Surfactants from lignin

Details Surfactants from lignin Surfactants from lignin

B - Operations, Transporting

01

F

260/133, 31/19

B01F 17/00 (2006.01) C09K 8/584 (2006.01) E21B 43/22 (2006.01) C07G 1/00 (2006.01) C08H 6/00 (2010.01)

Patent

CA 1287348

SURFACTANTS FROM LIGNIN ABSTRACT OF THE DISCLOSURE A method of producing surfactants from lignin is disclosed by reducing lignin in the presence of a carbon monoxide or hydrogen reducing agent at high temperature and pressure to produce low molecular weight lignin phenols and subjecting the lignin phenols 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.

552819

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