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投稿时间：2015-09-09 修订日期：2015-09-10 录用日期：2015-09-11 网络发布日期：2016-01-21
投稿时间：2015-09-09 修订日期：2015-09-10 录用日期：2015-09-11 网络发布日期：2016-01-21
中文摘要: 扩大试验通过电炉熔融氯化—烟气洗涤连续运转，考察物料性质、氯化钙添加、气氛等对氰化尾渣中金挥发率的影响。结果表明，在进炉氰化尾渣含水≤6%、氯化钙添加量7%~10%、氧化气氛条件下，氰化尾渣采用电炉熔融氯化挥发提金，渣含金可降至0.6 g/t，砷可降至0.25%以下，铜、铅、锌等含量均可降至0.05%以下。在实际工业生产和设计中，建议采取干式进料、减少热损、自焙阳极等措施减少电耗和电极消耗，同时采取多级洗涤+电除雾器等措施来保障烟气中金属的回收。
Abstract:The effects of raw material properties, calcium chloride addition and reaction atmosphere on volatilization rate of gold from cyanide residue were investigated via continuous expanding test by molten chlorination in electric furnace and flue gas washing. The results show that gold content in residual slag is 0.6 g/t, arsenic content is 0.25% below, and contents of Cu, Pb, Zn are all below 0.05% under the optimum conditions including moisture content of raw material of ≤6%, calcium chloride addition of 7%~10%, and oxidizing atmosphere. For industrial application, it is proposed to reduce power consumption and anode consumption by means of dry-type feedstock, heat loss reduction, and self baking anode, and to ensure metals recovery in flue gas with application of multistage scrubbing and demister.
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基金项目:国家高技术研究发展计划（863计划）项目（2011AA06A104）
| 作者 | 单位 | |
| 常耀超* | 北京矿冶研究总院冶金所 | chang_yc@bgrimm.com |
| 王云 | 北京矿冶研究总院 | |
| 刘大学 | 北京矿冶研究总院冶金所 |
| Author Name | Affiliation | |
| Chang Yaochao | Beijing General Research Institute of Mining Metallurgy | chang_yc@bgrimm.com |
| wang yun | ||
| liu daxue |
引用文本：
常耀超,王云,刘大学.氰化尾渣熔融氯化提金扩大试验[J].有色金属（冶炼部分）,2016(2):43-45.
Chang Yaochao,wang yun,liu daxue.Expanding Test on Gold Recovery from Cyanide Residue by Molten Chlorination[J].Nonferrous Metals (Extractive Metallurgy),2016(2):43-45.
常耀超,王云,刘大学.氰化尾渣熔融氯化提金扩大试验[J].有色金属（冶炼部分）,2016(2):43-45.
Chang Yaochao,wang yun,liu daxue.Expanding Test on Gold Recovery from Cyanide Residue by Molten Chlorination[J].Nonferrous Metals (Extractive Metallurgy),2016(2):43-45.
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