Purification of quinones

Details Purification of quinones Purification of quinones

1991-08-16

1993-01-19

Cintins, Marianne

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

Organic compounds

Cyclohexadiene having atoms double bonded directly at the 1-...

552308, 552309, C07C 5004

Patent

active

051808420

ABSTRACT:
Disclosed is a process for removing chlorine-containing impurities from quinone compounds such as p-bezonquinone. The process involves extracting a quinone compound containing 1000 ppm or more chlorine with heptane, cyclohexane or a mixture thereof and separating the quinone compound from the extraction mixture. The process provides a means for obtaining quinone compounds containing 50 ppm or less chlorine.

REFERENCES:
patent: 3678080 (1972-07-01), Crivello

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