Method of isolating granular anthraquinone from anthraquinone pr

Details Method of isolating granular anthraquinone from anthraquinone pr Method of isolating granular anthraquinone from anthraquinone pr

1975-01-13

1976-10-26

Demers, Arthur P.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260385, 260706, C07C 4968

Patent

active

039883540

ABSTRACT:
A method of isolating granular anthraquinone from anthraquinone production process gases which consists of passing said gasses through a fluidized bed of anthraquinone granules at a temperature of 110.degree. to 160.degree. C.
While the gas is being passed through the fluidized bed, the anthraquinone vapors are condensed on the granules which are destroyed as fast as the layer of the condensed anthraquinone is grown thereon with the formation of new granules, and whereon anthraquinone condensation occurs as well. Part of the granules of the anthraquinone are isolated from the fluidized bed as the finished product.

REFERENCES:
patent: 2607440 (1952-08-01), Lewis
patent: 3113140 (1963-12-01), Matz et al.
Nazarov et al. Chem. Abstracts 76 (1972) No. 129746.

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