Growth kinetics of potassium chloride II—Water–ethanol systems

Lopes, Ana; Farelo, F.

doi:10.1016/j.jcrysgro.2006.01.017

Cited by 6 publications

(6 citation statements)

References 17 publications

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“…The results of the measurements using the fluidized bed technique are shown in figure 7. The obtained results by Lopes et al [3] can be explained through our measured solid liquid interfacial energy data at different ethanol ratios which is depicted in figure 6.…”

Section: Nucleation Parametersmentioning

confidence: 52%

“…In the case of KCl-Water-Ethanol system, it has been reported by Lopes et al [3] that the growth rate of KCl decreases with increasing the ethanol ratio in the solvent mixture. The results of the measurements using the fluidized bed technique are shown in figure 7.…”

Section: Nucleation Parametersmentioning

confidence: 93%

“…Growth and dissolution kinetics of potassium chloride in ethanol-water solutions which are obtained in a pilot-scale fluidized bed crystallizer have been studied by Lopes et al [3]. It has been reported that under the same driving force, the growth and dissolution rates of KCl decrease as the concentration of the organic cosolvent increases.…”

Section: Introductionmentioning

confidence: 99%

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Determination of nucleation parameters and the solid liquid interfacial energy of the KCl‐ethanol‐water system

Omar

Ulrich

2007

Cryst. Res. Technol.

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The kinetic parameters of homogeneous nucleation of KCl in different ethanol-water solvent mixtures were determined at 25°C from the experimental measurements of the width of the metastable zone at different cooling rates. The ethanol mass ratio in the ethanol water solvent mixture was varied from 0-0.9 and the metastable zone width for each solvent mixture was measured under the cooling rates of 10, 20 and 30 K/h. The influence of ethanol ratio on the activity coefficient was calculated. It was found that increasing the ethanol ratio in the solvent mixture leads to an increase in the mean molal activity coefficient. The experimental results obtained showed that the increase in the ethanol ratio in the solvent widens the metastable zone for the crystallization of KCl. Also it has inferred from the calculations based on the classical nucleation theory that increasing of the ethanol ratio in the solvent mixture resulted in an increase of the nucleation rate order, increase of the critical size of nuclei and increase of the solid liquid interfacial energy. It has been found that the solid liquid interfacial energy can be good correlated with inversely proportionality to the solubility.

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Section: Nucleation Parametersmentioning

confidence: 52%

Section: Nucleation Parametersmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

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Determination of nucleation parameters and the solid liquid interfacial energy of the KCl‐ethanol‐water system

Omar

Ulrich

2007

Cryst. Res. Technol.

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“…The relation between the surface properties and the growth rate is in agreement with previously published works [6][7][8]12], suggesting a growth rate inversely proportional to the overall lattice strain or defects of structure in the crystal. However, in the opposite direction other authors, like Lacmann and Tanneberger [21], Herden and Lacmann [10] and Lopes and Farelo [22,23], suggest that the observed growth rate behaviour is the result of surface healing during the first moments of growth. By this way, a different healing time for high and low supersaturations would be expected.…”

Section: Fluidized Bed Crystallizermentioning

confidence: 88%

Roughness effect on the overall growth rate of sucrose crystals

Ferreira

Faria

Rocha

2008

Journal of Crystal Growth

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“…Growth modeling It was shown that the growth rate of potassium chloride in aqueous ethanol mixtures decreased sharply as the percentage of ethanol increased [11]. Thus, it is hypothesized that crystal growth approaches zero at a certain critical ethanol composition for the similar sodium chloride compound.…”

Section: Model Developmentmentioning

confidence: 99%

A modeling approach for the non‐isothermal antisolvent crystallization of a solute with weak temperature dependent solubility

Widenski

Abbas

Romagnoli

2012

Cryst. Res. Technol.

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Antisolvent crystallization is a crystallization technique, which is normally operated isothermally. However, non-isothermal operation is on occasions performed for solutes that have temperature dependent solubility. This paper shows that it is beneficial to operate antisolvent crystallizers non-isothermally even for solutes whose solubility is weakly dependent on temperature. In this context, it demonstrates the joint control of particle mean size and size distribution coefficient of variation. A non-isothermal crystallization model-based framework is developed for the sodium chloride-ethanol-water system and validated for both isothermal and non-isothermal operations. This framework was used to systematically determine both the optimal antisolvent feed rate and temperature profiles that minimize the coefficient of variation while producing a specified mean crystal size.

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Growth kinetics of potassium chloride II—Water–ethanol systems

Cited by 6 publications

References 17 publications

Determination of nucleation parameters and the solid liquid interfacial energy of the KCl‐ethanol‐water system

Determination of nucleation parameters and the solid liquid interfacial energy of the KCl‐ethanol‐water system

Roughness effect on the overall growth rate of sucrose crystals

A modeling approach for the non‐isothermal antisolvent crystallization of a solute with weak temperature dependent solubility

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