【摘 要】
：
The kinetics of extracting the light rare earth in P204-HCl-H3AOH system was investigated by constant inteffacial area method.The results show that, the rate of P204 extracting light rare earths incre
【机 构】
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Northeastern University, School of Materials & Metallurgy, Shenyang Liaoning 110004, P.R.China
【出 处】
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第五届国际湿法冶金学术会议(5th International Conference on Hydrometallurg
论文部分内容阅读
The kinetics of extracting the light rare earth in P204-HCl-H3AOH system was investigated by constant inteffacial area method.The results show that, the rate of P204 extracting light rare earths increases with stirring speed, temperature, specific inteffacial area.According to Arrhennius equation, the apparent activation energy of extracting light rare earths are ELa=19.11KJ/mol, ECe=13.13 KJ/mol, EPr=10.22 KJ/moland ENd=8.39 KJ/mol respectively, which illustrates that this process has obvious diffusion velocity control characteristic.
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