钙芒硝岩盐水溶特性的实验研究  

Experimental study on dissolution characteristic of glauberite rock salt

作　　者：徐素国[1] 梁卫国[1] 赵阳升[1,2] 

机构地区：[1]太原理工大学采矿工艺研究所 [2]中国矿业大学能源科学与工程学院,江苏徐州221000

出　　处：《辽宁工程技术大学学报（自然科学版）》2005年第1期5-7,共3页Journal of Liaoning Technical University (Natural Science)

基　　金：国家自然科学基金资助项目(50304011)

摘　　要：在常温和 30℃时,对其在水中的溶解特性进行了研究,发现在室温静溶时试件很快破碎,溶液浓度上升比较快;在 30℃水中不易破碎,原因在于 CaSO4在水中溶解度小,温度升高其溶解度反而降低,溶解出来的 CaSO4容易附着在矿物表面,阻止矿物的溶解。同时得出了钙芒硝在水中溶解特性曲线以及溶解速率和溶解速度方程,以此来指导钙芒硝岩盐矿和其他可溶性矿物的水溶开采。The dissolution characteristic of glauberite in water have been studied in room condition and at 30°C, the experimental results have showed that when the glauberite still dissolve at room temperature, it break up in several days; but in water at 30°C water it doesn't break for a long time, we think it is the effect of CaSO4, solubility of CaSO4 is small in water, the higher temperature of the water the smaller solubility of CaSO4, and at the same time the dissolved CaSO4 can be adsorbed on the surface of the mineral to stop it dissolving. And the characteristic curve of solution and equation of dissolution rate are established. The research results can give a guidance for the mining glauberite and other minerals.

关 键 词：钙芒硝 岩盐 水溶采矿 溶解特性 

分 类 号：TD87[矿业工程—非金属矿开采]