발간논문

Home > KJMM 논문 > 발간논문

Vol.36, No.11, 1859 ~ 1866, 1998
Title
Separation of Indium and Gallium in Sulfuric Acid Solutions
이만승 , 이응조 Man Seung Lee , Eung Cho Lee
Abstract
Solvent extraction and stripping experiments had been performed to separate indium and gallium in sulfuric acid solutions. In extraction, nearly 99% of indium in the mixed solutions could be extracted to the organic phase with the stoichiometric concentration of D₂EHPA in the experimental ranges. It was found that kerosene as a diluent was superior to benzene in respect of loading capacity. In stripping experiments of the loaded organic phase with acid solutions, the stripping percentage of indium decreased from 95% to 5% with pH, while separation factors increased with the pH of the stripping solutions. From simulation experiments for the multistage counter-current extraction, the possibility of nearly perfect separation of indium and gallium was obtained by a two-stage extraction of aqueous feed with a solvent in which the concentration of D₂EHPA was maintained at the stoichiometric ratio to the concentration of indium.
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.