Prediction of aggregation behavior of submicron-sized particles of praseodymium-doped zirconium silicate in aqueous suspension by population balance model--颗粒学报PARTICUOLOGY

Liang, L., Wang, Y., & Pan, Z. (2016). Prediction of aggregation behavior of submicron-sized particles of praseodymium-doped zirconium silicate in aqueous suspension by population balance model. Particuology, 25, 83-92. https://doi.org/10.1016/j.partic.2015.02.009

Prediction of aggregation behavior of submicron-sized particles of praseodymium-doped zirconium silicate in aqueous suspension by population balance model

Libin Liang ^a, Yanmin Wang ^a *, Zhidong Pan ^a^b

a School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China
b Guangdong KITO Ceramics Co., Ltd., Foshan 528031, China

10.1016/j.partic.2015.02.009

Volume 25, April 2016, Pages 83-92

Received 19 December 2014, Revised 9 February 2015, Accepted 27 February 2015, Available online 10 August 2015, Version of Record 18 February 2016.

E-mail: wangym@scut.edu.cn

Highlights

• A modified population balance model was proposed to describe the aggregation behavior of particles.

• Aggregation of submicron-sized Pr–ZrSiO₄ in aqueous suspension was predicted by the model.

• Aggregation of particles in the presence of SDBS or KCl was experimentally investigated.

• Mechanisms in suspensions at different SDBS concentrations and collision frequencies were given.

• The simulated data obtained by the model agreed with the experimental results.

Abstract

The aggregation behavior of submicron-sized particles of praseodymium-doped zirconium silicate, a ceramic pigment, in aqueous suspension was predicted by a modified population balance model. In the model, the collision frequencies were selected to describe evolution of the particle size distribution of the suspension. The collision efficiency was estimated as a function of interaction potential between particles based on Derjaguin–Landau–Verwey–Overbeek theory. The population balance model was modified to predict the stable state of the aggregation by introducing the volume mean size of aggregate to stability ratio. In addition, aggregation of the particles in aqueous suspension in the presence of sodium dodecyl benzene sulfonate or potassium chloride was experimentally investigated. The predicted data (i.e., the final aggregate size, aggregation rate, and particle size distribution) were similar to the experimental results.

Graphical abstract

Keywords

Population balance model; Aggregation; Surface forces; Colloidal suspensions; Praseodymium-doped zirconium silicate

文章导读