Method of preparing melamine from cyanamide and/or dicyandiamide

Details Method of preparing melamine from cyanamide and/or dicyandiamide Method of preparing melamine from cyanamide and/or dicyandiamide

1976-08-17

1978-01-17

Ford, John M.

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

Organic compounds

Four or more ring nitrogens in the bicyclo ring system

C07D25158

Patent

active

040693830

ABSTRACT:
Melamine is prepared from cyanamide and/or dicyandiamide by contacting the cyanamide and/or dicyandiamide at approximately atmospheric pressure in an organic solvent at 100.degree. to 250.degree. C with at least one solvent selected from the group having the formulas ##STR1## wherein R.sub.1 and R.sub.2 are alkyl which may be joined together to form an alkylene ring,
In the simultaneous presence of alkali hydroxide or alkaline earth hydroxide.

REFERENCES:
patent: 3257169 (1966-06-01), Sprague

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