摘要
<正> N1923是国产仲碳伯胺萃取剂,已见其对贵金属的萃取理论研究。我们曾考察过它对硫氰酸钴的萃取平衡及该体系的萃合物组成,本文报道用生长液滴法对N1923萃取硫氰酸钴的动力学研究结果。 1 实验 1.1 主要试剂 萃取剂为伯胺N1923(中科院上海有机所实验厂,6.66×10~2Pa、175～205℃下减压蒸镏提纯),其煤油溶液的浓度用标准酸滴定。
The forward initial rate of the extraction of cobalt(Ⅱ) thiocyanate with primary amine N1923 was measured by means of the growing drop method at 25 ± 1℃.The effect of the temperature on the extraction rate was also investigated. The experimental results show that the rate-determining step of the .extraction process may be the following interfacial reactions:The activation energy of the process was calculated to be 15.1 kJ.mol-1.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1989年第4期431-433,共3页
Chemical Journal of Chinese Universities
关键词
钴
硫氰酸钴
伯胺N1923
萃取
Extraction kinetics, Primary amine N1923, Cobalt( Ⅱ) thiocyanate, Cobalt(Ⅱ)
