The kinetic of crystallization of group II fluoride salts in aqueous solution

Yoshikawa, Yuzo; Nancollas, G.H.; Barone, J. P.

doi:10.1016/0022-0248(84)90342-7

Cited by 13 publications

(5 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This definition has been used in the evaluation of the potassium chloride crystal growth rate . The σ defined in eq is also known as the growth affinity in some literature. , A per unit ion basis has also been seen in some literature to define the supersaturation ratio S ′ as in , where ν + and ν – are stoichiometric coefficients of the positive and negative species. Another supersaturation expression includes the ln S ≈ S – 1 approximation, which is only valid at low supersaturation.…”

Section: Chemical Equilibrium Modelingmentioning

confidence: 99%

See 1 more Smart Citation

Gypsum Crystallization during Phosphoric Acid Production: Modeling and Experiments Using the Mixed-Solvent-Electrolyte Thermodynamic Model

Peng

Zhu

Braatz

et al. 2015

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

The size distributions of calcium sulfate dihydrate crystals formed during the industrial phosphoric acid production process are critical to the acid filtration efficiency. In this work, a thermodynamically consistent definition of supersaturation is derived and modeled using the mixed-solvent-electrolyte framework in OLI software for gypsum in an acid mixture. Continuous reactive crystallization experiments are carried out to estimate the gypsum growth and nucleation kinetics at different temperatures. A population balance model is implemented using the method of characteristics and integrated with the thermodynamic model platform to accurately simulate the dynamic propagation of the solution concentration and particle size distribution. The experimentally fitted kinetic parameters are verified through a comparison with the predicted crystal size distribution (CSD) and supersaturation. The comparison shows a good agreement between the predicted and measured CSD and supersaturation at a temperature range from 25 to 60°C.

show abstract

Section: Chemical Equilibrium Modelingmentioning

confidence: 99%

“…20 The σ defined in eq11 is also known as the growth af f inity in some literature. 21,22 A per unit ion basis has also been seen in some literature to define the supersaturation ratio S′ as in 23,24…”

Section: ■ Introductionmentioning

confidence: 99%

Gypsum Crystallization during Phosphoric Acid Production: Modeling and Experiments Using the Mixed-Solvent-Electrolyte Thermodynamic Model

Peng

Zhu

Braatz

et al. 2015

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

show abstract

“…Therefore, further regulation is still needed in synthesis to improve superhydrophobic properties. So far, numerous methods were used to synthesize the BaF 2 Crystals in previous reports, such as chemical precipitation, ame process, microemulsion, hydrothermal method, liquid-solid-solution method, thermal decomposition of tri uoroacetates, and so on [13][14][15][16][17][18][19][20][21] . Hu and Zang et al reported that the BaF 2 materials synthesized successfully by the CTAB/2-octanol/water microemulsion method [16] .…”

Section: Introductionmentioning

confidence: 99%

Formation of BaF2 Microcrystals as Superhydrophobic Materials via a Hydrothermal Method

et al. 2021

Preprint

View full text Add to dashboard Cite

Controllable BaF2 microcrystals with super-hydrophobic property have been successfully synthesized via a facile hydrothermal process. XRD, SEM and CA are used to study the structure, morphology and the hydrophobic properties of the BaF2 materials. The effects of reaction time, surfactants and pH are also detailed investigated in order to get a series of accurate reaction conditions for the preparation of BaF2 material. The results show that uniform BaF2 tetragonal phase structure was fabricated when the reaction temperature was controlled at 180 oC for 24 h. In addition, the BaF2 materials showed excellent super-hydrophobic properties. The results about the influence of time and substrates exhibit that the sample can maintain the stable super-hydrophobic property for over 10 days. As a promising super hydrophobic materials, the studies of BaF2 reported in this paper is quite practical and it has a certain guiding meaning for the future study about super hydrophobic materials.

show abstract

Section: Introductionmentioning

confidence: 99%

Formation of BaF2 microcrystals as superhydrophobic materials via a hydrothermal method

et al. 2021

Chem. Pap.

View full text Add to dashboard Cite

Controllable BaF 2 microcrystals with super-hydrophobic property have been successfully synthesized via a facile hydrothermal process. XRD, SEM and CA are used to study the structure, morphology and the hydrophobic properties of the BaF 2 materials. The effects of reaction time, surfactants and pH are also detailed investigated in order to get a series of accurate reaction conditions for the preparation of BaF 2 material. The results show that uniform BaF 2 tetragonal phase structure was fabricated when the reaction temperature was controlled at 180 o C for 24 h. In addition, the BaF 2 materials showed excellent super-hydrophobic properties. The results about the in uence of time and substrates exhibit that the sample can maintain the stable super-hydrophobic property for over 10 days. As a promising super hydrophobic materials, the studies of BaF 2 reported in this paper is quite practical and it has a certain guiding meaning for the future study about super hydrophobic materials.

show abstract

The kinetic of crystallization of group II fluoride salts in aqueous solution

Cited by 13 publications

References 10 publications

Gypsum Crystallization during Phosphoric Acid Production: Modeling and Experiments Using the Mixed-Solvent-Electrolyte Thermodynamic Model

Gypsum Crystallization during Phosphoric Acid Production: Modeling and Experiments Using the Mixed-Solvent-Electrolyte Thermodynamic Model

Formation of BaF2 Microcrystals as Superhydrophobic Materials via a Hydrothermal Method

Formation of BaF2 microcrystals as superhydrophobic materials via a hydrothermal method

Contact Info

Product

Resources

About