METHOD FOR PRODUCTION OF POLYMETHYL SILOXANE LIQUIDS Russian patent published in 1998 - IPC

Abstract RU 2107075 C1

FIELD: production of polymethyl siloxane liquids which are used as heat carrier, working liquids for hydrosystem and as antifrothing agents for petroleum oil. SUBSTANCE: polymethyl siloxane liquids are prepared by hydrolysis of mixture which comprises dimethyldichlorosilane and trimethylchlorosilane. The process is followed by neutralization of product of hydrolysis by 4-30 % suspension of chalk in polymethyl siloxane liquid, mass ratio of product of hydrolysis and chalk being 1:0.0015-0.002, respectively. Product is then separated, affected by catalytic rearrangement and then distilled into fractions. EFFECT: improved efficiency of the method. 1 tbl

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RU 2 107 075 C1

Authors

Klokov B.A.

Tivanov V.D.

Klokova S.Ja.

Novikov V.I.

Anokhin N.F.

Dates

1998-03-20—Published

1996-03-28—Filed