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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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WO/2004/033737A1 |
A system for producing an elemental material or an alloy thereof from a halide of the elemental material or halide mixtures comprising a reactor for introducing the vapor halide of an elemental material or halide mixtures thereof into a ...
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WO/2004/033760A2 |
An electrochemical cell for electrochemical reduction of a metal oxide, such as titania, in a solid state, is disclosed. The cell includes (a) a molten electrolyte (18), (b) a cathode (20) formed at least in part from the metal oxide in ...
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WO/2004/033748A2 |
A method to recover components of a sputter target assembly having a target bonded onto a backing plate is described. The method includes hydriding the tantalum or niobium target to a tantalum hydride or niobium hydride, respectively and...
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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/2004/028655A2 |
A method of separating metal particulates form a slurry of liquid metal and metal particulates and salt particulates by filtering the slurry to form a cake of metal and salt particulates with some liquid metal. The cake is broken and liq...
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WO/2004/029332A2 |
A method for purifying metal M1 particles manufactured by an electrochemical reduction process, the method comprising the steps of introducing the metal M1 particles into a heat source (13) at a temperature substantially equal to or high...
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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/2004/024995A1 |
A porous sintered compact of titanium oxide characterized in that it has a porosity of 20 to 65% and a hardness of 60 (HV) or higher, or characterized in that it has a porosity of 20 to 65%, a specific surface area of 0.1 to 5.0 m2/cm3, ...
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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/2004/024656A2 |
Disclosed herein is a process for reducing or substantially eliminating chromium in non-volatile residue obtained from a certain processes, and particularly from cyclohexane oxidation processes.
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WO/2004/022800A1 |
A method of separating metal particulates from a slurry of original constituents of liquid metal and metal particulates and salt particulates is disclosed. The metal and salt particulates are concentrated by removing at least some of the...
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WO/2004/022798A1 |
A transfer mechanism between a first vessel containing a slurry of liquid and solids and a second vessel under vacuum. A housing is in communication with the first and second vessels and contains a screw in which the volume between adjac...
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WO/2004/022799A1 |
A safety mechanism used in the subsurface exothermic reduction of a halide vapor with a liquid reducing metal. A reactor for introducing halide vapor into the liquid metal causing an exothermic reaction forming a slurry of excess liquid ...
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WO/2004/011685A1 |
A metallic article (20) is produced by furnishing one or more nonmetallic precursor compound comprising the metallic constituent element(s), and chemically reducing the nonmetallic precursor compound(s) to produce an initial metallic par...
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WO/2004/009857A1 |
A method of separating components from a metal based composite, the method including the steps of increasing the size of a component to be separated and separating the increased sized component from the other components of the composite.
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WO/2004/007775A2 |
The present invention provides a method of reducing metal oxide material to metal comprising the steps of forcibly circulating molten carrier material in a closed loop path serially through a charge reduction zone on one arm of the loop,...
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WO/2004/007808A1 |
A method for producing a niobium powder or a tantalum powder which comprises reducing a niobium oxide or a tantalum oxide with calcium in a molten calcium chloride; and an apparatus for producing a niobium powder or a tantalum powder whi...
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WO/2003/106082A1 |
A method for producing a metal powder wherein a compound of the metal is used as a raw material and the compound is reduced, characterized in that it comprises a forming process of mixing the metal compound with a binding agent, forming ...
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WO/2003/106080A1 |
An article (20) of a base metal alloyed with an alloying element is prepared by mixing a chemically reducible nonmetallic base-metal precursor compound of a base metal and a chemically reducible nonmetallic alloying-element precursor com...
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WO/2003/106081A1 |
A metallic article (20) made of metallic constituent elements is fabricated from a mixture of nonmetallic precursor compounds of the metallic constituent elements. The mixture of nonmetallic precursor compounds is chemically reduced to p...
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WO/2003/102254A1 |
A method by which tantalum compounds and niobium compounds dissolved in water such as a liquid detergent are insolubilized and recovered. An aqueous solution containing tantalum compounds and/or niobium compounds dissolved therein is reg...
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WO/2003/099491A1 |
A method for producing a metal powder which involves feeding a metal as a raw material continuously or intermittently to a chlorination furnace, to form a metal chloride vapor continuously, and reacting the metal chloride vapor with a hy...
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WO/2003/097533A1 |
A process for reducing the amount of impurities in a zirconium containing material, said process including the step of treating the zirconium containing material with a composition, substantially including a borate salt or mineral, at a ...
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WO/2003/089674A2 |
Processes for the efficient and economical beneficiation of titaniferous ore are provided. A unique process for beneficiating ore comprising pretreatment of the ore by oxidation and reduction, followed by acid leaching with sulfuric acid...
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WO/2003/076690A1 |
A method of reducing a metal oxide, such as titania in a solid state in an electrolytic cell is disclosed. The electrolytic cell includes an anode, a cathode, and a molten electrolyte. The electrolyte includes cations of a metal that is ...
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WO/2003/076692A1 |
An electrolytic cell for reducing a metal oxide, such as titania, in a solid state is disclosed. The electrolytic cell includes an anode formed from carbon and a cathode formed at least in part from the metal oxide. The electrolytic cell...
