Method of separating lignin and making epoxide-lignin

Details Method of separating lignin and making epoxide-lignin Method of separating lignin and making epoxide-lignin

1976-11-18

1978-09-05

Phillips, Delbert R.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07G 100

Patent

active

041119282

ABSTRACT:
A process for the extraction or separation of lignin from waste black cooking liquor resulting from the kraft and sulfite paper pulping process. After the lignin is separated, it is reacted with a chemical system to produce unsaturated end groups on the lignin molecule which are epoxidized to produce a lignin-epoxide resin.

REFERENCES:
patent: 3546200 (1970-12-01), Whalen et al.
patent: 3825526 (1974-07-01), Forss et al.

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