.980 北京科技大学学报 第30卷 图6.图6中直线的斜率即为一E/R,由此计算得表 [3]Qi MJ.The status and prospects of vanadium leaching from stone 观活化能为50.88 kJ-mol一1,大于42 kJ-mol-1,为 coal.Hydrometall Chin.1999.72(4):1 (漆明鉴.从石煤中提钒现状及前景,湿法冶金,1999,72(4): 化学反应控制,和前面的分析结果吻合· -10.0 [4]Ma S Q,Liu S S.Review of vanadium extraction from stone -10.5 coal.Hunan Nonferrous Met.1998,14(4):21 (马士强,刘世森.石煤提钒工艺评述.湖南有色金属,1998, -11.0 14(4):21) -15 斜率-6.12×103 [5]Feng Q M.He DS,Zhang G F,et al.Effect of vanadium oxida- tion and conversion on vanadium leaching in extraction process of -12.0H vanadium from stone coal.Chin J Nonferrous Met,2007.17 (8):1349 -12.5 (冯其明,何东升,张国范,等.石煤提钒过程中钒氧化和转化 -13. 对钒浸出的影响.中国有色金属学报,2007,17(8):1349) 2.6 2.7 2.82.9 3.0 3.1 T-/103K [6]Deng Q Y.Liu S Y.New process for extraction of vanadium from stone coal.Rare Met Cem Carbides.1993.2:27 图6浸出反应的Arrhenius图 (邓庆云,刘松英.石煤钠化培烧、酸浸、离子交换提钒新工艺 Fig.6 Arrhenius plot of leaching reaction 的试验研究稀有金属与硬质合金,1993.2:27) [7]Zou X Y,Ouyang YZ.Peng Q J.et al.Study on the process of 3结论 producing vanadium pentoxide from stone coal vanadium mine by no"salt-roasting and acid leaching.Chem World.2001.42(3): (1)H2S04浸出石煤钠化焙烧料,HS04初始 117 浓度和浸出温度对钒浸出率影响显著,搅拌速度对 (邹晓勇,欧阳玉祝,彭清净,等·含钒石煤无盐培烧酸浸生产 五氧化二钒工艺的研究.化学世界,2001,42(3):117) 钒浸出率没有明显影响,提高H2$O4初始浓度和浸 [8]Lu Z L.Investigation and industrial practice on extraction of 出温度有利于钒浸出, V20sfrom stone coal containing vanadium by acid process.Hy- (2)石煤钠化焙烧料HS04浸出过程符合核收 drometall Chin.2002.21(4):175 缩模型,浸出动力学方程可用K=1一(1一)3描 (鲁兆伶.用酸法从石煤中提取五氧化二钒的试验研究与工业 述,浸出反应的表观活化能为50.88 kJ-mol-1,浸出 实践湿法治金,2002,21(4):175) 过程受化学反应步骤控制 [9]Zhang X Y.Tian X D.Leaching kinetics of extraction of vanadi- um pentoxide from stone coal.Nat Sci JXiangtan Unio,2005. 参考文献 27(2):104 (张小云,田学达·石煤提钒湿法工艺的动力学研究、湘潭大学 [1]Bin Z Y.Progress of the research on extraction of vanadium pen- 自然科学学报,2005,27(2):104) toxide from stone coal and the market of the V205.Hunan Non- [10]Li HG.Hydrometallurgy.Changsha:Central South Universi- ferrous Met,2006,22(1):16 ty Prese5,2002.74 (宾智勇.石煤提钒研究进展和五氧化二钒的市场状况,湖南 (李洪桂.湿法冶金学.长沙:中南大学出版社,2002:74) 有色金属,2006,22(1):16) [11]Abali Y,Bayca S U.Mistincik E.Kinetics of oxalic acid leach- [2]Lan Y Z,Liu J.Review of vanadium processing in China.Eng ing of tineal.Chem Eng J.2006.123(1/2):25 Sci,2005,3(3):58图6.图6中直线的斜率即为- E/R由此计算得表 观活化能为50∙88kJ·mol -1大于42kJ·mol -1为 化学反应控制和前面的分析结果吻合. 图6 浸出反应的 Arrhenius 图 Fig.6 Arrhenius plot of leaching reaction 3 结论 (1) H2SO4 浸出石煤钠化焙烧料H2SO4 初始 浓度和浸出温度对钒浸出率影响显著搅拌速度对 钒浸出率没有明显影响提高 H2SO4 初始浓度和浸 出温度有利于钒浸出. (2) 石煤钠化焙烧料 H2SO4 浸出过程符合核收 缩模型浸出动力学方程可用 Kt=1-(1-η) 1/3描 述浸出反应的表观活化能为50∙88kJ·mol -1浸出 过程受化学反应步骤控制. 参 考 文 献 [1] Bin Z Y.Progress of the research on extraction of vanadium pentoxide from stone coal and the market of the V2O5.Hunan Nonferrous Met200622(1):16 (宾智勇.石煤提钒研究进展和五氧化二钒的市场状况.湖南 有色金属200622(1):16) [2] Lan Y ZLiu J.Review of vanadium processing in China.Eng Sci20053(3):58 [3] Qi M J.The status and prospects of vanadium leaching from stone coal.Hydrometall Chin199972(4):1 (漆明鉴.从石煤中提钒现状及前景.湿法冶金199972(4): 1) [4] Ma S QLiu S S.Review of vanadium extraction from stone coal.Hunan Nonferrous Met199814(4):21 (马士强刘世森.石煤提钒工艺评述.湖南有色金属1998 14(4):21) [5] Feng Q MHe D SZhang G Fet al.Effect of vanadium oxidation and conversion on vanadium leaching in extraction process of vanadium from stone coal.Chin J Nonferrous Met200717 (8):1349 (冯其明何东升张国范等.石煤提钒过程中钒氧化和转化 对钒浸出的影响.中国有色金属学报200717(8):1349) [6] Deng Q YLiu S Y.New process for extraction of vanadium from stone coal.Rare Met Cem Carbides19932:27 (邓庆云刘松英.石煤钠化焙烧、酸浸、离子交换提钒新工艺 的试验研究.稀有金属与硬质合金19932:27) [7] Zou X YOuyang Y ZPeng Q Jet al.Study on the process of producing vanadium pentoxide from stone coal vanadium mine by no-salt-roasting and acid leaching.Chem World200142(3): 117 (邹晓勇欧阳玉祝彭清净等.含钒石煤无盐焙烧酸浸生产 五氧化二钒工艺的研究.化学世界200142(3):117) [8] Lu Z L.Investigation and industrial practice on extraction of V2O5from stone coal containing vanadium by acid process.Hydrometall Chin200221(4):175 (鲁兆伶.用酸法从石煤中提取五氧化二钒的试验研究与工业 实践.湿法冶金200221(4):175) [9] Zhang X YTian X D.Leaching kinetics of extraction of vanadium pentoxide from stone coal.Nat Sci J Xiangtan Univ2005 27(2):104 (张小云田学达.石煤提钒湿法工艺的动力学研究.湘潭大学 自然科学学报200527(2):104) [10] Li H G.Hydrometallurgy.Changsha:Central South University Press2002:74 (李洪桂.湿法冶金学.长沙:中南大学出版社2002:74) [11] Abali YBayca S UMistincik E.Kinetics of oxalic acid leaching of tincal.Chem Eng J2006123(1/2):25 ·980· 北 京 科 技 大 学 学 报 第30卷