Akademik Veri Yönetim Sistemi
EURO CERAMICS VIII, PTS 1-3, cilt.264-268, ss.1399-1402, 2004 (SCI-Expanded, Scopus)
Thermal expansion of the selectively heated minerals offers the potential to further liberate the ore minerals from the gangue at larger particle sizes [1]. Cleaner liberation of the ore mineral at a larger particle size would reduce the grinding energy requirements as well as improve the concentrate grade and metal recovery after beneficiation. Microwaves used in comminution, including crushing and grinding processes, have the potential to reduce the required energy. The applications of microwave to mineral processing include drying of coal, recovery of gold from low grade ores and tailings, extraction of rare earth elements, the retorting of soil shale end smelting of metals. Energy consumed in comminution can be as high as 50-70% of the total process energy [2, 3 & 4]. If full-scale application of microwave technology can be accomplished, the addition and operation of a microwave could be an easy and efficient retrograde to reduce the mill power requirements by 25%. In this paper, it is shown that microwave energy is capable of inducing thermal stress cracking to decrease the energy requirements of grinding and leading to possible new applications for mining and ceramics industries.