Chemistry: natural resins or derivatives; peptides or proteins; – Lignins or derivatives – Carboxylic acid anhydride – or a compound having halogen...
Patent
1986-12-29
1988-04-19
Nielsen, Earl
Chemistry: natural resins or derivatives; peptides or proteins;
Lignins or derivatives
Carboxylic acid anhydride, or a compound having halogen...
530500, 166275, C08H 502
Patent
active
047390417
ABSTRACT:
The invention is a method of producing surfactants from lignin which comprises subjecting lignin to two reactions, alkylation with an alkyl chain having about 3 to about 24 carbon atoms at phenolic sites, and oxidation sufficient to break the lignin into smaller polymeric and monomeric units. The invention also includes using these lignin surfactants in surfactant floods for enhanced oil recovery.
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DaGue Michael G.
Morrow Lawrence R.
Whittington Lawrence E.
Delhommer Harold J.
Nielsen Earl
Park Jack H.
Priem Kenneth R.
Texaco Inc.
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