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铬渣中Cr(Ⅵ)的浸出及强化研究

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林晓, 曹宏斌, 李玉平, 戴昊波, 惠建斌. 铬渣中Cr(Ⅵ)的浸出及强化研究[J]. 环境化学, 2007, 26(6): 805-809.
引用本文: 林晓, 曹宏斌, 李玉平, 戴昊波, 惠建斌. 铬渣中Cr(Ⅵ)的浸出及强化研究[J]. 环境化学, 2007, 26(6): 805-809.
shu
LIN Xiao, CAO Hong-bin, LI Yu-ping, DAI Hao-bo, HUI Jian-bin. Cr(Ⅵ) LEACHING BEHAVIOR AND INTENSIFIED TREATMENTS OF CHROMITE ORE PROCESSING WASTE[J]. Environmental Chemistry, 2007, 26(6): 805-809.
Citation: LIN Xiao, CAO Hong-bin, LI Yu-ping, DAI Hao-bo, HUI Jian-bin. Cr(Ⅵ) LEACHING BEHAVIOR AND INTENSIFIED TREATMENTS OF CHROMITE ORE PROCESSING WASTE[J]. Environmental Chemistry, 2007, 26(6): 805-809.
shu

铬渣中Cr(Ⅵ)的浸出及强化研究

  • 1.

    中国科学院过程工程研究所, 北京, 100080;

  • 2.

    中国科学院研究生院, 北京, 100049

  • 基金项目:

    国家高技术研究发展计划(863计划)项目(2006AA06Z369)

Cr(Ⅵ) LEACHING BEHAVIOR AND INTENSIFIED TREATMENTS OF CHROMITE ORE PROCESSING WASTE

  • 1.

    Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100080, China;

  • 2.

    Graduate University of Chinese Academy of Sciences, Beijing, 100049, China

  • Fund Project:

  • 摘要: 采用ICP-OES,XRD,SEM,EDX和电导率在线监测等手段分析铬渣浸取前后的变化及各种元素浸出量随pH值的变化,考察了添加化学悬浮剂、浸取体系和超声处理对铬渣中Cr(Ⅵ)浸出行为的强化作用.结果表明,浸取过程基本不改变铬渣的结构;pH为5—7,使用合适的浸取介质有利于Cr(Ⅵ)的溶出,通过添加化学悬浮剂APG650可提高浸取效率3倍,超声处理可提高浸取效率70多倍.
    Abstract: The COPR (chromite ore processing waste)’s structure showed mainly the same before and after leaching with water, which experimentally studied using methods of ICP-OES, XRD, SEM, EDX, COM(conductivity online-measurement). This paper also studied leaching behaviors of elements in COPR in different pH values, investigated the effects of leaching reagent and some novel intensified treatments, such as ultrasonic treatment and adding chemical suspension additives. The results shows pH 5—7, NaAc/HAc leaching reagent,ultrasonic treatment and chemical suspension additives could enhance the leaching efficiency a lot.
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  • [1] 丁翼,纪柱,铬化合物生产与应用[M] .北京:化学工业出版社,2003
    [2] 曹宏斌,张懿,生物直接解毒铬渣中六价铬的铬渣处理方法[P] .中国专利,200410070143.6(申请号)
    [3] 戴昊波,曹宏斌,李玉平等,酸浸-生物法处理铬渣[J] .过程工程学报,2006,6(1):55-58
    [4] 龙腾发,柴立元,郑粟等,生物法解毒六价铬技术的应用现状与进展[J] .安全与环境工程,2004,11(3):22-25,30
    [5] Weng C H,Huang C P,Allen H E et al.,Chromium Leaching Behavior in Soil Derived from Chromite Ore Processing Waste[J] .The Science of the Total Environment.1994,154 (1):71-86
    [6] Geelhoed J S,Meeussen J C L,Hillier S et al.,Identification and Geochemical Modeling of Process Controlling Leaching of Cr(Ⅵ)and Other Major Elements from Chromite Ore Processing Residue[J] .Geochimica et Cosmochimica Acta,2002,66 (22):3927-3942
    [7] 李琳,冯易君,黄淦泉,氢氧化铝共沉淀浮选石墨炉原子吸收测水中铬(Ⅲ)与铬(Ⅵ)[J] .光谱学与光谱分析,1998,18(3):354-358
    [8] 冯利,汤鸿霄,铝盐最佳混凝形态及最佳pH范围研究[J] .环境化学,1998,17(2):163-169
    [9] 龙腾发,柴立元,傅海洋等,铬渣浸出毒性试验研究[J] .环境工程,2004,22(6):71-73
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出版历程
  • 收稿日期:  2007-02-27
林晓, 曹宏斌, 李玉平, 戴昊波, 惠建斌. 铬渣中Cr(Ⅵ)的浸出及强化研究[J]. 环境化学, 2007, 26(6): 805-809.
引用本文: 林晓, 曹宏斌, 李玉平, 戴昊波, 惠建斌. 铬渣中Cr(Ⅵ)的浸出及强化研究[J]. 环境化学, 2007, 26(6): 805-809.
shu
LIN Xiao, CAO Hong-bin, LI Yu-ping, DAI Hao-bo, HUI Jian-bin. Cr(Ⅵ) LEACHING BEHAVIOR AND INTENSIFIED TREATMENTS OF CHROMITE ORE PROCESSING WASTE[J]. Environmental Chemistry, 2007, 26(6): 805-809.
Citation: LIN Xiao, CAO Hong-bin, LI Yu-ping, DAI Hao-bo, HUI Jian-bin. Cr(Ⅵ) LEACHING BEHAVIOR AND INTENSIFIED TREATMENTS OF CHROMITE ORE PROCESSING WASTE[J]. Environmental Chemistry, 2007, 26(6): 805-809.
shu

铬渣中Cr(Ⅵ)的浸出及强化研究

  • 1.  中国科学院过程工程研究所, 北京, 100080;
  • 2.  中国科学院研究生院, 北京, 100049
  • 收稿日期:  2007-02-27
基金项目:

国家高技术研究发展计划(863计划)项目(2006AA06Z369)

摘要: 采用ICP-OES,XRD,SEM,EDX和电导率在线监测等手段分析铬渣浸取前后的变化及各种元素浸出量随pH值的变化,考察了添加化学悬浮剂、浸取体系和超声处理对铬渣中Cr(Ⅵ)浸出行为的强化作用.结果表明,浸取过程基本不改变铬渣的结构;pH为5—7,使用合适的浸取介质有利于Cr(Ⅵ)的溶出,通过添加化学悬浮剂APG650可提高浸取效率3倍,超声处理可提高浸取效率70多倍.

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