The effect of additives on nucleation: A low cost automated apparatus

Beckmann, Wolfgang; Behrens, M.; Lacmann, R.; Rolfs, J.; Tanneberger, U.

doi:10.1016/s0022-0248(08)80081-4

Cited by 8 publications

(5 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Through differentiation with respect to the mole number N, the chemical potential of the supersaturation results in: (11) Compared the the original paper, this equation has been corrected [9]. This equation implies that the equilibrium concentration of an imperfect crystal formed by attrition is higher than for a large crystal.…”

Section: Growth Rate Dispersionmentioning

confidence: 99%

Kinetics of Nucleation and Crystal Growth

Lacmann

Herden

Mayer³

1999

Chem. Eng. Technol.

Self Cite

View full text Add to dashboard Cite

This paper deals with homogeneous and heterogeneous primary nucleation and the atomistic model of heterogeneous primary and secondary nucleation. Three aspects of crystal growth mechanisms will be taken into account: growth by two-dimensional nucleation, the so-called birth and spread model, spiral growth without and with consideration of the influence of diffusion, and finally adhesive growth. An equation for the estimation of the growth rate of imperfect crystals including dislocations, published by Mersmann [1], is discussed. The influence of additives on nucleation and crystal growth, respectively, will be exemplarily explained for several model systems. The effect of growth rate dispersion (GRD) is described. Therefore, some experimental results concerning growth rates and different ways to influence growth are represented and discussed. Furthermore, a model explaining the effect of GRD is represented.

show abstract

Section: Growth Rate Dispersionmentioning

confidence: 99%

Kinetics of Nucleation and Crystal Growth

Lacmann

Herden

Mayer³

1999

Chem. Eng. Technol.

Self Cite

View full text Add to dashboard Cite

show abstract

“…Strong nucleation-inhibiting additives show values for k up to 6 [4,7,8,37]. For a linear growth law, the doubling of DT already occurs at a reduction of the growth rate down to 25 %.…”

Section: Influence Of Additivesmentioning

confidence: 99%

About the Metastable Zone Width of Primary and Secondary Nucleation

Herden

Mayer

Kuch

et al. 2001

Chem. Eng. Technol.

Self Cite

View full text Add to dashboard Cite

“…The reason was that this inorganic salt has been commonly used for many years and therefore extensive data concerning its crystallization are available in the literature. Among others one can mention publications concerning the impact of additives [ 39 , 40 , 41 , 42 , 43 , 44 ], surface charge [ 41 ], solvents [ 45 , 46 , 47 , 48 ] or pH [ 49 ]. Moreover, the nucleation process of KCl is highly exothermic, which therefore can be detected by precise temperature measurements.…”

Section: Introductionmentioning

confidence: 99%

Upper Critical Solution Temperature Polymer Phase Transition as a Tool for the Control of Inorganic Salt Crystallization Process

Lemanowicz

Munoz²,

Mielańczyk

et al. 2021

Materials

View full text Add to dashboard Cite

In this paper, the experimental research concerning the impact of the hydrophilic-hydrophobic transition of a polymer exhibiting the Upper Critical Solution Temperature (UCST) onto the crystallization process of inorganic salt is presented. A hypothesis was postulated that under favorable process conditions the sudden change of macromolecules properties and the resulting appearance of insoluble particles will induce the nucleation process of the salt. Since the transition point parameters may be precisely designed, the described mechanism would eliminate the stochastic nature of the crystallization process. Although performed experiments proved that the postulated process mechanism was incorrect, the presence of macromolecules had a significant impact on the crystallization course. The stochastic nature of the process was not eliminated; nevertheless, it seems that a specific point of nucleation was created which was independent of the cloud point temperature (TCP) of the polymer. Moreover, the surface morphology of crystals was changed.

show abstract

The effect of additives on nucleation: A low cost automated apparatus

Cited by 8 publications

References 9 publications

Kinetics of Nucleation and Crystal Growth

Kinetics of Nucleation and Crystal Growth

About the Metastable Zone Width of Primary and Secondary Nucleation

Upper Critical Solution Temperature Polymer Phase Transition as a Tool for the Control of Inorganic Salt Crystallization Process

Contact Info

Product

Resources

About