| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1599570 | Acta Metallurgica Sinica (English Letters) | 2006 | 5 Pages |
Abstract
Based on the characteristics of graphite ore from Panzhihua district, the present research tried to find a new technology to increase the purity of the graphite carbon from 93% to 97%. Study was conducted on leaching agents, time, temperature, stirring speed and concentration of leaching solution affecting the process. The technological parameters chosen were: L/S=3:1, reaction time 30min, 5% concentration of sulfuric acid, reaction temperature 70°C, stirring speed 200rev/min. The results of the continuing tests with one kilogram showed that the graphite content can be increased from 93% to 97%, which reaches the requirement for high grade graphite. When waste acid from coke making is used to leach graphite, the result is also satisfactory, but the treatment of waste solution containing organic substances has to be further investigated.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Y.Z. Lan, S. Zhang, G.Y. Wu, Q.R. Tang,