Lee, MS Ahn, JG Oh, YJ 2024-01-21T09:40:29Z 2024-01-21T09:40:29Z 2021-09-01 2002-12 1345-9678 https://pubs.kist.re.kr/handle/201004/139029 Vacuum refining experiments of indium and gallium metals have been performed. When indium metal of 99.97% purity was refined at 1273 K and 1.3 x 10(-3) Pa for one hour, Pb and Bi were effectively removed from indium metal. After refining 99.9% Ga at 1373 K and 1.3 x 10(-3) Pa for six hours, removal of Bi, Pb, Zn, Mg, Ca and Fe were confirmed. The difference of temperature between indium and gallium at which the recovery percentage was abruptly decreased was related to the difference of boiling temperatures of both metals at the pressure of 1.3 x 10(-3) Pa. The vaporization rate of solvent metals obtained from experiments were compared with those calculated by Langmuir equation. English JAPAN INST METALS Production of high-purity indium and gallium metals by vacuum refining Article 10.2320/matertrans.43.3195 1 MATERIALS TRANSACTIONS, v.43, no.12, pp.3195 - 3198 MATERIALS TRANSACTIONS 43 12 3195 3198 scie scopus 000180681300046 2-s2.0-0036998681 Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering Materials Science Metallurgy & Metallurgical Engineering Article indium gallium vacuum refining