Fixation of nitrogen using silicon oxide catalysts

Details Fixation of nitrogen using silicon oxide catalysts Fixation of nitrogen using silicon oxide catalysts

1981-01-21

1981-12-29

Thomas, Earl C.

Chemistry of inorganic compounds

Nitrogen or compound thereof

Oxygen containing

423400, 423402, 423404, C01B 2148, C01F 1138

Patent

active

043082467

ABSTRACT:
A process for the fixation of nitrogen comprising, combining a gaseous nitrogen and oxygen at a total pressure of above 100 atmospheres with a solid oxide which can produce a nitrate, in the presence of an oxide of silicon catalyst for the acceleration of a reaction between nitrogen and oxygen to produce nitrogen oxides, initially heating the combination to a temperature of between 600.degree. C. to 800.degree. C. and below the dissociation pressure of the nitrate to start an exothermic reaction for producing nitrogen oxides from the nitrogen and oxygen and for producing nitrate from the solid oxide and to establish an equilibrium between the nitrogen, oxygen, nitrogen oxides, solid oxide and nitrate. The reacting combination in equilibrium is then cooled and either the nitrate or the nitrogen oxides are removed from the reaction as products.

REFERENCES:
patent: 1348227 (1920-08-01), La Cour
patent: 1945415 (1934-04-01), Kipper
patent: 4271137 (1981-06-01), Harteck

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