Process for the recovery of acid organophosphorus compounds and/

Details Process for the recovery of acid organophosphorus compounds and/ Process for the recovery of acid organophosphorus compounds and/

1987-10-29

1990-02-06

Sutto, Anton H.

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

Organic compounds

Phosphorus esters

C07C 908

Patent

active

048989630

ABSTRACT:
The invention relates to the recovery of acid organophosphorus compounds and/or organophosphate ions present in an aqueous solution.
According to the invention, the aqueous solution is contacted with at least one organic amino compound which is not very soluble in water, chosen from among compounds having at least one amine function, the salts of these amino compounds and the quaternary ammonium salts and the complex formed is separated from the aqueous solution by reacting these acid organophosphorus compounds and/or organophosphate ions with the organic amino compound or compounds.
The amino compound can be a trialkylamine, e.g. triisooctyl amine and contacting and separation can be performed in a co-current or counter-current liquid-liquid extraction installation.

REFERENCES:
patent: 3150149 (1974-09-01), Schmitt

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