A catalytic method for the preparation of lignin phenol...

Details A catalytic method for the preparation of lignin phenol... A catalytic method for the preparation of lignin phenol...

C - Chemistry, Metallurgy

07

G

C07G 1/00 (2006.01) C08L 97/00 (2006.01) C11D 1/30 (2006.01) C11D 1/80 (2006.01) E21B 43/00 (2006.01) E21B 43/16 (2006.01) E21B 43/22 (2006.01)

Patent

CA 2272592

A method of making surfactants from lignin is disclosed by reducing lignin in the presence of a metal oxide or iron based catalyst in an organic hydrogen donor solvent to produce lignin phenol and subjecting the lignin phenol to one or a combination of several reactions such as alkoxylation, alkylation, sulfonation, sulfation, alkoxysulfation, and sulfomethylation. The lignin surfactants so produced can be employed in a surfactant system to recover oil from underground formations.

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