Effect of Solution Stoichiometry on BaSO4 Crystallization from Turbidity Measurements and Modeling

Peters, Vincent F. D.; Baken, A.; Seepma, S. Y. M. H.; Koskamp, J. A.; Fernández Martínez, Alejandro; Van Driessche, Alexander Edgard Suzanne; Wolthers, M.

doi:10.1021/acs.iecr.3c03612

peters-et-al-2023.pdf (3.366Mb)

Identificadores

URI: https://hdl.handle.net/10481/91249

DOI: 10.1021/acs.iecr.3c03612

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Editorial

American Chemical Society

Fecha

2023-12-22

Referencia bibliográfica

V. F. D. Peters, A. Baken, S. Y. M. H. Seepma, J. A. Koskamp, A. Fernández-Martínez, A. E. S. van Driessche, and M. Wolthers Industrial & Engineering Chemistry Research 2024 63 (1), 78-88 DOI: 10.1021/acs.iecr.3c03612

Patrocinador

European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (grant agreement no. 819588); Junta de Andalucía (PROYEXCEL_00771)

Resumen

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 SO4 2− 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.

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