Organic compounds -- part of the class 532-570 series – Organic compounds – Four or more ring nitrogens in the bicyclo ring system
Patent
1982-11-12
1984-10-02
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
044749570
ABSTRACT:
There is disclosed a process for producing cyanuric acid from urea using an external heating type reaction vessel furnished with agitator provided with plural urea supply ports in the direction of conveyance of the contents at such an interval as to make the residence time of the contents about 2 to 20 minutes, heating the urea in the presence of crude cyanuric acid to a temperature of 230.degree.-320.degree. C. to subject it to heat decomposition, and recycling a part of the formed crude cyanuric acid to the reactor. According to this process, the urea corresponding to the amount not exceeding 1/3 in ratio by weight to the crude cyanuric acid to be used in circulation is fed respectively into the reaction vessel through each urea supply port, and, while preventing progress of adhesion of contents to the inner wall of the reaction vessel as well as the agitator and formation of blocks, the combined amount of the urea to be fed into the reaction vessel from each urea supply port is made to exceed substantially 1/3 in ratio by weight to the crude cyanuric acid to be used in circulation.
REFERENCES:
patent: 2943088 (1980-06-01), Westfall
patent: 3953443 (1976-04-01), Ohata et al.
Maeda Shuzo
Nakagi Junji
Sato Soichi
Ford John M.
Shikoku Chemicals Corporation
LandOfFree
Process for producing cyanuric acid from urea 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 producing cyanuric acid from urea, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for producing cyanuric acid from urea will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-527414