摘要
通过浮选试验和浮选溶液化学计算研究了白钨矿浮选过程中方解石对磷酸钠性能的影响以及作用机制。结果表明,磷酸钠对白钨矿的抑制作用较弱,浮选体系中添加碳酸根离子后基本不影响磷酸钠的抑制性能,而方解石和钙离子可强化磷酸钠对白钨矿的抑制作用。方解石溶解产生的钙离子浓度大于白钨矿,且方解石加入白钨矿浮选体系后提高了溶液中钙离子浓度,进而强化了磷酸钠对白钨矿抑制作用。
The mechanism and effect of sodium phosphate in scheelite flotation was investigated through flotation tests and flotation solution calculation. The results indicate that sodium phosphate cannot depress scheelite flotation,and the addition of sodium carboante cannot effect the performance of sodium phosphate. However,the addition of calcite and calcium ions can strengthen the depressing effect of sodium phosphate on scheelite flotation. The solubility of calcite was higher than that of scheelite,and the addition of calcite increased the calcium ions concentration of scheelite solution,hence the depressing effect of sodium phosphate on scheelite flotation can be strengthened.
作者
王纪镇
印万忠
程雅芝
肖雨辰
WANG Jizhen;YIN Wanzhong;CHENG Yazhi;XIAO Yuchen(School of Chemistry and Chemical Engineering,Xi’ an University of Science and Technology,Xi’ an 710054,China;School of Resource and Civil Engineering,Northeastern University,Shenyang 110819,China)
出处
《矿产保护与利用》
2018年第3期77-80,共4页
Conservation and Utilization of Mineral Resources
基金
陕西省自然科学基础研究计划(2017JQ5090)
西安科技大学校级培育基金项目(201624)
陕西省大学生创新创业训练计划项目(201811049)
关键词
白钨矿
方解石
磷酸钠
浮选
钙离子
scheelite
calcite
sodium phosphate
flotation
calcium ions
