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机械活化对废荧光粉中钇浸出动力学的影响

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聂正林, 孟雯, 苑文仪, 王临才, 王晓岩, 张承龙, 白建峰, 王景伟. 机械活化对废荧光粉中钇浸出动力学的影响[J]. 环境工程学报, 2019, 13(6): 1410-1416. doi: 10.12030/j.cjee.201810007
引用本文: 聂正林, 孟雯, 苑文仪, 王临才, 王晓岩, 张承龙, 白建峰, 王景伟. 机械活化对废荧光粉中钇浸出动力学的影响[J]. 环境工程学报, 2019, 13(6): 1410-1416. doi: 10.12030/j.cjee.201810007
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NIE Zhenglin, MENG Wen, YUAN Wenyi, WANG Lincai, WANG Xiaoyan, ZHANG Chenglong, BAI Jianfeng, WANG Jingwei. Influence of mechanical activation on the leaching kinetics of yttrium from scrap fluorescent powder[J]. Chinese Journal of Environmental Engineering, 2019, 13(6): 1410-1416. doi: 10.12030/j.cjee.201810007
Citation: NIE Zhenglin, MENG Wen, YUAN Wenyi, WANG Lincai, WANG Xiaoyan, ZHANG Chenglong, BAI Jianfeng, WANG Jingwei. Influence of mechanical activation on the leaching kinetics of yttrium from scrap fluorescent powder[J]. Chinese Journal of Environmental Engineering, 2019, 13(6): 1410-1416. doi: 10.12030/j.cjee.201810007
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机械活化对废荧光粉中钇浸出动力学的影响

  • 1.

    上海第二工业大学环境与材料工程学院，上海 201209

  • 2.

    上海第二工业大学，上海电子废弃物资源化协同创新中心，上海 201209

  • 基金项目:

    上海第二工业大学飞跃计划项目A01GY18EX04

    上海第二工业大学学科建设项目XXKZD1602

    上海第二工业大学研究生基金项目EGD17YJ0048上海第二工业大学飞跃计划项目(A01GY18EX04)

    上海第二工业大学学科建设项目(XXKZD1602)

    上海第二工业大学研究生基金项目(EGD17YJ0048)

Influence of mechanical activation on the leaching kinetics of yttrium from scrap fluorescent powder

  • 1.

    School of Environmental and Materials Engineering, Shanghai Polytechnic University, Shanghai 201209, China

  • 2.

    Shanghai Collaborative Innovation Centre for WEEE Recycling, Shanghai Polytechnic University, Shanghai 201209, China

  • Fund Project:

  • 摘要: 针对废荧光粉进行机械活化预处理以提高其反应活性，实现其中金属钇(Y)在盐酸溶液中的高效浸出。通过浸出实验，考察了浸出温度以及盐酸初始浓度对废荧光粉中钇浸出效果的影响。废荧光粉经机械活化预处理后，在较低的温度和盐酸初始浓度条件下，钇浸出速率均显著提高。在球磨转速550 r·min-1、球料比41∶1、球磨时间60 min条件下，经机械活化预处理后，废荧光粉的表观活化能和反应级数由原始样品的41.9 kJ?mol-1和0.69降至10.9 kJ?mol-1和0.23。
    Abstract: Mechanical activation was used as a pretreatment process to improve the reaction activity of scrap fluorescent powder, which could result in the high-efficient leaching of yttrium element (Y) from this powder in hydrochloric acid solution. The influences of leaching temperature and initial hydrochloric acid concentration on the leaching effect of Y were investigated through leaching experiments. After mechanical activation pretreatment, Y leaching rates could be improved obviously at low temperature and acid concentration. When scrap fluorescent powder was mechanically activated for 60 min at ball milling speed of 550 r·min-1 and ball to powder weight ratio of 41∶1, the apparent activation energy and reaction order decreased from 41.9 kJ?mol-1 and 0.69 of original powder to 10.9 kJ?mol-1 and 0.23, respectively.
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  • 刊出日期:  2019-06-18

机械活化对废荧光粉中钇浸出动力学的影响

  • 1. 上海第二工业大学环境与材料工程学院，上海 201209
  • 2. 上海第二工业大学，上海电子废弃物资源化协同创新中心，上海 201209
基金项目:

上海第二工业大学飞跃计划项目A01GY18EX04

上海第二工业大学学科建设项目XXKZD1602

上海第二工业大学研究生基金项目EGD17YJ0048上海第二工业大学飞跃计划项目(A01GY18EX04)

上海第二工业大学学科建设项目(XXKZD1602)

上海第二工业大学研究生基金项目(EGD17YJ0048)

摘要: 针对废荧光粉进行机械活化预处理以提高其反应活性，实现其中金属钇(Y)在盐酸溶液中的高效浸出。通过浸出实验，考察了浸出温度以及盐酸初始浓度对废荧光粉中钇浸出效果的影响。废荧光粉经机械活化预处理后，在较低的温度和盐酸初始浓度条件下，钇浸出速率均显著提高。在球磨转速550 r·min-1、球料比41∶1、球磨时间60 min条件下，经机械活化预处理后，废荧光粉的表观活化能和反应级数由原始样品的41.9 kJ?mol-1和0.69降至10.9 kJ?mol-1和0.23。

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