Method for the production of tetraalkyl silicates

Organic compounds -- part of the class 532-570 series – Organic compounds – Silicon containing

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C07F 704, C07F 718

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active

042886040

ABSTRACT:
Tetraalkyl silicates are produced by the reaction of silicon metal with an alkanol in the presence of an alkali metal salt of an alkoxyalkoxy alcohol or a polyalkylene glycol in either an alkoxyalkoxy alcohol or a polyalkylene glycol or mixtures thereof and recovery of the product. Tetramethyl silicate and tetraethyl silicate are the preferred products. The preferred alkoxyalkoxy alcohol is 2-(2-butoxyethoxy)ethanol. The preferred glycol is diethylene glycol. An indifferent solvent and/or a hydroxide-scavenger may be employed in the reaction mixture.

REFERENCES:
patent: 3627807 (1971-12-01), Bleh et al.
patent: 3803197 (1974-04-01), Anderson et al.
patent: 4113761 (1978-12-01), Kreuzburg et al.
patent: 4197252 (1980-04-01), Joch et al.
patent: 4211717 (1980-07-01), Emblem et al.

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