Catalytic system and a process for preparing alpha, omega-C.sub.

Details Catalytic system and a process for preparing alpha, omega-C.sub. Catalytic system and a process for preparing alpha, omega-C.sub.

1986-03-19

1987-09-22

Evans, J. E.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

502208, C07C 2960, C07C 33025

Patent

active

046956611

ABSTRACT:
In order to produce pure alpha, omega-C.sub.4 to C.sub.20 alkenols having purities in excess of 90% by dehydrating the corresponding alpha, omega-C.sub.4 to C.sub.20 diols, a catalyst is used which was prepared by using an alkaline earth orthophosphate or alkaline earth hydrogen phosphate or by reacting an alkaline earth compound with phosphoric acid into the corresponding phosphate and then adding an alkali or alkaline earth compound. This catalyst is suitable to be shaped, next it is dried and then calcined at temperatures between 350.degree. and 950.degree. C. The educt dehydration takes place at temperatures between 300.degree. and 500.degree. C. in selective and partial manner to obtain pure alpha, omega-C.sub.4 to C.sub.20 alkenols at conversions exceeding 90%.

REFERENCES:
patent: 3862964 (1975-01-01), Weisang et al.
patent: 3957900 (1976-05-01), Weisang et al.
patent: 4250343 (1981-02-01), Kaufhold et al.

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