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WO/2012/057686 |
This invention concerns a method during the oxidation and sintering of pellets (1 ) arranged in a compartment (2) in which the sintering takes place with the aid of a medium with a high temperature, which medium heats the pellets (1 ). T...
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WO/2012/057685 |
This invention concerns a method for the heating of a medium in a compartment 1 in which pellets 2 are arranged to be oxidised and sintered with the aid of the hot medium. The method comprises the introduction of a first medium 3 into th...
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WO/2012/057593 |
The invention relates to the production of ferroalloys, and specifically to methods for producing high-carbon ferrochrome in an ore-reducing electric furnace. The problem to be solved is the involvement in the production process of mater...
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WO/2012/057687 |
This invention concerns a method for the oxidation and sintering of pellets 1 arranged in a compartment 2 in which the oxidation and sintering take place with the aid of a medium with a defined temperature, which medium heats the pellets...
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WO/2012/053915 |
The present invention relates to a process of gold and copper recovery from gold-containing copper ores obtained from mixed oxide-sulfide copper ore bodies by a series of flotation stages. More specifically, the present invention relates...
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WO/2012/053614 |
A copper concentrate treatment method characterized by comprising: a roasting step of roasting an enargite (Cu3AsS4) or a copper concentrate mainly composed of an enargite at 550-700°C in an inert gas atmosphere; and a leaching step of ...
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WO/2012/049974 |
This process for producing reduced iron comprises: a kneading step of adding water having a temperature of 60-90˚C inclusive to a mixture comprising a powdery iron oxide raw material and a powdery reducing material and kneading the resu...
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WO/2012/046848 |
This process for producing granules of an iron ore raw material involves a step of adding 0.01-10 parts by mass of a polymeric surfactant having both a hydrophobic group and an acidic functional group and having a molecular weight of 100...
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WO/2012/047041 |
Disclosed are fine direct reduced irons containing iron carbide and a preparation apparatus thereof. The fine direct reduced irons containing iron carbide of the present invention contains 20-30 wt% of iron carbide by reducing poorly red...
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WO/2012/038603 |
The invention relates to a method and equipment for starting up a strand sintering furnace (1). During start-up, the sintering furnace is heated in order to create suitable production temperatures in the different process zones (I-VII) h...
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WO/2012/038602 |
The invention relates to a method and equipment for the continuous sintering of mineral material in a sintering furnace (S). In the method, a material bed (2) is formed on a conveyor base (1), the material bed (2) is conveyed by the conv...
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WO/2012/034179 |
A mining operation for producing a product of a required customer specification includes at least one mine, a shipping facility for shipping a product produced from material mined at the mine to a customer specification, and a transporta...
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WO/2012/034180 |
A method of blending mined and/or stockpiled material from different sections of one mine and/or from more than one mine includes dry sorting mined and/or stockpiled material and producing an upgraded material, and blending the upgraded ...
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WO/2012/034255 |
A method for extracting gold coated by gangue comprises the following steps: grinding and classifying gold ore to obtain ore pulp; oxidizing and decomposing sulphide minerals and gangue in the ore pulp to fully expose and dissociate gold...
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WO/2012/032073 |
The invention relates to an annular machine for the thermal treatment of solids, in particular for producing pellets from iron ore, comprising a plurality of gas-permeable gratings (1a, 1b) which are supported by a support structure (2a-...
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WO/2012/032256 |
The invention relates to a method for recycling dust from electric steel plants, originating from the furnaces of secondary-smelting electric steel plants, in which a portion of the dust collected after smelting in the electric furnace i...
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WO/2012/031379 |
A method for extracting gold through low-temperature roasting is provided. The method includes the following steps: feeding the material to be roasted into a roasting furnace through feeder, uniformly supplying gas for the material layer...
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WO/2012/032927 |
In the invention, a cementite-containing product is produced by heating an iron oxide-containing substance, a carbonaceous reducing agent and an oxidizing agent at 400-900°C. Reduced iron is then produced by heating an agglomerate conta...
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WO/2012/029947 |
The purpose of the present invention is to provide a rotary hearth furnace exhaust gas duct apparatus which produces reduced iron or granular metal iron by heating a raw material containing a carbonaceous reduction material and an iron o...
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WO/2012/026542 |
In the present invention: water and a sufficient quantity of a binder (D) for caking a metal oxide (A), which is the main component, and a carbonaceous material (B), are added to a powdered raw material (C) containing the metal oxide (A)...
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WO/2012/019216 |
A composite product and a method of manufacturing the composite product are disclosed. The composite product includes (a) a polymeric material binder and a metal- bearing material or (b) the polymeric material binder and a carbon-bearing...
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WO/2012/016286 |
An apparatus for sorting mined material, such as mined ore, includes an applicator for exposing fragments of a material to electromagnetic radiation and an assembly for distributing fragments from the applicator so that the fragments mov...
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WO/2012/015066 |
Provided is an advantageous method for producing a starting material for sintering, wherein it is possible to improve productivity compared to conventional methods by effectively using ultrafine limestone powder and high-carbon dust duri...
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WO/2012/015065 |
Provided is a method for producing a starting material for sintering, wherein it is possible to improve productivity compared to conventional methods by effectively using high-carbon dust during the process in which the surfaces of preli...
