Process for preparing guanidine

Details Process for preparing guanidine Process for preparing guanidine

1978-03-21

1979-06-05

Schwartz, Gerald A.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C12900

Patent

active

041573480

ABSTRACT:
A process is described for preparing guanidine by separating guanidine from a process stream obtained in a urea synthesis process, wherein ammonia and carbon dioxide are reacted at a high temperature and a high pressure. The process stream includes a urea synthesis effluent from a urea synthesis zone, a solution obtained by separating unreacted materials from the effluent, a concentrate of the solution or a mother liquor derived from a urea crystallization zone.

REFERENCES:
patent: 3952057 (1976-04-01), Schmidt et al.

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