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WO/2005/019501A2 |
A system for purification of high value metals comprises an electrolytic cell in which an anode formed of a composite of a metal oxide of the metal of interest with carbon is electrochemically reduced in a molten salt electrolyte.
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WO/2005/019485A1 |
A method and apparatus are disclosed for continuously separating a metal powder from a slurry of liquid metal and salt and metal powder. Liquid metal is incrementally expressed to form a cake of metal powder and salt and some metal. Then...
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WO/2005/017233A2 |
An insulated cold retort or hearth for producing refined metal from raw metal contaminated with high density inclusions and/or hard alpha particles. The hearth has a hollowed body with a rectangular bottom wall and respective upstanding ...
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WO/2005/014888A1 |
An oxide electrolyzing electrolysis device comprising a common cathode (12) and two types of anodes (a first anode (14) provided below the cathode and a second anode (16) provided in parallel to the cathode) that are shaped and arranged ...
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WO/2005/014867A2 |
The invention relates to the use of TiO2 residues from a sulfate method used in metallurgical processes or as a component of fireproof materials. According to the invention, the TiO2 residues are dried and added without further mixing wi...
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WO/2005/010220A1 |
A method for producing highly pure hafnium, which comprises providing an aqueous solution of a chloride of hafnium, removing zirconium from the resultant solution by the solvent extraction, neutralizing the resultant solution to give haf...
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WO/2005/010238A1 |
This invention discloses and claims the low temperature reduction and purification of refractory metals, metal compounds, and semi-metals. The reduction is accomplished using non-aqueous ionic solvents in an electrochemical cell with t...
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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/2005/007903A1 |
A method for recovering at least one platinum group metal (PGM) species from a feed product selected from the group consisting of chromite ore, chromite ore concentrate and PGM concentrate comprising the steps of : mixing the feed with a...
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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/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/2004/104239A1 |
A process for beneficiating a titaniferous slag comprising submitting said slag to at least one magnetic separation resulting in a more magnetic fraction and a less magnetic fraction, the less magnetic fraction being enriched in Ti02 and...
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WO/2004/104518A1 |
A method to determine the concentration ratio of carbon monoxide to carbon dioxide in the gaseous product of a fluidized bed reactor (10) for producing titanium tetrachloride. The hot fluidized bed of the reactor is used as the source of...
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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/2004/099079A1 |
A method of producing an electrolytic solution containing vanadium as positive and negative electrode active material, with the electrolytic solutions being suitable for a redox battery. The method includes: (1) dissolving vanadium compo...
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WO/2004/096707A1 |
A process is described for treating the residues from metal chlorination processes wherein valuable volatile metal chlorides or metalorgano chlorides are recovered while low volatility metal chlorides and chloride complexes are reacted w...
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WO/2004/094312A1 |
A method of purifying a metal salt which comprises contacting a metal salt in a molten state (an alkali metal salt, an alkaline earth metal salt or a mixture thereof) with titanium or the like to thereby adsorb impurities in the metal sa...
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WO/2004/095501A2 |
The invention relates to a process for making a cross-directionally worked molybdenum plate, the process comprising: (a) reducing ammonium molybdate and forming molybdenum metal powder; (b) consolidating a molybdenum component comprised ...
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WO/2004/090179A1 |
Abstract Disclosed is a method of recovering a vanadium oxide flake from diesel oil fly-ash or Orimulsion fly-ash, including the steps of leaching a mixture of diesel oil fly-ash or Orimulsion fly-ash and water in an agitation leaching b...
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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/2004/076496A2 |
An improved process for producing titanium dioxide by reacting a titanium dioxide ore with chlorine to produce a gaseous stream containing titanium tetrachloride, condensing titanium tetrachloride from the gaseous stream containing titan...
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WO/2004/070066A1 |
A method for increasing the chrome to iron ratio of a chromite product selected from the group consisting of ore and ore concentrate comprising the steps of mixing the chromite product with at least one salt so as to produce a mixture, w...
