Impact of the Roller Press Briquetting Process on the Morphological and Mechanical Properties of Apatite Ore
Bembenek M. Dmytriv V. Kowalski Ł. Turniak K. Frocisz Ł. Niyazbekova R. Krawczyk J.
April 2025Multidisciplinary Digital Publishing Institute (MDPI)
Materials
2025#18Issue 7
In this study, the authors investigated the briquetting of hydroxyapatite and fluorapatite rock material and evaluated the properties of briquettes prepared in a roller press. This was conducted 10 years after the manufacturing process took place. These rocks are a primary source of the mineral phosphorus, for which demand is high, particularly in agriculture. The proper handling of the material in the industry is required due to its high environmental impact. In order to correctly identify the subject of this study, the authors analyzed its composition using energy-dispersive X-ray spectroscopy, scanning electron microscopy and polarized light microscopy. Afterwards, the authors analyzed the properties of the saddle-shaped briquettes, including their surface roughness (Ra, Rq, Rt), surface Leeb hardness distribution, porosity and density. The briquettes exhibited relatively large Ra values (mean 9.67 µm). The highest hardness was registered at the specimen center (61 HV5), whereas the lowest was at the edge (25 HV5). A high density of 2.51 g/cm3 was achieved in the process. It was possible to obtain saddle-shaped briquettes with reproductible properties, high density (porosity of 21%) and durability without using a binder additive. The study demonstrated that roller press briquetting can be successfully utilized as a method for compacting phosphate-bearing materials for the purpose of storage transportation and further processing.
agglomeration , apatite , briquetting , compaction , phosphorite rock
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Department of Manufacturing Systems, Faculty of Mechanical Engineering and Robotics, AGH University of Krakow, A. Mickiewicza 30, Krakow, 30-059, Poland
Department of Design Machine and Automotive Engineering, Lviv Polytechnic National University, Lviv, 79013, Ukraine
Institute of Geological Sciences, University of Wrocław, pl. Maksa Borna 9, Wrocław, 50-204, Poland
Faculty of Metals Engineering and Industrial Computer Science, AGH University of Krakow, A. Mickiewicza 30, Krakow, 30-059, Poland
Department of Standardization, Metrology and Certification, Technical Faculty, S. Seifullin Kazakh Agrotechnical Research University, 62 Zhenis Ave., Astana, 010011, Kazakhstan
TOO “Kazecoengineering”, Turan St., 50/3, 225, Astana, 010000, Kazakhstan
Department of Manufacturing Systems
Department of Design Machine and Automotive Engineering
Institute of Geological Sciences
Faculty of Metals Engineering and Industrial Computer Science
Department of Standardization
TOO “Kazecoengineering”
10 лет помогаем публиковать статьи Международный издатель
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