Process for the production of regenerated humic acids from coal

Details Process for the production of regenerated humic acids from coal Process for the production of regenerated humic acids from coal

1987-12-08

1988-11-29

Killos, Paul J.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acids and salts thereof

562475, 562478, C07C 5900

Patent

active

047883600

ABSTRACT:
A process is disclosed for the production of humic acids, which comprises an oxidation of coal in dry phase with oxygen or mixtures of oxygen and nitrogen in a fluidized-bed reactor, by using coal with a granulometry comprised within the range of from 100 .mu.m to 3 mm and operating at a temperature comprised within the range of from 150.degree. to 300.degree. C., under a partial pressure of oxygen comprised within the range of from 1.1 abs.atm. to 10 abs.atm., for a contact time comprised within the range of from 30 minutes to 600 minutes.

REFERENCES:
Vorontsin, V. A. et al, Khim Tuerd. Topl (5)145-147, 1971.
Tengler, S. et al, Chemik 26(2) 65-67, 1973.
Smutkina, Z. S., Khim Tuerd. Topl. (4)100-2 1977.
Elishevich, A., et al, Khim. Tuerd, Topl (Moscow) (1) 58-62 1984.

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