Li-spinel catalyst for non-oxidative dehydrogenation process

Details Li-spinel catalyst for non-oxidative dehydrogenation process Li-spinel catalyst for non-oxidative dehydrogenation process

1982-11-04

1983-07-26

Davis, Curtis R.

Chemistry of hydrocarbon compounds

Aromatic compound synthesis

Having alkenyl moiety, e.g., styrene, etc.

585445, 585629, 585630, 585631, 585661, 585662, 585663, C07C 264, C07C 509, C07C 5333

Patent

active

043955797

ABSTRACT:
The preparation of a compound of formula R.sup.1 --C(R.sup.2).dbd.CH.sub.2 (R.sup.1 and R.sup.2 are a phenyl, alkyl or alkenyl group or a hydrogen atom) by contacting a mixture of steam and a compound of formula R.sup.1 --C(R.sup.2)(H)--CH.sub.3 at elevated temperature under non-oxidative dehydrogenation conditions with a catalyst having a spinel structure allows lower ratios steam to compound of formula R.sup.1 --C(R.sup.2)(H)--CH.sub.3, a higher selectivity to the compound of formula R.sup.1 --C(R.sup.2).dbd.CH.sub.2 and a lower temperature when lithium is present in the spinel structure.

REFERENCES:
patent: 3626021 (1971-12-01), Michaels et al.
patent: 3960776 (1976-06-01), Ellis et al.
patent: 4172854 (1979-10-01), Ellis et al.
patent: 4220560 (1980-09-01), Anquetil et al.

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