Process and use of amino-functional resins for dismutating halosilanes and for removing extraneous metals

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United States of America Patent

PATENT NO 9908781
SERIAL NO

13383681

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Abstract

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The invention relates to a process for dismutating at least one halosilane and reducing the content of extraneous metal and/or a compound containing extraneous metal in the at least one halosilane and in the at least one silane obtained, by contacting at least one halosilane of the general formula I, HnSiClm (I), where n and m are integers and n=1, 2 or 3 and m=1, 2 or 3 and n+m=4, with a particulate, organic, amino-functional resin to obtain at least one silane of the general formula II, HaSiClb (II), where a and b are integers and a=0, 2, 3 or 4 and b=0, 1, 2 or 4 where a+b=4, in one step, in which the content of extraneous metal and/or compounds containing extraneous metal has been reduced compared to the halosilane of the formula I. The invention further provides for the use of this resin for dismutating halosilanes and as an absorbent of extraneous metals or compounds containing extraneous metal in a process for preparing monosilane.

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Patent Owner(s)

Patent OwnerAddress
EVONIK DEGUSSA GMBHRELLINGHAUSER STRASSE 1-11 ESSEN 45128

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Monkiewicz, Jaroslaw Rheinfelden, DE 87 1809
Mueh, Ekkehard Rheinfelden, DE 30 268
Rauleder, Hartwig Rheinfelden, DE 105 730
Schork, Reinhold Rheinfelden, DE 20 155

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