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›› 2011, Vol. 11 ›› Issue (4): 567-572.

• 反应与分离 • 上一篇    下一篇

含锰冶炼粉尘的加压硫酸浸出

谢红艳 王吉坤 李天杰 马进 杨世诚 纳吉信 张学文   

  1. 云南省红河州建水县临安镇南营寨云南建水锰矿有限责任公司科技部 云南冶金集团总公司 云南建水锰矿有限责任公司 云南建水锰矿有限责任公司 云南建水锰矿有限责任公司 云南建水锰矿有限责任公司 云南建水锰矿有限责任公司
  • 收稿日期:2011-05-20 修回日期:2011-07-21 出版日期:2011-08-20 发布日期:2011-08-20
  • 通讯作者: 谢红艳

Pressure Leaching of Manganese-containing Dust from Smelting with Sulfuric Acid

XIE Hong-yan WANG Ji-kun LI Tian-jie MA Jin YANG Shi-cheng NA Ji-xin ZHANG Xue-wen   

  1. The Faculty of Metallurgical and Energy Engineering,Kunming University of Science and Technology The Faculty of Metallurgical and Energy Engineering,Kunming University of Science and Technology Yunnan Jianshui manganese mine limited liability Company Yunnan Jianshui manganese mine limited liability Company Yunnan Jianshui manganese mine limited liability Company Yunnan Jianshui manganese mine limited liability Company Yunnan Jianshui manganese mine limited liability Company
  • Received:2011-05-20 Revised:2011-07-21 Online:2011-08-20 Published:2011-08-20
  • Contact: XIE Hong-yan

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摘要： 研究了含锰收尘灰加压浸出的影响因素. 结果表明，优化浸出工艺条件为：液固比5 mL/g，初始硫酸浓度120 g/L，浸出温度120℃，体系压力0.8 MPa，锰收尘灰/硫铁矿质量比1:0.5，浸出时间2 h，搅拌转速500 r/min. 在该条件下，Mn浸出率约96.1%，Fe浸出率仅7%左右，终酸残余率约34.9%. 该浸出工艺效果良好且稳定，Mn与其他杂质元素的分离效果良好，可取得常压浸出条件难以取得的理想浸出效果.

关键词: 含锰收尘灰, 加压浸, 锰, 铁, 终酸

Abstract: The pressure leaching of manganese smelter dust with air as pressurized gas in a sulfuric acid medium was studied. Optimum operating parameters were established as follows: ratio of liquid to solid 5 mL/g, initial sulfuric acid concentration 120 g/L, leaching temperature 120℃, partial air pressure 0.8 MPa, mass ratio of manganese smelter dust to pyrite 1:0.5, leaching time 2 h, and agitation speed of 500 r/min. Under these conditions, the leaching rates of Mn and Fe are 96.1% and 7%, and the residual rate of final acid is about 34.9%. Manganese can be effectively separated from impurities such as iron in the leaching process. The pressure leaching technique of manganese smelter dust is further proved to be effective and stable.

Key words: manganese-containing smelter dust, pressure leaching, manganese, iron, final acid

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