Process for producing polyfluoroalkyl phosphates

Details Process for producing polyfluoroalkyl phosphates Process for producing polyfluoroalkyl phosphates

1977-11-30

1979-03-20

Sutto, Anton H.

Chemistry of carbon compounds

Dipeptides, e.g., aspartame, anserine, carnosine, etc.

260924, 260925, 260955, C07F 909

Patent

active

041453824

ABSTRACT:
An aqueous dispersion of an ethanol amine salt of polyfluoroalkyl phosphate is prepared by using a polyfluoroalkanol, a phosphorus oxyhalide water and an ethanol amine. The process for producing a polyfluoroalkyl phosphate comprises the first step of reacting a polyfluoroalkanol containing small amount of water with phosphorus oxyhalide and the second step of producing a polyfluoroalkyl phosphate by hydrolyzing the reaction product and the third step of reacting the reaction product with ethanol amine in a large amount of water.

REFERENCES:
patent: 3083224 (1963-03-01), Brace et al.
patent: 3422166 (1969-01-01), Davis
patent: 3425912 (1969-02-01), Deutsch et al.
patent: 4029722 (1977-06-01), Demarcq et al.

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