Calcination of hydrated alumina in a rotary kiln - has kiln fired by stoichiometric mixt. of natural gas and oxygen@ burner, provides alumina for electrical insulators

Process for the calcination of hydrated alumina in a kiln at a mean temp. of 1000-1700 deg.C, opt. in the presence of calcination aid, operates kiln using a burner supplied with mixt. of oxygen and natural gas. The oxygen-natural gas mixt. is stoichiometric, the kiln is a rotary kiln, and the hydrat...

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Hauptverfasser:	KARASCH, OLAF-MIN., 5012 BEDBURG, DE, HOFIUS, HENNING-MIN., 5100 AACHEN, DE, GEORGIEV, LJUBOMIR., 5000 KOELN, DE
Format:	Patent
Sprache:	eng ; ger
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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