Polyoxyalkylene-polysiloxane block copolymers as demulsifiers fo

Details Polyoxyalkylene-polysiloxane block copolymers as demulsifiers fo Polyoxyalkylene-polysiloxane block copolymers as demulsifiers fo

1988-11-16

1991-04-02

Lovering, Richard D.

Compositions

Preservative agents

Anti-corrosion

252358, 208188, 210708, B01D 1705

Patent

active

050045598

ABSTRACT:
To demulsify water-containing crude oil, selected polyoxyalkylene-polysiloxane block copolymers are described.
The demulsifiers are used in amounts of less than 200 ppm based on the crude oil.

REFERENCES:
patent: 4183820 (1980-01-01), Theile et al.
patent: 4514319 (1985-04-01), Kulkarni et al.
patent: 4596653 (1986-06-01), Graham et al.
patent: 4711714 (1987-12-01), Callaghan et al.
patent: 4854938 (1989-08-01), Easton et al.

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