초록 ▼

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

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.

대표청구항 ▼

[ What we claim is:] [1.] A process for the recovery of surfactants from an aqueous surfactant/contaminant-containing solution wherein said solution is ultrafiltered in order to recover said surfactant from the permeate for recycle and re-use, said process comprising the use of a sugar-derived nonio

[ What we claim is:] [1.] A process for the recovery of surfactants from an aqueous surfactant/contaminant-containing solution wherein said solution is ultrafiltered in order to recover said surfactant from the permeate for recycle and re-use, said process comprising the use of a sugar-derived nonionic surfactant that remains polar and solvated at the operating temperature of the ultrafiltration system.