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Patent Searching and Data


Matches 701 - 750 out of 7,075

Document Document Title
WO/2009/039560A1
A micronutrient fertiliser comprising leach tailings from a sulphur dioxide leach process for the recovery of manganese or manganese sulphate products and a method for the production of such a micronutrient fertiliser, the method compris...  
WO/2009/039580A1
A process for producing a stable metal sulfate product including the steps of : a) providing a source of metal sulfate crystals; b) adding a sub-stoichiometric amount of a stabilising compound to the metal sulfate crystals to form a past...  
WO/2009/038962A1
The present invention relates generally to a process for controlled leaching and sequential recovery of two or more metals from metal-bearing materials. In one exemplary embodiment, recovery of metals from a leached metal-bearing materia...  
WO/2009/038963A1
The present invention relates generally to a process for removing dissolved or colloidal silica from a pregnant leach solution ("PLS"). More particularly, an exemplary embodiment of the present invention relates to a process which mixes ...  
WO/2009/033227A1
A process for the recovery of nickel and/or cobalt from a lateritic ore by heap leaching, the process including the steps of : a) forming one or more heaps from a lateritic ore body wherein that lateritic ore body includes a blend of bot...  
WO/2009/030811A1
The invention relates to a method for the preparation of a copper concentrate suitable for pyrometallurgical treatment from a concentrate in which zinc is present as an impurity. In accordance with the method, zinc is leached from the co...  
WO/2009/030894A1
A method for removing a metal from a metal-containing solution, the method comprising contacting the metal-containing solution with a metal-removing composition and recovering a solution having a lowered metal concentration when compared...  
WO/2009/029463A1
The membrane electrode assemblies of fuel cells are recycled by pulverizing the membrane electrode assemblies into a powder by cryo-grinding and contacting with acid to leach precious metals. Surfactants can optionally be used to increas...  
WO/2009/026683A1
The present invention refers to a hydro-metallurgical process using resin-in-neutralized-solution in heap leaching effluent. More specifically, the process is applicable to lateritic ore, nickel oxidate, cobalt oxidate or a mixture conta...  
WO/2009/026682A1
A hydrometallurgical resin-in-leach (RIL) process for directly recovering nickel and/or cobalt. Simultaneous pulp leaching by adding an acid or base, dissolves the metals of interest with adsorption of the metals rendered soluble in on i...  
WO/2009/023813A1
There rs provided a metals recover. s\ stem including at least one tank ha\ ing a top portion and a bottom portion, wherein the top portion has an inlet and sajd bottom portion has an outlet a process Quid cierh erv deuce in fluid commun...  
WO/2009/021389A1
A process of smelting monazite rare earth ore rich in Fe in particular comprises the following steps: mixing Fe-rich monazite rare earth ore containing 8-40% Fe with concentrated sulphuric acid and adding the mixture into a calcining kil...  
WO/2009/018695A1
An enriching and screening bauxite desulfurizing bacteria method, using acidic water from the mining pit in high sulfur ore regions, which comprises the following steps: adding 9 k non-iron inorganic salts to the collected acidic water f...  
WO/2009/019955A1
The object is to remove arsenic in a stable form from an arsenic-containing smelting intermediate product. Thus, disclosed is a method for treating an arsenic-containing nonferrous smelting intermediate product, which comprises: a leachi...  
WO/2009/018619A1
An atmospheric leach process in the recovery of nickel and cobalt from lateritic ores, said process including the steps of : a) providing limonitic and saprolitic ore fractions of a laterite ore; b) separately slurrying the limonitic and...  
WO/2009/017434A1
The invention relates to methods for recovering non-ferrous, rare, radioactive and precious metals from refractory mineral raw materials and can be used in production. The inventive method for recovering non-ferrous, rare, radioactive an...  
WO/2009/013142A3
The present invention relates to novel chelate resins comprising quaternary nitrogen atoms as a functional group in structures of the general formula (I), wherein at least one of the radicals R1 to R3 stands for an optionally substituted...  
WO/2009/013149A3
The invention relates to a method for producing novel chelate resins based on cross-linked perl polymers arising from (meth)acrylic compounds having aminomethyl groups and/or aminomethyl nitrogen heterocyclic groups as functional groups ...  
WO/2009/011073A1
In treating arsenic in the form of diarsenic trioxide, it is intended to provide a method which satisfies the elution standard (in accordance with Environmental Ministerial Announcement No.13) and by which scorodite showing a good filtra...  
WO/2009/009825A1
In accordance with the present invention there is provided a method for leaching one or more target metals from an ore, the method comprising the method steps of: curing the ore to be leached through the application of an aqueous solutio...  
WO/2009/011316A1
A method that in the treatment of arsenic contained in a nonferrous smelting intermediary product, especially treatment of copper-arsenic compounds in the form of an intermetallic compound, would produce stable scorodite excelling in fil...  
WO/2009/011317A1
A method that in the treatment of arsenic contained in a nonferrous smelting intermediary product, especially treatment of arsenic in the form of a sulfide, while satisfying the leaching standards (according to Environment Agency Notific...  
WO/2009/007792A1
A method of producing copper from a solution containing a copper (II) salt includes the steps of reducing at least some of the copper (II) salt to a copper (I) salt in a first reduction step, solubilising the copper (I) salt to produce a...  
WO/2009/003240A1
A method for controlling iron precipitation from acidic ferric sulphate leach solutions in leaching of chalcopyrite and/or pyrite, the method comprising the steps of: increasing the rate of formation of a ferric basic sulphate and/or pro...  
WO/2009/004321A3
A settler tank for a solution used as part of a process to extract metal from metal ore, the settler tank being dimensioned such that it may be transported by a conventional truck and trailer. A settler tank for an ore extraction process...  
