Picture of person typing on laptop with programming code visible on the laptop screen

World class computing and information science research at Strathclyde...

The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by University of Strathclyde researchers, including by researchers from the Department of Computer & Information Sciences involved in mathematically structured programming, similarity and metric search, computer security, software systems, combinatronics and digital health.

The Department also includes the iSchool Research Group, which performs leading research into socio-technical phenomena and topics such as information retrieval and information seeking behaviour.

Explore

Liberation of valuable inclusions in ores and slags by electrical pulses

Andres, U. and Timoshkin, I. and Jirestig, J. and Stallknecht, H. (2001) Liberation of valuable inclusions in ores and slags by electrical pulses. Powder Technology, 114 (1). pp. 40-50. ISSN 0032-5910

Full text not available in this repository. Request a copy from the Strathclyde author

Abstract

Results of comparative liberation tests on electrically disintegrated and mechanically comminuted oxide ores containing hematite and PGM and sulphide ores containing complex Cu sulphides and pentlandite showed that disintegration of ore aggregates by electrical pulses generates a higher percentage of liberated particles and lower percentage of fine material than that obtained by mechanical comminution. Mechanism of electrical disintegration creating a specific liberation process by splitting mineral aggregates along boundaries of minerals with different electrical parameters is described. The main effect of liberation by electrical pulses manifests in the generation of a higher percentage of the coarse monomineral particles and in the general increase of liberated material with dimensions of particles, which can be efficiently treated by the separating equipment. Comparative amount of monomineral particles in the fine (<106 μm) fractions of the sulphide ores fragmented by both methods does not differ substantially, while in the coarser particles (>106 μm), this difference sometimes exceeds 40%. General improvement in the recovery and grade was achieved on both oxide ores and in the pentlandite ore.