摘要
研究了锦屏磷矿在盐酸中的溶解动力学．发现温度、氢离子浓度是影响溶解反应速度的主要因素．矿粉粒度、添加表面活性剂、搅拌速度、都对溶解反应速度产生较大影响，当溶解率小于０．５时，属于化学反应控制过程，测得溶解反应频率因子ｋ０＝４．４９，活化能Ｅ＝３６． ８７ｋＪ· ｍｏｌ～（－１）．
The dissolution kinetics of Jinping phosphate ore was studied in hydrochloric acid (0.1 - 1. 0 mol·L^(-1)). It was found that the hydrogen ions concentration and temperature are controlling factors. The effects of the size of ore particles, stirring intensity and surface active agent was also larger. While X<0.5, The dissolution process is a chemical control process. The frequency factor k0=4.49, and the activation energy E=36.8 kJ·mol^(-1).
出处
《化学反应工程与工艺》
CAS
CSCD
北大核心
2000年第4期389-395,共7页
Chemical Reaction Engineering and Technology
基金
山东省科技攻关项目资助(项目号:991122703)
