Catalysts for para-ethyltoluene dehydrogenation

Details Catalysts for para-ethyltoluene dehydrogenation Catalysts for para-ethyltoluene dehydrogenation

1982-12-23

1985-01-29

Shine, W. J.

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Inorganic carbon containing

502243, 502306, 502328, 585444, 585445, B01J 2378, B01J 2386

Patent

active

044966628

ABSTRACT:
Para-ethyltoluene dehydrogenation catalyst compositions and processes for using such catalysts are provided. The catalyst compositions comprise a catalytically active iron compound, e.g., iron oxide; a potassium catalyst promoter, e.g., potassium carbonate; an optional chromium compound stabilizer, e.g., chromic oxide, and a magnesium compound, e.g., magnesium oxide. Utilization of particular amounts of magnesium compound in dehydrogenation catalyst compositions of this type will provide a catalyst especially suitable for promoting the selective dehydrogenation of para-ethyltoluene to form para-methylstyrene in improved yields.

REFERENCES:
patent: 2888499 (1959-05-01), Pitzer et al.
patent: 3100234 (1963-08-01), Lee
patent: 4143083 (1979-03-01), Riesser

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