Extraction Of Cobalt From Spent CMB Catalyst Using Supercritical CO2

Archives of Metallurgy and Materials

S.M. Shin¹  S.-H. Joo² 

[1] MINERAL RESOURCES (KIGAM);METAL RECOVERY GROUP, KOREA INSTITUTE OF GEOSCIENCE &

关键词: Keywords: Supercritical CO2;    CMB;    Cobalt;    Manganese;   

DOI  :  10.1515/amm-2015-0167

学科分类：金属与冶金

来源: Akademia Gorniczo-Hutnicza im. Stanislawa Staszica / University of Mining and Metallurgy

【 摘 要 】

The metal extraction from spent CMB catalyst using supercritical CO2(scCO2) was investigated with single organic system, binary organic system and ternary organic system to extract metal ions. Leaching solution of spent CMB catalyst containing 389 mg L−1 Co2+, 187 mg L−1 Mn2+, 133 mg L−1 Na+, 14.97 mg L−1 Ca2+ and 13.2 mg L−1 Mg2+. The method consists of scCO2/ligands complexation process and metal extraction process at 60°C and 200bar. The result showed the Co and Mn was selectively extracted from Mg, Ca and Na in the ternary system of mixture of Cyanex272, DEA and Alamine304-I.

【 授权许可】

Unknown