Recent developments in high voltage electrical comminution research and its potential applications in the mineral industry

Shi, Feng N., Weh, A., Manlapig, Emmanuel and Wang, Eric (2012). Recent developments in high voltage electrical comminution research and its potential applications in the mineral industry. In: Pradip (Conference President), XXVI International Mineral Processing Congress - IMPC 2012: Conference Proceedings. XXVI International Mineral Processing Congress - IMPC 2012, New Delhi, India, (4950-4962). 24-28 September 2012.

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Name Description MIMEType Size Downloads
Author Shi, Feng N.
Weh, A.
Manlapig, Emmanuel
Wang, Eric
Title of paper Recent developments in high voltage electrical comminution research and its potential applications in the mineral industry
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
Place of Publication New Delhi, India
Publisher Technowrites
Publication Year 2012
Sub-type Fully published paper
ISBN 8190171437
Editor Pradip (Conference President)
Start page 4950
End page 4962
Total pages 13
Collection year 2013
Language eng
Abstract/Summary In the current energy-sensitive world, sustainable development in the mineral industry will require new, better and more efficient processes. Novel comminution methods, which offer the prospect of achieving the required outcomes of size reduction and mineral liberation at lower energy consumption, are continually being sought. In the past five years, extensive research using high voltage pulse electrical comminution technology has been carried out at the Julius Kruttschnitt Mineral Research Centre (JKMRC), in collaboration with seiFrag AG. The major outcome of this research is the development of the concept of pre-weakening ore particles by electrical comminution procedures to reduce the energy consumption in the downstream grinding circuit. The research has also verified the preferential liberation of valuable minerals by electrical comminution. Given the advantages, several potential applications of electrical comminution in the mineral industry are proposed, including AG/SAG mill feed pre-weakening, pebble treatment, ball mill feed pre-weakening, early recovery of the liberated valuable minerals, crack/micro crack generation for improved leaching, and smelter slag treatment. For the mineral industry to utilize electrical comminution, two emerging issues identified from the research need to be address. They are the energy consumption by electrical comminution in the locked cycle treatment and the facilities scale up necessary to move this technology from the laboratory to the plant.
Keyword High voltage pulses
Electrical comminution
Energy efficiency
Mineral liberation
Q-Index Code E1
Q-Index Status Confirmed Code
Institutional Status UQ

 
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Created: Mon, 08 Oct 2012, 13:29:16 EST by Karen Holtham on behalf of Julius Kruttschnitt Mineral Research Centre