Process for the manufacture of 2-chloroethane-phosphonic acid

Details Process for the manufacture of 2-chloroethane-phosphonic acid Process for the manufacture of 2-chloroethane-phosphonic acid

1975-08-19

1977-04-19

Evans, Joseph E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07F 938

Patent

active

040188191

ABSTRACT:
An improved process for the manufacture of 2-chloroethane phosphonic acid in which 2-chloroethane phosphonic acid bis(2-chloroethyl)-ester is heated with excess hydrogen chloride in the presence of 0.1 to 31% by weight of water at temperatures above 100.degree. C under pressure, the 1,2-dichloroethane formed during the reaction is continuously or discontinuously distilled off and the decrease in pressure is compensated by adding gaseous hydrogen chloride.

REFERENCES:
patent: 3787486 (1974-01-01), Randall et al.
patent: 3808265 (1974-04-01), Randall et al.
Kabachnik et al., "Chem. Abstracts", vol. 42 (1948), cols. 7241-7243.
Luder et al., "General Chemistry", (1959), pp. 169-182.

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