摘要
通过药剂结构修饰,制备了一种新型脂肪羧酸类捕收剂CM-5。在p H调整剂、淀粉、Ca Cl2、CM-5或油酸钠的浮选体系下进行了石英、绿泥石、赤铁矿单矿物浮选试验。结果表明:高碱条件下,相对于油酸钠,CM-5对经淀粉、Ca Cl2作用后的绿泥石具有更好的选择捕收作用,对同条件下的赤铁矿捕收效果较弱。温度试验表明,CM-5在15～35℃的范围内都具有良好的选择性捕收效率。Zeta电位测定结果表明,在p H=11. 5条件下,CM-5的吸附使经淀粉、Ca Cl2作用后的绿泥石、赤铁矿动电位分别下降约15、10 m V,而油酸钠的吸附使同条件下的绿泥石、赤铁矿动电位分别下降8、11 m V,说明CM-5能选择性地吸附到绿泥石上。综合分析,CM-5可作为一种高效的铁矿反浮选捕收剂。
A novel fatty carboxylic acid collector,CM-5,was prepared by the modification of the reagent structure.The flotation experiments of quartz,chlorite and hematite were carried out under the flotation system of pH regulator,starch,CaCl2,CM-5or sodium oleate.The results show that CM-5has better selective effect on chlorite after the action of starch and CaCl2than that of sodium oleate under high alkali condition,and it has less effect on hematite under the same conditions.The temperature experiment shows that CM-5has good selective collecting efficiency in the range of15-35℃.The results of Zeta potential determination show that under the condition of pH=11.5,the adsorption of CM-5will decrease the zeta potential of chlorite and hematite by15mV and10mV.Under the same condition,the adsorption of sodium oleate will decrease the zeta potential of chlorite and hematite by8mV and11mV.It explains that CM-5can selectively adsorb on the chlorite.Comprehensive analysis,CM-5can be used as an efficient reverse flotation collector for iron ore.
作者
崔瑞
邓小龙
CUI Rui;DENG Xiaolong(College of resources and environmental engineering, Wuhan University of Science and Technology, Wuhan 430081, China;Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resources, Wuhan 430081, China)
出处
《矿产保护与利用》
2018年第6期46-50,共5页
Conservation and Utilization of Mineral Resources
基金
国家自然科学基金项目(51704214)
关键词
铁矿
反浮选
捕收剂
耐低温
石英
绿泥石
iron ore
reverse flotation
collector
low temperature resistance
quartz
chlorite
