Process of purifying dihydrocarbylchlorothiophosphates

Details Process of purifying dihydrocarbylchlorothiophosphates Process of purifying dihydrocarbylchlorothiophosphates

1999-02-12

1999-09-21

Ambrose, Michael G.

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

Organic compounds

Phosphorus esters

558202, C07F 914

Patent

active

059556269

ABSTRACT:
Crude dihydrocarbylchlorothiophosphate product contaminated with dihydrocarbylpolysulfide and/or dihydrocarbylchlorophosphate is upgraded by treating the crude product with chlorine followed by an aqueous solution of reducing agent, separating an aqueous phase from the organic, then drying to obtain the resultant product.

REFERENCES:
patent: 3089890 (1963-05-01), Chupp et al.
patent: 3098866 (1963-07-01), Divine
patent: 4247490 (1981-01-01), Bergeron et al.
patent: 4354983 (1982-10-01), Roszinski et al.

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