Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Novel Quick Value Assessment Procedure Of The Bond Work Index

Dejan Todorović
* ORCID logo ,
Branislav Ivošević
,
Vladimir Jovanović
,
Dragan Radulović
,
Vladan Milošević
,
Marko Pavlović
,
Sonja Milićević
ORCID logo
Version 1 : Received: 29 January 2023 / Approved: 31 January 2023 / Online: 31 January 2023 (15:30:54 CET)

How to cite: Todorović, D.; Ivošević, B.; Jovanović, V.; Radulović, D.; Milošević, V.; Pavlović, M.; Milićević, S. Novel Quick Value Assessment Procedure Of The Bond Work Index. Preprints 2023, 2023010587. https://doi.org/10.20944/preprints202301.0587.v1 Todorović, D.; Ivošević, B.; Jovanović, V.; Radulović, D.; Milošević, V.; Pavlović, M.; Milićević, S. Novel Quick Value Assessment Procedure Of The Bond Work Index. Preprints 2023, 2023010587. https://doi.org/10.20944/preprints202301.0587.v1

Abstract

The bond index is an indicator of the grindability of the material and is widely used in the preparation of mineral raw materials and the cement industry. Paper offers new, abbreviated and simplified procedure to determine Bond work index that relies on first-order kinetics law and can be performed with any number of grinding cycles, depending on the desired accuracy of the required data. The parameters G and P80 of each grinding cycle are multiplied by the newly founded coefficients giDT and piDT to obtain values approximately equal to these parameters of the last grinding cycle when the equilibrium state is reached in the standard test. The paper presents comparative results obtained by standard Bond and new shortened procedure on individual samples of andesite, limestone, copper-ore and smelter slag and on composite samples of andesite from limestone and copper-ore with smelter slag in different mass ratios. As the number of grinding cycles increases, the precision of the shortened procedure increases, and the mean square error decrease 3.59%, 2.61% and 1.74% for two, three and four grinding cycles.

Keywords

grinding, kinetics; Bond index; simplified procedure; composite samples.

Subject

Chemistry and Materials Science, Materials Science and Technology

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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