Photochemical process for the production of halogeno-alkanes

Details Photochemical process for the production of halogeno-alkanes Photochemical process for the production of halogeno-alkanes

1975-07-07

1977-09-20

Williams, Howard S.

Chemistry: electrical and wave energy

Processes and products

Processes of treating materials by wave energy

204163R, 250527, B01J 110, B01K 100

Patent

active

040495167

ABSTRACT:
In a photochemical process, halogeno-alkanes are produced by irradiation of an ethylenic compound and of an excess amount of bromhydric acid, the reaction being advantageously carried out in the presence of a certain amount of the halogeno-alkane compound to be obtained. The ethylenic compound concentration is of 1 mole to 1.5 mole per liter in the reaction medium; the reaction is continued until a 90% conversion is reached. 3-bromo-1-chloro-propane is obtained with a good yield by irradiation of allyl chloride and HBr. Apparatus is provided for carrying out the process batchwise and in continuous operation.

REFERENCES:
patent: 2925369 (1960-02-01), Grabiel et al.
patent: 3424754 (1969-01-01), Taplin

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