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WO/2008/083594A1 |
A lime-based additive for steel smelting, which is used in electric furnace refining and steel casting process for carburetion and deoxidation, comprises a lime-based material and a carbonaceous material, wherein the content of the lime-...
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WO/2008/080188A1 |
A mass of solid aluminium carbide containing product is produced by injecting particulate alumina into a bath (30) of molten aluminium metal; and injecting carbonaceous material, consisting of, containing or yielding carbon, into the bat...
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WO/2008/067614A1 |
A method for the recovery of a metal from composite particles comprising particles of the metal to be recovered dispersed in a matrix of another metal salt, which method comprises: a) forming a mixture by adding the composite particles t...
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WO/2008/059739A1 |
Briquette iron obtained by the hot-molding of reduced-iron particles, the reduced-iron particles being adherent to one another. The reduced-iron particles each has a surface region which has an average carbon content of 0.1-2.5 mass% and...
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WO/2008/052661A1 |
This invention relates to a single-step pyrometallurgical process for the recovery of non-ferrous metals from zinc bearing residues, in particular from by-products of the zinc and lead industry such as goethite and jarosite. A process fo...
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WO/2008/053460A1 |
The invention provides a process for the production of elemental' magnesium from feed materials containing magnesium oxide and carbon, said process comprising: exposing excess magnesium oxide and carbon to a high temperature reaction zon...
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WO/2008/046018A1 |
A process and apparatus are provided that allow metals including metals having stable oxide phases and metals with variable valencies to be extracted from their respective ores via an electrolytic process that is environmentally sound an...
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WO/2008/042997A1 |
A hearth furnace (10) for producing metallic iron material has a furnace housing (11) having a drying/preheat zone (12), a conversion zone (13), a fusion zone (14), and optionally a cooling zone (15), the conversion zone (13) is between ...
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WO/2008/041407A1 |
Disclosed is a method for producing a Ti granule or a Ti alloy granule, which comprises the step of contacting Ti particles or Ti alloy particles produced by the reduction in a molten salt with one another to produce the Ti granule or Ti...
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WO/2008/042996A1 |
A hearth furnace (10) for producing metallic iron material has a furnace housing (11) with a drying/preheat zone (12) capable of providing a drying/preheat atmosphere for reducible material, a conversion zone (13) capable of providing a ...
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WO/2008/037132A1 |
A process for iron smelting in blast furnace using purified oxygen and coal gas and its device. The process comprises the following steps: adding ore material composed of agglomeration, basic sintered ore, coke and flux into a blast furn...
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WO/2008/022546A1 |
A reducer comprises: a body composed of top (11), bottom (12) and side wall (13), in which, the bottom (12) is a sloping, there are a feed opening (14) and a discharge port (16) for metallic vapor near the top (11), and there is a residu...
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WO/2008/014538A1 |
A process for lead slag reduction subjects the slag to top-submerged lance injection of oxygen containing gas and fuel, via a vertically suspended lance having its lower tip end submerged in the slag. The injection generates a combustion...
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WO/2008/011788A1 |
A reduction retort (11) used in a vacuum metal refining reduction furnace comprises a retort (12), a condenser (13) arranged on one end of the retort, a charge end shield (14) hermetically connected to the condenser, and a discharge end ...
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WO/2008/011206A1 |
Systems and associated methods for carbothermically producing aluminum are provided, the systems generally including a reactor having a depth such that when the reactor contains molten liquid hydrostatic pressure of the molten liquid is ...
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WO/2008/009433A2 |
The present invention relates to a method for reducing metalliferous material to a reduction product. The invention also relates to an apparatus for reducing metalliferous material to a reduction product.
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WO/2008/010733A1 |
The invention relates to a process for the production of metal alloy powders, in particular the invention relates to a process for producing titanium metal alloys from titanium dioxide and aluminium. Optionally the process can also inclu...
