欢迎登录材料期刊网

材料期刊网

高级检索

进行了银对闪锌矿氧压酸浸催化作用的研究.通过间歇性小型试验考察了各种因素对浸出率的影响,诸如浸出温度、浸出时间.试验在2升的高压釜内进行,结果表明银离子对闪锌矿氧压酸浸有显著的催化作用.

An attempt was made to investigate the catalytic role of silver in enhancing the rate of acid pressure oxidative leaching of sphalerite concentrate.A series of batch experiments were performed under various conditions to investigate the influences of variables,such as temperature and duration.The experimental results obtained show that as a catalyst,aqueous silver ions can accelerate the leaching of sphalerite concentrates significantly.

参考文献

[1] R.G. McDonald;D.M. Muir .Pressure oxidation leaching of chalcopyrite. Part I. Comparison of high and low temperature reaction kinetics and products[J].Hydrometallurgy,2007(3/4):191-205.
[2] Dutrizac J E .The leaching of sulphide minerals in chloride media[J].HYDROMETALLURGY,1992,29(1-3):1-45.
[3] XIE Ke-qiang,YANG Xian-wan,WANG Ji-kun,YAN Jiang-feng,SHEN Qing-feng.Kinetic study on pressure leaching of high iron sphalerite concentrate[J].中国有色金属学会会刊(英文版),2007(01):187-194.
[4] Daniel Dayrell Pereira;Sonia Denise Ferreira Rocha;Marcelo Borges Mansur .Recovery of zinc sulphate from industrial effluents by liquid-liquid extraction using D2EHPA (di-2-ethylhexyl phosphoric acid)[J].Separation and Purification Technology,2007(1):89-96.
[5] Hu Yuehua;Qiu Guanzhou;Wang Jun .The effect of silver-bearing catalysts on bioleaching of chalcopyrite[J].Hydrometallurgy,2002(2):81-88.
[6] M.R.Ronnholm;J.Warna;D.Valtakari;T.Salmi;E.Laine .Kinetics and mass transfer effects in the oxidation of ferrous sulfate over doped active carbon catalysts[J].Catalysis Today,2001(2/4):447-452.
[7] S.Aydogan;A.Aras;M.Canbazoglu .Dissolution kinetics of sphalerite in acidic ferric chloride leaching[J].Chemical Engineering Journal,2005(1/3):67-72.
[8] J.Narciso;C.Garcia-cordovilla;E.Louis .Pressure infiltration in a reactive system: packed SiC particulates infiltrated by pure silver with dissolved oxygen[J].Acta materialia,1997(12):5111-5118.
[9] Milton E. Wadsworth;Ximeng Zhu .Kinetics of enhanced gold dissolution: activation by dissolved silver[J].International Journal of Mineral Processing,2003(1/4):301-310.
[10] Smith AML;Hudson-Edwards KA;Dubbin WE;Wright K .Dissolution of jarosite [KFe3(SO4)(2)(OH)(6)] at pH 2 and 8: Insights from batch experiments and computational modelling[J].Geochimica et Cosmochimica Acta: Journal of the Geochemical Society and the Meteoritical Society,2006(3):608-621.
[11] Combes J M;Manceau A;Calas G et al.Formation of ferric oxides from aqueous solutions:A polyhedral approach by X-ray absorption spectroscdpy:I.Hydrolysis and formation of ferric gels[J].Geochimica et Cosmochimica Acta,1989,53(03):583-594.
[12] Lam SW;Chiang K;Lim TM;Amal R;Low GKC .The role of ferric ion in the photochemical and photocatalytic oxidation of resorcinol[J].Journal of Catalysis,2005(2):292-299.
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:
  • 1
    0%
  • 2
    0%
  • 3
    0%
  • 4
    0%
  • 5
    0%