Process for separation of organic phosphorous compound and other impurity from dilute surfuric acid

Sulphuric acid containing dilute, organic phosphorus compounds and further impurities, which is produced, for example, in the preparation of sulphonated arylphosphines, is purified by extraction with an amine which is sparingly soluble or insoluble in water.

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Bibliographische Detailangaben
Hauptverfasser: GERHARD DIEKHAUS, HARALD KAPPESSER
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:Sulphuric acid containing dilute, organic phosphorus compounds and further impurities, which is produced, for example, in the preparation of sulphonated arylphosphines, is purified by extraction with an amine which is sparingly soluble or insoluble in water.