无机盐工业
主管:中海油天津化工研究设计院有限公司
主办:中海油天津化工研究设计院有限公司
   中海油炼油化工科学研究院(北京)有限公司
   中国化工学会无机酸碱盐专业委员会
ISSN 1006-4990 CN 12-1069/TQ

无机盐工业 ›› 2012, Vol. 44 ›› Issue (7): 47-.

• 论文 • 上一篇    下一篇

铬铁渣中水溶性六价铬浸取研究

王树轩1,李 宁1,李 波1,李玉龙1,2   

  1. 1.中国科学院青海盐湖研究所,青海西宁 810008;2. 中国科学院研究生院
  • 发布日期:2012-07-11

Study on leaching water-soluble Cr(Ⅵ) from ferrochrome slag

Wang Shuxuan1,Li Ning1,Li Bo1,Li Yulong1,2   

  1. 1.Qinghai Institute of Salt Lakes,Chinese Academy of Sciences,Xining 810008,China;
    2.Graduate University,Chinese Academy of Sciences
  • Online:2012-07-11

摘要: 研究了铬铁渣中水溶性六价铬的浸取条件,确定了最佳的浸取条件:去离子水与铬铁渣的质量比为8,温度为80 ℃,采用回旋振荡方式,振荡频率为150 r/min,浸取时间为5 h。在此条件下测得的水溶性六价铬的量为每克铬铁渣中含2.78 μg,含量极低。确定铬铁渣中水溶性铬的浸出条件对评价铬铁渣对环境的危害提供了实验依据。

关键词: 铬铁渣, 水溶性, 浸取, Cr6+

Abstract: Leaching conditions of water-soluble Cr6+ in ferrochrome slag were investigated.Optimal leaching conditions were confirmed as follows:mass ratio of deionized water to ferrochrome slag was 8,leaching temperature was 80 ℃, frequency of swing oscillator was 150 r/min,and leaching time was 5 h.Under those conditions,the amount of water-soluble Cr6+ in ferrochrome slag was as low as 2.758 μg per gram.Confirmation of leaching conditions of water-soluble Cr6+ in ferrochrome slag provided experimental basis for the evaluation of hazard of ferrochrome slag to the environment.

Key words: ferrochrome slag, water-solubility, leaching, Cr6+

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