Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 101 - 150 out of 2,736

Document Document Title
WO/2011/141036A1
The invention relates to a method for reprocessing steel scrap, wherein the steel scrap is preheated with the aid of exhaust gases arising in a melting furnace. In order to prevent dioxins, furans, or other problematic organic substances...  
WO/2011/135991A1
Disclosed is a valuable metal recovery method that has excellent valuable metal selectivity and recovery efficiency, and furthermore is capable of reusing materials that were used in the recovery of a valuable metal. The valuable metal r...  
WO/2011/122983A1
The invention concerns a method for extracting brass, zinc oxide and copper oxide from brass foundry slag by crushing the slag, mechanically purifying same and extracting a brass oxide film, which includes preparing a solution containing...  
WO/2011/122984A1
The invention relates to a facility for extracting brass, zinc oxide and copper oxide from brass foundry slag. The facility includes a slag preparation section comprising a furnace, a crusher, a magnetic separator, a vibrating screen and...  
WO/2011/122985A1
A line for extraction of brass, zinc oxide and copper oxide from brass slags relates to the field of non-ferrous hydrometallurgy, and may be used for the selective extraction from brass casting production wastes of brass, zinc oxide, cop...  
WO/2011/113997A1
The invention relates to a method and a reactor for purifying solid matter from the process solution (2) in the fluidized bed in the reactor, into which the process solution is fed to form the fluidized bed (4) in the essentially cylindr...  
WO/2011/106012A1
Presented is a method and apparatus for treating an exhaust gas. A series of filters and conditioning units are used to separate and extract various substances from the exhaust gas, typically originating from an industrial process. In an...  
WO/2011/076995A1
The invention relates to a method for treating the leaching residue containing iron and sulphur that is generated in the leaching of a sulphidic non-ferrous metal concentrate. The sulphur-containing leaching residue or part of it is rout...  
WO/2011/051674A3
The present invention concerns the condensing of vapour phase compounds or elements, typically metals such as magnesium, obtained by reduction processes. These include metallothermic and carbothermic processes. There is described a metho...  
WO/2011/069221A1
Physical-chemical process intended for the treatment of steel industry residues of electric arc furnaces (EAF), known as "aciary powder", for the recovery of zinc, iron and other metals of interest contained therein through obtaining sol...  
WO/2011/061408A1
The invention relates to a method for removing chloride from zinc sulphate solution in conjunction with zinc production. According to the method, the chloride is removed from solution by means of monovalent copper, which is produced in a...  
WO/2011/051674A2
The present invention concerns the condensing of vapour phase compounds or elements, typically metals such as magnesium, obtained by reduction processes. These include metallothermic and carbothermic processes. There is described a metho...  
WO/2011/040344A1
Disclosed is a method for producing briquettes, by which briquettes having enhanced strength can be produced even when the amount of a binder used therefor is reduced as much as possible. Specifically disclosed is a method for producing ...  
WO/2011/038746A1
The invention relates to a method for dezincifying zinced steel scrap, wherein the zinced steel scrap is brought into contact with an acidic solution, which is already pre-loaded with zinc ions. It has been shown that a significant accel...  
WO/2011/024244A1
Disclosed is a dezincing apparatus which comprises an induction heating vessel (50) that has an introduction opening for introducing steel sheet scraps (41) and is the outer vessel of the dezincing apparatus (2), induction heating coils ...  
WO/2011/020181A1
Calcium (Ca), manganese (Mn) and magnesium (Mg) carbonate plus lead (Pb) and zinc (Zn) sulphide minerals in a permeable host, crushed ore, concentrates or as mine discharge tailing are selectively solution mined (in-situ or ex-situ) with...  
WO/2011/016415A1
Disclosed is a liquid supply apparatus wherein the inner diameter (D2) of an outflow nozzle (14, 114) is set to a size which allows molten liquid (M) accommodated in a liquid storage container (10, 100, 200) to flow out under the weight ...  
WO/2010/150873A1
Disclosed is a method for efficiently and economically separating and recovering elements, such as copper, that coexist in scrap iron, wherein scrap iron is melted and the molten product of scrap iron obtained is brought into contact wit...  
WO/2010/143623A1
A method for water and metal recovery from a plating wastewater resulting from washing is disclosed with which water and metals are efficiently recovered from the plating wastewater, the method comprising an iron insolubilization step in...  
WO/2010/108212A1
A method for leaching zinc from a zinc-bearing carbonate ore, the method comprising the steps of: subjecting the zinc-bearing carbonate ore to elevated temperatures of between about 300°C and about 900°C thereby producing a roasted ore...  
WO/2010/016020A3
A method of production of Zinc dust, which includes melting Zinc products in a melting furnace on a semi-continuous basis, transferring at least a part of the molten Zinc products to a vaporizing furnace, vaporizing the molten Zinc in th...  
WO/2010/082065A3
A process for recovering a metal chloride or mixed metal chloride from a solid waste material comprising recoverable metal containing constituents produced by lead, copper or zinc smelting and refining processes, said process comprising ...  
WO/2010/086407A1
The invention relates to a method for treating alkaline and saline batteries including mechanically grinding said batteries to obtain a battery homogenate, at least one separation making it possible to isolate the black mass, acid leachi...  
WO/2010/082065A2
A process for recovering a metal chloride or mixed metal chloride from a solid waste material comprising recoverable metal containing constituents produced by lead, copper or zinc smelting and refining processes, said process comprising ...  
