서지주요정보
Chromium (Ⅲ) oxide 의 용해반응 특성에 관한 연구 = A study on the dissolution reaction characteristics of chromium(Ⅲ) oxide
서명 / 저자 Chromium (Ⅲ) oxide 의 용해반응 특성에 관한 연구 = A study on the dissolution reaction characteristics of chromium(Ⅲ) oxide / 최왕규.
저자명 최왕규 ; Choi, Wang-Kyu
발행사항 [서울 : 한국과학기술원, 1986].
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소장정보

등록번호

4103632

소장위치/청구기호

학술문화관(문화관) 보존서고

MCE 8631

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초록정보

The study of dissolution reaction mechanism of chromium(III) oxide particles was carried out in a stirred batch-type dissolver under the constant bulk phase conditions by using relatively small amount of $Cr_2O_3$ particles. The dissolution reaction rate, being relatively show chemical controlled reaction, was inversely proportional to the bulk phase $KMnO_4$ concentration, which is understood as the effect of the production of the solid by-product, $MnO_2$ which take a role to block the internal pores of the particles, so that the deactivation of the active sites occurs during the reaction. The particle structures were analysed by porosimeter, SEM, and EDAX. And the overall reaction rate was measured by taking time samples. The following kinetic model for the oxidative dissolution of chromium(III) oxide particles was proposed through the experimental results and the model satisfactorily predicted the experimental results within the experimental error range : $r=2.29 exp(-4050/RT) Sp (1-x) (\phi_o+\phi) [MnO_4]_o^{-0.7} [H^+]_o^{0.4}-\frac{d\phi}{dt}=k_{\phi}{\cdot}{\phi}^{1.1}$

서지기타정보

서지기타정보
청구기호 {MCE 8631
형태사항 ii, 77 p. : 삽도 ; 26 cm
언어 한국어
일반주기 부록 수록
저자명의 영문표기 : Wang-Kyu Choi
지도교수의 한글표기 : 오원진
지도교수의 영문표기 : Won-Zin Oh
학위논문 학위논문(석사) - 한국과학기술원 : 화학공학과,
서지주기 참고문헌 : p. 59-60
주제 Particles.
화학 공정. --과학기술용어시소러스
용해. --과학기술용어시소러스
Chemical processes.
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