Recovery and reuse of amphoteric surfactants from aqueous soluti

Details Recovery and reuse of amphoteric surfactants from aqueous soluti Recovery and reuse of amphoteric surfactants from aqueous soluti

1997-03-10

1999-07-06

Geist, Gary

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

564296, 210651, C07C21306

Patent

active

059199806

ABSTRACT:
Improved surfactant recovery for recycle and reuse upon ultrafiltration of a surfactant-containing aqueous solution can be obtained using a betaine or amide oxide amphoteric surfactant in the aqueous cleaner/contaminant solution. The surfactant passes through the ultrafiltration membrane with the water in the permeate in very high amounts while the contaminants and other undesirable components are held back in the retentate.

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