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WO/2003/076671A1 |
Methods to control hydrogen sulfide and/or arsine emissions are described. The method involves adding at least one copper compound (such as a copper (II) compound) to the material, such as material containing sulfur in a sufficient amoun...
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WO/2003/072503A1 |
A method of purifying a niobium compound and/or tantalum compound, characterized by crystallizing the niobium compound and/or tantalum compound from a solution thereof. In the purification method, examples of the niobium compound and/or ...
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WO/2003/072504A1 |
A purification method for producing a high purity niobium compound and/or tantalum compound, characterized in that it comprises adding an organic compound to an aqueous solution having, dissolved therein, a niobium compound and/or tantal...
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WO/2003/072505A1 |
A purification method for producing a high purity niobium compound and/or tantalum compound, characterized in that it comprises forming a niobium compound and/or a tantalum compound by the use of a crystal obtained by crystallization fro...
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WO/2003/072275A1 |
A wet method for treating a petroleum−originated combustion ash which comprises a step of preparing a combustion ash slurry, a metal oxidation step of preparing a slurry containing ammonium m−vanadate, a solid−liquid separation ste...
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WO/2003/068435A1 |
This invention discloses a process for preparing tantalum powder and&sol or niobium powder having high specific surface area. The process is carried out by reducing the oxides of tantalum and&sol or niobium, in which at least one halide ...
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WO/2003/068693A2 |
Processes for treating iron containing waste streams are provided. According to these processes, metal-containing compounds, particularly iron oxides are produced. These methods may, for example, be used in the porcessing of the waste st...
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WO/2003/066915A1 |
A method of recovering metal and/or oxide thereof from a slurry is described. The method involves magnetically separating at least a portion of any magnetic impurities from the slurry and then leaching or dissolving at least a portion of...
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WO/2003/066914A1 |
A high−purity spongy titanium material containing less amounts of oxygen and metal elements is economically produced. The vacuum separation time t in a vacuum separation step is t = tO &plus 15 to &plus 35 hour where tO is the time fro...
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WO/2003/062480A1 |
The invention relates to a method for production of metals or metal alloys of high purity, in particular metallic chrome, whereby metallic elements are treated under pre-determined conditions of temperature and pressure. Said elements co...
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WO/2003/062479A1 |
The invention relates to a method for production of metal or metal-alloy elements of high purity, in particular chromes, characterised in comprising the following method steps: production of a metal or a metal alloy with non-metallic inc...
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WO/2003/062492A1 |
Zirconium sponge can be chemically depassivated by treatment with hydrofluoric acid to improve the ability of molten magnesium/magnesium alloy to dissolve zirconium from the treated zirconium sponge and to form a melt containing substant...
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WO/2003/056045A1 |
A method is provided for the removal of chromium from leach liquors produced during high pressure leaching of laterite ores in an autoclave, by addition to the autoclave of carbon in a quantity of about 0.5% - 1% by weight with reference...
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WO2002061168B1 |
The invention encompasses methods of forming titanium-based mixed-metal materials and zirconium-based mixed-metal materials utilizing one or more of a reduction process, electrolysis process and iodide process. The invention also encompa...
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WO/2003/048400A2 |
A method of treatment or purification of a molybdenum concentrate also containing copper, comprises the step of subjecting the molybdenum concentrate to pressure oxidation in the presence of oxygen and a feed solution containing copper (...
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WO/2003/048399A2 |
A solid material (M1X) (6) comprising a solid solution of a non-metal species (X) in a metal or semi-metal (M1) or a compound between the non-metal species and the metal or semi-metal is immersed in a molten salt (M2Y) (4). A cathodic po...
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WO/2003/046235A1 |
The invention relates to the hydro-metallurgical processing of titanium-rear metal concentrates, more specifically to breaking down a loparite concentrate. The inventive method consists in hydrochloric acid leaching at atmospheric pressu...
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WO/2003/046258A2 |
This invention relates to a method for electrowinning of titanium metal or titanium alloys from electrically conductive titanium mixed oxide compounds in the liquid state such as molten titania slag, molten ilmenite, molten leucoxene, mo...
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WO/2003/046234A1 |
The invention relates to the hydro-metallurgical processing of ore concentrates, more specifically to the processing of a loparite concentrate, and can be used for the complex extraction of titanium, niobium and tantalum compounds theref...
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WO/2003/046236A1 |
The invention relates to the hydro-metallurgical processing of ore concentrates, more specifically to the processing of a loparite concentrate, and can be used for the complex extraction of titanium, niobium and tantalum compounds theref...
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WO/2003/040418A1 |
A method for producing a titanium material of a low oxygen content from a sponge titanium prepared by the kroll method, characterized in that a sponge titanium after separation under vacuum is cooled in a reaction vessel, a nitride film ...
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WO/2003/038156A1 |
A method for smelting a titanium metal (Ti) wherein titanium oxide (TiO2) is subjected to thermal reduction to produce a titanium metal, characterized in that it comprises charging a mixed salt of calcium chloride (CaCl2) and calcium oxi...
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WO/2003/031665A2 |
A preform (28) is slip-cast or pressed from a metal compound or a mixture of metal compounds, sintered in air, vacum, or inert gas, and is electrolytically reduced in a bath (20) of molten salt to form a porous metal or alloy product. Th...
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