Process for preparing hydridocarbonyltris(triphenylphosphine)rhodium(I)

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United States of America Patent

PATENT NO 9834572
SERIAL NO

15324017

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Abstract

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The present invention relates to a process for preparing hydridocarbonyltris(triphenylphosphine)rhodium(I), RhH(CO)(PPh3)3, also referred to hereinafter as “Rh-hydrido.” An alcoholic suspension of triphenylphosphine is stirred with an Rh(III) chloride precursor at elevated temperature. The Rh(III) chloride precursor used may be rhodium(III) chloride hydrate RhCl3*xH2O or rhodium(III) chloride solution H3[RhCl6]*(H2O)n. After cooling, alcoholic alkali metal hydroxide solution is added, and the mixture is stirred for a few hours. Finally, sparging is effected with CO gas and the Rh-hydrido formed is removed. Rh-hydrido can be prepared by this process on the industrial scale with high yields and at very good quality.

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Patent Owner(s)

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UMICORE AG & CO KGWOLFGANG GERMANY HANAU HESSIAN

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Doppiu, Angelino Seligenstadt, DE 48 47
Karch, Ralf Kleinostheim, DE 60 181
Rivas-Nass, Andreas Bensheim, DE 35 101
Woerner, Eileen Nidderau, DE 41 46

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