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WO/2005/012584A1 |
There are provided a production process of nickel metal, which can enhance nickel oxide reduction efficiency and can realize reduced energy and cost, and high-purity nickel metal. The process comprises the step of performing a contact re...
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WO/2005/007906A1 |
A method for the production of metal powders or metal hydride powders of the elements Ti, Zr, Hf, V, Nb, Ta and Cr is disclosed, whereby an oxide of the said elements is mixed with a reducing agent and said mixture, optionally with a hyd...
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WO/2005/005674A1 |
The invention relates to a process for the separation and recovery of non-ferrous metals from zinc-bearing residues, in particular from residues produced by the zinc manufacturing industry. The process allows for the valorisation of meta...
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WO/2005/002766A1 |
The present invention relates to a method and apparatus for the production of titanium alloys and titanium-aluminium inter-metallic compounds and alloys. Starting from a precursor material including titanium subchloride (titanium trichlo...
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WO/2005/003397A1 |
A method of operating mechanical separation devices at high temperatures to separate various volatile metals, metal halides and metal oxides to produce high purity materials, in particular to recover zinc or zinc oxide from electric are ...
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WO/2005/001362A1 |
A process for converting a starting material into a final product by reaction of the starting material with a gas in a furnace at elevated temperature followed by cooling of the final product using a cooler, wherein, prior to introductio...
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WO/2004/113230A1 |
The present invention relates to a zero-waste process for extraction of alumina from différent types of bauxite ores and red mud residues and of titanium dioxide from ilmenite. Iron oxide is first reduced to metallic iron above the melt...
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WO/2004/113593A1 |
An electrolytic cell for electrochemically reducing metal oxide powders and/or pellets is disclosed. The cell includes a cathode (25) in the form of a plate that has an upper surface for supporting metal oxide powders and/or pellets. The...
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WO/2004/104233A1 |
The invention relates to a method for recovering metallic elements, especially metallic chromium, from slag containing oxides, especially chromium oxides, in an electric-arc furnace. According to said method, the slag is not reduced in a...
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WO/2004/101434A1 |
The invention relates to the metallurgical method of receiving the high purity silicon powder by chemical refinement and allows using it for production of solar cell, and silicon hydride in case of a need. To achieve the object, this exp...
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WO/2004/101828A1 |
The invention relates to a method for utilizing slag (2, 2'), which comes from the ironworks industry and which contains oxidic iron particles, involving an addition of a reducing agent (29) and the reduction of oxidic iron particles of ...
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WO/2004/101832A2 |
Methods of enhancing the segregation roast through the use of microwave radiation and chloride ions are disclosed. The processes provide means of recovering metals trapped in ores and slags by reaction of these materials with carbon, chl...
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WO/2004/099069A1 |
A method for reducing a metal oxide, characterized in that it comprises reducing a medium comprising an oxide of a metal capable of decomposing water to generate hydrogen and at least one metal selected from the group consisting of a pla...
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WO2001034858A9 |
A carbothermal process for the production of metals such aluminium, silicon, magnesium and the like from metal compounds, characterised in that the metal compound(s) such as oxide(s) or hydroxides are heated by combustion gases and inter...
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WO/2004/097055A2 |
This invention relates to a method and a plant for the heat treatment of solids, in particular for reducing solids containing iron oxide, in a fluidized-bed reactor (5, 30). For fluidizing the solids, fluidizing gas is introduced into th...
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WO/2004/092421A1 |
A method for producing reduced iron wherein a raw material feed step of charging a raw material containing a carbonaceous reducing agent and an iron oxides containing material into a rotating hearth furnace, a heating and reduction step ...
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WO/2004/090175A1 |
A first method for producing an improved coal which comprises heating and aging a low quality coal in an organic solvent to produce an improved coal for use in metallurgy having enhanced softness and fluidity as compared to the low quali...
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WO/2004/090173A1 |
A direct smelting plant for producing molten metal from a metalliferous feed material is disclosed. The plant includes a fixed smelting vessel to hold a molten bath of metal and slag and a gas space above the bath. The plant also include...
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WO/2004/083463A1 |
A process for producing particulate iron metal through the reducing fusion of a feed material mixture comprising an iron oxide-containing substance, e.g., iron ore, and a carbonaceous reducing agent, e.g., a carbon-containing material, i...
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WO2004018717A9 |
A milling apparatus is modified by electrically insulating the milling chamber to enhance the efficiency of tribochemical reactions between reactive compositions during milling. The enhanced level of tribochemical reactivity is attribute...
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WO/2004/081243A1 |
A method for recovering platinum group elements, wherein an oxide based raw material accompanying platinum group elements, a copper oxide, a solid carbonaceous reducing agent and a flux are charged into a gastight electric furnace equipp...
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WO/2004/081238A1 |
Agglomerates with carbonaceous material incorporated therein that contain a widely produced inexpensive high-VM coal of rich reserve and do not need metal oxide pulverization, excelling in strength after reduction; and a process for prod...
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WO/2004/081246A1 |
A hollow partition wall (4) is employed to feed carbon material to an underflow of a carbothermic reduction furnace used to make aluminum. The partition wall (4) divides a low temperature reaction zone (2) where aluminum oxide is reacted...
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WO/2004/070067A2 |
A method of forming a nanocrystalline metal, comprising the steps of: providing a reaction mixture comprising a metal precursor and an alcohol solvent; continuously flowing the reaction mixture through a reactor; applying microwave or mi...
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WO/2004/066338A1 |
An alkali metal generating agent (1) for use in forming a photoelectric surface emitting a photoelectron corresponding to an incident light or a secondary electron emission surface emitting a secondary electron corresponding to an incide...
