| 软钾镁矾溶解动力学Ⅲ∶NaCl对软钾镁矾溶解转化影响的研究 |
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| 引用本文： | 宋粤华,夏树屏.软钾镁矾溶解动力学Ⅲ∶NaCl对软钾镁矾溶解转化影响的研究[J].盐湖研究,1995(3). |
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| 作者姓名： | 宋粤华 夏树屏 |
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| 作者单位： | 中国科学院青海盐湖研究所 |
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| 摘 要： | 本文利用合成纯软钾镁矾晶体，研究了不同浓度ＮａＣｌ（１．０２８、３．０５４％）溶液、不同温度（２５、５０、７５℃）对软钾镁矾溶解转化过程的影响。并且采用龙格—库塔微分数值法拟合求解其溶解过程和结晶过程动力学方程。结果表明在一定浓度ＮａＣｌ溶液中软钾镁矾是不相称溶解。ＭｇＳＯ４先于Ｋ２ＳＯ４溶解进入溶液中，温度越高，溶解速度越快，Ｋ２ＳＯ４结晶速度也越快，ＮａＣｌ的盐析作用越明显，软钾镁矾溶解达到Ｋ２ＳＯ４过饱和并析出所需时间缩短，溶解受扩散和表面反应控制，Ｋ２ＳＯ４结晶受扩散控制。
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| 关 键 词： | 软钾镁矾，硫酸钾，氯化钠，转化，动力学 |
Study on the Dissolution Dynamica of Schoenite Part Ⅲ: The effects of NaCl to the dissolution-transformation of schoenite |
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| Song Yuehu,Xia Shuping.Study on the Dissolution Dynamica of Schoenite Part Ⅲ: The effects of NaCl to the dissolution-transformation of schoenite[J].Journal of Salt Lake Research,1995(3). |
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| Authors: | Song Yuehu Xia Shuping |
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| Abstract: | The effects of concentrations of NaCI (1, 028, 3. 054%) solutions on the dissolutiontransformation processes of schoenite at different temperature (25, 50, 75℃) were studied. The parameters of kimetic equations of the dissolution processes of K2SO4·MgSO4·6H2O and the crystallization processes parameters of K2SO4 have been stimulated by computer and the dissolution-transformation mechanics of picromerite has been given. |
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| Keywords: | picromerite transformation kimetic |
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