발간논문

Home > KJMM 논문 > 발간논문

Vol.26, No.4, 345 ~ 354, 1988
Title
A Study of the Extraction of Beryllium from Decrepitated Beryl
이광학 Kwang Hak Lee
Abstract
A compact naturally occurring α-beryl was decrepitated at 960℃ to a porous β-structure, from which, beryllium extraction was investigated by sulfuric acid leaching at atmospheric pressure. The order of reaction as well as the overall reaction rate constant were calculated. Furthermore the apparent activation energy and the frequency factor were determined. A Langmuir-type equation was developed for the effect of pulp density and total surface area on the rate of beryllium extraction. The maximum theoretically attainable rate of beryllium extraction and proportionality constant were assessed. The effect of particle size on beryllium leaching with sulfuric acid is described by an exponential form. Beryllium extractions were realized approximately as high as 90%.
Key Words
| PDF
대한금속∙재료학회 │ (06633) 서울시 서초구 서초대로 56길 38 대한금속∙재료학회 회관 (서초1동 1666-12번지)
Tel : 070-4266-1646 │ FAX : 02-557-1080 │ E-mail : metal@kim.or.kr
Copyright ⓒ 2013 사단법인 대한금속∙재료학회 All rights reserved.