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A study on Flotation of Crystalline Graphite by Microbubble Column  

Han, Oh-Hyung (Department of Resource Engineering, Chosun University)
Kang, Hyun-Ho (Department of Resource Engineering, Chosun University)
Publication Information
Resources Recycling / v.15, no.2, 2006 , pp. 37-44 More about this Journal
Abstract
The total amount of graphite reserves in Korea is about 260 thousand tons. Graphite larks international competitiveness it is mined in only few mines, but recently the demand of portable electronic has increased. Therefore a research for manufacturing domestic high purity graphite is necessary because all of high purity graphite used electrode of 2nd batter depends on expensive importation. A preprocessing level for producing high purity graphite, flotation was conducted using microbubble column machine. In this research $D_{50}=10.314{\mu}m$ sample was used which was produced after grinding 29.50% F.C. primary crushing sample($D_{50}=69.393{\mu}m$) for 20 minutes through attrition mill. As a result using this sample, product above 95% F.C. with recovery over 90% was obtained with only after first stage process through the microbubble column.
Keywords
high purity graphite; microbubble column; flotation; grinding time;
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  • Reference
1 Yoon, R. H, Adel, G. T, Luttrell, G. H. and Weber, A. T. 1987: Proceedings, Fourth Korea/USA Joint Workshop on Coal Utilization Technology, Seoul, October 19-21
2 G. H. Luttrell, A. T. Weber, G.T. Adel and R. H. Yoon. 1988: Column Flotation, Society of Mining Engineers, Inc., Littleton, Colorado, Chapter 21, 205-211
3 R. H. Yoon, G. T. Adel, G. H. Luttrell, M. J. Mankosa and A.T. Weber 1988: Microbubble Flotation of Fine Particles, Interfacial Phenomena in Biotechnology and Materials Processing. Elsevier Science Publishers B. V., Amsterdam, 363-374
4 정인복, 양재열, 이수영, 1979: 미분상 흑연광 부선에 있어서 조선정광에 대한 재 마광효율에 관하여, 대한광산학회지, 16(4), pp. 272-279
5 Mankosa, M. J., Adel, G. T. and Yoon, R. H. 1989: Effect of Operating Parameters in Stirred Ball Mill Grinding of Coal, Power Technology, 59
6 Roskill Information Services, Ltd. 2002: The Economics of Natural Graphite
7 Yoon, R. H, Luttrell, G. H., Adel, G. T. and Trigg, R. D., 1984: Cleaning of Ultrafine Coal by Microbubble Flotation, Proceedings, First Annual pittsburgh Coal Conference, pittsburgh, september 17-21
8 한오형, 정재헌, 윤여환 1991: 鱗狀黑鉛의品位向上을 위한 Microbubble column 浮選拔術의適用, 한국자원공학회지, 28(2), pp. 141-147
9 Fogg, C. T and Boyle, Jr., E. H. 1987: Flake and High Crystalline Graphite Availability - Market Economy Countries: A Minerals Availability Appraisal, USBM Inf .Circ. 9122, 40