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WO/2007/130483A2 |
Tantalum powder capable of providing a small-sized tantalum electrolytic capacitor while maintaining capacity is described. Fine tantalum particles with smooth surface are obtained by reducing potassium tantalum fluoride dissolved in mol...
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WO/2007/124870A2 |
The invention relates to a method for producing liquid pig iron or liquid steel intermediate products from fine-particled material containing iron oxide. The fine-particled material containing iron oxide is pre-reduced in at least one pr...
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WO/2007/122366A1 |
Steel and pigment-grade TiO2 with up to 99.99 % (TiO2 + ZrO2) are produced continuously by direct smelting ilmenite or titaniferous magnetite concentrates at ultra-high temperature. Both oxidic and metal phases are independently force ci...
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WO/2007/119846A1 |
A method of recovering useful materials from a scrap of a rare earth-iron-boron magnet by which iron and boron can be recovered as ferroboron from the rare earth-iron-boron magnet scrap and the rare earth element can be efficiently recov...
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WO/2007/109847A1 |
The present invention relates to a stepwise method for the production of titanium-aluminium compounds and some titanium alloys and titanium-aluminium inter-metallic compounds and alloys. In a first step an amount of aluminium is mixed wi...
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WO/2007/105616A1 |
A method by which a metal-fog-forming metal dissolved in a molten salt comprising a molten salt containing the metal-fog-forming metal can be removed and transferred to another molten salt to heighten the concentration thereof. The metho...
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WO/2007/099315A1 |
A process for reducing a metal-containing material, the process comprising: providing a metal-containing material (5), heating said metal-containing material by convective and/or conductive and/or radiative means (2), exposing said metal...
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WO/2007/097823A2 |
A method of winning a metal from its oxide ore by heating the ore in a partial vacuum or under an inert atmosphere in the presence of a reductant. The resulting product may be further reduced electrochemically to produce a purer metal. T...
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WO/2007/092994A1 |
A process for the leaching of metals from highly oxidised laterite ores. The ore is admixed with an acidic aqueous medium, preferably a solution of sulfuric acid and the resulting mixture is treated with a sulfur reducing agent so as to ...
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WO/2007/061012A1 |
[PROBLEMS] To provide a highly purified metal obtained by direct reduction of a metal oxide, or a metal with peculiar properties; a process for producing the same; and a relevant production apparatus. [MEANS FOR SOLVING PROBLEMS] There i...
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WO/2007/038840A1 |
A method for producing lead involves feeding lead concentrate, flux and solid fuel passing to a feed preparation unit (10). The prepared, mixed feed is then passed to a lead smelting furnace (14), such as an ISASMELT furnace or other top...
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WO/2007/034645A1 |
A process for producing Ti, comprising the reduction step of providing a molten salt containing CaCl2 and having Ca dissolved therein and reacting TiCl4 with the Ca to thereby form Ti particles, the separation step of separating the Ti p...
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WO/2007/003588A1 |
The invention concerns a method for reducing and liquefying metallic ores, and metallic residues, called product (8). The product (8) is moved through a body (11) by gravity and/or under the effect of a field of gradual electromagnetic w...
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WO/2006/133500A1 |
A process and apparatus for regeneration of acid and metal from spent acid liquors includes the steps of, optionally, concentrating (110) the liquor to a concentrated liquor or solid, pyrohydrolysing (114) to regenerate the acid and form...
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WO/2006/103944A1 |
In the production of Ti or a Ti alloy by reduction of Ca, a bath salt withdrawn from the step of reduction is electrolyzed, and Ca and the bath salt are recovered as a solid which is then transferred to the step of reduction. According t...
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WO/2006/101850A1 |
A method of preparing primary refractory metais (e.g., primary tantalum metal) by contacting a particulate refractory metal oxide (e.g., tantalum pentoxide) with a heated gas (e.g., a plasma), is described. The heated gas comprises hydro...
