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首页> 外文期刊>High temperature materials and processes >The Enhancing Effect of Microwave Irradiation and Ultrasonic Wave on the Recovery of Zinc Sulfide Ores
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The Enhancing Effect of Microwave Irradiation and Ultrasonic Wave on the Recovery of Zinc Sulfide Ores

机译:微波辐射和超声波对硫化锌矿石回收的增强作用

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摘要

A novel process for the treatment of zinc sulfide ores is discussed in this paper, which consists of two procedures: microwave roasting pretreatment and syner-gistic chelation. What's more, the reaction mechanism also has been studied. By comparing XRD patterns before and after roasting, it can be concluded that microwave truly alleviates the reaction energy, and adding Na_2O_2 avoids the emission of SO_2. % recovery of zinc can reaches 72.47 % on conditions of adding Na_2O_2 25 %, microwave activating temperature 500 ℃, holding time 10 min, leaching temperature 40 ℃, ultrasonic wave power 1,800 W, leaching time 4.5 h and solid to liquid ratio 10:1 in ammonium chloride solution whose total ammonium concentrate is 7.5mol/L (c(NH_3)_T = 7.5 mol/L). The molar ratio of NH_4C1 and NH_3-H_2O is 1:1 (c(NH_4Cl): c(NH_3-H_2O) = 1:1).The effect of ultrasonic wave power in this process is to shorten reaction time.
机译:本文讨论了一种处理硫化锌矿石的新工艺,该工艺包括两个程序:微波焙烧预处理和协同螯合。此外,还研究了反应机理。通过比较焙烧前后的XRD图谱,可以得出结论,微波确实减轻了反应能量,加入Na_2O_2避免了SO_2的释放。在添加Na_2O_2 25%,微波活化温度500℃,保持时间10分钟,浸出温度40℃,超声波功率1,800 W,浸出时间4.5 h和固液比10:1的条件下,锌的回收率可达到72.47%。氯化铵溶液中的总氨精矿浓度为7.5mol / L(c(NH_3)_T = 7.5 mol / L)。 NH_4C1与NH_3-H_2O的摩尔比为1:1(c(NH_4Cl):c(NH_3-H_2O)= 1:1)。在此过程中,超声波功率的作用是缩短反应时间。

著录项

  • 来源
    《High temperature materials and processes》 |2017年第6期|587-591|共5页
  • 作者单位

    State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming, Yunnan 650093, China, Yunnan Provincial Key Laboratory of Intensification Metallurgy, Kunming, Yunnan 650093, China, National Local Joint Laboratory of Engineering Application of Microwave Energy and Equipment Technology, Kunming, Yunnan 650093, China, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650093, China;

    State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming, Yunnan 650093, China, Yunnan Provincial Key Laboratory of Intensification Metallurgy, Kunming, Yunnan 650093, China, National Local Joint Laboratory of Engineering Application of Microwave Energy and Equipment Technology, Kunming, Yunnan 650093, China, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650093, China;

    Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming 650093, Yunnan, China;

    State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming, Yunnan 650093, China, Yunnan Provincial Key Laboratory of Intensification Metallurgy, Kunming, Yunnan 650093, China, National Local Joint Laboratory of Engineering Application of Microwave Energy and Equipment Technology, Kunming, Yunnan 650093, China, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650093, China;

    State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming, Yunnan 650093, China, Yunnan Provincial Key Laboratory of Intensification Metallurgy, Kunming, Yunnan 650093, China, National Local Joint Laboratory of Engineering Application of Microwave Energy and Equipment Technology, Kunming, Yunnan 650093, China, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650093, China;

    State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming, Yunnan 650093, China, Yunnan Provincial Key Laboratory of Intensification Metallurgy, Kunming, Yunnan 650093, China, National Local Joint Laboratory of Engineering Application of Microwave Energy and Equipment Technology, Kunming, Yunnan 650093, China, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650093, China;

    State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming, Yunnan 650093, China, Yunnan Provincial Key Laboratory of Intensification Metallurgy, Kunming, Yunnan 650093, China, National Local Joint Laboratory of Engineering Application of Microwave Energy and Equipment Technology, Kunming, Yunnan 650093, China, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650093, China;

    State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming, Yunnan 650093, China, Yunnan Provincial Key Laboratory of Intensification Metallurgy, Kunming, Yunnan 650093, China, National Local Joint Laboratory of Engineering Application of Microwave Energy and Equipment Technology, Kunming, Yunnan 650093, China, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650093, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    zinc sulfide ores; microwave roasting; syner-gistic chelation; recovery of zinc;

    机译:硫化锌矿;微波烘烤;协同螯合;锌回收率;

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