Mathematical Model and Equations of Wash Water Recycling in the Preparation of Layered Double Hydroxides

Article Preview

Abstract:

A wash water recycling method is used in the preparation of layered double hydroxides (LDHs). Based on the multiple-low-amount principle, a mathematical model and the equations of the washing process have been formulated. The experimental data are very similar to the calculated values, which means that the model and equations can be used to design and optimize the practical process of wash water recycling. The recycling of wash water in this way results in a water-saving of above 80%.

You might also be interested in these eBooks

Info:

Periodical:

Advanced Materials Research (Volumes 455-456)

Pages:

1239-1243

Citation:

Online since:

January 2012

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2012 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] F. Cavani, F. Trifirò, and A. Vaccari, Hydrotalcite-type anionic clays: Preparation, properties and applications, Catalysis Today, vol. 11, pp.173-301, (1991).

DOI: 10.1016/0920-5861(91)80068-k

Google Scholar

[2] D. G. Evans and R. C. T. Slade, Structural aspects of layered double hydroxides, Structure and Bonding, vol. 119, pp.1-87, (2006).

DOI: 10.1007/430_005

Google Scholar

[3] L. M. van der Ven, M. L. van Gernert, L. F. Batenburg, J. J. Keern, L. H. Gielgens, T. P. M. Koster, and H. R. Fischer, On the action of hydrotalcite-like clay materials as stabilizers in polyvinylchloride, Applied Clay Science, vol. 17, pp.25-34, (2000).

DOI: 10.1016/s0169-1317(00)00002-8

Google Scholar

[4] F. Li and X. Duan, Applications of layered double hydroxides, Structure and Bonding, vol. 119, p.193–223, (2006).

Google Scholar

[5] X. Jia, D. Li, D. G. Evans, and Y. Lin, Optimization of the wash process and wash water recycling in the preparation of MgZnAl-CO3 layered double hydroxides, Particuology, vol. 8, pp.231-233, (2010).

DOI: 10.1016/j.partic.2010.03.005

Google Scholar

[6] S. Guo, D. Li, W. Zhang, M. Pu, D. G. Evans, and X. Duan, Preparation of an anionic azo pigment-pillared layered double hydroxide and the thermo- and photostability of the resulting intercalated material, Journal of Solid State Chemistry, vol. 177, pp.4597-4604, (2004).

DOI: 10.1016/j.jssc.2004.09.028

Google Scholar

[7] D. G. Evans and X. Duan, Preparation of layered double hydroxides and their applications as additives in polymers, as precursors to magnetic materials and in biology and medicine, Chemical Communications, pp.485-496, (2006).

DOI: 10.1039/b510313b

Google Scholar

[8] A. Rushton, A. S. Ward, and R. G. Holdich, Solid-Liquid Filtration and Separation Technology, Wiley-VCH: Weinheim press, (2000).

Google Scholar