Recovery and reuse of sugar-derived nonionic surfactants from aq

Details Recovery and reuse of sugar-derived nonionic surfactants from aq Recovery and reuse of sugar-derived nonionic surfactants from aq

1998-10-30

1999-12-21

Fortuna, Ana

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

210653, 210654, 134 10, B01D 6100

Patent

active

060044667

ABSTRACT:
Contaminated aqueous systems can be cleaned using an ultra-filtration process that allows for the recovery of high yields of the surfactant employed therein for recycle and reuse. The system employs a specific class of sugar-derived nonionic surfactants which remain polar and solvated at the higher operating temperatures of the system. Specifically, these are sugar-derived nonionic surfactants more definitively known as the alkyl polyglycosides and the alkyl glucomides. The surfactant/contaminant-containing aqueous system is ultra-filtered resulting in the surfactant passing through with the permeate at extremely high yields for recovery and reuse.

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