通过浊度测量和建模研究溶液化学计量对硫酸钡结晶的影响。
Effect of Solution Stoichiometry on BaSO Crystallization from Turbidity Measurements and Modeling.
作者信息
Peters V F D, Baken A, Seepma S Y M H, Koskamp J A, Fernández-Martínez A, van Driessche A E S, Wolthers M
机构信息
Department of Earth Sciences, Utrecht University, Princetonlaan 8A, 3584 CB Utrecht, The Netherlands.
Université Grenoble Alpes, Université Savoie Mont Blanc, CNRS, IRD, IFSTTAR, ISTerre, F-38000 Grenoble, France.
出版信息
Ind Eng Chem Res. 2023 Dec 22;63(1):78-88. doi: 10.1021/acs.iecr.3c03612. eCollection 2024 Jan 10.
The impact of solution stoichiometry on the nucleation and growth of BaSO was studied by measuring solution transmittance and subsequent fitting to a crystallization model. Our results show that a large excess of either Ba or SO ions inhibits both the nucleation and growth of BaSO. However, for a small excess of Ba, the growth is enhanced. The dependence of nucleation and growth rates on supersaturation and solution stoichiometry was captured by a semiempirical rate model. Hence, the solution stoichiometry is a highly relevant parameter while studying all aspects of BaSO crystallization, and it could be worthwhile to examine other minerals similarly.
通过测量溶液透光率并随后拟合结晶模型，研究了溶液化学计量比对硫酸钡成核和生长的影响。我们的结果表明，钡离子或硫酸根离子的大量过量都会抑制硫酸钡的成核和生长。然而，对于少量过量的钡，生长会增强。成核和生长速率对过饱和度和溶液化学计量比的依赖性由一个半经验速率模型来描述。因此，在研究硫酸钡结晶的各个方面时，溶液化学计量比是一个高度相关的参数，类似地研究其他矿物可能是值得的。
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