| 氧压浸出处理低铁闪锌矿 |
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| 引用本文： | 古岩,张廷安,吕国志,牟望重,豆志河. 氧压浸出处理低铁闪锌矿[J]. 有色金属(冶炼部分), 2011, 0(10): 1-5. DOI: 10.3969/j.issn.1007-7545.2011.10.001 |
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| 作者姓名： | 古岩 张廷安 吕国志 牟望重 豆志河 |
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| 作者单位： | 东北大学材料与冶金学院,多金属共生矿生态化利用教育部重点试验室,沈阳110819 |
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| 基金项目： | 国家自然科学基金资助项目(51004033, 50974035, 51074047)；国家“十一五”科技支撑计划项目(2008BAB34B01)；教育部高校博士点专项基金项目（20050145029）；辽宁省优秀青年科技人才基金项目（2005221012） |
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| 摘 要： | 以低铁闪锌矿精矿为原料,采用氧压浸出技术进行处理。绘制了150℃、1.0 MPa的ZnS-H2O系电位-pH图。通过单因素试验确定各因素的影响趋势,采用ICP、XRD、XRF和BET等检测方法对浸出液和浸出渣进行分析表征,确定最佳浸出条件为:精矿粒度-0.075 mm～+0.055 mm、浸出温度150℃、氧分压0.8 MPa、初酸浓度15%、浸出时间90 min、浸出液固比6∶1～8∶1、搅拌转速500 r/min、添加剂用量1.0%。在此条件下,锌浸出率在97%以上,硫转化率达到90%,实现了精矿中锌的充分浸出与渣中元素硫的富集。
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| 关 键 词： | 低铁闪锌矿 氧压浸出 电位-pH图 浸出率 元素硫 |
| 收稿时间： | 2011-05-23 |
Oxygen Pressure Leaching on Low Iron Sphalerite |
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| GU Yan,ZHANG Ting-an,LV Guo-an,MOU Wang-zhong and DOU Zhi-he. Oxygen Pressure Leaching on Low Iron Sphalerite[J]. Nonferrous Metals(Extractive Metallurgy), 2011, 0(10): 1-5. DOI: 10.3969/j.issn.1007-7545.2011.10.001 |
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| Authors: | GU Yan ZHANG Ting-an LV Guo-an MOU Wang-zhong DOU Zhi-he |
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| Affiliation: | Key Laboratory of Ecological Utilization of Multi-metal Intergrown Ores of Ministry of Education, School of Materials and Metallurgy, Northeastern University;Key Laboratory of Ecological Utilization of Multi-metal Intergrown Ores of Ministry of Education, School of Materials and Metallurgy, Northeastern University;Key Laboratory of Ecological Utilization of Multi-metal Intergrown Ores of Ministry of Education, School of Materials and Metallurgy, Northeastern University;Key Laboratory of Ecological Utilization of Multi-metal Intergrown Ores of Ministry of Education, School of Materials and Metallurgy, Northeastern University;Key Laboratory of Ecological Utilization of Multi-metal Intergrown Ores of Ministry of Education, School of Materials and Metallurgy, Northeastern University |
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| Abstract: | Oxygen pressure leaching process was applied to treat low iron sphalerite concentrate.Eh-pH diagram of ZnS-H2O system at 150 ℃ and 1.0 MPa was drew.The single factor experiments were performed in autoclave,the leachate and residue were characterized by ICP,XRD,XRF and BET.The results indicate when particle size is-0.075 mm～+0.055 mm,temperature is 150 ℃,oxygen partial pressure is 0.8 MPa,initial acid concentration is 15%,leaching time is 90 min,leaching liquid-solid ratio is 6∶1～8∶1,stirring speed is 500 r/min,and additive amount is 1.0%,extraction rate of zinc is above 97% and conversion rate of sulfur is about 90%.Sufficiently leaching of zinc and enriching of element sulfur in the residue were achieved via the process. |
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| Keywords: | Low iron sphalerite Oxygen pressure leaching Eh-pH diagram Extraction ratio Element sulfur |
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