摘要
以云南某氧化铜矿的氨浸液作为萃取原液,研究萃取-洗涤-反萃过程。用McCabe-Thiele等温线法,推算二级萃取和一级反萃过程中各产物含铜浓度的变化。采用分流萃取的工艺,可以避免返回使用的萃余液被稀释。对含氨量测定表明,氨浸-萃取体系的氨挥发量和水膨胀均可控制。
With the ammoniac leaching solution of copper oxidized ore in Yunnan as the pregnant solution,the process of the extraction-washing-stripping is investigated.The value changes of copper content in every product of two-stages extraction and one-stage strip are calculated by using the method of McCabe-Thiele Isotherm.With the technology of split-circuit extraction,the diluting of the returned raffinate can be avoided.Through the determination of ammonia content,it is proved that the volatile matter content of the ammonia and the water-expansion can be controlled.
出处
《有色金属（冶炼部分）》
CAS
北大核心
2011年第7期3-5,11,共4页
Nonferrous Metals（Extractive Metallurgy)
关键词
冶金技术
氧化铜矿
溶剂萃取
氨浸液
McCabe-Thiele等温线
分流萃取
metallurgical technology
oxidation copper ore
solvent extraction
ammoniac leaching solution
McCabe-Thiele isotherm
split-circuit extraction
