfidooxidans, deposited in the DSMZ (under the denomination DSM 27601 on the 29th of July 2013). This strain is useful in bioleaching p...  
WO/2015/075311A1
The invention relates to a method and an arrangement for recovering valuable metals by direct leaching of coarse material, such as material obtained from granulation of a molten metal, matte or slag.  
WO/2015/071546A1
A method of recovering copper and cobalt, wherein the method comprises leaching the starting material to obtain a leach slurry comprising copper, cobalt, iron and aluminium, extracting in a first extraction step a first part of copper, a...  
WO/2015/071848A1
The invention concerns a method for selectively recovering rare earths, nickel, cobalt, manganese and iron contained in a nickel-metal hydride battery. The method for selectively recovering rare earths, nickel, cobalt, manganese and iron...  
WO/2015/071547A1
The invention relates to a method and an arrangement for separating nickel and cobalt by oxime extraction from an aluminium- and iron-fee leach solution obtained from acidic nickel laterite leach. The process is performed at a pH in the ...  
WO/2015/067689A1
The invention relates to the use of an organic-inorganic hybrid material, including an inorganic solid support on which are grafted the organic molecules having general formula (I), where: x, y and z = 0 or 1, with at least one of x, y a...  
WO/2015/061836A1
A process to recover a target metal from hydrometallurgical solutions comprising the method steps of: i. Adding a calcium based neutralising agent such as lime or limestone to a solution containing aluminium sulphate at moderate temperat...  
WO/2015/058239A1
Disclosed herein, is a process for recovering- valuable metals and/or their oxides from red mud bauxite residues or similar. The process comprises: calcining a red mud residue having a pH of less than about 10 to provide a calcinated red...  
WO/2015/058257A1
ABSTRACT A method for treating a mineral composition containing iron, arsenic or other Group VA compounds comprises milling the mineral composition to a particle size of P80 of less than 25 µm and leaching the mineral composition in the...  
WO/2015/060367A1
A separating agent which can selectively separate and recover platinum group metal ions from a solution containing multiple kinds of metal ions, and a separation method of platinum group metal ions are provided. This platinum group metal...  
WO/2015/056159A1
Liquid treatment apparatus comprises at least two chambers being first and second chambers through which a fluid can flow. The two chambers are separated by at least one choke nozzle which has an entrance in the first chamber and an exit...  
WO/2015/051585A1
A wet-method in an atmospheric oxidation method for cerium in a rare earth hydroxide comprises: (1) preparing rare earth hydroxide mixed slurry with an REO concentration of 10 to 100g/L; (2) adjusting the alkalinity of the rare earth hyd...  
WO/2015/049421A1
The invention relates to a method and an apparatus for separating precious metals, especially platinum group metals and gold and silver,and optionally base metals from a starting material containing the same by a combination of pressure ...  
WO/2015/049959A1
The present invention provides a method for efficiently producing composite noble metal nanoparticles by means of a process that is low-energy, has a low environmental impact, and is simple. The method for producing composite noble metal...  
WO/2015/042692A1
There is provided a process for preparing alumina. The process comprise leaching an aluminum-containing material (for example an industrial waste product chosen from red mud, fly ashes and a mixture thereof), with HCl so as to obtain a l...  
WO/2015/044353A1
The present invention relates to a process for the selective and ecoefficient recovery of lead and silver jointly as a concentrate product from hydrometallurgical residues.  
WO/2015/048731A1
A metal sequestering material can be contacted with a reaction mixture of a metal- catalyzed reaction to remove transition metals or transition metal complexes. The reaction mixture contains transition metals and a reaction product in so...  
WO/2015/041064A1
Provided is a production method in which iron oxide (hematite) having a sulfur content that is low enough to make it possible to use said iron oxide as a starting material for iron production is purified from a leaching residue containin...  
WO/2015/039177A1
In accordance with the present invention there is provided a method for leaching zinc from a carbonate-hosted ore, the method comprising the method steps of: applying an aqueous solution of a curing agent to the carbonate-hoste ore, prod...  
WO/2015/040045A1
The invention relates to a method for recovering and/or for separating and/or for purifying rare earths (32). According to the invention, carrier-free continuous electrophoresis is carried out on a starting sample (30) of the rare earths...  
WO/2015/032393A4
The invention relates to a method for utilizing rare earth boride- (ceramics, magnets) containing wastes, wherein a.) the waste materials are mixed with a reaction solution composed of water, 1 to 50% by weight of organosulfonic acid and...  
WO/2015/032393A1
The invention relates to a method for utilizing rare earth boride- (ceramics, magnets) containing wastes, wherein a.) the waste materials are mixed with a reaction solution composed of water, 1 to 50% by weight of organosulfonic acid and...  
WO/2015/031943A1
A process for recovery of metal comprising copper and/or a precious metal from a metal containing material, including the steps of: leaching the metal containing material with an alkaline lixiviant and an amino acid or derivative thereof...  
WO/2015/035404A1
The present invention provides a polymeric extractant with pendant chelator groups for selective sequestration of actinides and/or lanthanides comprising: a first block polymer comprising one or more CMPO monomers each having a first bac...  
WO/2015/027888A1
Disclosed are a nickel hydroxide and preparation method thereof, the method comprising: (a) contacting first nickel hydroxide slurry and sodium hydroxide to obtain alkaline slurry; (b) contacting the alkaline slurry and a solution contai...  

Matches 151 - 200 out of 8,034