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WO/2012/015063 |
Provided is a method for producing a starting material for sintering, wherein it is possible to improve productivity compared to conventional methods by effectively using ultrafine limestone powder and high-carbon dust during the process...
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WO/2012/015067 |
Provided is a method for producing a starting material for sintering, wherein it is possible to improve productivity compared to conventional methods by effectively using high-carbon dust during the process in which the surface of pseudo...
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WO/2012/014685 |
Provided are: a process for producing ferronickel from a nickel sulfide material produced by a wet refining of a lateritic nickel ore or a scrap or a work-in-process material or from a mixed sulfide material containing nickel and cobalt....
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WO/2012/010254 |
The invention relates to a method for agglomerating residual substances, in particular scale and mill scale, containing iron oxide, wherein the residual substances and paper sludge are dried and comminuted and agglomerates are produced f...
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WO/2012/006660 |
A method for the pyrometallurgical processing of nickel-containing material using a fluxing composition comprising calcium.
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WO/2012/007277 |
A cooling device for hot bulk material (1) has a cooling tower (2) with a vertical main axis (3), said hot bulk material (1) being cooled in the cooling tower by means of a gas flow (4). The device has a feeding device (5) by means of wh...
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WO/2012/004284 |
The instant invention discloses a method for the valorization of spent catalyst from hydrocarbon processing slurry reactors as well as slurry flakes.
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WO/2012/004284 |
The instant invention discloses a method for the valorization of spent catalyst from hydrocarbon processing slurry reactors as well as slurry flakes.
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WO/2012/002338 |
A process for producing a molten steel (G) is disclosed in which particulate metallic iron can be more efficiently melted. The process includes the step of melting, in an electric arc furnace (2), all charge for iron which comprises: par...
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WO/2011/161597 |
A process for upgrading a precious metals-containing concentrate or residue results in near-quantitave removal of base metals and several impurity elements at elevated temperatures. The precious metals- containing concentrate or residue ...
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WO/2011/158338 |
Provided is a green pellet (10) which comprises: an inner core layer (11) containing an iron oxide-containing starting material, a carbonaceous material for reduction, and a slag-forming agent; and a coating layer (12) disposed so as to ...
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WO/2011/155417 |
Disclosed is a granular metal production method that further increases granular metal productivity, wherein agglomerates containing a metal oxide and a carbonaceous reducing agent are heated to reduce and melt the metal oxide contained i...
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WO/2011/156121 |
A method is provided herein for performing a leaching process on a substrate (113). In accordance with the method, a freeze wall (115) is created which isolates a portion (117) of a substrate, and the isolated portion of the substrate is...
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WO/2011/150984 |
Method for the recovery of noble metals comprising the steps of subjecting ore particles to an electrolytic bath (1) enhanced by an ultrasonic bath (2), the electrolytic bath (1) comprising heavy and/or semi-heavy water; shock heating th...
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WO/2011/141036 |
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...
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WO/2011/137575 |
A method and apparatus for separating molten dust from high temperature gas and applications thereof are disclosed. The method includes the following steps: washing the inside wall of the adhesion separator with the high temperature gas ...
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WO/2011/138954 |
Disclosed is a technique for preventing the fixation of metal iron and/or wustite (which is a material produced by the thermal reduction of iron oxide contained in a powder derived from an aggregated mass that comprises, as a raw materia...
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WO/2011/136556 |
Provided is an additive composition for metal sintering, which comprises an alkali metal compound that is added together with calcium carbonate constituting a melting accelerator for lowering the melting point in the process of sintering...
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WO/2011/136556 |
Provided is an additive composition for metal sintering, which comprises an alkali metal compound that is added together with calcium carbonate constituting a melting accelerator for lowering the melting point in the process of sintering...
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WO/2011/132628 |
Disclosed are a method for melting aluminum powder and a melting apparatus capable of melting aluminum powder with a high yield and making it possible to reuse the melted aluminum in a variety of applications. The method for melting alum...
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WO/2011/133132 |
A multiphase composite system is made by binding hard particles, such as TiC particles, of various sizes with a mixture of titanium powder and aluminum, nickel, and titanium in a master alloy or as elemental materials to produce a compos...
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WO/2011/127548 |
It describes a process for application of alcoholic derivative on heat treated pellets for inhibition of particulate emission comprising the steps of: a) weighing the amount of heat treated pellets discharged from furnaces; b) measuring ...
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WO/2011/127672 |
A method for producing metallic magnesium by vacuum reduction comprises the following steps: calcining dolomite, magnesite, brucite and limestone respectively, compounding MgO and CaO thereof in a molar ratio of more than 1, grinding and...
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WO/2011/129388 |
A process for producing a sintered mineral, in which a surface-coated carbon material is contained in a coal blend as a sintering fuel, wherein the surface-coated carbon material is produced by coating the surface of a carbon material wi...
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WO/2011/118822 |
Disclosed is a method for producing a sintered ore, which involves: forming a charged layer by charging a sintering starting material comprising fine ore and a carbon material on a circulating pallet; igniting the carbon material on the ...
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WO/2011/118738 |
Disclosed is a carbon-material-containing iron oxide briquette composition that, when obtaining reduced iron by heating in a moving hearth reduction furnace, does not turn into powder in the furnace leading to an accumulation of powder, ...
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