Process for the purification of diaminomaleonitrile

Details Process for the purification of diaminomaleonitrile Process for the purification of diaminomaleonitrile

1975-08-19

1977-03-08

Brust, Joseph P.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C12000, C07C12145

Patent

active

040112543

ABSTRACT:
Diaminomaleonitrile which is produced by the tetramerization of hydrogen cyanide is purified by heating a crude diaminomaleonitrile in an inert liquid or in an inert atmosphere at a temperature of 90.degree. to 140.degree. C, preferably 100.degree. to 120.degree. C, and then extracting pure diaminomaleonitrile having a purity of about 99% from said heated crude diaminomaleonitrile with a solvent.

REFERENCES:
patent: 2818423 (1957-12-01), Carter
patent: 3564039 (1971-02-01), Webster
patent: 3629318 (1971-12-01), Webster
patent: 3701797 (1972-10-01), Okada et al.
patent: 3842115 (1974-10-01), Hamamoto et al.

Affiliated with

Also associated with

Rating

Process for the purification of diaminomaleonitrile does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the purification of diaminomaleonitrile, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the purification of diaminomaleonitrile will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1406025