Manufacture of perchloroethylene and trichloroethylene by cataly

Details Manufacture of perchloroethylene and trichloroethylene by cataly Manufacture of perchloroethylene and trichloroethylene by cataly

1989-12-15

1991-04-02

Mars, Howard T.

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

Organic compounds

Halogen containing

502225, C07C 1715, C07C 19156

Patent

active

050048490

ABSTRACT:
A superior catalyst for the oxychlorination of C.sub.2 hydrocarbon feeds comprises a mixture of copper chloride and alkali metal chloride, for instance, potassium chloride, and preferably also magnesium chloride, which mixture is deposited on an alumina support having a surface area in excess of 20 and less than 100 m.sup.2 /g. The thermal stability of such a catalyst composition can be further improved by incorporating 0.2 to 5 percent silica in the alumina support. The use of such microspheroidal catalyst in the production of perchloroethylene and trichloroethylene by oxychlorination of a C.sub.2 hydrocarbon feed in a fluidized bed reactor results in particularly good process efficiencies in terms of high HCl conversion, and good flexible selectivity to specifically desired product, reduced burning, long on-stream times, and relatively low corrosion rates.

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