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Matches 51 - 100 out of 7,518

Document Document Title
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/2015/009254A2
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...  
WO/2014/191833A1
The disclosure relates to the oxidation and immobilization of trivalent arsenic from arsenic-containing solutions. The process includes oxidation of trivalent arsenic (As3+) species to the pentavalent state (As5+). A carbon additive (e.g...  
WO/2014/190434A1
A method for purification and separation of mixed elements, comprising at least a first free flow electrophoresis separation chamber, wherein a solution of the mixed elements is passed through the first separation chamber, an electric fi...  
WO/2014/193253A1
We disclose a process of obtaining a highly concentrated and purified nickel (II) nitrate(V) solution from a waste nickel solution containing sulphates and/or chlorides. Multicomponent solutions, containing nickel, are used as a substrat...  
WO/2014/191832A1
The disclosure relates to pre-treatment of precious metal-bearing oxide ores, prior to precious metal leaching by thiosulfate. The process comprises mixing oxide ore in oxygenated water in the presence of a carbon-based material (e.g., a...  
WO/2014/193751A1
An apparatus and/or system and method for recycling vent gas from an autoclave (103) is disclosed including cooling and cleaning a vent gas, introducing the cooled and cleaned resultant stream into a purification unit (109) to remove at ...  
WO/2014/188077A1
The invention relates to a method and apparatus for recovering metals from metalliferous starting materials comprising steps of i) leaching the metalliferous starting material in chloride-based leaching liquor, ii) withdrawing from the l...  
WO/2014/188158A1
A process of forming a porous polymer template material for use in selectively recovering a metal from a solution of the metal ions comprises polymerising a monomer admixed with a compound of the metal to be recovered, and then treating ...  
WO/2014/183511A1
A method for processing vanadium-titanium magnetite finished ores by using a wet process. The method comprises the steps: extracting vanadium from vanadium-titanium magnetite finished ores and processing, by using the vanadium extraction...  
WO/2014/177765A1
The invention relates to a method for preparing a gold- containing solution by chloride leaching from gold-bearing raw materials. A further object of the invention is to provide a method for recovering gold and optionally silver from the...  
WO/2014/178586A1
The present invention relates to a method for recovering an acid and a platinum group metal from a leaching solution of a waste catalyst and, more particularly, to a method for recovering an acid and a platinum group metal from a leachin...  
WO/2014/177903A1
The invention relates to a method for bioleaching and solvent extraction with selective recovery of copper and zinc from polymetal concentrates of sulfides, comprising a process of bioleaching and reduction of ferric ion and a process of...  

Matches 51 - 100 out of 7,518