Recovery of Copper from Leaching Solution of Copper Smelting Ash
Recovery of Copper from Leaching Solution of Copper Smelting Ash作者机构:Hubei Key Lab.Novel Chem.Reactor & Green Chem.Technol.Wuhan Inst.Technol Institute of Nuclear and New Energy Technology Tsinghua University
出 版 物:《过程工程学报》 (The Chinese Journal of Process Engineering)
年 卷 期:2007年第7卷第2期
页 面:273-277页
核心收录:
学科分类:080603[工学-有色金属冶金] 08[工学] 0806[工学-冶金工程]
摘 要:An efficient and reliable approach based on solvent extraction to selectively recover copper from leaching solution of Jinchuan copper smelting ash has been developed in this *** the extraction isotherm of 50%((?)) N902 with initial aqueous acidity of 19.6 g/L was determined at 25℃.The results show that the extractant,N902,has good selectivity to copper, and its saturated capacity of copper under the given conditions is over 23 g/*** recovery rate of copper in the extraction is over 99%.And copper extraction equilibrium is reached in 90 s using 50% N902 with kerosene as the diluenting agent at an organic and aqueous volume phase ratio(O/A)of ***,over 99.5% of the loaded copper in the organic phase could be stripped by applying 196 g/L H_2SO_4 as the stripping agent.