Effect and mechanism of dolomite with different size fractions on hematite flotation using sodium oleate as collector

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• 作者：Xi-mei Luo 罗溪栿/a> ; Wan-zhong Yin 印万彿/a> ; Yun-fan Wang 王云嶿/a>…
• 关键词：dolomite ; hematite ; sodium oleate ; mineral dissolution ; depressing effect
• 刊名：Journal of Central South University
• 出版年：2016
• 出版时间：March 2016
• 年：2016
• 卷：23
• 期：3
• 页码：529-534
• 全文大小：615 KB
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• 作者单位：Xi-mei Luo 罗溪梅 (1)
  Wan-zhong Yin 印万忠 (2)
  Yun-fan Wang 王云帆 (3)
  Chuan-yao Sun 孙传尧 (4)
  Ying-qiang Ma 马英强 (2)
  Jian Liu 刘建 (1)
  
  1. State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization (Faculty of Land and Rescource Engineering, Kunming University of Science and Technology, Kunming, 650093, China
  2. College of Zijin Mining, Fuzhou University, Fuzhou, 350116, China
  3. Faculty of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China
  4. Beijing General Research Institute of Mining & Metallurgy, Beijing, 100044, China
  
• 刊物类别：Engineering
• 刊物主题：Engineering, general
  Metallic Materials
  Chinese Library of Science
  
• 出版者：Central South University, co-published with Springer
• ISSN：2227-5223

文摘

The effect of dolomite with different particle size fractions on hematite flotation was studied using sodium oleate as collector at pH of about 9. The effect mechanism of dolomite on hematite flotation was investigated by means of solution chemistry, ultraviolet spectrophotometry (UV), inductively coupled plasma atomic emission spectrometry (ICP-AES) and X-ray photoelectron spectroscopy (XPS). It is observed that dolomite with different size fractions has depressing effect on hematite flotation using sodium oleate as collector, and dolomite could be the “mineral depressant” of hematite using sodium oleate as collector. The reasons for that are concerned with sodium oleate consumption and the adsorption onto hematite of dissolved species of dolomite.