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采用盐酸为浸取剂,研究了常压下赤泥中镓和铝的浸出行为,考察盐酸添加量、温度、时间及液固比对镓、铝浸出行为的影响。结果表明,在盐酸添加系数1.2、浸出温度55℃、浸出时间4h、液固比8(mL/g)的条件下,镓浸出率高达94.77%,铝浸出率88.44%,浸出液含Ga2O33.68mg/L、Al2O322.73g/L。在该试验条件下,镓与铝的浸出效率成明显的正相关性。
Abstract：Leaching behavior of Ga and Al in red mud was studied at atmospheric pressure with hydrochloric acid as leachant.The effects of dosage of hydrochloric acid,temperature,time,and L/S on leaching behavior of Ga and Al were investigated.The results show that leaching rates of Ga and Al are 94.77%and 88.44% respectively,with concentrations of Ga_2O3 and Al_2O3 of 3.68 mg/L and 22.73g/L in lixivium,respectively,under the conditions including acid addition coefficient of 1.2,leaching temperature of 55 ℃,leaching time of 4h,and L/S=8.Leaching efficiencies of Ga and Al are in positive correlation under the test conditions.
[1]LU Xiaofei,WANG Lei,WANG Xinde,et al.Research progress in gallium recovery technology[J].Nonferrous Met.,2008,60:105-108.
[2]LIU Zhaobo,LI Hongxu.Metallurgical process for valuable elements recovery from red mud—A review[J].Hydrometallurgy,2015,155:29-43.
[3]路坊海,周登风,张华军.树脂吸附——酸脱附法在氧化铝生产流程中回收金属镓的应用[J].轻金属,2013(7):8-12.
[4]OLIVEIRA A A S,COSTA D A S,TEIXEIRA I F,et al.Gold nanoparticles supported on modified red mud for biphasic oxidation of sulfur compounds:A synergistic effect[J].Applied Catalysis B:Environmental,2015,162:475-482.
[5]MERCURY J M R,CABRAL A A,PAIVA A E M,et al.Thermal behavior and evolution of the mineral phases of Brazilian red mud[J].Journal of Thermal Analysis and Calorimetry,2011,104(2):635-643.
[6]POWER G,GRFE M,KLAUBER C.Bauxite residue issues:I.Current management,disposal and storage practices[J].Hydrometallurgy,2011,108(1):33-45.
[7]LIU Wanchao,CHEN Xiangqing.Environmental assessment,management and utilization of red mud in China[J].Journal of Cleaner Production,2014,84:606-610.
[8]BRUCKARD W J,CALLE CM,DAVIDSON RH,et al.Smelting of bauxite residue to form a soluble sodium aluminium silicate phase to recover alumina and soda[J].Min.Process.Extr.Metall.(Trans.Inst.Min.Metall.C),2010,119:18-26.
[9]ZHANG Ran,ZHENG Shili,MA Shuhua,et al.Recovery of alumina and alkali in Bayer red mud by the formation of andradite-grossular hydrogarnet in hydrothermal process[J].J.Hazard.Mater.,2011,189:827-835.
[10]LIU Wanchao,SUN Shouyi,ZHANG Ling,et al.Experimental and simulative study on phase transformation in Bayer red mud soda-lime roasting system and recovery of Al,Na and Fe[J].Miner.Eng.,2012,39:213-218.
[11]GHOSH I,GUHA S,BALASUBRAMANIAM R,et al.Leaching of metals from fresh and sintered red mud[J].J.Hazard.Mater.,2011,185:662-668.
[12]AGATZINI-LEONARDOU S,OUSTADAKIS P,TSAKIRIDIS P E,et al.Titanium leaching from red mud by diluted sulfuric acid at atmospheric pressure[J].J.Hazard.Mater.,2008,157:579-586.
[13]CENGELOGLU Y,TOR A,ARSLAN G,et al.Removal of boron from aqueous solution by using neutralized red mud[J].Journal of Hazardous Materials,2007,142(1):412-417.
[14]OCHSENKHN-PETROPOULOU M T,HATZILYBERIS K S,MENDRINOS L N,et al.Pilot-plant investigation of the leaching process for the recovery of scandium from red mud[J].Industrial&Engineering Chemistry Research,2002,41(23):5794-5801.
[15]BORRA C R,BLANPAIN B,PONTIKES Y,et al.Smelting of bauxite residue(red mud)in view of iron and Selective rare earths recovery[J].Journal of Sustainable Metallurgy,2016,2(1):28-37.
[16]BORRA C R,PONTIKES Y,BINNEMANS K,et al.Leaching of rare earths from bauxite residue(red mud)[J].Minerals Engineering,2015,76:20-27.
[17]ABDULVALIYEV RA,AKCIL A,GLADYSHEV SV,et al.Gallium and vanadium extraction from red mud of Turkish alumina refinery plant:Hydrogalliumrnet process[J].Hydrometallurgy,2015,157(10):72-77.
[18]翟秀静,吕子剑.镓冶金[M].北京:冶金工业出版社,2010:42.
[19]ZHENG Fang,GESSER H D.Recovery of gallium from coal fly ash[J].Hydrometallurgy,1996,41(2):187-200.
[20]徐本军,丁先胜.赤泥酸浸试验的热力学研究[J].轻金属,2013(1):27-30.
[21]王琪,姜林.硫酸浸出赤泥中铁、铝、钛的工艺研究[J].矿冶工程,2011,31(4):90-94.
基本信息:
中图分类号:TF821;TF843.1
引用信息:
[1]路坊海,李安静,王家伟,等.赤泥中镓铝在常压酸法浸出过程中的行为[J].有色金属(冶炼部分),2016(12):27-31.
基金信息:
国家自然科学基金资助项目(51664010); 贵州省科学技术基金项目(黔科合J字[2014]2083号,黔科合LH字[2016]7095号); 贵州理工学院高层次人才项目(XJGC20130903)
2016-12-12
2016-12-12