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黄金科学技术 ›› 2017, Vol. 25 ›› Issue (5): 135-139.doi: 10.11872/j.issn.1005-2518.2017.05.135

• 冶炼技术与装备研发 • 上一篇    下一篇

不同胶凝材料对氰化废渣的固化性能研究

涂玉波 1,2,韩培伟 1,付国燕 1,2,魏连启 1,仉小猛 1,于博 1,2,叶树峰1*   

  1. 1.中国科学院过程工程研究所,多相复杂系统国家重点实验室,北京   100190;
    2.中国科学院大学,北京   100049
  • 收稿日期:2017-07-11 修回日期:2017-08-26 出版日期:2017-10-30 发布日期:2018-02-12
  • 通讯作者: 叶树峰(1966-),男,江西余干人,研究员,从事冶金反应过程研究工作。sfye@ipe.ac.cn
  • 作者简介:涂玉波(1975-),男,江西上饶人,高级工程师,从事固体废弃物再生利用与资源化研究工作。ybtu@ipe.ac.cn
  • 基金资助:

    国家科技计划“863”项目“贵金属化工生产过程重金属污染控制与资源化”(编号:2013AA065703)资助

Study on the Curing Properties of Different Cementitious Materials for Cyanide Waste Residue

TU Yubo 1,2,HAN Peiwei 1,FU Guoyan 1,2,WEI Lianqi 1,ZHANG Xiaomeng 1,YU Bo 1,2,YE Shufeng 1   

  1. 1.State Key Laboratory of Multiphase Complex Systems,Institute of Process Engineering,Chinese Academy of Sciences,Beijing   100190,China;
    2.University of Chinese Academy of Sciences,Beijing   100049,China
  • Received:2017-07-11 Revised:2017-08-26 Online:2017-10-30 Published:2018-02-12

摘要:

采用胶凝材料固化技术,以不同类型胶凝材料为固化剂,对氰化废渣进行固化处理。结果表明:与硅酸盐水泥(PC)、铝酸盐水泥(AC)和硫铝酸盐水泥(SAC)相比,改性硫氧镁水泥(MOC)固化剂所得固化体的强度性能最优;固化体中CN-的浸出率大小顺序为RAC>RSAC>RPC>RMOC,固化体中CN-的累积浸出分数AC>SAC>PC>MOC;在MOC固化体系中,部分氰化废渣还参与了胶结反应,一方面促进了强度的增长,另一方面阻碍了CN-的浸出。

关键词: 胶凝材料, 氰化废渣, 强度性能, 浸出, 固化处理, 综合回收技术

Abstract:

The solidification of cyanide slag was carried out by different cementing materials as solidification agents.The results showed that the compressive strength of solidified body by modified magnesium oxysulfate cement(MOC) was better than those by portland cement(PC),aluminate cement(AC) and sulpho aluminate cement(SAC). The leaching rates of CN- from solidified bodies were in the order that RAC>RSAC>RPC>RMOC,and the accumulative leaching fractions of CN- from solidified bodies were similar to the leaching rates of CN-.Part of cyanide slag participated in the cementing reaction in MOC solidified system,which could increase the strength of solidified body and inhibit the leaching of CN-.

Key words: cementing materials, cyanide slag, strength performance, leaching, solidification treatment, com- prehensive recovery technology

中图分类号: 

  • P596

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