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Experimental Kinetic Analysis of Potassium Extraction from Ultrapotassic Syenite Using NaCl-CaCl2 Salt Mixture.
ACS Omega ( IF 3.7 ) Pub Date : 2020-06-26 , DOI: 10.1021/acsomega.0c00549 Pegah Haseli 1 , Peter Majewski 2 , Farid Christo 3 , Mark Raven 4 , Steve Klose 5 , Frank Bruno 2
ACS Omega ( IF 3.7 ) Pub Date : 2020-06-26 , DOI: 10.1021/acsomega.0c00549 Pegah Haseli 1 , Peter Majewski 2 , Farid Christo 3 , Mark Raven 4 , Steve Klose 5 , Frank Bruno 2
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This kinetic experimental analysis reports on the application of a eutectic NaCl–CaCl2 salt system for the extraction of potassium from ultrapotassic microsyenite. The reaction parameters, time, temperature, salt composition, and salt to ore ratio, were systematically analyzed. It was found that a salt mixture increases the potassium cation extraction in comparison with using either pure NaCl or pure CaCl2. It was also found that adding CaCl2 into pure NaCl has a considerably stronger effect on increasing the potassium recovery than adding NaCl to pure CaCl2. The salt as a melting agent offers a reduction in the reaction temperature due to its lower melting temperature when compared to pure salts (NaCl or CaCl2). Approximately 70% of K+ in the deposit was extracted at 650 °C. Different characteristic methods have been used to understand the reaction mechanism of the salt mixture and ore, as well as to qualify and quantify the end product mineral phases.
中文翻译：
使用NaCl-CaCl2盐混合物从超钾正长岩中萃取钾的实验动力学分析。
动力学实验分析报告了共晶NaCl–CaCl 2盐系统在超钾微砂岩中提取钾的应用。系统分析了反应参数，时间，温度，盐组成和盐矿比。发现与使用纯NaCl或纯CaCl 2相比，盐混合物增加了钾阳离子的提取。还发现，与向纯CaCl 2中添加NaCl相比，向纯NaCl中添加CaCl 2对提高钾的回收率具有明显更强的作用。与纯盐（NaCl或CaCl 2相比），由于盐的熔融温度较低，因此作为熔融剂的盐可降低反应温度）。在650°C下提取沉积物中约70％的K +。已经使用了不同的特征方法来理解盐混合物和矿石的反应机理，以及鉴定和量化最终产品的矿物相。
更新日期：2020-07-14
中文翻译：
使用NaCl-CaCl2盐混合物从超钾正长岩中萃取钾的实验动力学分析。
动力学实验分析报告了共晶NaCl–CaCl 2盐系统在超钾微砂岩中提取钾的应用。系统分析了反应参数，时间，温度，盐组成和盐矿比。发现与使用纯NaCl或纯CaCl 2相比，盐混合物增加了钾阳离子的提取。还发现，与向纯CaCl 2中添加NaCl相比，向纯NaCl中添加CaCl 2对提高钾的回收率具有明显更强的作用。与纯盐（NaCl或CaCl 2相比），由于盐的熔融温度较低，因此作为熔融剂的盐可降低反应温度）。在650°C下提取沉积物中约70％的K +。已经使用了不同的特征方法来理解盐混合物和矿石的反应机理，以及鉴定和量化最终产品的矿物相。
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