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Rotary 제법을 이용한 제올라이트 Membrane 제조 및 특성연구
김권일,김태환,이범석,Joshi, P. N.,정헌도,김종휘 한국공업화학회 2000 응용화학 Vol.4 No.2
The conventional coating methods like dip-, spray- and film coating used to prepare zeolite membrane usually gives in-homogeneous membrane. Here we have used an rotary method to prepare zeolite membrane where a alumina tube was rotated at constant speed and at constant temperature in the zeolite reaction mixture. The zeolite membrane characterized by XRD and SEM was of Zeolite A type. The efficiency of the zeolite membrane was tested for its selectivity toward oxygen in 50% O₂/N₂ gas mixture. There was an increase of 2.8 wt% in the oxygen concentration. The surface area of the membrane was 22 ㎠.