Hydrogenation of acetylene contained in hydrogen chlorine gas, a

Details Hydrogenation of acetylene contained in hydrogen chlorine gas, a Hydrogenation of acetylene contained in hydrogen chlorine gas, a

1986-04-24

1987-05-26

Trousof, Natalie

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

Organic compounds

Halogen containing

570243, 423245, 423488, C07C 17156

Patent

active

046688331

ABSTRACT:
A process for hydrogenating acetylene in hydrogen chloride gas using the catalytic palladium supported on silicon carbide carrier whose iron content is specified to be not more than 1,000 ppm. The catalyst has the advantages of enhancing the conversion of acetylene into ethylene, improving the selectivity of ethylene, and retaining catalytic activity over a long time at a large space velocity. This process can be effectively applied to the hydrogenation of acetylene in hydrogen chloride gas separated from the thermally decomposed products of 1,2-dichloroethane which occurs in the production of vinyl chloride; namely, the hydrogen chloride gas that contains thus hydrogenated acetylene (ethylene) can be recycled in such an effective way that 1,2-dichloroethane can be produced economically.

REFERENCES:
patent: 1836927 (1931-12-01), Linckh et al.
patent: 3175884 (1965-03-01), Kuhn
patent: 3488398 (1964-04-01), Harpring et al.
patent: 4206188 (1980-06-01), Megerle

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