Chemistry: natural resins or derivatives; peptides or proteins; – Natural resins or derivatives – Recovery of tall oil or derivatives from papermaking waste,...
Patent
1988-01-20
1989-11-07
Manoharan, Virginia
Chemistry: natural resins or derivatives; peptides or proteins;
Natural resins or derivatives
Recovery of tall oil or derivatives from papermaking waste,...
159 401, 159 163, 162 14, 162 16, 203 95, 208 43, C09F 102, B01D 314
Patent
active
048793698
ABSTRACT:
Lignin is removed from a crude tall oil in the production of tall oil fractions suitable for use as chemical ingredients and additives in other products by sparging the crude tall oil at a temperature of between about 350.degree. F. to 400.degree. F. with a carrier gas to depolymerize and remove from the tall oil lower molecular weight lignin materials.
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Manoharan Virginia
McDaniel Terry B.
Schmalz Richard L.
Westvaco Corporation
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