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金属矿山 ›› 2019, Vol. 48 ›› Issue (02): 97-101.

• 浮选·浮选药剂 • 上一篇    下一篇

新型锂辉石捕收剂DRQ-3的浮选性能及作用机理研究

谢瑞琦1,2,朱一民1,2,韩旭倩1,2,张猛1,2,李艳军1,2   

  1. 1. 东北大学资源与土木工程学院,辽宁 沈阳110819;2. 难采选铁矿资源高效开发利用技术国家地方联合工程研究中心,辽宁 沈阳 110819
  • 出版日期:2019-02-25 发布日期:2019-04-08
  • 基金资助:

    基金项目:国家自然科学基金项目(编号:51774069,51474055)。

Flotation Behaviors and Mechanisms of a Amphoteric Chelated Type Collector DRQ-3 for Spodumene Flotation

Xie Ruiqi1,2, Zhu Yimin1,2, Han Xyuqian1,2, Zhang Meng1,2, Li Yanjun1,2   

  1. 1. School of Resource and Civil Engineering,Northeastern University,Shenyang 110819,China;2. National-Local Joint Engineering Research Center of Refractory Iron Ore Resources Efficient Utilization Technology,Shenyang 110819, China
  • Online:2019-02-25 Published:2019-04-08

摘要: 采用实验室合成的新型两性螯合捕收剂DRQ-3对锂辉石进行浮选试验,同时借助红外光谱和Zeta电位检测手段对DRQ-3与锂辉石作用机理进行了研究。试验结果表明,在室温(26 ℃)、矿浆自然pH值(pH=8.5)、DRQ-3用量为50 mg/L的试验条件下,锂辉石的浮选回收率可达94.50%,DRQ-3对锂辉石显示出很强的捕收能力。动电位和红外光谱检测结果表明,锂辉石与DRQ-3不会发生静电吸附,捕收剂DRQ-3与锂辉石之间存在化学吸附,由锂辉石晶体结构推断主要是Al3+与DRQ-3中的活性基团OH-发生离子键合反应。

关键词: 两性螯合捕收剂, 锂辉石, 浮选性能, 吸附机理

Abstract: The floatation experiments of spodumene were carried out by a new type of collector DRQ-3 synthesizing in the laboratory. The adsorption mechanism of DRQ-3 collector on spodumene surface was established by Zeta potential measurements, Fourier transforminfrared (FT-IR) spectrum, in conjunction with the results of flotation test. The results show that: in the condition of 26 ℃, pulp natural pH (pH = 8.5), spodumene flotation recovery rate can reach 94.50% with 50 mg/L DRQ - 3 as collector, which indicated that DRQ-3 has a strong ability of collecting for spodumene. The results of FT-IR spectroscopy showed that there was a chemical adsorption between the collector DRQ-3 and spodumene. According to the crystal structure of spodumene, it was speculated that the chemical reaction between the spodumene and DRQ-3 was mainly depended on Al3+ and the active group in DRQ-3. The results of Zeta potential measurement indicated that the electrostatic adsorption between spodumeneand DRQ-3 was impossible. Combining with the results of FT-IR spectroscopy, it was revealed that the DRQ-3 collector had adsorbed on the spodumene in the form of chemical adsorption.

Key words: amphoteric chelated collectors, Spodumene, Flotation performance, Adsorption mechanism