Method for the continuous preparation of alkoxysilanes

Details Method for the continuous preparation of alkoxysilanes Method for the continuous preparation of alkoxysilanes

1983-10-03

1985-03-19

Shaver, Paul F.

Organic compounds -- part of the class 532-570 series

Organic compounds

Silicon containing

C07F 708, C07F 718

Patent

active

045060878

ABSTRACT:
A method for the continuous preparation of an alkoxysilane with hydrogen chloride contents of less than 20 ppm. In the method, the esterification is performed continuously in a reactor, and the raw esterification product is delivered to the top of a column. In this column, the reactant alcohol is vaporized and condensed at the top. The raw product drips from the top of the column to the bottom where it is collected as pure product. The method is suitable for the preparation of both tetraalkoxysilanes and of substituted alkoxysilanes. Partially condensed alkoxysilanes having a defined silicon dioxide content can also be made by this method.

REFERENCES:
patent: 2484394 (1949-10-01), Van Zwet
patent: 2553845 (1951-05-01), Clark
patent: 3792071 (1974-02-01), Nitzsche et al.
patent: 3801618 (1974-04-01), Walker
patent: 3985781 (1976-10-01), Kotzsch et al.
patent: 4039567 (1977-08-01), Kotzsch et al.
patent: 4228092 (1980-10-01), Kotzsch et al.

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