국산 카올린의 흡착성에 관한 연구(II) 분체학적 고찰

• 영문명: Studies on the Adsorptive Properties of Korean Kaolin (II) Micromeritic Study of Korean Kaolin
• 발행기관: 대한약학회
• 저자명: 이계주(Gye Ju Rhee)
• 간행물 정보: 『약학회지』제29권 제4호 (1985년), 176~182쪽, 전체 7쪽
• 주제분류: 의약학 > 기타의약학
• 파일형태: PDF
• 발행일자: 1985.08.31

영문 초록

As a part of the studies on adsorptive properties of Korean halloysite clays, Hadong white clays of premium grade were examined for geometric pore structured by mercury porosimetry and for specific surface areas by nitrogen adsorption according to the BET procedure. Three size fractions of the native clay sample were derived from passage BS #100, #200 and #325 meshes, respectively. Several parameters lhus observed in relation to the pore structures are shown below: 1. The size fraction of BS #100, #200 and #325 show internal pore volumes of 25.3, 30.2 and 35.Om2g-1, respectively. 2. In the distribution curves of the cumulative pore volume against pore diameter, it has been shown that the larticle sizes, the steeper the distribution over the larger ranges of pore diameters. The converse is true the smaller particles. 3. Internal pore areas increase with decrease in pore sizes. It follows that the pores having diameters of 2g-1, respectively, and the calcined clay of BS #325 has a specific surface area near 30.4m2g-1.