摘要
本文针对磁场在湿法冶金中的作用，利用化学分析测得磁场和不同温度的氯化铜浸出硫化砷渣的浸出速度，对每组数据是五次的平均值。利用阿累尼乌斯方程研究了浸出过程的动力学。实验结果证实浸出过程是化学反应控制，求得浸出反应的活化能由未经磁场作用的６７．１４ｋＪ／ｍｏｌ降至磁场作用下的５０．７２ｋＪ／ｍｏｌ，从而提高了浸出率和浸出速度。说明磁场作用于溶液中的极性分子，改变了一些分子的结构和能级状态，对一定的化学反应起到“激发活化”作用。指出了永磁磁场在湿法冶金过程中的应用前景。
The effect of magnetic fields on arsenic sulfide leaching process with copper chloride was examined at different temperatures.Dynamics of the leaching process was studied by Arrhenius equation.Results indicated that the activation energy of leaching in magnetic fields decreased to 50.72 kJ/mol from 67.24 kJ/mol,which meant leaching reaction was chemically controlled.According to the static analysis the magnetic field has changed the structure and energy level of polarization molecules in solutions,resulting in excited activation of chemical reactions.It is pointed out that permanent magnetic fields have application prospect in hydrometallurgy.
出处
《有色金属》
CAS
CSCD
1998年第3期76-79,共4页
Nonferrous Metals
基金
国家自然科学基金
湖南省自然科学基金
