Process for the purification of halo-aldehydes

Details Process for the purification of halo-aldehydes Process for the purification of halo-aldehydes

1976-05-12

1977-10-18

Daus, Donald G.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260 67FP, C07D 4714, C07D 4716

Patent

active

040545555

ABSTRACT:
Purification of haloaldehydes in a process that consists essentially of a first stage of purification in which the haloaldehydes are brought into contact with an absorbent solid, basic in nature, in the presence of water or free alcohols, and of a second stage of purification in which the halo-aldehydes thus treated are brought into contact with a solid absorbent carrying sulphonic, phosphonic or carboxylic acid groups in the form of salts of alkali or alkaline earth metals.

REFERENCES:
patent: 2504942 (1950-04-01), Williams et al.
patent: 2606864 (1952-08-01), Cave et al.

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