Determination of the crystal growth mechanism of KCl in ethanol–water system

Liszi, I.; Hasznosné-Nezdei, M; Lakatos, Béla G.; Sapundzhiev, Ts.; Popov, Roman

doi:10.1016/s0022-0248(98)01019-7

Cited by 8 publications

(13 citation statements)

References 9 publications

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“…It is thus possible to conclude that the order of the overall growth rates, nearly 1 in the pure system, is unchanged by the presence of the organic admixture, in accordance with the literature [4,6]. The overall rate coefficients k g (for g ¼ 1) and k d are summarized in Tables 1 and 2 …”

Section: Article In Presssupporting

confidence: 85%

“…Hence, the influence of organic molecules on the mechanisms of spontaneous nucleation and on the crystal habit of the precipitates thus obtained has been investigated by a number of researchers [1][2][3][4][5][6][7]. Comparatively, much less attention has been devoted to the effect of the cosolvents upon the crystallization mechanisms and growth kinetics of inorganic seed crystals [8].…”

Section: Introductionmentioning

confidence: 99%

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Growth kinetics of potassium chloride II—Water–ethanol systems

Lopes

Farelo

2006

Journal of Crystal Growth

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Section: Article In Presssupporting

confidence: 85%

Section: Introductionmentioning

confidence: 99%

Growth kinetics of potassium chloride II—Water–ethanol systems

Lopes

Farelo

2006

Journal of Crystal Growth

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“…For crystal growth of KCl in aqueous-ethanol solutions was also found that the growth rate was proportional to supersaturation of solution [13]. Authors [13] suppose that the growth rate of KCl crystals was controlled by diffusion. Thus, the first order of the growth process of KCl crystals is in a good agreement with published data.…”

Section: The Length Of the Induction Period Of The Crystallization Prmentioning

confidence: 99%

Spontaneous crystallization of potassium chloride from aqueous and aqueous‐ethanol solutions Part 1: Kinetics and mechanism of the crystallization process

Linnikov

2004

Cryst. Res. Technol.

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Kinetics of spontaneous crystallization of potassium chloride from aqueous and aqueous-ethanol solutions were studied. During the crystallization of the salt the electrical conductance and optical transmission of the supersaturated solutions were measured automatically. For monitoring of the total surface of growing potassium chloride crystals at the crystallization the turbidimetric method was used. The growth rate and activation energy of the crystals were determined. The crystal growth rate was proportional to supersaturation. When the volume fraction of ethanol in the solution increased from 0 to 25.76%, the activation energy of the growth process did not change and was about 60 kJ⋅mol -1. Aggregation of the crystals was found. The aggregation kinetics of the crystals may be described approximately by the famous Smoluchowski equation for coagulation of colloidal particles.

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“…They derived general expressions for the induction times with the aid of which the measurements were evaluated. This method, however, as it was pointed out by Liszi et al [11,12] is applicable also for evaluation of batch salting out experiments since the requirement of constant supersaturation in the induction period is satisfied in this case, too.…”

Section: Introductionmentioning

confidence: 98%

Kinetic Characteristics of Amino Acid Salt Crystallization in Methanol‐Water System

Hasznos-Nezdei

Liszi

Lakatos³

2003

Chem Eng & Technol

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Nucleation and growth mechanisms and kinetics of crystals of an amino acid salt were investigated in a methanol-water system by measuring and evaluating the induction time as a function of the supersaturation ratio and temperature in batch salting out crystallization experiments. Discrimination between the possible crystallization mechanisms, and estimation of the kinetic parameters were carried out using nonlinear parameter identification. The results concerning the growth mechanism obtained were checked additionally by measuring the induction time as a function of number density of seed crystals.

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Determination of the crystal growth mechanism of KCl in ethanol–water system

Cited by 8 publications

References 9 publications

Growth kinetics of potassium chloride II—Water–ethanol systems

Growth kinetics of potassium chloride II—Water–ethanol systems

Spontaneous crystallization of potassium chloride from aqueous and aqueous‐ethanol solutions Part 1: Kinetics and mechanism of the crystallization process

Kinetic Characteristics of Amino Acid Salt Crystallization in Methanol‐Water System

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