Method of removing lignin from tall oil

Chemistry: natural resins or derivatives; peptides or proteins; – Natural resins or derivatives – Recovery of tall oil or derivatives from papermaking waste,...

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159 401, 159 163, 162 14, 162 16, 203 95, 208 43, C09F 102, B01D 314

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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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