Process for removing organic phosphorous compounds and other imp

Details Process for removing organic phosphorous compounds and other imp Process for removing organic phosphorous compounds and other imp

1994-04-14

2000-07-04

Griffin, Steven P.

Chemistry of inorganic compounds

Sulfur or compound thereof

Oxygen containing

423522, 423529, C01B 1790

Patent

active

060834706

ABSTRACT:
Sulfuric acid which contains dilute organic phosphorus compounds and other impurities and is obtained, for example, during preparation of sulfonated arylphosphines, is purified by extraction with an amine which is sparingly soluble or insoluble in water.

REFERENCES:
patent: 2766275 (1956-10-01), Connelly et al.
patent: 3992247 (1976-11-01), Bodenbenner et al.

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