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投稿时间:2011-07-18 网络发布日期:2011-12-30
投稿时间:2011-07-18 网络发布日期:2011-12-30
中文摘要: 在沸腾炉中,利用弱氧焙烧使As和S从硫化锌精矿中脱除,再经过二次燃烧室使As和S得到充分燃烧后全部进入烟气,烟气经余热锅炉和电收尘脱除大部分烟尘,通过收砷设备冷凝沉降后得到As2O3粗烟尘。最佳条件表明,As2O3回收率在98%以上,粗烟尘经砷提纯装置使As2O3含量达到98%以上。提纯过程中的砷渣返回原料工序循环使用,烟气经脱砷处理后用于制酸,整个生产过程为全封闭自动化流水线作业。
Abstract:In industrial-scale experiment, zinc sulfide concentrate was roasted in fluidized bed furnace in low oxidizing atmospheres and temperature, the waste gas was oxidized sufficiently after second combustion, so As and S entranced into waste gas completely and recovered after dust collecting. The results show that arsenic slag is purified to 98% in the third combustion, and the recovery of As2O3 is more than 98%. The arsenic slag is cycling used by getting back to dosing process, the waste gas is used to produce acid after de-arsenic treatment. The whole productive process is enclosed totally and automatically assembly line work.
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基金项目:广西自然科学基金项目(2010GXNSFA013053 );广西壮族自治区科技厅科技攻关与新产品试制课题(桂科攻1099044);广西大学科研基金项目(M313001)
| Author Name | Affiliation |
| LI Xu-guang1, TAN Yong-ren2, LIANG Duo-qiang3, ZHU Zhi-yong 2 | LI Xu-guang1, TAN Yong-ren2, LIANG Duo-qiang3, ZHU Zhi-yong 2 |
引用文本:
李旭光1,谭永仁2,梁铎强3,朱志勇2.从硫化锌精矿中直接回收砷[J].有色金属(冶炼部分),2012(1):13-15.
LI Xu-guang1, TAN Yong-ren2, LIANG Duo-qiang3, ZHU Zhi-yong 2.Arsenic Direct Recovery from Arsenic-Bearing Zinc Sulfide Concentrates[J].Nonferrous Metals (Extractive Metallurgy),2012(1):13-15.
李旭光1,谭永仁2,梁铎强3,朱志勇2.从硫化锌精矿中直接回收砷[J].有色金属(冶炼部分),2012(1):13-15.
LI Xu-guang1, TAN Yong-ren2, LIANG Duo-qiang3, ZHU Zhi-yong 2.Arsenic Direct Recovery from Arsenic-Bearing Zinc Sulfide Concentrates[J].Nonferrous Metals (Extractive Metallurgy),2012(1):13-15.

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