Removal of anionic surfactants from water

Details Removal of anionic surfactants from water Removal of anionic surfactants from water

1979-04-05

1980-11-25

Hart, Charles N.

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

210683, 210639, 210749, C02F 126

Patent

active

042357128

ABSTRACT:
A method of removing specific water-soluble anionic surfactants from water is disclosed. Briefly, the method comprises forming an emulsion by adding a nonionic surfactant and a hydrocarbon to the water and anionic surfactant. The emulsion is broken, with the anionic and nonionic surfactant being present in the hydrocarbon layer.

REFERENCES:
patent: 3215621 (1965-11-01), White et al.
patent: 3247103 (1966-04-01), Shang
patent: 3247104 (1966-04-01), Sako et al.
patent: 3485752 (1969-12-01), Eck et al.
patent: 3779907 (1973-12-01), Li et al.
patent: 3994943 (1976-11-01), Gibble et al.
patent: 4092242 (1978-05-01), Deane

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