Particle Size Measurements

This book focuses on the practical aspects of particle size measurement: a major difference with existing books, which have a more theoretical approach. Of course, the emphasis still lies on the measurement techniques. For optimum application, their theoretical background is accompanied by quantitative quality aspects, limitations and problem identification. In addition the book covers the phenomena of sampling and dispersion of powders, either of which may be dominant in the overall analysis error. Moreover, there are chapters on the general aspects of quality for particle size analysis, quality management, reference materials and written standards, in- and on-line measurement, definitions and multilingual terminology, and on the statistics required for adequate interpretation of results. Importantly, a relation is made to product performance, both during processing as well as in final application. In view of its set-up, this book is well suited to support particle size measurement courses.

Autorentext

Dr. Henk G. Merkus has been working at Delft University of Technology for about 35 years, the last 20 years of it in Particle Characterization in the Particle Technology Group. Since over 15 years he has been a member of ISO/TC24 on Sieving and Other Methods for Particle Size Measurement. Although retired, he continues to be active in giving courses on this subject, in the Netherlands as well as in Sweden and the United Kingdom.
Henk Merkus is the Editor of three other Springer books: "Particulate Products" (2014), Production, Handling and Characterization of Particulate Materials (2016), and "Particles and Nanoparticles in Pharmaceutical Products" (2018), all in collaboration with co-editor Gabriel M.H. Meesters and the last one with Wim Oostra as third editor.

Zusammenfassung
Following my graduation in physical organic chemistry at the University of Amst- dam, I started to work at the Royal Dutch Shell Laboratories in Amsterdam. My first assignment was research in the field of detergents and industrial chemicals. It was followed by development work on thermal wax cracking for production of C C 2 14 olefins and on acid-catalyzed synthesis of carboxylic acids from C C olefins. 3 6 Then, I made a significant change to analytical chemistry, first at Shell's process development department and later in the chemical engineering department of Delft University of Technology. In both departments, there was a large variety of analy- cal techniques and development of new methods for automated analysis of small process streams. It was the time that gas chromatography conquered the world. In this field, a firm basis was given by Henk Boer, Arie Kwantes and Frits Zuiderweg at Shell Research Laboratories in Amsterdam, both for packed and for capillary c- umns. The potential of gas chromatography was huge and, therefore, also in Delft, its use increased enormously. Moreover, the growth of this technique was facilitated significantly by the rapidly developing electronics industry. It not only led to digital peak integrators and personal computers but also enabled complex measurement techniques. In addition, I became involved in surface area and porosity characteri- tion of catalysts and adsorbents, on which topic the research had been initiated by Prof. J. H. de Boer.

Inhalt

Particle Size, Size Distributions and Shape.- Quality Aspects in Particulate Analysis.- Sampling of Particulate Material.- Dispersion of Powders in Air and in Liquids.- Overview of Size Characterization Techniques.- Microscopy and Image Analysis.- Sieves and Sieving.- Electrical Sensing Zone.- Laser Diffraction.- Ultrasound Extinction.- Dynamic Light Scattering.- Sedimentation Techniques.- In- and On-Line Measurement.- Written Standards.- Reference Materials.- Quality Management and Calibration.- Definitions and Symbols.- Multilingual Terminology.- Statistical Background.