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Title:
PRODUCTION OF FINE PARTICULATE ANTHRAQUINONE AND METHOD FOR FEEDING
Document Type and Number:
Japanese Patent JPH0859540
Kind Code:
A
Abstract:

PURPOSE: To obtain a fine particulate anthraquinone having ≤2.5μm particle diameter suitable for a suppressant for production of sulides in an aqueous system containing sulfate reducing bacteria present therein from an aqueous solution of a water-soluble salt of 1,4-dihydro-9,10-dihydroanthracene which is a precursor for producing the anthraquinone without using a special pulverizing step for the anthraquinone.

CONSTITUTION: This method for producing a fine particulate anthraquinone comprises oxidizing an aqueous solution of a water-soluble salt of 1,4- dihydro-9,10-dihydroanthracene at a concentration so as to provide a slurry of ≤5wt.% anthraquinone with a gas containing oxygen. Furthermore, this method for feeding the fine particulate anthraquinone comprises directly feeding the resultant slurry of the fine particulate anthraquinone into an aqueous system containing sulfate reducing bacteria present therein.


Inventors:
Matsuzaki, Katsumi
Hondo, Hatsuo
Application Number:
JP1994000202639
Publication Date:
March 05, 1996
Filing Date:
August 29, 1994
Export Citation:
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Assignee:
KAWASAKI KASEI CHEM LTD
International Classes:
C07C46/08; A01N35/06; C07C50/18; (IPC1-7): C07C50/18; A01N35/06; C07C46/08