Process for preparing cyanamide

Details Process for preparing cyanamide Process for preparing cyanamide

1985-03-06

1986-11-25

Warren, Charles F.

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

564106, 544201, 544202, 502 78, C07C12508, C07D25160, C07D25158, B01J 2918

Patent

active

046250611

ABSTRACT:
An improved process for the preparation of cyanamide or a cyanamide-containing gas mixture by passing urea and/or urea decomposition products over a catalyst at a temperature in the range of between about 200.degree. C. and 600.degree. C. A porous catalyst is utilized which has an intracrystalline pore diameter of at most 8 A, whereby a high conversion to cyanamide is obtained and the formation of melamine by-products is substantially reduced.

REFERENCES:
patent: 2721786 (1955-10-01), Boatright et al.
patent: 2760961 (1956-08-01), Mackay
patent: 2783131 (1957-02-01), Mackay
patent: 3093644 (1963-06-01), Steggerda
patent: 3414571 (1968-12-01), Haines et al.

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