WO/2009/004321A2
A settler tank for a solution used as part of a process to extract metal from metal ore, the settler tank being dimensioned such that it may be transported by a conventional truck and trailer. A settler tank for an ore extraction process...  
WO/2009/000037A1
A process for leaching an ore containing sulphidic copper-containing minerals is disclosed. The process includes carrying out an aerated oxidising leach of a part of the ore and causing reactions with a source of iron such as pyrite in t...  
WO/2009/001897A1
Disclosed is a novel separation reagent which has never exist before and can achieve a high extraction rate of rhodium in a chlorine-containing acid solution. Also disclosed is a method for the separation/collection of a platinum-group m...  
WO/2009/000051A1
A process for the recovery of magnesium from a solution containing soluble magnesium, the process comprising, precipitating magnesium hydroxide from the solution, forming an oxide blend including magnesium oxide derived from the precipit...  
WO/2008/141423A1
There are provided processes and compositions for extracting aluminum and/or iron ions from aluminous ores or a mixture. One process comprises recovering said aluminum ions from a composition comprising said aluminum ions, said iron ions...  
WO/2008/141443A1
A process for the extraction of a precious metal, such as gold or silver, from a sulphide ore or concentrate or other source material comprises subjecting the source material to pressure oxidation to produce a pressure oxidation slurry. ...  
WO/2008/139023A1
A pump comprising a body (1) that is a cylindrical vertical container (10), which is upwards open, its interior (2) being defined by a planar bottom (11) that comprises a central inlet (3), and by a first side wall (12) that comprises an...  
WO/2008/139430A2
The invention discloses a drainage system for an aerated heap leaching operation which comprises a layer of drainage rock (2) which includes a plurality of spaced apart substantially vertically orientated perforated tubes, preferably str...  
WO/2008/138038A1
A process for leaching nickel and/or cobalt containing laterite or partially oxidised laterite ore including the steps of : a) providing a laterite or partially oxidised laterite ore; b) leaching the ore in a leach step with an acid in t...  
WO/2008/139412A1
A method for producing a metal from a metal sulphide ore or mineral is claimed. The metal sulphide ore is leached by non-oxidative dissolution in a chloride solution to produce a metal chloride solution and hydrogen sulphide; the metal c...  
WO/2008/139430A3
The invention discloses a drainage system for an aerated heap leaching operation which comprises a layer of drainage rock (2) which includes a plurality of spaced apart substantially vertically orientated perforated tubes, preferably str...  
WO/2008/138039A1
A process for the recovery of nickel and/or cobalt from laterite or partially oxidised lateritic ores having a substantial proportion of the iron present in the ferrous state, said process including the steps of : a) providing a laterite...  
WO/2008/136542A1
Disclosed is a reactor for separating an aluminum layer from a multi-layer film wastes to reuse a multi-layer film waste without burying or incinerating the multi-layer film waste including the aluminum. The reactor comprises a cylindric...  
WO/2008/132830A1
Disclosed is a method for recovering a rare metal such as gallium or indium from a group III-V compound semiconductor or the like for recycling. Specifically disclosed is a method for recovering at least one metal selected from the group...  
WO/2008/128278A2
A method for the separation of nickel and iron from an acidic iron-containing nickel solution containing at least some dissolved iron in the ferric [Fe(III)] state comprises conducting a crude precipitation to precipitate some of the iro...  
WO/2008/128278A3
A method for the separation of nickel and iron from an acidic iron-containing nickel solution containing at least some dissolved iron in the ferric [Fe(III)] state comprises conducting a crude precipitation to precipitate some of the iro...  
WO/2008/124904A1
The present invention relates to a process which comprises the following stages: (a) beneficiation or preparation of ores containing nickel and/or cobalt and other base metals; (b) ore leaching: can be performed in various ways and combi...  
WO/2008/119317A1
The invention relates to a method for the production of a metal melt containing at least one base metal and at least one additional alloying component, wherein the production takes place in a smelting vessel with slag covering the melt. ...  
WO/2008/117649A1
A method of recovering a valuable metal from an oxide-based scrap, characterized by using an insoluble electrode as an anode, using the oxide-based scrap as a cathode, and conducting electrolysis to recover the cathode scrap in the form ...  
WO/2008/116122A1
Methods and systems for expanding mineral ore, including perlite, are disclosed. Microwave energy is generated and applied to at least one gas. The energized gas then contacts particles of at least one mineral ore, wherein the transfer o...  
WO/2008/101396A1
A preprocessing method of an organic extractant, the preprocessed product and the use thereof in rare earth extraction separation. The preprocessing method comprises that an organic extractant is mixed with a rare earth solution and powd...  
WO/2008/101305A1
The present invention relates to a method to extract out of an aqueous solution, concentrate and/or reformulate [18F] fluorides without any evaporation step, characterised in that the eluting solution is a low water content, preferably <...  
WO/2008/099681A1
Disclosed is a material which enables to efficiently recover metal ions such as silver ions. Also disclosed are a method for producing such a material, a method for adsorbing metal ions by using such a material, and a method for recoveri...  
WO/2008/090671A1
Disclosed are a method and an apparatus for the recovery of indium, which do not need for collecting indium in the form of indium hydroxide, can collect indium at a high concentration, have a good handling property during the collection,...  
WO/2008/090672A1
Disclosed are a method and an apparatus for the recovery of indium, which do not need for collecting indium in the form of indium hydroxide, have a good handling property during the collection, can collect indium readily by using a filte...  

Matches 701 - 750 out of 7,075