Laboratory investigation on the effect of biodesulphurization process on the sulphide ore self-heating
In this paper, biodesulphurization process was carried out for sulphide ores from Xinqiao mine, located in central east of China, by six groups of flask shaking and column leaching tests. The behavior of pH, Eh, Fe2 + concentration was monitored throughout the experiment. Pyritic sulphur removal of 42. 6％ was obtained for flask shaking test, while 39.4％ for the column leaching. The surface morphology of the leached residue was then analyzed by SME, and the result showed good agreement with the result of biodesulphurization ratio. Furthermore, it was concluded from the self-heating experiment that the critical temperature dropped from 332C€ to 228t after the biodesulphurization treatment, which indicates that removing sulphur from sulphide helps reduce its self-heating and spontaneous combustion potential.
biodesulphurization sulphide ore self-heating spontaneous combustion
Shenghua Yin Aixiang Wu Hongjiang Wang
Key Laboratory of the Ministry of Education of China for Efficient Mining and Safety of Metal Mines, School of Civil and Environmental Engineering,University of Science and Technology Beijing, 100083,
国际会议
The 19th International Biohydrometallurgy Symposium(第19届国际生物湿法冶金大会 IBS2011)
长沙
英文
688-693
2011-09-18（万方平台首次上网日期，不代表论文的发表时间）