Alunite treatment to obtain useful components - by oxidative roasting, reducing, leaching with sodium hydroxide soln., and calcining pptd. aluminium

The alunite is roasted at 580-620 degrees C in the presence of oxygen for 1-3 hrs. The roasted alunite is contacted with a reducing agent (e.g. kerosene oil) at above this temperature and the resulting reduced alunite is leached with an aq. soln. contg. NaOH. Aluminium hydroxide is thus pptd. with d...

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Bibliographische Detailangaben

1. Verfasser:	G. Z. NASYROV, E. I. ZEMLYANSKAYA ET I. V. RAVDONIKAS
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CHEMISTRY COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS INORGANIC CHEMISTRY METALLURGY
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