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Matches 51 - 100 out of 7,530

Document Document Title
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/2015/058257A1
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/2015/058239A1
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/2015/056159A1
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/2015/049959A1
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/2015/049421A1
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/2015/042692A1
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/2015/048731A1
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/2015/044353A1
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/2015/041064A1
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/2015/040045A1
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/2015/039177A1
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/2015/032393A4
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/2015/031943A1
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/2015/032393A1
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/2015/027888A1
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...  
WO/2015/030257A1
A recovery method for tin mineral includes adding hydrofluoric acid to tailings separated from tin ore, and flotation-concentrating the tailings after the adding of the hydrofluoric acid.  
WO/2015/030243A1
This invention pertains to the following: a recovery composition that contains ruthenium, iridium, and iron, with the ruthenium content and the iridium content satisfying relation (1); and a method in which said composition is used to re...  
WO/2015/024135A1
An electrodialytic acid regeneration apparatus includes two electrodes and a stack of electrodialysis chambers arranged between the electrodes. Immediately adjacent chambers are separated from each other by alternating anion exchange mem...  
WO/2015/026061A1
Disclosed is an integrated electrolysis leaching device for leaching a refractory rare metal. The integrated electrolysis leaching device for leaching a refractory rare metal is characterized by comprising: a reactor containing an electr...  
WO/2015/025558A1
The purpose of the present invention is to collect scandium from an acidic solution containing calcium, magnesium and scandium with high efficiency and in a selective manner. In the present invention, an acidic solution containing calciu...  
WO/2015/022843A1
Provided is a rare earth extracting agent which can extract a rare earth selectively even in a low pH range. The rare earth extracting agent according to the present invention comprises a diketone and a neutral extracting agent. The dike...  
WO/2015/021926A1
Provided are a method for processing a laterite-nickel ore and a method for recycling scandium. The method for recycling scandium comprises: performing scandium extraction processing on scandium containing lixivium by using an organic ex...  
WO/2015/019434A1
An apparatus for separating and recovering multiple kinds of rare earth elements, the apparatus being provided with: a first heating furnace for chlorinating a rare earth feedstock containing multiple kinds of rare earth elements; a seco...  
WO/2015/020121A1
 The present invention selectively and inexpensively recovers liquid-borne metal ions. This metal ion recovery device (1) uses a selective transmission membrane (10) that selectively allows the transmission of Li, and mesh-form negativ...  
WO/2015/019433A1
An apparatus for separating and recovering multiple kinds of rare earth elements, the apparatus being provided with: a mixing and pulverizing section for mixing a rare earth feedstock containing multiple kinds of rare earth elements with...  
WO/2015/016103A1
Provided are: an adsorbent material able to efficiently adsorb an adsorption subject such as a metal ion; and a method for producing such an adsorbent material. The adsorbent material is such that an ethylene-vinyl alcohol copolymer is t...  
WO/2015/016102A1
Provided are an adsorption filter that can absorb and recover metal ions and the like efficiently and a method for manufacturing the same. The adsorption filter is constituted of graft copolymer particles into which an adsorption group h...  
WO/2015/010667A1
The solution according to invention consists in a plasma-chemical method for dissolving bulk Iridium metal and/or Iridium alloy in hydrochloric acid, comprising following steps a) providing an electrolytic cell divided into the compartme...  
WO/2015/013147A1
The invention provides methods, compositions, and apparatuses for preventing the formation of scale in heap leach process solution distribution systems comprised of piping, spray nozzels, or emitter tubes. Solution distribution system co...  
WO/2015/009254A3
The present invention relates to a process for recovering nickel, cobalt and scandium from refractory lateritic nickel ores, wherein in this process, lateritic nickel ores are subjected to high pressure acid leaching process with sulphur...  
WO/2015/008168A3
The present application offers a solution to the current problems associated with recovery and recycling of precious metals such as gold and copper from scrap material, discarded articles, and other items. The solution is premised on a m...  
WO/2015/009254A2
The present invention relates to a process for recovering nickel, cobalt and scandium from refractory lateritic nickel ores, wherein in this process, lateritic nickel ores are subjected to high pressure acid leaching process with sulphur...  
WO/2015/006850A1
A method for recovering precious metal from an acidic pregnant solution resulting from halogen or hypohalite leaching of an ore, comprising lowering the ORP of the pregnant leachate with a reducing agent in the presence of slurried non-c...  
WO/2015/009204A3
The invention relates to hydrometallurgy, particularly to the process of extraction of nickel, cobalt, and other metals from laterite ores. The process of extraction of nickel, cobalt and other metals from laterite ores includes leaching...  
WO/2015/003538A1
Disclosed is a hydrometallurgical method of metal sulfides, comprising: 1) adding a metal A sulfide into a leaching solution and finally generating a metal A complex, elemental sulfur and a reduced catalyst; and 2) filtering the leaching...  
WO/2015/001893A1
In the present invention, proposed is a separation method for a leaching residue from which can be obtained a hematite-containing substance that can be used as an iron manufacturing-use starting material, and provided is a production met...  
WO/2014/201948A1
A wet method for recovering a lead-containing raw material, comprising: 1) a lead-containing raw material is leached with a solution containing a sulphate, a complexing agent and a catalyst, a reductant is added to reduce lead dioxide or...  
WO/2014/201507A1
The present disclosure relates to homoserine lactones derivatives of formula (I) (I) as biomining additives. The present disclosure also provides biomining operations using the biomining additive to improving target mineral recovery.  
WO/2014/203557A1
The present invention mitigates concentration of stress due to differences in thermal expansion and prevents damage of lining members. A lining structure (1) for a lining member (20) provided on the base material (10) of an inserted tube...  
WO/2014/203661A1
Provided is a hematite manufacturing method by which hematite with a low sulfur level can be manufactured using a high-pressure acid leaching (HPAL) process with a nickel oxidized ore. Magnesium oxide manufactured by steps (1) through (5...  
WO/2014/201507A8
The present disclosure relates to homoserine lactones derivatives of formula (I) as biomining additives. The present disclosure also provides biomining operations using the biomining additive to improving target mineral recovery.  
WO/2014/199006A1
A method of manufacturing an elbow channel (1) with an elbow angle (a). The method comprises manufacturing an elongated filament-reinforced plastic composite hollow body (2) by a filament winding technology; miter-cutting the elongated h...  
WO/2014/199007A1
In a solvent extraction settler arrangement the outlet box (11) comprises an inner tube (18) arranged vertically inside a shaft (12), the inner tube being spaced from the side wall (13) of the shaft (12) to define an intermediate space (...  
WO/2014/199771A1
Provided is a wastewater treatment method capable of selectively and efficiently separating and removing high-purity manganese sediment from sulfuric acid acidic wastewater containing aluminum, magnesium and manganese. In this wastewater...  
WO/2014/198830A1
A process of isolating a REE or a group of REE from a solution or dispersion containing said REE or said group of REEs comprising the following steps: (i) preparing a mixture comprising said solution or dispersion and biomass comprising ...  
WO/2014/198690A1
The invention relates to a method for recovering at least one metal present within a material, said material possibly including iron, said method including a step of supplying a ferrous ion, a step of supplying a ferric ion, and a step o...  
WO/2014/195586A1
The present invention relates to a method of recovering copper and one or more precious metals from copper-bearing sulfide ore or concentrate comprising leaching copper-bearing ore and/or concentrate under atmospheric or slightly pressur...  

Matches 51 - 100 out of 7,530