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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/2004/058431A2 |
A method and apparatus for optimizing melting of titanium for processing into ingots or end products. The apparatus provides a main hearth (56), a plurality of optional refining hearths, and a plurality of casting molds (58a, 58b) or dir...
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WO/2004/058636A1 |
The present invention relates to a process for recovering chlorine from a feed stream containing metal chlorides using a tubular reactor wherein a hot oxygen containing gas has an initial velocity such that the resulting velocity of the ...
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WO/2004/057043A1 |
The invention relates to a process for purifying inorganic materials by treating the materials with a solution of hydrogen fluoride in aqueous hydrofluorosilicic acid. The process involves treating an inorganic material containing at lea...
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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/2004/054686A2 |
A novel, circumferential air knife is provided which injects a gas stream along the inside walls of the air knife. The air knife can be advantageously placed at or near the entrance to a suspension vessel to reduce buildup of solid mater...
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WO/2004/053201A1 |
A process for electrochemically reducing a metal oxide, such as titania, in a solid state in an electrochemical cell that includes a bath of molten electrolyte, a cathode, and an anode, which process includes the steps of: a) applying a ...
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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/2004/052778A2 |
A process and apparatus for the synthesis of metal oxide nanopowder from a metal compound vapour is presented. In particular a process and apparatus for the synthesis of Ti02 nanopowder from TiCl4 is disclosed. The metal compound vapour ...
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WO/2004/050928A1 |
A method for refining a titanium metal containing ore such as rutile or ilmenite or mixtures to produce titanium ingots or titanium alloys and compounds of titanium involves production of titanium tetrachloride by processing the ore with...
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WO/2004/050955A2 |
The invention provides a process for the separation of metals, the metals being comprised as the metal oxides in a mixed oxide sample, the process comprising: (i) adding the mixed oxide to a molten salt electrolyte and cathodically elect...
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WO/2004/048622A1 |
A system and method of separating metal powder from a slurry of liquid metal and metal powder and salt is disclosed in which the slurry is introduced into a first vessel operated in an inert environment when liquid metal is separated fro...
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WO2004022269A9 |
A method of controlling the size and morphology of powder made by the subsurface injection of a halide vapor into a liquid metal is disclosed. A reaction zone is established and the temperature thereof or the time the powder remains ther...
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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/2004/040027A1 |
The present invention relates to a process for simultaneous recovery of chromium and iron from Chromite Ore Processing Residue (COPR) and more particularly, the present invention relates to an economical and environment-friendly process ...
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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/2004/037470A1 |
Niobium powder from which a niobium capacitor of excellent electrical properties can be manufactured. The niobium powder when formed into a sintered body of 3.15 to 3.9 g/cm3 density exhibits a capacitance (CV value at a formation voltag...
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WO/2004/038048A1 |
The invention relates to a method and device for carrying out a tribochemical reaction, during which Faraday instabilities are produced by the spatial to-and-fro movement of a medium that is granular, grainy or made of balls. Tribochemic...
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WO/2004/035841A1 |
A sulfate process for producing titania from a titaniferous material is disclosed. The process includes leaching the titaniferous material and producing a leach liquor, separating titanyl sulfate from leach liquor, hydrolysis of the extr...
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WO/2004/035843A1 |
A sulfate process for producing titania from a titaniferous material is disclosed. The process includes leaching the titaniferous material and producing a leach liquor, precipitating iron sulfate from the leach liquor, solvent extraction...
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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/2004/035842A1 |
A sulfate process for producing titania from a titaniferous material is disclosed. The process includes leaching the titaniferous material and producing a leach liquor, separating titanyl sulfate from leach liquor, hydrolysis of the extr...
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WO/2004/033730A1 |
A method for producing a titanium containing slag, which comprises heating a raw material mixture containing a titanium oxide, an iron oxide and a carbonaceous reducing agent or another raw material mixture further containing a calcium o...
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WO/2004/033736A1 |
A system and method of producing an elemental material or an alloy from a halide of the elemental material or halide mixtures. The vapor halide of an elemental material or halide mixtures are introduced into a liquid phase of a reducing ...
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