Manufacture of anthraquinones

Details Manufacture of anthraquinones Manufacture of anthraquinones

1976-06-07

1977-08-30

Shaver, Paul F.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C09B 100

Patent

active

040454568

ABSTRACT:
Anthraquinones are manufactured by cyclizing o-benzoylbenzoic acids in the presence of oxygen-containing compounds of aluminum and silicon at elevated temperatures. The products are starting materials for the manufacture of dyes.

REFERENCES:
patent: 2401225 (1946-05-01), Caesar et al.
patent: 2871244 (1959-01-01), Kamlet
patent: 2967187 (1961-01-01), Serres et al.
patent: 3032560 (1962-05-01), Dawsey
patent: 3173759 (1965-03-01), Williams
patent: 3173913 (1965-03-01), Van der Stelt

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