斑铜矿在酸性溶液中的浸出动力学行为

doi:10.3969/j.cnki.jdxb.2016.02.013

吉首大学学报（自然科学版）

斑铜矿在酸性溶液中的浸出动力学行为

徐佳键，刘志雄，戴冬阳，汤连东，向延鸿，邹晓勇

(1.吉首大学化学化工学院，湖南吉首 416000；2.吉首大学物理与机电工程学院，湖南吉首 416000；3.湖南省211计划锰锌钒工业技术协同创新中心（吉首大学），湖南吉首 416000)

出版日期:2016-03-25 发布日期:2016-05-11
通讯作者: 刘志雄（1973—），男，湖南新化人，吉首大学物理与机电工程学院高级实验师，博士，主要从事湿法冶金研究.
基金资助:
湖南省自然科学基金资助项目(2015JJ2115)；湖南省教育厅重点资助项目(15A151)；湖南省高等院校科学与技术研究团队(JSU001)；湖南省教育厅教改课题资助项目(2015228)；吉首大学教改重点资助项目(2015003)；吉首大学大学生研究性学习和创新性实验资助项目(JSUCX-2013-04；JSUCX-2014-73)

Leaching Kinetics of Bornite in Acid Solution

XU Jiajian，LIU Zhixiong,DAI Dongyang,TANG Liandong，XIANG Yanhong,ZOU Xiaoyong

(1.College of Chemistry and Chemical Engineering，Jishou University，Jishou 416000，Hunan China；2.College of Physics and Electromechanical Engineering，Jishou University，Jishou 416000,Hunan China；3.Collaborative Innovation Center of Manganese-Zinc-Vanadium Industrial Technology (the 2011 Plan of Hunan Province)，Jishou University，Jishou 416000,Hunan China)

Online:2016-03-25 Published:2016-05-11

摘要/Abstract

摘要：

以斑铜矿为研究对象，在H₂SO₄酸性体系中，以NaS₂O₈为氧化剂，详细考察浸出时间、温度、矿物尺寸、液固比、H₂SO₄浓度和NaS₂O₈浓度对铜浸出率的影响.浸出行为表明，斑铜矿浸出动力学行为符合固体膜层的界面传质和扩散的混合控制，表观反应活化能为33.97 kJ/mol，浸出动力学方程为（ln(1-x)）/3-1+(1-x)^-1/3=k_mt.

关键词： 斑铜矿, 酸浸, 溶解动力学

Abstract:

The leaching of bornite was investigated in the sulfuric acid solution.The effects of different factors including leaching time，reaction temperature，particle size，the liquid-solid ratio，sulfuric acid and sodium sulfate concentration were investigated in details on the copper leaching rate of bornite.The leaching behaviors show that the copper leaching process is controlled by the mixed kinetic shrinking core model affected by both the interface transfer and diffusion through the solid layer.The reaction apparent activation energy was determined to be 33.97 kJ/mol，and the equation of kinetics can be written as：（ln(1-x)）/3-1+(1-x)^-1/3=k_mt.

Key words: Bornite, acid leaching, dissolution kinetics

徐佳键，刘志雄，戴冬阳，汤连东，向延鸿，邹晓勇. 斑铜矿在酸性溶液中的浸出动力学行为[J]. 吉首大学学报（自然科学版）, DOI: 10.3969/j.cnki.jdxb.2016.02.013.

XU Jiajian，LIU Zhixiong,DAI Dongyang,TANG Liandong，XIANG Yanhong,ZOU Xiaoyong. Leaching Kinetics of Bornite in Acid Solution[J]. Journal of Jishou University（Natural Sciences Edition), DOI: 10.3969/j.cnki.jdxb.2016.02.013.

参考文献

[1] 张永德，李皊值，阮仁满.黄铜矿的湿法冶金工艺研究进展[J].稀有金属，2005，29(1)：83-87.
[2] PRICE D C，CHILTON J P.The Anodic Reactions of Bornite in Sulphuric Acid Solution[J].Hydrometallurgy，1981，7(7)：117-133.
[3] PESIC B,OLSON F A.Leaching of Bornite in Acidified Ferric Chloride Solutions[J].Metallurgical and Materials Transaction B，1983，14(4)：577-587.
[4] PESIC B，OLSON F A.Dissolution of Bornite in Sulfuric Acid Using Oxygen as Oxidant[J].Hydrometallurgy，1984，12(2)：195-215.
[5] ARCE E M，GONZALEZ I.A Comparative Study of Electrochemical Behavior of Chalocopyrite,Chalcocite and Bornite in Sulfuric Acid Solution[J].International Journal of Mineral Processing，2002，67(1/2/3/4)：17-28.
[6] WANG Jun，QIN Wenqing，ZHANG Yansheng,et al.Bacterial Leaching of Chalcopyrite and Bornite with Native Bioleaching Microorganism[J].Transaction of Nonferrous Metal Society of China，2008，18(6)：1 468-1 472.
[7] BEVILAQUA D，ACCIARI H A，ARENA F A，et al.Utilization of Electrochemical Impedance Spectroscopy for Monitoring Bornite (Cu5FeS4) Oxidation by Acidithiobacillus Ferrooxidans[J].Minerals Engineering，2009，22(3)：254-262.
[8] BEVILAQUA D,GARCIA O，TUOVINEN O H.Oxidative Dissolution of Bornite by Acidithiobacillus Ferrooxidans[J].Process Biochemistry，2010，45(1):101-106.
[9] RAO K S,RAO H S.A New Look at Characterisation and Oxidative Ammonia Leaching Behaviour of Multimetal Suphides[J].Minerals Engineering，1998，11(11)：1 011-1 024.
[10] RAO K S，DAS R P，MUKNDA P G，et al.Use of X-Ray Diffraction in a Study of Ammonia Leaching of Multimetal Sulfides[J].Metallurgical and Materials Transaction B，1993,24(24)：937-945.
[11] GHOSH M K，DAS R P，BISWAS A K.Oxidative Ammonia Leaching of Sphalerite Part II：Cu(II)-Catallyzed Kinetics[J].International Journal of Mineral Processing，2003，70(1/2/3/4)：221-234.
[12] 华一新.冶金过程动力学导论[M].北京:冶金工业出版社，2004：188-195.
[13] DICKINSON C F,HEAL G R.Solid-Liquid Diffusion Controlled Rate Equations[J].Thermochimica Acta，1999，340-341(99)：89-103.

斑铜矿在酸性溶液中的浸出动力学行为

Leaching Kinetics of Bornite in Acid Solution

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 0

编辑推荐

Metrics

本文评价