Abstract
A great variety of industrial products is based on particulate materials. Behavior and performance of such products depend upon particle size and shape in the base materials, in addition to chemical and structural characteristics. An overview of the major production and handling processes of particulate materials as well as the basic characteristics for their design, monitoring and control is presented in this book. It is meant to facilitate easy comparison and good choices of production and handling processes and of equipment. Topics for particulate production comprise size enlargement – crystallization, precipitation, granulation and extrusion – as well as size reduction, viz. comminution, atomization and emulsification. In the chapters on handling, mixing and segregation, filtration and sedimentation, flotation, classification, storage and transport are discussed. The quality of batches of base materials and products is assessed through measurements in samples. Adequate care of the sampling process to obtain representative samples is required, especially in cases where the batches show segregation, i.e. when the composition is different at different locations in the batch. Then, deviations in non-representative samples may be substantial. The quality of products is often described in terms of PSD parameters in addition to descriptors that are more closely related to behavior. Unfortunately, the choice of PSD parameters is often made without good reasoning, causing the chosen parameters to be sub-optimal. Therefore, suggestions are given for optimum choices. The behavior of bulk powders and concentrated dispersions depends in addition to particle characteristics upon the degree of particle packing and the inter-particle forces, and for dispersions also upon the particulate concentration, the surface type and the zeta-potential. Optimum rheological behavior of such concentrated systems, powders as well as liquid dispersions, is of prime importance, during processing as well as for product quality. Some examples are presented for the parameters that have an empirical relationship to practical situations. The choice of PSD parameters that are typically used for control of processes is easier than that for product quality, since usually only adequate repeatability and instrument robustness are important for good control. This chapter gives an introduction to the general background and the challenges of selecting adequate processes and to the relevant particulate parameters.
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Alderliesten, M.: Mean particle diameters. Part IV: Empirical selection of the proper type of mean particle diameter describing a product or material property. Part. Part. Syst. Charact. 21, 179–196 (2004)
Alderliesten, M.: Mean particle diameters. Part V: Theoretical derivation of the proper type of mean particle diameter describing a product or process property. Part. Part Syst. Charact. 22, 233–245 (2005)
Alderliesten, M.: Mean particle diameters. From statistical definition to physical understanding. J. Biopharm. Stat. 15, 295–325 (2005)
Estes, K.A., Mudawar, I.: Correlation of Sauter mean diameter and critical heat flux for spray cooling of small surfaces. Int. J. Heat Mass Transf. 38, 2985–2996 (1995)
Föster, H.: Properties of flammable mists; Chap. 5 in [7] (2004)
Geldart, D. (ed.): Gas Fluidization and Technology. Wiley, New York (1986)
Hattwig, M., Steen, H.: Handbook of Explosion Prevention and Protection. Wiley-VCH, Weinheim (2008)
ISO 9276-1: Representation of results of particle size analysis – graphical representation. International Organization for Standardization (1998/2004)
ISO 9276-2: Representation of results af particle size analysis – calculation of average particle sizes/diameters and moments from particle size distributions. International Organization for Standardization (2014)
ISO 9276-6: Representation of results of particle size analysis – particle shape and morphology. International Organization for Standardization (2008)
Lemkowitz, S.M., Pasman, H.J.: Chap. 4, Assessment and control of fire and explosion hazards and risks of particulates; in [13] (2014)
Merkus, H.G.: Particle Size Measurements – Fundamentals, Practice, Quality. Particle Technology Series, vol. 17. Springer, New York (2009)
Merkus, H.G., Meesters, G.M.H. (eds.): Particulate Products – Tailoring Properties for Optimal Performance. Particle Technology Series, vol. 19. Springer, New York (2014)
Mohos, F.A.: Confectionery and Chocolate Engineering: Principles and Applications. Wiley-Blackwell, Ames (2010)
Mugele, R.A., Evans, H.D.: Droplet size distribution in sprays. Ind. Eng. Chem. 43, 1317–1324 (1951)
Rhodes, M.: Introduction to Particle Technology. Wiley, Chichester (1998)
Richardson, J.F., Harker, J.H., Backhurst, J.R.: Coulson and Richardson’s Chemical Engineering. Particle Technology and Separation Processes, vol. 2, 5th edn. Butterworth & Heinemann, Oxford (2002)
Rumpf, H.: Mechanische Verfahrenstechnik. Carl Hanser Verlag, Munich (1975)
Rumpf, H.: Particle Technology. Particle Technology Series, vol. 1. Chapman & Hall (English translation of [18] by Dr. F.A. Bull) (1990)
Sauter, J.: Die Grössenbestimmung der im Gemischnebel von Verbrennungskraft-maschinen vorhandenen Brennstoffteilchen. Forschungsarbeiten auf dem Gebiete des Ingenieurswesens, Heft. 279. VDI-Verlag, Berlin (1926)
Sauter, J.: Untersuchung der von Spritzvergasern gelieferten Zerstäubung. Forschungsarbeiten auf dem Gebiete des Ingenieurswesens, Heft. 312. VDI-Verlag, Berlin (1928)
Taylor, M.K., Ginsburg, J., Hickley, A.J., Gheyas, F.: Composite method to quantify powder flow as a screening method in early tablet or capsule formulation development. AAPS PharmSciTechn. 1(3), E18 (2000), doi:art 18
Williams, A.: Combustion of Liquid Fuel Sprays. Butterworths & Co. Ltd., London (1990)
Acknowledgement
The author gratefully acknowledges the contribution of Dr. Maarten Alderliesten to the text on the Moment-Ratio notation for the derivation of mean particle sizes.
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Merkus, H.G. (2016). Introduction. In: Merkus, H., Meesters, G. (eds) Production, Handling and Characterization of Particulate Materials. Particle Technology Series, vol 25. Springer, Cham. https://doi.org/10.1007/978-3-319-20949-4_1
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DOI: https://doi.org/10.1007/978-3-319-20949-4_1
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