Verfahren zur Reinigung von Aluminiumsulfat

Aluminium sulphate soln. purification. Al2(SO4)3 solns. contg. Fe and Cr, and Ti and/or Zr are purified by treatment with an oxidizer (pref. Cl2), pref. at 150 - 177 degrees C and 3.5 - 14 atm.; and then contacted with a H2O - insol. amine, pref. lauryl (trialkyl-methyl)amine in petroleum distillate...

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Bibliographische Detailangaben
Hauptverfasser:	W. MICHENER JUN.,AUBREY, H. KOO,RAYMOND, J. CARLSON,EMERY
Format:	Patent
Sprache:	ger
Schlagworte:	CHEMISTRY COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS FERROUS OR NON-FERROUS ALLOYS INORGANIC CHEMISTRY METALLURGY PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	Aluminium sulphate soln. purification. Al2(SO4)3 solns. contg. Fe and Cr, and Ti and/or Zr are purified by treatment with an oxidizer (pref. Cl2), pref. at 150 - 177 degrees C and 3.5 - 14 atm.; and then contacted with a H2O - insol. amine, pref. lauryl (trialkyl-methyl)amine in petroleum distillate, as ion-exchanger. The ion-exchange liquid is regenerated with is not 6% H2SO4, treated with 10 - 20 Na2CO3 soln. to reduce sulphonate to is not >25%, and recirculated.