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Class 75/366 - Utilizing a fluidized bed


Subclass of Class 75 - Specialized metallurgical processes, compositions for use therein, consolidated metal powder compositions, and loose metal particulate mixtures
Definition: Process in which a material undergoing treatment is in a
No. of patents: 17
Last issue date: 03/29/2011


NumberTitleIssue Date
7914600Continuous production of titanium by the metallothermic reduction of TiCl
A method for production of titanium particles or other metal of interest by a metallothermic reduction reaction of TiCl4 or other metal chloride in a reaction zone which comprises conducting the reaction in a fluidized bed reaction zone, and recycling par...
03/29/2011
7837759Low temperature industrial process
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 magnesium chloride, wherein the...
11/23/2010
6955703Process for the production of elemental material and alloys
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 with a reducing agent in solid form in a fluidized bed reactor at a reaction temperature which is below the mel...
10/18/2005
6902601Method of making elemental materials and alloys
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 sufficient quantity to convert the...
06/07/2005
6586046Fluidized bed apparatus and method for treatment of nonspherical, nonequiaxed particles
Apparatus and method for producing metallic flake having an environmental coating for use in oxidative and corrosive atmospheres. Fluidized bed techniques are utilized to perform a controlled oxidation of metallic particles that include aluminum. The flui...
07/01/2003
6251158Production of granules of reactive metals, for example magnesium and magnesium alloy
A process of producing granules of a reactive metal. The process comprises providing a source of molten reactive metal (41), forming discrete droplets (53) of the molten metal, contacting the droplets while still substantially molten with a fluidized bed ...
06/26/2001
5958156Process for treating a particulate material within a rotating retort
Apparatus (1) and process for treating particulate material or powder (33) of a size capable of being fluidized in a retort (31) mounted for rotation on a pair of end axles (18, 41). Retort (31) is mounted on a tilt frame (5) for tilting movement in a ver...
09/28/1999
5626645Process for making silver metal filaments
A process for making silver metal particles from silver salt particles having the same morphology. Precursor silver salt particles selected from the group consisting of silver acetate and silver sulfide having a selected morphology are contained in a reac...
05/06/1997
5549732Production of granules of reactive metals, for example magnesium and magnesium alloy
A process of producing granules of a reactive metal. The process comprises providing a source of molten reactive metal, forming discrete droplets of the molten metal, contacting the droplets while still substantially molten with a fluidized bed of particl...
08/27/1996
5352269Spray conversion process for the production of nanophase composite powders
A process is described for the production of composite powders with ultrafine microstructures. The process involves three coordinated steps: 1) preparation and mixing of an appropriate starting solution; 2) spray drying to form a chemically homogeneous precursor po...
10/04/1994
5230729Carbothermic reaction process for making nanophase WC-Co powders
A new carbothermic reaction process is described for the thermochemical processing of nanophase WC-Co powders. The process permits shorter reaction times, reduced temperatures, and finer microstructures compared to conventional processing methods. The pro...
07/27/1993
5149514Low temperature method of forming materials using one or more metal reactants and a halogen-containing reactant to form one or more reactive intermediates
A low temperature process is described for forming a coating or powder comprising one or more metals or metal compounds by first reacting one or more metal reactants with a halide-containing reactant to form one or more reactive intermediates capable of r...
09/22/1992
5125964Fluidized bed process for preparing tungsten powder
Tungsten metal powder of controlled particle sizes is obtained in a fluid bed process by reducing particles of tungsten oxide having the formula WOX where x is from 2.5 to 3.0. The WOX powder particles are heated to and then maintain...
06/30/1992
4877445Method for producing a metal from its halide
A method for producing metal by the reduction of a metal halide by a reducing metal agent capable of continuously producing homogeneous metal of high purity. In the method, particles of the same metal as the metal to be produced are charged into a reactio...
10/31/1989
4659376Fluid bed reduction to produce molybdenum metal
Molybdenum trioxide in granular or powder form is reduced to molybdenum metal by stagewise fluid bed reduction wherein molybdenum trioxide is reduced to molybdenum dioxide using ammonia as the fluidizing-reducing gas at 400° C. to 650° C. and molybdenum...
04/21/1987
4415527Desulfurization process for ferrous powder
A method for producing a low carbon ferrous powder melt stock with a sulfur content of less than 5 parts per million is disclosed comprising the steps of atomizing molten steel into a powder, exposing the powder to a temperature of at least 2100° F. in a...
11/15/1983
3967986Method of preparing ferromagnetic material
A method of preparing iron powder for recording in which iron oxide hydrate powder is reduced by flowing hydrogen in intimate contact with the iron oxide hydrate powder, preferrably in a fluidized bed....
07/06/1976
 
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