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WO/2004/066339A1 |
An alkali metal generating agent (1) for use in forming a photoelectric surface emitting a photoelectron corresponding to an incident light or a secondary electron emission surface emitting a secondary electron corresponding to an incide...
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WO/2004/065641A1 |
A process for producing iron metal and slag by smelting iron-containing source material, having iron present as oxide and/or in a partially metallised state, in a reactor containing a molten bath comprising or having a slag phase, utilis...
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WO/2004/066337A1 |
An alkali metal generating agent (1) for use in forming a photoelectric surface emitting a photoelectron corresponding to an incident light or a secondary electron emission surface emitting a secondary electron corresponding to an incide...
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WO/2004/061138A1 |
A method for reducing a chromium containing raw material, which comprises subjecting a mixture comprising the chromium containing raw material and a carbonaceous reducing agent to radiation heating in a movable hearth furnace to reduce t...
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WO/2004/060594A1 |
The present invention relates to a process for the production of an elemental material, comprising the step of reacting a halide of the elemental material (9) with a reducing agent in solid form (1) in a fluidized bed reactor (2) at a re...
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WO/2004/056468A1 |
This invention relates to a method for the thermal treatment of granular solids in a fluidized bed (3, 3a) which is located in a fluidized-bed reactor (1, 1a), wherein microwave radiation is fed into the fluidized-bed reactor (1, 1a) thr...
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WO/2004/057042A1 |
A method for manufacturing molten iron including producing reducing material of mixed hot fine direct reduced iron and calcined additives, the reducing material being produced from multiple fluidized beds; charging the reducing material ...
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WO/2004/057039A1 |
The present invention relates to a method and a plant for the heat treatment of solids containing iron oxide, in which fine-grained solids are heated to a temperature of 700 to 1150°C in a fluidized bed reactor (8) . To improve the util...
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WO/2004/057040A1 |
The present invention relates to a method and a plant for the heat treatment of solids containing titanium and possibly further metal oxides, in which fine-grained solids are heated to a temperature of 700 to 950 °C in a fluidized bed r...
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WO/2004/056467A1 |
This invention relates to a method for the thermal treatment of granular solids in a fluidized-bed reactor (1), in which microwave radiation from a microwave source (2) is fed into the reactor (1), and to a corresponding plant. To improv...
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WO/2004/057044A2 |
A method for the heat treatment of solids containing iron oxide, in which fine-grained solids are heated to a temperature of about 630°C in a fluidized-bed reactor (1). To improve the utilization of energy, it is proposed to introduce a...
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WO/2004/055832A1 |
A method and apparatus for increasing hydrocarbon input to a direct reduction shaft furnace (12) while controlling the temperature uniformity of the center portion (26) of the burden within the furnace (12) wherein the hydrocarbon gases ...
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WO/2004/053173A1 |
A method for recovering a valuable metal from a waste containing V, Mo and Ni, which comprises a step of drying the waste containing V, Mo and Ni, a step of charging the dried waste containing V, Mo and Ni, Fe as a reducing agent, and a ...
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WO/2004/048621A1 |
The present invention relates to a process for the production of a metal or an alloy which comprises reducing a metal ore with a carbon material, where the carbon material is solid carbon produced from a carbon-containing gas.
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WO2004022797A9 |
A method and apparatus for making alloys or ceramics by the subsurface injection of equilibrium mixed halide vapor of a boiling liquid of the ceramic or alloys constituents into liquid alkali or alkaline earth metals or mixtures thereof ...
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WO/2004/042095A1 |
The present invention refers to a process for production of a powder of niobium and/or tantalum having high purity, large specific surface area, controlled contents of oxygen and nitrogen, and a morphology that is adequate for use in the...
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WO/2004/039523A1 |
A method for preparing a tantalum or niobium powder wherein a metal salt containing tantalum or niobium is reduced in a diluting salt, to thereby form tantalum or niobium, which comprises using a metal salt containing tantalum or niobium...
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WO/2004/037410A1 |
A metallic palladium having carbon as an interstitial atom which comprises the interstitial carbon in an amount of 0.16 mole or more relative to 1.0 mole of metallic palladium; a metallic palladium having carbon as an interstitial atom w...
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WO/2004/035873A1 |
An electrochemical cell for electrochemical reduction of a metal oxide in a solid state is disclosed. The cell includes a molten electrolyte (14), an anode (10) formed from carbon in contact with the electrolyte, a cathode (20) formed at...
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WO/2004/035845A1 |
A process for extraction of zinc from a material containing one or more iron oxides and zinc oxide includes heating a composite body of the material and a carbonaceous material in a reduction zone. The reduction zone contains a reducing ...
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WO/2004/031324A1 |
The invention relates to an apparatus for the treatment of a material under pyrolytical conditions, the apparatus comprising a housing for processing the material. The invention is characterised in that in the housing an extrusion screw ...
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WO/2004/029309A1 |
A method for removing oxygen from metal or metalloid oxides, by electrolysis in a fused salt, to produce elements or alloys, improved so as to prevent problems of cell contamination and poor power efficiency, particularly in scaled up el...
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WO/2004/026511A2 |
A needle valve is disclosed for controlling the quantity of a halide vapor (15) to be injected into a liquid metal (20). The needle valve may seat in a supersonic nozzle from which the halide vapor exits. Various products made with the a...
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WO/2004/024963A2 |
A method of producing an elemental material or an alloy thereof from a halide or mixtures of halides is provided. The halide or mixtures thereof are contacted with a reducing gas in the presence of reductant material, preferably in suffi...
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WO/2004/024961A1 |
A method for the reduction treatment of a metal oxide, characterized in that it comprises using, as a raw material, a powder containing a metal oxide, and an alkali metal and a halogen element, and further optionally carbon, mixing said ...
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