Modelling the crystal growth rate of KDP in the presence of organic admixtures

Yuko Enqvist, P. Seitavuopio, M. Louhi-Kultanen, J. Kallas

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Abstract

The crystal growth rate model in multi-component solutions was proposed on the basis of a two-step growth model, which employs the Maxwell-Stefan (MS) equations in the diffusion layer and a surface-reaction model of crystal growth, i.e. Burton, Cabrera, and Frank (BCF) surface diffusion and birth and spread (B+S) model, in the surface-integration layer, respectively. The model was applied to the growth of potassium dihydrogen phosphate (KDP) crystals in the ternary KDP-water-admixture (urea, ethanol and 1-propanol) systems. The model parameters were estimated using the experimental growth rate data. It was shown that the proposed model determines the growth rate and the interface concentration of each component successfully. Furthermore, surface analysis on the KDP (101) face growing from pure and admixture solutions was performed using ex situ atomic force microscopy (AFM).
Original languageEnglish
Title of host publicationProceedings of the 16th International Symposium on Industrial Crystallization
PublisherVDI Verlag GmbH
Pages157 - 162
Number of pages6
Publication statusPublished - 2005
MoE publication typeA4 Article in a conference publication
Event16th International Symposium on Industrial Crystallization - Dresden, Germany
Duration: 11 Sep 200514 Sep 2005

Publication series

SeriesVDI-Berichte
Number1901 I
ISSN0083-5560

Conference

Conference16th International Symposium on Industrial Crystallization
CountryGermany
CityDresden
Period11/09/0514/09/05

Fingerprint

admixtures
crystal growth
potassium phosphates
surface diffusion
ureas
surface reactions
ethyl alcohol
atomic force microscopy
water
crystals

Cite this

Enqvist, Y., Seitavuopio, P., Louhi-Kultanen, M., & Kallas, J. (2005). Modelling the crystal growth rate of KDP in the presence of organic admixtures. In Proceedings of the 16th International Symposium on Industrial Crystallization (pp. 157 - 162). [A-25] VDI Verlag GmbH. VDI-Berichte, No. 1901 I
Enqvist, Yuko ; Seitavuopio, P. ; Louhi-Kultanen, M. ; Kallas, J. / Modelling the crystal growth rate of KDP in the presence of organic admixtures. Proceedings of the 16th International Symposium on Industrial Crystallization. VDI Verlag GmbH, 2005. pp. 157 - 162 (VDI-Berichte; No. 1901 I).
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author = "Yuko Enqvist and P. Seitavuopio and M. Louhi-Kultanen and J. Kallas",
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Enqvist, Y, Seitavuopio, P, Louhi-Kultanen, M & Kallas, J 2005, Modelling the crystal growth rate of KDP in the presence of organic admixtures. in Proceedings of the 16th International Symposium on Industrial Crystallization., A-25, VDI Verlag GmbH, VDI-Berichte, no. 1901 I, pp. 157 - 162, 16th International Symposium on Industrial Crystallization, Dresden, Germany, 11/09/05.

Modelling the crystal growth rate of KDP in the presence of organic admixtures. / Enqvist, Yuko; Seitavuopio, P.; Louhi-Kultanen, M.; Kallas, J.

Proceedings of the 16th International Symposium on Industrial Crystallization. VDI Verlag GmbH, 2005. p. 157 - 162 A-25 (VDI-Berichte; No. 1901 I).

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

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AB - The crystal growth rate model in multi-component solutions was proposed on the basis of a two-step growth model, which employs the Maxwell-Stefan (MS) equations in the diffusion layer and a surface-reaction model of crystal growth, i.e. Burton, Cabrera, and Frank (BCF) surface diffusion and birth and spread (B+S) model, in the surface-integration layer, respectively. The model was applied to the growth of potassium dihydrogen phosphate (KDP) crystals in the ternary KDP-water-admixture (urea, ethanol and 1-propanol) systems. The model parameters were estimated using the experimental growth rate data. It was shown that the proposed model determines the growth rate and the interface concentration of each component successfully. Furthermore, surface analysis on the KDP (101) face growing from pure and admixture solutions was performed using ex situ atomic force microscopy (AFM).

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Enqvist Y, Seitavuopio P, Louhi-Kultanen M, Kallas J. Modelling the crystal growth rate of KDP in the presence of organic admixtures. In Proceedings of the 16th International Symposium on Industrial Crystallization. VDI Verlag GmbH. 2005. p. 157 - 162. A-25. (VDI-Berichte; No. 1901 I).