18th European Symposium on Comminution & Classification

June 24th - 26th 2024

Miskolc - Hungary


Institute of Geotechnics, Slovak Academy of Sciences, Košice, Slovakia


Abstract: In this retrospective lecture the overall view on my activities in mechanochemistry during more than 40 years stay at Slovak Academy of Sciences will be presented. The agenda of results in science and technology of extractive metallurgy, materials science and medicine will be incorporated.  Knowledge which we obtained from treatment of nature minerals to obtain metals and application of the minerals in cancer treatment  was later broaden for preparation of synthetic minerals to obtain advanced materials with the application in photovoltaics and thermoelectrics.  All the mentioned approaches represent contribution to the common aim of mechanochemists: to prepare new materials with the desired properties in a reproducible way under easy-operating, environmentally friendly and essentially waste-free conditions. However, the presented results required cooperation with scientists from many foreign institutions. The great help of my followers who performed PhD studies under my supervision is strongly appreciated.


Short CV: Dr.h.c. Prof. RNDr. Peter Baláž, DrSc. is a specialist in the field of materials science, extractive metallurgy and mineral processing. He is member of Department of Mechanochemistry which is a centre of the research in mechanochemistry in Slovakia. Prof. Baláž is a member of various institutions such as IMA (International Mechanochemical Association) at IUPAC (International Union of Pure and Applied Chemistry), RFM (Reseau Francais de Mechanosynthese) and the Learned Society of Slovak Academy of Sciences. In the years 2000, 2008 and 2015 he obtained the Prizes of the Slovak Literary Foundation for his monographs “Extractive Metallurgy of Activated Minerals” (Elsevier) and “Mechanochemistry in Nanoscience and Minerals Engineering” (Springer). His SCI records in the year 2001, 2006, 2009, 2012 and 2014 has been awarded by Slovak Literary Found. During his carrier he completed long-term stays at Technical Universities in Berlin and Clausthal (Germany), University of Maryland Baltimore County (USA) and Busan National University (South Korea). He is active as PhD supervisor. Under his supervision 10 PhD thesis were successfully defended. He published 4 books, 16 chapters in monographs, 292 scientific papers in journals registered in Scopus. According to Scopus his papers have been cited more than 5500 times. His Hirsch index is 35.




Ádám Rácz: Particle shape modification by comminution in mineral and waste processing

Institute of Raw Material Preparation and Environmental Processing, University of Miskolc, Hungary


Abstract: The change of particle shape is a side effect in the comminution process; however in some cases the main objective of the comminution process can be the modification of particle shape as well. The particle shape modification can be achieved during the reduction of the particle size and without significant particle size decrease as well. In the presentation the different cases of targeted particle shape modification and their applications will be shown and the evaluation of the process by particle shape distribution and by efficiency parameters will be discussed for brittle and non-brittle materials as well.


Short CV: Dr. Ádám Rácz, PhD, associate professor at the Institute of Raw Material Preparation and Environmental Processing, University of Miskolc, Hungary. He has studied process engineering at University of Miskolc and received his PhD title in 2014. He has more than 15 years of experience in mineral and waste processing. His research interests are focused on the comminution processes for brittle and non-brittle materials also. In his previous work, he dealt with dry grinding and shape modification in stirred media mill, and later broadened his research area and worked in the field of design and optimization of waste preparation technologies and comminution of non-brittle materials. He has participated in many industrial research projects and in several Hungarian-European projects involving industrial and academic partners.