化工进展2017，Vol.36Issue(8)：2854-2858,5.DOI:10.16085/j.issn.1000-6613.2016-2159
电石渣和氯化镁制备氢氧化镁过程中的动力学
Kinetics of producing magnesium hydroxide with carbide slag and magnesium chloride
摘要
Abstract
The reaction of using carbide slag and magnesium chloride as raw material to precipitate magnesium hydroxide in normal temperature was studied.The result showed that the impurity of carbide slag suppressed the secondary nucleation,resulting in the growth of magnesium hydroxide and bigger particle size.The nucleation of magnesium hydroxide was heterogeneous which was easy to take place due to the free energy of nucleation.The growth kinetics was modeled,and the results showed when the concentration of Mg2+ was higher than that of Ca2+,the growth rate was of no relevance to the concentration,while when the concentration of Mg2+ was lower than that of Ca2+,the growth rate increased with the increase of the concentration of Ca2+,indicating that the increase of the concentration of CaC12 could promote the growth of magnesium hydroxide.关键词
电石渣/氢氧化镁/结晶/动力学Key words
carbide slag/magnesium hydroxid/crystallization/kinetics分类
化学化工引用本文复制引用
王健康,张志宏,王婧,付振海,赵冬梅,乔英钧,马艳芳,张永明..电石渣和氯化镁制备氢氧化镁过程中的动力学[J].化工进展,2017,36(8):2854-2858,5.基金项目
青海省重大科技专项项目(2015-GX-A1A). （2015-GX-A1A）
