Process for producing regenerated humic acids from coal

Details Process for producing regenerated humic acids from coal Process for producing regenerated humic acids from coal

C - Chemistry, Metallurgy

07

G

C07G 1/00 (2006.01) C08H 99/00 (2010.01) C08H 5/00 (2006.01)

Patent

CA 2078068

CASE 3441 "PROCESS FOR PRODUCING REGENERATED HUMIC ACIDS FROM COAL" Abstract Process for preparing regenerated humic acids from coal by means of the continuous oxidation on fluidized bed, characterized in that a coal of lignite, sub- bituminous or bituminous type is submitted to a preliminary oxidation under mild conditions in order to reduce the hydrogen content of said coal by an amount of 5 to 25% of hydrogen initially present in the starting coal, and that the resulting coal is subsequently submitted to an oxidation in order to produce the desired humic acids.

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