Method for purifying alkoxysilane

Details Method for purifying alkoxysilane Method for purifying alkoxysilane

1986-10-27

1987-09-29

Shaver, Paul F.

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

Organic compounds

Silicon containing

556415, 556416, 556417, 556446, 556482, 556483, 556485, 556488, 556489, C07F 708, C07F 718

Patent

active

046970274

ABSTRACT:
A method for purifying alkoxysilane with the general formula, R.sub.m Si(OR.sup.1).sub.4-m. The method significantly lowers the level of non-hydrolyzable chlorine-based impurities, as well as the level of hydrolyzable chlorine-based impurities. The method comprises: (i) heating the alkoxysilane in the presence of a treating agent selected from a group which consists of acid clays and metal halides; (ii) contacting the alkoxysilane with a neutralization agent; and (iii) separating the alkoxysilane from the unused neutralization agent and by-products of neutralization.

REFERENCES:
patent: 4127598 (1978-11-01), Micentee
patent: 4156689 (1979-05-01), Ashby et al.
Chung and Hayes, J. of Organometallic Chemistry, 265 (1984), pp. 135-139.

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