Surface morphology of malachite in the process of sulfidization

摘要：

Sulfidization is a key process for the flotation of copper oxide ores, which affects the flotation performance significantly. The surface morphology of malachite in the process of sulfidization using sodium sulfide as sulfidizer was investigated by SEM and EDS. The surface morphology of malachite presents either in the form of column-like aggregates or fibre-like ones prior to reaction with sodium sulfide. No obvious sulfide layer was observed on the malachite surface when it was dealt with insufficient amount of sodium sulfide. However a uniform sulfide layer was found when it was dealt with optimum amount of sodium sulfide. Furthermore, a snowflake-like crystal appeared on the malachite surface when it was dealt with excessive amount of sodium sulfide, and the snowflake-like crystal is very loose and easy to be peeled off, which can illustrate the difficulties for copper oxide ores flotation in terms of surface morphology.

关键词： malachite surface morphology sulfidization process

作者: Dianwen Liu Jianjun Fang Xiaolin Zhang Shuming Wen Wenbin Zhang

作者单位: Faculty of Land Resource Engineering, Kunming University of Science and Technology,650093, Kunming, Faculty of Land Resource Engineering, Kunming University of Science and Technology,650093, Kunming,

会议类型: 国际会议

会议名称: The 19th International Biohydrometallurgy Symposium(第19届国际生物湿法冶金大会 IBS2011)

会议地点: 长沙

会议语种:英文

页码: 865-870

在线出版日期: 2011-09-18（万方平台首次上网日期，不代表论文的发表时间）