Hydroperoxide decomposition process

C - Chemistry – Metallurgy – 07 – C

Patent

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Details

C07C 33/20 (2006.01) B01J 21/06 (2006.01) B01J 23/20 (2006.01) C07C 29/00 (2006.01) C07C 29/132 (2006.01) C07C 31/12 (2006.01) C07C 35/08 (2006.01) C07C 45/53 (2006.01) C07C 49/403 (2006.01) B01J 21/08 (2006.01)

Patent

CA 2262069

An improved process for decomposing alkyl or aromatic hydroperoxides to form a decomposition reaction mixture containing the corresponding alcohol and ketone. The improvement relates to decomposing the hydroperoxide by contacting the hydroperoxide with a catalytic amount of a heterogeneous catalyst of Nb or Hf hydroxide or oxide. The improvement also relates to decomposing a secondary hydroperoxide by contacting the secondary hydroperoxide with a catalytic amount of a heterogeneous catalyst of Zr or Ti hydroxide or oxide. The catalysts may optionally be supported on SiO2, Al2O3, carbon or TiO2.

On décrit un procédé amélioré de décomposition d'hydroperoxydes aromatiques ou d'alkyle, afin de former un mélange de réaction de décomposition contenant l'alcool et la cétone correspondants. L'amélioration porte sur la décomposition de l'hydroperoxyde et consiste à mettre en contact cet hydroperoxyde avec une quantité catalytique d'un catalyseur hétérogène d'hydroxyde ou d'oxyde de Nb ou Hf. L'amélioration porte également sur la décomposition d'un hydroperoxyde secondaire et consiste à mettre en contact cet hydroperoxyde secondaire avec une quantité catalytique d'un catalyseur hétérogène d'hydroxyde ou d'oxyde de Zr ou Ti. Ces catalyseurs peuvent, éventuellement, être sur support de SiO¿2?, Al¿2?O¿3?, carbone ou TiO¿2?.

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