Nitric acid oxidized lignosulfonates

Details Nitric acid oxidized lignosulfonates Nitric acid oxidized lignosulfonates

1994-03-02

1995-08-29

Michl, Paul R.

Chemistry: natural resins or derivatives; peptides or proteins;

Lignins or derivatives

530501, 530502, 530505, 530506, 530507, 530421, C07G 100

Patent

active

054461332

ABSTRACT:
A process for producing an oxidized lignosulfonate composition comprising admixing a lignosulfonate and nitric acid such that the amount of acid comprises from about 35% to about 100% by weight of dry solids of the lignosulfonate, and reacting said mixture for a time sufficient to form the oxidized lignosulfonate composition.

REFERENCES:
patent: 3070591 (1962-12-01), Hoyt
patent: 4447339 (1984-05-01), Detroit
patent: 4488907 (1984-12-01), Sarkkinen
A bulletin published by Daishowa Chemicals, Inc., "The Lignin Story".

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