Catalytic process for the production of urea and ammonium cyanat

Details Catalytic process for the production of urea and ammonium cyanat Catalytic process for the production of urea and ammonium cyanat

1981-10-30

1985-09-17

Doll, John

Chemistry of inorganic compounds

Nitrogen or compound thereof

Carbon containing

564 63, C01C 300, C01C 314

Patent

active

045420068

ABSTRACT:
A catalytic process has been found to produce urea or its equivalent, NH.sub.4 NCO, under relatively mild pressure and temperature conditions. This process entails flowing a gas mixture containing NO.sub.x, CO, and a source of hydrogen such as H.sub.2 or H.sub.2 C over a hydrogenation catalyst such as platinum. Yields of urea above 90 percent based on NO.sub.x conversion are obtainable.

REFERENCES:
patent: 1083703 (1914-01-01), Rothe
patent: 1487647 (1924-03-01), Fauser
patent: 3425803 (1969-02-01), Romeo
Mellor, Treatise on Inorganic and Theoretical Chemistry, vol. VIII (1928), p. 161.

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