INVESTIGATIONS ON THE DEHYDRATION OF CO, NA-A ZEOLITES

G TASI,I KIRICSI,F EVANICS, E NAGY,P FEJES

ACTA CHIMICA HUNGARICA-MODELS IN CHEMISTRY（1991）

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摘要

Dehydration of Co, Na-A zeolites was investigatigated by means of derivatography and i.r. spectroscopy. The results obtained from adsorption studies of N2 and O2 revealed the molecular sieving behaviour of the partially dehydrated Co, Na-A. No Bronsted acidity could be detected in Co-containing A zeolites by adsorption of ammonia. A probable mechanism was suggested to describe the dehydration of Co, Na-A zeolites.

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