Effect of Solution Stoichiometry on BaSO4 Crystallization from Turbidity Measurements and Modeling
Publication date
2024-01-10
Authors
Peters, V. F. D.
Baken, A.
Seepma, Sergěj Y.M.H.
Koskamp, Janou A.
Fernández-Martínez, A.
Driessche, A. E. S. van
Wolthers, Mariette
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Advisors
Supervisors
Document Type
Article
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Abstract
The impact of solution stoichiometry on the nucleation and growth of BaSO4 was studied by measuring solution transmittance and subsequent fitting to a crystallization model. Our results show that a large excess of either Ba2+ or SO42− ions inhibits both the nucleation and growth of BaSO4. However, for a small excess of Ba2+, 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 BaSO4 crystallization, and it could be worthwhile to examine other minerals similarly.
Keywords
General Chemical Engineering, General Chemistry, Industrial and Manufacturing Engineering
Citation
Peters, V F D, Baken, A, Seepma, S Y M H, Koskamp, J A, Fernández-Martínez, A, Driessche, A E S V & Wolthers, M 2024, 'Effect of Solution Stoichiometry on BaSO 4 Crystallization from Turbidity Measurements and Modeling', Industrial and Engineering Chemistry Research, vol. 63, no. 1, pp. 78-88. https://doi.org/10.1021/acs.iecr.3c03612