氯化甲基三烷基铵萃取金的研究  

Extraction of Gold(Ⅰ) Cyanide by the Methyl Tri-n-Alkyl Ammonium Chloride

作　　者：张天喜[1] 谢景林[2] 周维金[2] 闫文飞[1] 吴瑾光[1] 陈景[3] 

机构地区：[1]北京大学化学与分子工程学院,北京100871 [2]北京大学技术物理系,北京100871 [3]昆明贵金属研究所,云南昆明650221

出　　处：《原子能科学技术》2000年第z1期71-74,共4页Atomic Energy Science and Technology

基　　金：国家自然科学基金资助项目 !(39730 16 0 );云南省省校科技合作项目;国家重点基础研究发展规划项目!(G19980 6 1311)

摘　　要：用198 Au示踪法研究在碱性条件下氯化甲基三烷基铵 (N2 63)萃取KAu(CN) 2 。实验考察水相金浓度、助剂或溶剂及相比对金萃取的影响 ,有机相金含量与水含量间的关系。结果表明 :N2 63对金萃取能力较强 ,金的萃取并不需要水的参与。The solvent extraction of KAu(CN)2 from alkaline solution by the tri-n-alkyl ammonium chloride (N263) using 198Au tracer has been investigated.The effects of various parameters,such as gold (Ⅰ) concentration in aqueous phase,cosolvent,phase ratio on the extraction of gold (Ⅰ) are studied.The results demonstrate that almost all of gold (Ⅰ) in aqueous phase can be extracted into the organic phase.Water concentration decreases significantly with the increase of gold (Ⅰ) concentration in the organic phase.No water molecule could be involved in the extraction of gold (Ⅰ).

关 键 词：溶剂萃取 金氰化物 示踪剂198Au 表面活性剂 

分 类 号：TL[核科学技术]