T-BAMBP/磺化煤油萃取体系从盐湖卤水中萃取铷的动力学研究

Extraction Kinetics of Rubidium from the Salt Lake#$NLBrine with t-BAMBP/Sulfonated Kerosene

中文关键词:  铷  t-BAMBP  萃取  动力学

英文关键词:Rubidium  t-BAMBP  Extraction  Kinetics

中文摘要:

      采用上升单液滴法研究从盐湖卤水中萃取铷的动力学,主要考察了比界面积、水相铷浓度和油相(t-BAMBP/磺化煤油)浓度对萃取速率的影响,通过比界面积的研究发现t-BAMBP萃取铷的过程由界面化学反应和相内化学反应共同控制；通过对实验数据的非线性拟合得到了萃取体系的动力学方程,R=9.936×10_-7[Rb+]_1.134[t-BAMBP]_2.190,萃取速率对铷的反应级数为a=1.134,对t-BAMBP反应级数b=2.190,实验值和计算值的均方根误差为1.735 %。

英文摘要:

      The kinetics of the extraction of rubidium from salt lake brine system with t-BAMBP has been investigated by the means of Rising Drop Method．The influence of the interfacial area , concentration of the aqueous phase rubidium and concentration of oil phase (t-BAMBP/sulfonated kerosene) on the extraction rate were studied. By studying the effects of different interfacial areas on the extraction rate, it’s indicated that the process of t-BAMBP extraction of rubidium by interfacial chemical reaction and phase chemical reaction within the joint control. The rate equation of extracting rubidium determined by non-slope analysis was R=9.936×10-7[Rb+]1.134[t-BAMBP]2.190．Extraction rate of reaction order of a=1.134, t-BAMBP reaction order of b=2.190. The root mean square error of the experimental and calculated values of the extraction rate constants was 1.735%．#$NLKeywords: Rubidium; t-BAMBP; Extraction; Kinetics