酸洗后201×7树脂上金属铜的解吸研究  

Elution of copper on 201×7 resins eluted by H_2SO_4 solution

作　　者：李秀玲[1] 宋永辉[1] 兰新哲[1] 邢相栋[1] 

机构地区：[1]西安建筑科技大学贵金属工程研究所

出　　处：《黄金》2008年第3期51-54,共4页Gold

基　　金：国家863计划资助项目(2003AA32X090)

摘　　要：针对硫酸溶液可以有效洗脱树脂上的氰化物和锌,但不能洗脱铜的工艺问题,选择氨水溶液对酸洗后201×7树脂上的铜进行解吸;试验研究了解吸过程的时间、温度以及超声波作用等条件对解吸率的影响,并进行了X射线荧光分析。试验结果表明,在25℃时,8%的氨水溶液可以有效解吸酸洗后201×7树脂上负载的铜,解吸率可以达到85%,解吸速率常数k=4.93×10-4/s,解吸过程的表观活化能为12.058kJ/mol。According to the problem that H2SO4 solution can elute both cyanide and zinc on resins, expect copper, the authors use ammonia solution to elute copper on the 201 ×7 resins which has be eluted by H2SO4 solution. Studies on the effect of eluting time, temperature and ultrasonic on elution rate are carried out and X-ray fluorescence are used in analysis. The studies show that copper can be eluted effectively with 8% ammonia solution, and the elution rate can reach 85% ,the constant k =4.93 × 10^-4/s and the apparent activation energy is 12.058kJ/mol.

关 键 词：201×7树脂 铜 氨水 解吸 

分 类 号：X751[环境科学与工程—环境工程]