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Matches 701 - 750 out of 7,262

Document Document Title
WO/2009/087908A1
A method of recycling useful metals is provided. The method enables useful metals including indium, zinc, yttrium, europium, lanthanum, terbium, gadolinium, antimony, lead, copper, tin, and silver to be recovered from wastes, such as aba...  
WO/2009/088605A1
A system which uses available waste acid process streams from hydrometallurgical extraction processes as absorption media for the direct production of leach grade acid solutions for return to the hydrometallurgical processing circuit for...  
WO/2009/083204A1
Suggested is an improved process for metal recovery from ore using agitation leaching comprising dividing leaching of the crushed and mined ore into at least two sequential leaching-solids-liquid separation-solvent extraction sub-circuit...  
WO/2009/079715A1
A heap leach process for the recovery of nickel and cobalt from a lateritic ore, said process including the steps of leaching and/or agglomerating the ore with a lixiviant that includes ferrous ions, wherein the lixiviant is able to libe...  
WO/2009/079716A1
A process for heap leaching a laterite or said process including the steps of: a) providing a primary and a secondary heap, said primary heap comprising predominantly a nickel and cobalt containing sulfide or saprolitic type ore, and sai...  
WO/2009/071006A1
A method of manufacturing V product utilizing fluidization technology and fluidization device comprises: calcining V slag with high Ca in a fluidized furnace, in which the weight ratio of CaO to V2O5 is 0.5-1.4, the average temperature i...  
WO/2009/068735A1
The invention relates to a method for processing pyritic copper sulphide concentrate, in which, in addition to copper, there is arsenic and gold bound to the sulphide minerals, or invisible gold. In the method concentrate is leached into...  
WO/2009/069005A3
The present invention is directed to recovery of gold from refractory and double refractory ores using a fungal agent and/or culture media. The fungal agent is inoculated in the feed material to either decompose sulfide sulfur or deactiv...  
WO/2009/066308A3
A process for extraction of alumina from aluminum containing ores is disclosed. The process comprises the following steps, determining the alumina and silica content in the ore; treating the ore with caustic and heat, leaching the interm...  
WO/2009/067128A3
A method and apparatus for extracting organic chemicals from water. In particular an apparatus and procedure to effect the liquid-liquid extraction of semi- volatile organic compounds from water in original sampling bottles by rotating a...  
WO/2009/066308A2
A process for extraction of alumina from aluminum containing ores is disclosed. The process comprises the following steps, determining the alumina and silica content in the ore; treating the ore with caustic and heat, leaching the interm...  
WO/2009/067128A2
A method and apparatus for extracting organic chemicals from water. In particular an apparatus and procedure to effect the liquid-liquid extraction of semi- volatile organic compounds from water in original sampling bottles by rotating a...  
WO/2009/067039A1
The inventive method for extracting precious metals from refractory ores and concentrates can be used in the hydrometallurgical industry for processing sulphide mineral raw materials. The method for extracting precious metals from refrac...  
WO/2009/063482A2
A process for extraction of alumina from aluminum containing ores is disclosed. The process involves the following steps: determining the alumina and silica content in the ore; treating the ore with caustic, subjecting the reaction mass ...  
WO/2009/063482A3
A process for extraction of alumina from aluminum containing ores is disclosed. The process involves the following steps: determining the alumina and silica content in the ore; treating the ore with caustic, subjecting the reaction mass ...  
WO/2009/063128A1
Equipment to be placed in the settler (6) of liquid-liquid extraction. The equipment comprises an overflow chute (10) for receiving a first solution as an overflow from the settler; a first outlet box (11) that is placed on a lower level...  
WO/2009/059336A1
A method of conducting a bioleaching process including the steps of forming a main heap, culturing at least one microorganism which exhibits bioleaching activity in a predetermined temperature range, monitoring the temperature in the mai...  
WO/2009/052362A3
The present invention relates to polysaccharides that have been modified by- providing azetidinium functionality thereto. Such functionality can be provided by crosslinking a polysaccharide with a resin having azetidinium functional grou...  
WO/2009/044298A3
A composition and method for agglomerating/coagulating silica particles in aqueous mineral process streams comprising polyalkylene glycols and non-salt polyether amines and further contacting with flocculant agent. The invention further ...  
WO/2009/044298A8
A composition and method for agglomerating/coagulating silica particles in aqueous mineral process streams comprising polyalkylene glycols and non-salt polyether amines and further contacting with flocculant agent. The invention further ...  
WO/2009/044298A2
A composition and method for agglomerating/coagulating silica particles in aqueous mineral process streams comprising polyalkylene glycols and non-salt polyether amines and further contacting with flocculant agent. The invention further ...  
WO/2009/039643A1
A process for producing a purified nickel hydroxide precipitate from a nickel-containing leach solution with impurities including one or more of the following: manganese, copper, zinc, iron and/or cobalt, so that the purified nickel hydr...  
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...  

Matches 701 - 750 out of 7,262