Styrene caustic wash extraction aid

Details Styrene caustic wash extraction aid Styrene caustic wash extraction aid

1998-12-14

2000-08-08

Griffin, Walter D.

Chemistry of hydrocarbon compounds

Purification, separation, or recovery

By plural serial diverse separations

585806, 585837, 585860, 585861, 585863, C07C 700, C07C 710

Patent

active

061004391

ABSTRACT:
Methods and compositions for improving the extraction of phenols from crude styrene using an aqueous caustic solution are disclosed. It has been discovered that aromatic or alkylammonium tailed multi-polyether headed surfactants and/or quaternary polyamines will improve this extraction, particularly in propylene oxide styrene monomer systems.

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patent: 5476988 (1995-12-01), Hart et al.
patent: 5481059 (1996-01-01), Brock et al.
patent: 5675055 (1997-10-01), Evans et al.

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