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7494637 |
Thermal conversion of biomass to valuable fuels, chemical feedstocks and chemicals
A continuous process for the conversion of biomass to form a chemical feedstock is described. The biomass and an exogenous metal oxide, preferably calcium oxide, or metal oxide precursor are...
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6042622 |
Process for crystallization of alkali metal bicarbonate salts
Alkali metal bicarbonate salts, e.g., sodium bicarbonate, are crystallized from aqueous solutions thereof in the presence of a crystal growth promoting amount of lecithin or lecithin containing...
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5898402 |
Wide aperature radio frequency data acquisition system
This invention relates to a wide aperture radio frequency data acquisition system which collects coherent samples from multiple points in a defined plane at the surface of the ground. The...
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5451557 |
Precursor for forming metal carbide catalysts
A process for forming a metal carbide catalyst, for example, a Group VIB transition metal carbide, such as tungsten carbide, which may be on a support, which process comprises the calcination of a...
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5204071 |
Method and apparatus for producing carbide products
An apparatus is provided for producing a product comprising a carbide compound, such as for example silicon carbide. A reactor is provided which has a chamber defined therein which is divided into...
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5171549 |
Process for decreasing the level of impurities in zirconium chloride, titanium chloride and hafnium chloride
An improved halogenator process and system is provided which significantly and economically decreases the level of impurities in the processing of various refractory metals and their halides and...
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5107517 |
Melting furnace
A furnace for producing a melt for mineral wool production includes a shaft for preheating and melting of the raw material. A water-cooled grate is disposed in the bottom portion of the shaft,...
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4752456 |
Process for preparing metal carbides and precursors thereof
A carbon-containing mixture is obtained by collecting a dispersed phase mixture from an aerosol which has been formed by introducing a decomposable carbon compound and a decomposable metallic...
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4594236 |
Method of manufacturing calcium carbide from powdered lime and/or limestone
Calcium carbide is prepared from a powdered lime material. The powdered lime material, possibly together with a reducing agent, is injected with the aid of a carrier gas into a plasma gas generated...
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4505787 |
Process for production of a carbide by-product with microwave energy and aluminum by electrolysis
Means and method for utilizing radiated electromagnetic energy to elevate at least one of two or more reactants 16 to a temperature at which a chemical reaction will take place so as to provide a...
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4472367 |
Method for the carbothermic reduction of metal oxides using solar energy
An apparatus and process are disclosed for utilizing solar radiation and the energy contained therein for the carbothermic reduction of a metal oxide to a metal carbide. The apparatus comprises a...
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4391786 |
Production of calcium carbide
The invention relates to a process for making calcium carbide by reacting an excess of coke with quicklime in the presence of oxygen in an oxygen-thermal furnace. To this end, the invention...
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4301133 |
Method for preparing a calcium carbide product
A product suitable for the production of fuel gas upon reaction with water which is prepared by reacting a uniform mixture of finely divided calcium oxide and carbon under pressure in the presence...
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4221762 |
Apparatus for preparing carbides
Apparatus for preparing carbides from a powdered charge of carbon and oxygen-containing compounds of elements that can form carbides comprises an inductor for the induction heating of the charge to...
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4213955 |
Computerized process and apparatus for use with a submerged arc electric furnace to produce metallurgical products
The invention relates to a computerized process and apparatus for automatically regulating the power, feed rate and electrode position of hollow or solid electrodes in submerged arc electric...
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4137295 |
Carbide production using molten metals as heat source
A process for carrying out highly endothermic chemical reactions wherein a reactive metal or a compound thereof is reacted with a source of carbon to form a carbon-containing derivative, preferably...
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3623839 |
METHOD OF MAKING ALKALINE EARTH METAL CARBIDE
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RE12519 |
Title is not available
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RE11511 |
Title is not available
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3565808 |
PROCESSES FOR OBTAINING HIGH YIELDS OF CARBON FROM PETROLEUM RESIDUUMS AND FOR THE MANUFACTURE OF HIGH CARBON CONTENT AGGREGATES
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3460925 |
ANTHRACITE TO ACETYLENE CONVERSION PROCESS
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3181999 |
Heat treating method and means utilizing nuclear energy
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3144413 |
Calcium carbide manufacture
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3065050 |
Process of producing fluorine compounds from fluorine-containing minerals and the like
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3044858 |
Calcium carbide process
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3017244 |
Oxy-thermal process
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3012970 |
Method of preparing a charge for a furnace
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3010796 |
Electric furnace operation
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2996360 |
Calcium carbide production
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2978315 |
Electrical heating process and apparatus
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2961411 |
Process for producing metallurgical furnace charge material
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2953518 |
Coking oil with a fluidized bed of calcium oxide
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2950956 |
Process for production of calcium carbide and hydrogen
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2886411 |
Process for the manufacture of calcium carbide and calcium cyanamide
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2883268 |
Method of electric smelting reducible materials
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2863730 |
Method of carrying out high temperature reactions in shaft furnaces
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2860037 |
Process for production of calcium carbide and phosphorus
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2858197 |
Process and apparatus for the production of calcium carbide
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2823983 |
Process for the production of metallic silicon
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