应用化学热力学软件分析了软锰矿浆脱硫的反应机理,并进行了实验验证,确定该体系的反应有2种途径:MnO2与SO2直接发生氧化还原反应生成MnSO4,反应式为MnO2+SO2=MnSO4,是脱硫体系的主要反应;SO2被氧化成SO3后,与H2O生成H2SO4,反应式为SO2+1/2O2+H2O=H2SO4,是脱硫体系的副反应.副反应的存在影响了软锰矿脱硫主反应的正常进行.研究结果为该工艺过程可行性研究提供理论和实践依据.
参考文献
| [1] | 蔡九菊,吴复忠,李军旗,张金柱.高炉-转炉流程生产过程的硫素流分析[J].钢铁,2008(07):91-95. |
| [2] | 吴复忠 .钢铁生产过程的硫素流分析及软锰矿、菱锰矿烟气脱硫技术研究[D].东北大学,2008. |
| [3] | 廖继勇,毕学工,熊玮,周少丰,姜广森.关于烧结废气脱硫技术发展现状的分析[J].南方金属,2006(01):1-3,8. |
| [4] | 朱晓帆,蒋文举.软锰矿脱除烟气中SO2的研究及进展[J].中国锰业,2001(02):10-12. |
| [5] | 黄妍,王治军,童志权.软锰矿浆脱除烟气中SO2的研究[J].环境工程,1998(04):43-46. |
| [6] | Abbruzzese C .Percolation Leaching of Manganese Ore by Aqueous Sulfur Dioxide[J].Hydrometallurgy,1990,25:85. |
| [7] | Herring A P;Ravitz S F .Rate of Dissolution of Manganese Dioxide in Sulfurous Acid[J].Transactions AIME,1965,231:191. |
| [8] | Higginson W C E;Marshall J W .Equivalence Change in Oxidation-Reduction Reactions in Solutions:Some Aspects of the Oxidation of Sulphurous Acid[J].Journal of the Chemical Society,1957,10:447. |
| [9] | Kanungo S B;Das R P .Extraction of Metals From Manganese Nodules of the Indian Ocean by Leaching in Aqueous Solutions of Sulphur Dioxide[J].Hydrometallurgy,1988,20:135. |
| [10] | Nicol M J;La'zaro I .The Role of EH Measurements in the Interpretation of the Kinetics and Mechanisms of the Oxidation and Leaching of Sulphide Minerals[J].Hydrometallurgy,2002,63:15. |
| [11] | Sillen L G;Martell A E .Stability Constants of Metal Complexes[J].Spec Publ Chem SOc,1964,17:278. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%