Investigation of Growth Mechanisms of Sodium Chlorate Crystals from Aqueous Solutions

Radiša, B. Z.; Mitrovic, Milan; Misailović, Branislava M.; Žekić, Andrijana

doi:10.1021/acs.iecr.6b02021

Cited by 4 publications

(14 citation statements)

References 48 publications

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“…It is shown that in the same experimental conditions, individual {100} sodium chlorate crystal faces grew at different rates. 9 Many crystal faces did not grow at all, which confirms the occurred stability of non-growing crystal faces at relatively high solution undercooling (to 13 °C). 27 The existence of zero growth rates probably depended on the proximity of solution supersaturation to critical supersaturation, which determined the dead zone width.…”

Section: Discussionmentioning

confidence: 90%

“…Histograms representing changes in GRD of sodium chlorate {100} faces in the experiments with the temperature increasing from 28.0 to 30.0 °C and with the temperature decreasing from 30.0 to 28.0 °C were published earlier. 9 …”

Section: Experimental Resultsmentioning

confidence: 99%

“…The data for sodium chlorate crystals, presented in Table 1 and Figure 3 , were obtained by analyzing the experimental results partially published previously. 9 Figure 3 shows the histograms of the obtained power n in experiments.…”

Section: Experimental Resultsmentioning

confidence: 99%

“…Some information about the growth mechanisms of sodium chlorate crystals was obtained by the analysis of ( R ,σ) dependence, 9 where R corresponds to the maximum of the normal distribution describing the crystal growth rate dispersion. Consequently, only the most probable behavior of the crystals was analyzed.…”

Section: Introductionmentioning

confidence: 99%

“… 1 − 8 , 25 The most probable behavior of many individual {100} crystal faces of sodium chlorate was recently analyzed. 9 …”

Section: Introductionmentioning

confidence: 99%

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Coexistence of Different Growth Mechanisms of Sodium Chlorate under the Same Experimental Conditions

et al. 2021

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Dependence of growth rates of {100} sodium chlorate crystal faces on solution supersaturation in the range of 0.44–1.32% was analyzed. It has been shown that the growth rate dispersion does not have a consequence only in the growth parameter differences predicted by specific crystal growth theory but that individual crystal faces may grow with different mechanisms under the same experimental conditions. The majority of the observed {100} sodium chlorate crystal faces grew in accordance with the power law R ∼ σ n , whereas approximately one-third of them grew in accordance with BCF or Chernov’s theories. Possible reasons for this as well as for the coexistence of crystal faces, which grew with different mechanisms under the same conditions, have been discussed.

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Section: Discussionmentioning

confidence: 90%

Section: Experimental Resultsmentioning

confidence: 99%

Section: Experimental Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“… 1 − 8 , 25 The most probable behavior of many individual {100} crystal faces of sodium chlorate was recently analyzed. 9 …”

Section: Introductionmentioning

confidence: 99%

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Coexistence of Different Growth Mechanisms of Sodium Chlorate under the Same Experimental Conditions

et al. 2021

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Influence of magnetic field on growth kinetics of sodium chlorate crystals from aqueous solution

Milojević,

Žekić,

Maksimović

et al. 2024

Journal of Crystal Growth

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Crystal Growth, Dissolution, and Agglomeration Kinetics of Sodium Chlorate

Fytopoulos

Kavousanakis

Gerven

et al. 2021

Ind. Eng. Chem. Res.

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The analysis, development, and implementation of novel complex industrial crystallization processes requires kinetic knowledge of not only crystal growth and nucleation but also breakage, dissolution, and agglomeration processes. In this work, the crystal growth, dissolution, and agglomeration kinetics of sodium chlorate (NaClO3) in aqueous solutions are estimated via seeded batch experiments with in-line particle size distribution measurements. Contrary to previous works, the growth/dissolution kinetics are expressed in terms of the fundamental driving force of crystallization calculated from the activity of supersaturated solutions. The activity-based driving force is roughly 2-fold higher than the commonly used representation, which assumes ideal solutions. By fitting experimental desupersaturation data to mechanistic and empirical growth models, we show that the growth of sodium chlorate is surface integration controlled and is best described by a two-dimensional birth and spread surface nucleation mechanism. The dissolution of sodium chlorate crystals is diffusion controlled and is ∼4 times faster than the growth at an equal initial driving force. Particle agglomeration is substantial in the early stages of crystallization experiments, likely due to a strong increase in the particle number due to initial breeding secondary nucleation upon seeding. The agglomeration rate constant increases with supersaturation and decreases at higher energy dissipation rate (by increased agitation) due to a strong decrease in the efficiency of interparticle collisions. Seeding with material of different sizes does not influence the agglomeration rate constant, although substantial amount of small particles was present in all seeding materials.

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Investigation of Growth Mechanisms of Sodium Chlorate Crystals from Aqueous Solutions

Cited by 4 publications

References 48 publications

Coexistence of Different Growth Mechanisms of Sodium Chlorate under the Same Experimental Conditions

Coexistence of Different Growth Mechanisms of Sodium Chlorate under the Same Experimental Conditions

Influence of magnetic field on growth kinetics of sodium chlorate crystals from aqueous solution

Crystal Growth, Dissolution, and Agglomeration Kinetics of Sodium Chlorate

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