C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
260/618, 252/82,
C07C 45/39 (2006.01) C07C 37/06 (2006.01) C07C 37/07 (2006.01) C07C 45/00 (2006.01) C07C 45/68 (2006.01)
Patent
CA 1160204
ABSTRACT OF THE DISCLOSURE The present invention provides a catalyst for dehy- drogenation of oxygen-containing derivatives of the cyclo- hexane series of the general formula: Image wherein R1 is hydrogen or a C1-C4 alkyl; R2 and R3 are radicals which may be the same or different, and are selected from -H, -OH, and =0, provided that R2 and R3 are not both hydrogen and R1, R2 and R3 are attached to different carbon atoms of the ring to form corresponding cyclic ketones and/ or phenols, the catalyst containing the following components, per cent by weight: Nickel 15 to 55; promoter which is germanium and/or lead 0.2 to 8.0 and inert carrier 84.8 to 37.0 the atomic ratio or nickel to the promotor being in the range of from 15:1 to 410:1 respectively the inert carrier being selected from the group consisting of silica, kieselguhr, silicon carbide and magnesia. The catalyst can additionally contain a salt of an alkali metal and a mineral acid in an amount of from 0.01 to 1.0% by weight. The present invention also provides a process for dehydrogenating oxygen-containing derivatives of the cyclohexane series into corresponding cyclic ketones and/or phenols effected in the presence of said catalyst and an inert diluent at 160- 340°C under atmospheric pressure and with feed rates of said deriva- tives of the cyclohexane series and inert diluent of 0.5 to 5.0 kg/1.h and 1 to 53 m3/1.h, respectively. The catalyst has high productivity (up to 3.8 kg/1.hr) selectivity (up to 99%) and stability (operates with unchanged character- istics of productivity and selectivity for 400 hours and lon- ger). The process is simple and performed using standard equipment this is economically efficient.
368475
Belov Petr S.
Dyakonov Alexandr J.
Nizova Svetlana A.
Rozovsky Alexandr Y.
Stytsenko Valentin D.
Institut Neftekhimicheskogo Sinteza Imeni A.v. Topcheiva Akademi
Marks & Clerk
Moskovsky Institut Neftekhimicheskoi I. Gazovoi Promyshlennosti
LandOfFree
Catalyst and process for dehydrogenation of oxygen-... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Catalyst and process for dehydrogenation of oxygen-..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Catalyst and process for dehydrogenation of oxygen-... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-236571