Process for the dehalogenation of halogen-containing aromatic co

Details Process for the dehalogenation of halogen-containing aromatic co Process for the dehalogenation of halogen-containing aromatic co

1978-09-12

1980-06-03

Doll, John

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

252463, 252465, 252466J, 260580, C07C 8524, C07C 8511

Patent

active

042061482

ABSTRACT:
A process for the dehalogenation of halogen-containing aromatic compounds takes place in the vapor phase, at a temperature of between 280.degree. and 420.degree. C., by the action of hydrogen in the presence of a controlled-action hydrogenation catalyst deposited on an alumina-based support wherein the support used is modified, at least on the surface, by the incorporation of a metal in the form of a salt or an oxide, this incorporation consisting in treating the support with the said metal salt or metal oxide and then carrying out a calcination at a temperature ranging from about 500.degree. to 1,000.degree. C.

REFERENCES:
patent: 3148217 (1964-09-01), Freyermuth et al.
patent: 3839193 (1974-10-01), Hayes
patent: 3867312 (1975-02-01), Stephens
patent: 3888929 (1975-06-01), Rivier
patent: 3912782 (1975-10-01), Kiel et al.
patent: 3912783 (1975-10-01), Wedemeyer et al.
patent: 4022795 (1977-05-01), Bamfield et al.
patent: 4085141 (1978-04-01), Wedemeyer et al.
patent: 4100109 (1978-07-01), Muller

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