钛胶海水提铀动力学研究Ⅰ——吸附活化能测定——一种直接用于天然海水的测定方法
A KINETIC STUDY OF THE EXTRACTION OF URANIUM FROM SEA WATER BY TITANIC GEL I MEASUREMENT OF THE ACTIVATION ENERGY OF ADSORPTION——A METHOD DIRECTLY USED FOR NATURAL SEA WATER.
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摘要: 在反应动力学中,活化能是一种比较基本的数据,它可以用于确定过程的动力学特性,和研究过程的机制.因此,活化能的测定是动力学研究的一个重要方面.其测定方法通常是以过程的动力学方程为基础,测定不同温度下的反应速率,并根据Arrhenius方程式计算得出.Abstract: Some previous works and our experimental data have shown that the adsorption process of Uranium on the titanic gel in sea water could be treated by using langmuir's theory of monolayer adsorption.A method for determining the activation energy of adsorption is proposed on the basis of this theory with some simplifying assumptions in connection with the characteristics of the adsorption process——low velocity of adsorption,long time to reach equilibrium,and low percentage extraction.By use of this method,the activation energy of uranium adsorbed on the titanic gel in the natural sea water has been determined and found to be about 10 kcal./mol.
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营野昌义、小泽义弘、向坊隆,日本原子力学会赫,1970,12,12. 尾方升,日本海水学会甜,1971,24,5. 山下寿生、小泽义弘、中岛史登、村田寿典,日本化学会瑟.1978,8. Davies,R.V.,Kennedy,Dr.J.,Mcllroy,R.W.,and Spence,Dr.R.,Nature,1964.203.495. -
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