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Matches 201 - 250 out of 8,347

Document Document Title
WO/2015/108879A1
Embodiments of the present invention include systems and methods that include a sorption vessel containing a pulp including an aqueous slurry and a sorbent, a screening system at least partially submerged within the pulp and including a ...  
WO/2015/103845A1
A method for treating a lead-containing raw material, comprising the following steps: under the condition of a first pH value, under the effect of a catalyst, reacting a lead-containing raw material, a sulphate A, a complexing agent A, a...  
WO/2015/102865A1
New and useful processes are provided for leaching precious metal from sources composed of or containing such metals. The leaching agents used are aqueous solutions of solvated alkali metal, alkaline earth metal, ammonium, and/or N-halos...  
WO/2015/102867A1
New and useful processes are provided for leaching at least one precious metal contents from sources composed of or containing such metals. The leaching agents used are aqueous solutions of solvated alkali metal, alkaline earth metal, am...  
WO/2015/102062A1
Low-α-emission bismuth characterized by having an α-ray emission of 0.005 cph/cm2 or less; and a process for producing low-α-emission bismuth, characterized by using bismuth having an α-ray emission of 0.2 cph/cm2 or less as a starti...  
WO/2015/098191A1
Bismuth characterized by having an α-ray emission of 0.007 cph/cm2 or less; and a process for producing low-α-emission bismuth, characterized by using bismuth having an α-ray emission of 0.15 cph/cm2 or less as a starting material, el...  
WO/2015/099612A1
A method of producing a metal carbonate from an ultramafic rock material is provided. The method includes providing an ultramafic rock material comprising a metal silicate; reacting the ultramafic rock material with an acid to form a mix...  
WO/2015/096549A1
Provided are a process and an apparatus for extracting battery grade lithium from brine. The process comprises the following steps: step 1, absorbing the brine with a lithium adsorption agent and then desorbing the lithium adsorption age...  
WO/2015/099189A1
[Problem] To provide a means of using a yeast to recover noble metal ions in reduced form, i.e., as noble metals. [Solution] In a liquid to which an electron donor has preferably been added, Saccharomyces cerevisiae, Zygosaccharomyces ro...  
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.  

Matches 201 - 250 out of 8,347