Process for removing organic phosphorus compounds and other...

Details Process for removing organic phosphorus compounds and other... Process for removing organic phosphorus compounds and other...

C - Chemistry, Metallurgy

01

B

C01B 17/90 (2006.01) C01B 17/92 (2006.01)

Patent

CA 2083734

Frankfurt, 29.11.1991 PAT/rcht-sei Hoe 91/Y010 Hoechst Aktienqesellschaft, Frankfurt am Main 80 Abstract of the disclosure 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 spar- ingly soluble or insoluble in water.

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