J. Palmer, B. Ekberg, Larox Corporation, D. Safonov, Saint-Petersburg State Mining Institute, A. Häkkinen, A. Kraslawski, Lappeenranta University of Technology; Jason.Palmer@larox.com; safonov.dmitry@mail.ru; Antti.Hakkinen@lut.fi

The results of this study and those of previous studies demonstrate the limitations of small scale equipment in predicting full scale filter performance, however if these limitations are well understood very small scale equipment can be used to predict filtration performance with significantly better accuracy than a purely theoretical approach. As with any experimental campaign a systematic approach to planning the campaign will improve the reliability of the data and reduce the time and cost of conducting that experiment.

1. ASTM, 2007. Standard test methods for fineness of hydraulic cement by air permeability apparatus (American Society for Testing and Materials: West Conshohocken).
2. Chmelar J. 2006. Size Reduction and Specification of Granular Petrol Coke With Respect to Chemical and Physical Properties, Doctoral thesis (Norwegian University of Science and Technology, Trondheim).
3. Grace H. P. 1953. Resistance and compressibility of filter cakes, Chemical Engineering Progress, 49(6): 303-318.
4. Häkkinen A., Püllanen K., Reinikainen S., Louhi-Kultanen M., Nystrom L., 2008. Prediction of filtration characteristics by multivariate data analysis. Filtration, 8(2). p. 144-153.
5. Osborne D. G., 1981. Vacuum Filtration – Part I, in Solid-Liquid Separation, 2nd Edition (ed: L Svarovsky), p 349 (Butterworth & Co Ltd: London).

6. Potgieter J. H. and Strydom C. A. 1996. An investigation into the correlation between different surface area determination techniques applied to various limestone-related compounds. Cement and Concrete Research, Vol. 26, No. 11, p.1613-1617.
7. Savolainen M., Häkkinen A., Ekberg B., Hindström R. and Kallas J. 2009. Development of testing procedure for ceramic disc filters, in Proceedings Physical Separation ‘09 (Minerals Engineering International: Falmouth).
8. Tiller F. M., 1953. The role of porosity in filtration. Numerical methods for constant rate and constant pressure filtration based on Kozeny’s law, Chemical Engineering Progress, 49(9): 467-479.
9. Wakeman, R. J. and Tarleton, E. S., 2005. Solid/liquid separation: principles of industrial filtration, Elsevier, Oxford, UK.