Process for the mononitration of anthraquinone

Details Process for the mononitration of anthraquinone Process for the mononitration of anthraquinone

1978-10-18

1980-05-20

Douglas, Winston A.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C 4968

Patent

active

042038855

ABSTRACT:
A process has been developed for the mononitration of anthraquinone to 1-nitroanthraquinone with nitric acid/sulphuric acid mixtures wherein anthraquinone is nitrated in a nitric acid/sulphuric acid mixture, in which the weight ratio of nitric acid to sulphuric acid is about 1:1 to about 2:1, in which the weight ratio of sulphuric acid to anthraquinone is about 0.5:1 to about 1:1 and in which the weight ratio of sulphuric acid to water is about 2.5:1 to about 5.5:1, the weight ratios relating to the sum of the materials employed, at temperatures in the range from about 45.degree. to 70.degree. C. until the anthraquinone content is less than 3% by weight, relative to the sum of the anthraquinone compounds.

REFERENCES:
patent: 4012426 (1977-03-01), Toth
Okada, Tsugio et al., "1-Nitroanthraquinone" in Chemical Abstract No. 178651q, vol. 83, 1975, p. 536.
Stoeckelmann, Guenter et al., "1-Nitroanthraquinone by Continuous Nitration of Anthraquinone" in Chemical Abstract No. 115,367y, 7/1973, 94144(e), vol. 85, 1976.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-449507