A quick method for Bond work index approximate value determination
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Institute for Technology of Nuclear and Other Mineral Raw Materials
Technical faculty in Bor, University of Belgrade
Publication date: 2016-11-01
Corresponding author
Milan Trumic   

University of Belgrade, Technical Faculty at Bor, Vojske Jugoslavije 12, 19210 Bor, Serbia
Physicochem. Probl. Miner. Process. 2017;53(1):321-332
The Bond work index is a measure of ore resistance to crushing and grinding and is determined using the Bond grindability test. Its value constitutes ore characteristic and is used for industrial comminution plants designing. Determining the Bond work index value is quite complicated, time-consuming and requires trained operating personnel and therefore is subjected to errors. A quick method for the Bond work index approximate value determination, which is based on the first order grinding kinetics, is presented in this paper. Comparative experiments for the Bond work index value determination using the standard and quick procedures were carried out on samples of limestone and andesite, and on composite samples containing both ores in different mass proportions. This quick procedure can be performed with an arbitrary number of milling cycles, depending on the desired accuracy.
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