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WO/2006/097569A1 |
This invention relates to a process and a plant for the heat treatment of solids containing titanium. For this purpose, the fine-grained solids are heated to a temperature of 700 to 1000°C in a reactor (4) with circulating fluidized bed...
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WO/2006/092615A1 |
A cathode comprising an oxygen-containing compound, or a metal containing dissolved oxygen, is arranged in contact with a melt comprising a hydroxide of an alkali metal. An inert anode, advantageously comprising nickel, is also arranged ...
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WO/2006/089358A1 |
A process for producing a ferronickel product from a mixed nickel iron hydroxide product, said process including the steps of : a) providing a mixed nickel iron hydroxide product; b) pelletising the mixed nickel iron hydroxide product to...
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WO/2006/079132A1 |
The invention relates to a for method for reducing metal oxide slags or glasses and/or for degassing mineral melts. Said method is characterized by feeding solid particles and/or melts to an at least partially inductively heated bed or a...
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WO/2006/053418A1 |
A method of producing a fine, low bulk density nickel powder, comprising a) charging particles of at least one reducible nickel salt within a furnace so as to form a moving bed of furnace charge, and b) reducing the furnace charge with a...
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WO/2006/048283A1 |
In a process for producing titania slag from ilmenite, granular ilmenite first is partially reduced with a reducing agent in a reduction reactor, then the hot material with an inlet temperature of at least 550°C is transferred into an e...
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WO/2006/049050A1 |
A process for producing Ti through Ca reduction, comprising providing an apparatus including a reaction vessel for retaining a molten salt containing CaCl2 and having Ca dissolved therein, an electrolytic vessel for retaining a molten sa...
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WO/2006/042360A1 |
This invention relates to a method for producing titanium by reaction of titanium tetrachloride with magnesium in a reactor, wherein the temperature in the reactor is above the melting point of magnesium and below the melting point of ma...
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WO/2006/044713A2 |
A process is disclosed of placing a thin walled inserts in or around a core, casting a part about the core, and removing the core from the cast part while leaving the insert in the part to form one or more surface features of the cast pa...
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WO/2006/039999A1 |
The invention relates to a method for the deoxidisation of valve metal primary powders by means of reducing metals and/or metal hydrides and to a method for the production of tantalum powder which is suitable as an anode material for ele...
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WO/2006/040392A1 |
The invention relates to a method for fabricating metallic copper in connection with the chloride-based hydrometallurgical production of copper. In the method the copper raw material is leached using copper (II) chloride-alkali chloride ...
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WO/2006/041394A1 |
A method for recovery of metals or metal compounds from metal-bearing solid particles comprising volatile compounds comprises supplying the solid particles (50) through a flame (25) of a burner (20). The volatile compounds are then evapo...
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WO/2006/034802A1 |
The invention relates to the manufacture of high purity germanium for the manufacture of e.g. infra red optics, radiation detectors and electronic devices. GeCl4 is converted to Ge metal by contacting gaseous GeCl4 with a liquid metal M ...
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WO/2006/024135A1 |
A process for the production of extra fine spherical metal powders by chemical vapor deposition and dissolution techniques, including metal carbonyls, wherein the metal containing process gas is propelled upwardly through a heated reacto...
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WO/2006/010224A1 |
A process for producing a metal from the corresponding metal halide by reaction of the metal halide at elevated temperature in a reactor comprising a fluidised bed, the fluidised bed comprising seed particles of an inert material that ha...
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WO/2006/010223A1 |
A process of producing a metal from the corresponding metal halide by reaction of the metal halide with a reducing agent to form the metal and a halide of the reducing agent, the reaction taking place at elevated temperature and at atmos...
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WO/2006/009982A1 |
A method of producing a refractory metal powder by (A) combining (i) an oxide particle component and (ii) a reducing agent; (B) forming a substantially uniform mixture of (i) and (ii); (C) continuously feeding the mixture into a furnace;...
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