Studies on grinding media wear and its effect on flotation of ferrugenous phosphate ore

Deshpande, RJ and Natarajan, KA (1999) Studies on grinding media wear and its effect on flotation of ferrugenous phosphate ore. In: Minerals Engineering, 12 (9). pp. 1119-1125.

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Abstract

Marked ball grinding rests were carried out in the laboratory with a low grade phosphate ore under different experimental conditions. Two types of balls were used, namely high carbon low alloy (HCLA) cast steel and high chrome cast iron. Results of marked ball grinding tests indicated that ball wear increased with time and showed a sharp increase for wet grinding over dry grinding. Ball wear under wet grinding conditions was also influenced by the gaseous atmosphere in the mill. The grinding ball materials could be arranged in the following order with respect to their overall wear resistance: High chrome cast iron > HCLA cast steel balls Methods to minimize ball wear through control of mill atmosphere and addition of flotation reagents are discussed. Effect of grinding media and additions of flotation reagents during grinding on phosphate ore flotation are also discussed. (C) 1999 Elsevier Science Ltd. All rights reserved.

Item Type:	Journal Article
Publication:	Minerals Engineering
Publisher:	Elsevier Science
Additional Information:	Copyright of this article belongs to Elsevier Science.
Keywords:	Grinding;flotation;non-metallic ores
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	30 Jun 2011 07:10
Last Modified:	30 Jun 2011 07:10
URI:	http://eprints.iisc.ac.in/id/eprint/38809

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