Purification of 1-nitroanthraquinone

Details Purification of 1-nitroanthraquinone Purification of 1-nitroanthraquinone

1973-01-29

1977-03-15

Myers, Jane S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C09d 100

Patent

active

040124266

ABSTRACT:
This invention provides a purification process for crude 1-nitroanthraquinone which comprises treating the crude 1-nitroanthraquinone with a base or a basic hydrolyzable salt, in the presence of a solvent and at an elevated temperature, and isolating the purified 1-nitroanthraquinone. The process particularly removes substantial proportions of dinitroanthraquinones and oxidation products.

REFERENCES:
patent: 2302729 (1942-11-01), Whelen
patent: 3766222 (1973-10-01), Hartwig et al.

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