WO/2010/072773A1
The present invention relates to a method for eliminating halides, in particular chlorides and fluorides, from secondary zinc oxides, for example Waelz or Primus oxides, including the steps of (1) stripping the secondary zinc oxides with...  
WO/2010/074180A1
Disclosed is a method for manufacturing highly pure polycrystalline silicon by reducing chlorosilane with metallic zinc whereby a large amount of polycrystalline silicon can be produced continuously and stably while zinc chloride is proc...  
WO/2010/071932A1
A method for extracting zinc from an aqueous ammoniacal zinc solution containing impurities, the method comprising the steps of: (i) contacting the aqueous ammoniacal zinc solution containing impurities with an organic phase comprising a...  
WO/2010/064149A2
The present disclosure is directed towards systems and methods for the treatment of wastewater. A system in accordance with one particular embodiment may include at least one resin tank including an ion exchange resin configured to targe...  
WO/2010/064143A2
The present disclosure is directed towards systems and methods for the treatment of wastewater. A system in accordance with one particular embodiment may include a vacuum filter band system configured to receive a saturated ion exchange ...  
WO/2010/037169A1
This invention relates to a process for extraction of mined material including the steps of draining liquid from the mined material, and adding metal-binding particles to the drained liquid. The process is particularly well adapted for e...  
WO/2010/034465A1
The invention relates to a method for the selective acidic dezincification of steel scrap. The selective complete dezincification is achieved by adding oils, wherein the dissolution of iron by the autogenous inhibitory action of the oils...  
WO/2009/136299A8
The present invention regards a chemical process for treatment of industrial ironworks residue, generically called "steelworks powder", in order to make possible the subsequent recovery of zinc, iron and other interest metals there conta...  
WO/2010/023691A1
This invention relates to an improved method for processing high zinc iron ores for production of iron and steel comprising the steps of; producing agglomerate comprising a mixture of iron oxides, carbonaceous materials, and fluxes with ...  
WO/2009/156662A3
The invention relates to a method for processing metallurgical residue from electric steel mill dust essentially containing iron and zinc in the form of zinc oxide and zinc ferrites, to a processing of blast-furnace sludge, and to a comb...  
WO/2010/019062A1
According to this invention, a process for obtaining zinc, lead, gold and silver concentrate from a complex low - concentration ore. The process consists of several stages: three - staged basic grinding and two - staged classification, c...  
WO/2010/016020A2
A method of production of Zinc dust, which includes melting Zinc products in a melting furnace on a semi-continuous basis, transferring at least a part of the molten Zinc products to a vaporizing furnace, vaporizing the molten Zinc in th...  
WO/2010/005023A1
The objective is to manufacture briquettes with increased strength, even when using minimal quantities of binder and water. To achieve this, a briquette manufacturing method includes a process in which primary particulates are formed usi...  
WO/2009/136299A3
The present invention regards a chemical process for treatment of industrial ironworks residue, generically called "steelworks powder", in order to make possible the subsequent recovery of zinc, iron and other interest metals there conta...  
WO/2009/155651A1
A process for the treatment of a solution containing at least ferric ions, and one or more metal values, said process including the step of maintaining a controlled concentration of ferric ions in solution for a sufficient residence time...  
WO/2009/156662A2
The invention relates to a method for processing metallurgical residue from electric steel mill dust essentially containing iron and zinc in the form of zinc oxide and zinc ferrites, to a processing of blast-furnace sludge, and to a comb...  
WO/2009/145348A1
A method for producing pig iron by using high zinc-content iron ore includes steps of producing blast furnace feed (2) by using the high zinc-content iron ore containing 0.01 mass% or more zinc and 50 mass% or more iron, producing the pi...  
WO/2009/136299A2
The present invention regards a chemical process for treatment of industrial ironworks residue, generically called "steelworks powder", in order to make possible the subsequent recovery of zinc, iron and other interest metals there conta...  
WO/2009/131242A1
A process for the production of direct-reduced iron, which comprises a step of preparing a mixed raw material, a step of charging the mixed raw material, and a reduction step. The step of preparing a mixed raw material is conducted by p...  
WO/2009/129823A1
The invention relates to a method for recycling iron carriers containing zinc and/or lead, in particular iron residue materials from iron and steel production, wherein iron carriers containing zinc and/or lead are mixed with an additive ...  
WO/2009/110149A1
A process for the recovery of valuable metals from scrap IZO, characterized by conducting electrolysis by using an insoluble electrode as the anode and scrap IZO as the cathode to recover metallic indium and zinc or suboxides of both. Th...  
WO/2009/101863A1
A method of recovering valuable metals from an IZO scrap, characterized by using an insoluble electrode as an anode or cathode and using the IZO scrap as a cathode or anode, which serves as a counter electrode for the insoluble electrode...  
WO/2009/101864A1
A method of recovering valuable metals from IZO scraps, characterized by using the IZO scraps respectively as an anode and a cathode to conduct electrolysis while periodically reversing the polarity, and recovering the indium and zinc in...  
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/2009/050334A1
The invention relates to a method for recovering the valuable metals from sulphidic raw material containing at least copper and zinc by means of hydrometallurgical treatment. Copper sulphide and zinc sulphide are components of the raw ma...  
WO/2009/043961A1
The invention relates to a novel electric induction furnace design that enables the removal of zinc-containing filter dust (PF) originating from the production of alloy or non-alloy steel and the production of cast iron with galvanised s...  

Matches 101 - 150 out of 2,736