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Machine translation
1. (WO1981001842) PRODUCING ANTHRACENE FROM CREOSOTE
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1981/001842    International Application No.:    PCT/US1980/001627
Publication Date: 09.07.1981 International Filing Date: 05.12.1980
IPC:
C07C 7/00 (2006.01), C07C 7/14 (2006.01), C10C 1/18 (2006.01)
Applicants:
Inventors:
Priority Data:
105054 19.12.1979 US
Title (EN) PRODUCING ANTHRACENE FROM CREOSOTE
(FR) PRODUCTION D'ANTHRACENE A PARTIR DE CREOSOTE
Abstract: front page image
(EN)Anthracene is precipitated in improved purity and yield by cooling a creosote coal tar distillation fraction. A ketone such as acetone is added to the fraction before the anthracene precipitates. The ketone retains phenanthrene and/or carbazole in the liquid phase as the anthracene precipitates. If the ketone is then removed, the phenanthrene and/or carbazole precipitates and can also be purified.
(FR)L'anthracene est precipite avec une plus grande purete et un meilleur rendement en refroidissant une fraction de distillation de creosote de houille. Une cetone telle que l'acetone est ajoutee a la fraction avant que l'anthracene ne precipite. La cetone retient du phenanthrene et/ou du carbazole dans la phase liquide pendant que l'anthracene precipite. Si la cetone est alors extraite, le phenanthrene et/ou carbozole precipite et peut aussi etre purifie.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)