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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 26, Number 5
JKCSEZ 26(5)
October 20, 1982

Title	Studies on the Solid State Reaction Kinetices. Mullitation of Domestic Kaolin and α-Al2O3 고체간 불균-반응의 속도론 연구. 고령토의 물라이트화반응
Author	Hee Cheol Lee, Eun San Sohn, Ikchoon Lee 이희철, 손은산, 이익춘
Keywords
Abstract	정제한 고령토와 α-Al2O3을 침강법에 의해 10μ 이하의 것만 포집하여 이 두 물질을 3A-2S의 비율로 혼합하여 고온인 1350 ~ 1450℃에서 소성하여 반응속도를 측정하였다. 속도의 측정결과는 Jander의 식에 잘 맞았으며 Jander식의 수정식들이 만족할만한 결과를 주지 못하였다. 광화제(mineralizer)를 넣었을 때는 같은 온도에서 수율이 15% 정도 높았고 활성화 에너지는 광화제를 넣지 않았을 때의 142kcal/mol보다 적은 90kcal/mol로 반응이 쉽게 진행됨을 보여 주었다. Purified kaolin and α-Al2O3 particiles which are less then 10μ in diameter were collected through sedimentation and mixed in the ratio of 3A-2S and then its reaction rates were measured at temperatures 1350 to 1450℃. The kinetic data were correlated with Jander's equation, but not with modified Jander's equation. With mineralizer added, yield increased about 15% and activation energy decreased from 142kcal/mol to 90kcal/mol.
Page	349 - 354
Full Text	PDF

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