Foam control process for highly acidic aqueous systems

Details Foam control process for highly acidic aqueous systems Foam control process for highly acidic aqueous systems

1986-12-11

1988-08-09

Terapane, John F.

Compositions

Preservative agents

Anti-corrosion

252358, B01D 1904

Patent

active

047626402

ABSTRACT:
A process for controlling foaming in highly acidic aqueous system using a silicone foam control agent is disclosed. The foam control agent consists essentially of (A) a dimethylpolysiloxane gum having a viscosity greater than about 150,000 Poise at 25.degree. C., (B) a non-ionic surfactant, (C) a siloxane copolymer dispersing agent and, optionally, (D) water.

REFERENCES:
patent: 3784479 (1974-01-01), Keil
patent: 3912652 (1975-10-01), Colguhoun
patent: 3984347 (1976-10-01), Keil
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patent: 4107068 (1978-08-01), Rosen
patent: 4395352 (1983-07-01), Kulkarni
patent: 4460493 (1984-07-01), Lomas
"Antifrothing Agents for Aqueous Media with Surfactants", by N. F. Orlov & N. V. Vvedensky, Dec. 14-16, 1966, pp. 234-237, Chemistry and Practical Application of Organosilicon Compounds Conference Proceedings.

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