摘要
以P204和TBP作萃取剂,建立了从冶锌废渣中同时提取镓和铟的新工艺。在大于1mol/L酸度条件下,用P204-煤油作萃取剂实现了镓和铟萃取分离。经三级萃取后,铟的提取率达到99%以上,镓的萃取率小于1%。在大于4mol/L酸度条件下,用TBP-煤油作萃取剂可使镓的提取率接近100%,TBP有机相用1.5mol/L氯化铵溶液反萃,镓的反萃率可达99%以上。该提取工艺操作简单,可实现同时提取工业废渣中的镓和铟。
A new process to extract gallium and indium from zinc residues with P204 and TBP as extractant was established. Upon [H＋] 〉1 mol/L, gallium and indium can be separated from zinc residues applying P204 as extractant. Extraction rate of indium and gallium is 99% above and 1% below respectively after 3- stage extraction. With [H＋] 〉4 tool/L, extraction rate of gallium is up to 100% applying TBP as extractant. Stripping rate of gallium from TBP organic phase is 99% above applying NH4C1 as extractant. The developed extraction technology of gallium and indium is simple and meets industrial production requirement.
出处
《有色金属（冶炼部分）》
CAS
北大核心
2017年第5期28-32,共5页
Nonferrous Metals（Extractive Metallurgy)
基金
广东省自然科学基金项目(2014A030307024)
国家铅锌及建筑钢材产品质量监督检验中心公共检测平台项目(国质检科[2013]480号)
