Production of oxidized humic acids by an oxygen-alkali process

Details Production of oxidized humic acids by an oxygen-alkali process Production of oxidized humic acids by an oxygen-alkali process

1996-01-26

1997-11-18

Killos, Paul J.

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

Organic compounds

Carboxylic acids and salts thereof

C07C 6501

Patent

active

056889992

ABSTRACT:
A method is disclosed for the production of oxidized humic acids. The process of the invention comprises reacting humic acid bearing ores with oxygen under alkaline conditions at a temperature between 100.degree. C. and 200.degree. C. for at least 1/2 hour, but usually for 1-2 hours, to produce oxidized humic acids which are soluble at pH as low as 2.9 and which are formed in yields of at least 70%. The oxidized humic acids produced according to the process of the invention are also superior viscosity reducers.

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