摘要
研究用Lix54从氧化锌矿氨浸出液中选择性萃取锌。在(NH4)2SO4-NH4OH体系中,Lix54萃取锌的平衡分配比最 大,在25℃,pH=8,VO/VA=1:1的条件下,锌一级萃取率可达78％。二级反萃,锌浓度达90g/L以上,能够得到符合电积锌要 求的反萃液。
The selective solvent extraction process of zinc from leaching solution with ammonia is investigated. In the (NH4)2SO4-NH4OH system, the distribution radio of zinc extraction with Lix54 is the maximum. The extraction rate of zinc is up to 78 % in first stage under the condition of 25℃, pH = 8 and VO/VA = 1:1. The zinc concentration in strip solution with two stages is over 90g/L. The strip solution can meet the requirements of zinc electro-winning.
出处
《有色金属》
CSCD
2004年第1期37-39,共3页
Nonferrous Metals
基金
云南省科学基金资助项目(2000E0027M)
关键词
氨浸出液
萃取
锌
试验研究
冶金技术
metallurgical technology
zinc
solvent extraction
Lix54
ammonia leaching solution
