公开(公告)号：US3927108A

公开(公告)日：1975-12-16

申请号：US41763573

申请日：1973-11-20

Applicant: STAMICARBON

Inventor： VAN DE MOESDIJK CORNELIS G M ,  THOMAS ANDREAS M J

IPC: C07C27/00 ,  C07B61/00 ,  C07C27/04 ,  C07C29/132 ,  C07C35/02 ,  C07C45/00 ,  C07C45/53 ,  C07C49/203 ,  C07C67/00 ,  C07C29/00

CPC classification number: C07C45/53

Abstract: A process for the preparation of cycloalkanones and/or cycloalkanols by catalytic hydrogenation of cycloalkyl hydroperoxides is disclosed. In the invented process use is made of a finely divided catalyst that is suspended in the reaction mixture and contains one or more noble metals from Group VIII of the Periodic System of Elements, preferably rhodium, platinum and/or palladium. With the invented process a high reaction rate can be achieved already at a low reaction temperaturue and a low hydrogen pressure, while the desired products are obtained in a high yield. Very little catalyst is needed for achieving a given rate of reaction. The invention permits advantageous application of catalysts with very high noble-metal concentrations. Favourable alcohol/ketone ratios can be achieved. The invention also offers solutions for specific problems which may occur in performing the invented process. Advantageous incorporation of the invented process into an overall process for the preparation of cycloalkanols and/or cycloalkanones from a cycloalkane via a cycloalkyl hydroperoxide is disclosed.

Abstract translation: 公开了通过环烷基氢过氧化物的催化氢化制备环烷酮和/或环烷醇的方法。 在本发明的方法中，使用悬浮在反应混合物中并含有元素周期表第Ⅷ族中优选铑，铂和/或钯的一种或多种贵金属的细分催化剂。