2MgO·2B_2O_3·MgCl_2·14H_2O溶解及相转化的动力学机制研究  

Study on the Kinetic Mechanisms of Dissolution and Transformation of 2MgO·2B 2O 3·MgCl 2·14H 2O

作　　者：刘志宏[1,2] 胡满成[1,2] 梁宏斌[1,2] 夏树屏 高世扬[1,2] 

机构地区：[1]陕西师范大学化学系 [2]中国科学院盐湖研究所二部

出　　处：《西北大学学报（自然科学版）》1998年第6期509-512,共4页Journal of Northwest University（Natural Science Edition）

摘　　要：研究了温度、搅拌速度对２ＭｇＯ·２Ｂ２Ｏ３·ＭｇＣｌ２·１４Ｈ２Ｏ在水中溶解及相转化动力学的影响。给出了溶解和转化结晶动力学方程；根据Ａｒｒｈｅｎｉｕｓ公式，估算了溶解和结晶反应的活化能。依据反应级数、活化能及搅拌效应，确定了该复盐的溶解和转化结晶反应动力学机制。The influences of temperature and stirring rate on the kinetics of dissolution and transformation of 2MgO·2B 2O 3·MgCl 2·14H 2O in water have been studied.the experimental datas have been fitted, and then, the kinetic equations of dissolution and crystallization have been obtained. The activation energy of dissolution and crystallization has been calculated from Arrhenius formula.The kinetic mechanisms of dissolution and crystallization reactions have been confirmed according to order reaction, activation energy and effect of stirring.

关 键 词：氯柱硼镁石 溶解 相转化 动力学机制 复盐 盐湖 

分 类 号：TS352[轻工技术与工程] O611.66[理学—无机化学]