摘要
研究了纯三水铝石在氢氧化钠溶液中的溶出过程动力学。通过温度和浓度对溶出速率的影响,推导出溶出过程的动力学漠型。整个溶出过程系一级不可逆化学反虚控制。用微分法和积分法计算出动力学参数,其表观反应活化能为76.85kJ/molAl(OH)_3。
The digestion process of synthetic gibbsite in sodium hydroxide solu- tion was investigated by isothermal calorimetry.By analyzing the quan- titative effects of temperature and concentration on digestion rate,a math- ematical model for digestion process was derived.The experimental re- sults showed that the rate-determining step was a chemical reaction ra- ther than diffusion.A first-order dependence on sodium hydroxide was observed.The kinetic parameters were computed.Having combined the ...
出处
《有色金属》
CSCD
1991年第4期52-55,64,共5页
Nonferrous Metals
