东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2011, Vol. 32 ›› Issue (9): 1348-1351.DOI: -

• 论著 • 上一篇    下一篇

含镁碳酸盐矿物溶解度模拟计算及对浮选过程的影响

李强;印万忠;马英强;刘明宝;   

  1. 东北大学资源与土木工程学院;
  • 收稿日期:2013-06-19 修回日期:2013-06-19 发布日期:2013-04-04
  • 通讯作者: -
  • 作者简介:-
  • 基金资助:
    国家自然科学基金资助项目(51074037);;

Simulation and effects on flotation of solubility of magnesium carbonate minerals

Li, Qiang (1); Yin, Wan-Zhong (1); Ma, Ying-Qiang (1); Liu, Ming-Bao (1)   

  1. (1) School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China
  • Received:2013-06-19 Revised:2013-06-19 Published:2013-04-04
  • Contact: Li, Q.
  • About author:-
  • Supported by:
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摘要： 含镁碳酸盐矿物在水中的溶解对浮选过程会产生影响.利用PHREEQC软件对菱镁矿和白云石在纯水中的溶解度进行了模拟计算.结果表明:温度对菱镁矿和白云石溶解度的影响规律不同;当溶液pH值为11时,菱镁矿和白云石的溶解度最低,分别为12.48,10.05 mg/L;除了定位离子,大部分金属阳离子和无机阴离子会增加含镁碳酸盐的溶解度;当菱镁矿、白云石在同一溶液中溶解平衡时,溶解度分别为14.03,3.16 mg/L.十二胺浮选体系中,降低矿物的溶解度有利于该浮选过程.

关键词: 溶解度, 含镁碳酸盐, PHREEQC, 模拟计算, 浮选

Abstract: The solubility of magnesium carbonate minerals affects the flotation process. The solubility of magnesite and dolomite in water was simulated by PHREEQC software. The results showed that the effect of temperature on the solubility of magnesite and dolomite is different. When the solution pH is 11, the lowest solubility of magnesite and dolomite are 12.48 mg/L and 10.05 mg/L, respectively. Most of the metal cations and inorganic anions except for positional ions increase the solubility. In the same solution, the solubility of magnesite and dolomite are 14.03 mg/L and 3.16 mg/L when the dissolution is in equilibrium. In dodecylamine flotation system, reducing the solubility of mineral is helpful to the flotation process.

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