Process for producing phosphoric ester salt of high purity

Details Process for producing phosphoric ester salt of high purity Process for producing phosphoric ester salt of high purity

1986-11-19

1988-04-19

Sutto, Anton H.

Organic compounds -- part of the class 532-570 series

Organic compounds

Phosphorus esters

C07F 909

Patent

active

047390921

ABSTRACT:
A phosphoric ester salt of high purity is produced by converting a phosphoric ester in a mixture containing the phosphoric ester and one or more nonionic compounds into a phosphoric ester salt by using a basic compound, and extracting nonionic compounds from the above mixture by using a mixed solvent of aliphatic hydrocarbons or cycloaliphatic hydrocarbons, a lower alcohol and water.
The above method is applicable to a non-crystalline phosphoric ester from which nonionic compounds cannot be removed by recystallization.
The above obtained phosphoric ester salt of high purity can be used as it is or after condensation.

REFERENCES:
patent: 2854468 (1958-09-01), Max
patent: 4051202 (1977-09-01), Arnold, Jr.

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