LV Jianhua, LI Chunli, GENG Hui" />
CIESC Journal
• 催化、动力学与反应器 • 上一篇 下一篇
吕建华,李春利,耿辉
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LV Jianhua, LI Chunli, GENG Hui
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The kinetics of extracting boric acid from salt lake brine were investigated on the conditions of different initial concentrations of boric acid and 2-ethyl hexanol, temperature and the interfacial area of two-phase.The method of rising drop technique was used in the experiment with 2-ethyl hexanol as the complexing agent and toluene as a diluent.The result shows that the extraction rate of boric acid increases with the increasing of the initial concentrations of boric acid in the aqueous phase and 2-ethyl hexanol in the organic phase, the interfacial area of two-phase.The extraction reaction between boric acid and 2-ethyl hexanol is the quick reaction, which occurred in the interfacial area of two-phase.The extraction process is the diffusion-controlled mode by the calculation of the apparent activation energy.The kinetics equation of extracting boric acid with 2-ethyl hexanol regressed from the experimental data with the linear least square method can be expressed at pH=1(aqueous phase) and 318.15 K, and the relative deviation of rate constant is 5.318%.
吕建华,李春利,耿辉. 异辛醇-甲苯萃取盐湖卤水中硼酸的动力学 [J]. CIESC Journal.
LV Jianhua, LI Chunli, GENG Hui. Kinetics for extraction of boric acid from salt lake brine by 2-ethyl hexanol-toluene[J]. .
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https://hgxb.cip.com.cn/CN/Y2010/V61/I12/3124