Process for reducing the content of boron compounds in halosilane-containing compositions
AssigneeWacker Chemie AG
InventorKarl-Heinz RIMBOECK
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Abstract
The content of boron compounds in a composition containing at least one halosilane is reduced by bringing the composition into contact with at least one phenylsilane and removing the at least one halosilane. The invention further relates to the use of phenylsilanes for removing boron compounds from halosilane-containing compositions.
Claims24
-16. (canceled)
A method for reducing the content of boron compounds in a composition containing at least one halosilane, comprising the steps of
- a) bringing the composition into contact with at least one phenylsilane,
- b) removing the at least one halosilane by means of a thermal separation method,
- wherein the phenylsilane is selected from the group consisting of the phenylsilanes of formulae A, B, C, and D, and mixtures thereof
- wherein R1, R2, R3 each individually, are H, alkyl, F, Cl, Br, I, R5, or OR5, where R5 each individually is alkyl, aryl, or polyether, and
- R4 each individually is H, alkyl, aryl, F, Cl, Br, or I.
A process for removing boron compounds from compositions containing at least one halosilane comprising employing at least one phenylsilanes of formulae A, B, C or D
Dependencies are inferred from the claim text.