PROCESSO PER LA PRODUZIONE DI OSSIDO DI CALCIO, OSSIDO DI STRONZIO ED OSSIDO DI BARIO AD ELEVATA VELOCITA' DI ASSORBIMENTO DI ACQUA ED

A process for preparing calcium oxide, strontium oxide or barium oxide consists in the treatment of the corresponding hydroxides following the reactions (I): Ca(OH)2 } CaO + H2O; (II): Sr(OH)2 } SrO + H2O; (III): Ba(OH)2 } BaO + H2O; at temperatures comprised between 400 and 900 DEG C during a time...

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1. Verfasser:	BOFFITO CLAUDIO
Format:	Patent
Sprache:	ita
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS INORGANIC CHEMISTRY METALLURGY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	A process for preparing calcium oxide, strontium oxide or barium oxide consists in the treatment of the corresponding hydroxides following the reactions (I): Ca(OH)2 } CaO + H2O; (II): Sr(OH)2 } SrO + H2O; (III): Ba(OH)2 } BaO + H2O; at temperatures comprised between 400 and 900 DEG C during a time between 1 and 15 hours under vacuum or in an inert gas atmosphere. Preferably said reaction is caused to take place in a capsule with at least a portion of surface being permeable to the gas flow.