Process for trimerizing isocyanic acid to make cyanuric acid

Details Process for trimerizing isocyanic acid to make cyanuric acid Process for trimerizing isocyanic acid to make cyanuric acid

1981-05-21

1982-11-16

Ford, John M.

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

Organic compounds

Four or more ring nitrogens in the bicyclo ring system

C07D25132

Patent

active

043595758

ABSTRACT:
Isocyanic acid is trimerized to cyanuric acid by contacting the isocyanic acid with liquid organic solvent, preferably polar solvent having high dielectric constant. The product is recovered as precipitate of good purity. Conversion and yield are high.

REFERENCES:
patent: 2822363 (1958-02-01), Christmann et al.
patent: 2872447 (1959-02-01), Oehlschlaeger
patent: 3065233 (1962-11-01), Hopkins et al.
patent: 3297697 (1967-01-01), Reynolds et al.
Redemann et al., Ind. & Chem. Eng., vol. 50, pp. 633-636 (1958).
Allied Chemical Product Bulletin, Apr. 9, 1959, "Cyanuric Acid" p. 2.

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