Short communication, Note

https://doi.org/10.15255/KUI.2013.029

Crystallization Kinetics of Precipitating Calcium from Yellow Phosphorus Slag Lixivium

G.-B. Li ; Institute of Chemical Engineering, Kunming University of Science and Technology, Kunming, Yunnan, PR China
D. M. Luo ; Institute of Chemical Engineering, Kunming University of Science and Technology, Kunming, Yunnan, PR China
H.-P. Lai ; Institute of Chemical Engineering, Kunming University of Science and Technology, Kunming, Yunnan, PR China
H.-P. Li ; Institute of Chemical Engineering, Kunming University of Science and Technology, Kunming, Yunnan, PR China
Y. Su ; Institute of Chemical Engineering, Kunming University of Science and Technology, Kunming, Yunnan, PR China
M.-M. Du ; Faculty of foreign languages and cultures, Kunming University of Science and Technology, Kunming, Yunnan, PR China

Abstract

The crystallization dynamic parameters of calcium sulphate were determined in the course of the precipitation conversion process of calcium in lixivium. The crystallization dynamic equations of calcium sulphate were achieved by multiple linear regression. The study results indicate that CaSO₄ · 2 H₂O crystal nucleation-growth kinetics equation in nitric acid leaching liquid of yellow phosphorus slag at room temperature is expressed by B0 = 2.904 · 1011 · G0.83 · M_T 0.167.

Keywords

Crystallization kinetics; yellow phosphorus slag lixivium: calcium sulphate; precipitation

Hrčak ID:

129291

URI

https://hrcak.srce.hr/129291

Publication date:

4.11.2014.

Article data in other languages: croatian

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