Electrical properties of composite mineral particles and their effect on dielectrophoresis

Ballantyne, Grant and Holtham, Peter N. (2012). Electrical properties of composite mineral particles and their effect on dielectrophoresis. In: Pradip (Conference President), XXVI International Mineral Processing Congress - IMPC 2012: Conference Proceedings. XXVI International Mineral Processing Congress - IMPC 2012, New Delhi, India, (1489-1497). 24-28 September 2012.

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Name Description MIMEType Size Downloads
Author Ballantyne, Grant
Holtham, Peter N.
Title of paper Electrical properties of composite mineral particles and their effect on dielectrophoresis
Conference name XXVI International Mineral Processing Congress - IMPC 2012
Conference location New Delhi, India
Conference dates 24-28 September 2012
Proceedings title XXVI International Mineral Processing Congress - IMPC 2012: Conference Proceedings
Journal name 26th International Mineral Processing Congress, IMPC 2012: Innovative Processing for Sustainable Growth - Conference Proceedings
Place of Publication New Delhi, India
Publisher Technowrites
Publication Year 2012
Sub-type Fully published paper
ISBN 8190171437
Editor Pradip (Conference President)
Start page 1489
End page 1497
Total pages 9
Collection year 2013
Language eng
Abstract/Summary Dielectrophoresis is a separation technique that uses a non-uniform electrical field to separate particles on the basis of their permittivity. There are many areas of mineral processing that might benefit from the application of dielectrophoresis. These include: coarse removal of gangue, recovery of ultrafine particles, upgrading of flotation concentrates or simply as a laboratory analysis technique. In order to determine the potential value of dielectrophoresis to the mineral processing industry, the response of composite particles was investigated. The electrical properties of composites involve complex relationships between the shape, distribution and permittivity of the individual grains within the rock. The relationship between mineral composition and dielectrophoretic force was measured on single particles from two ore types. The results were used to populate a model that could predict the separation characteristics of the ore. The insights gained from this model separator allowed potential applications of the technology to be examined and their performance evaluated.
Keyword Dielectrophoresis
Mineral processing
Q-Index Code E1
Q-Index Status Confirmed Code
Institutional Status UQ

 
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Created: Mon, 08 Oct 2012, 15:14:41 EST by Karen Holtham on behalf of Julius Kruttschnitt Mineral Research Centre