采用正交试验设计法,以丝钠铝石的收率为指标,考察了碳酸氢钠用量、pH值、反应温度和反应时间等因素对柠檬酸法氧化铝生产工艺的影响.在优选工艺条件下:NaHCO3与Al摩尔比为5,pH =11,反应温度为80℃,反应时间为3h,柠檬酸铝至丝钠铝石的转化率从原有的65％提高至76％.
参考文献
| [1] | Gu Songqing,Yin Zhonglin.Sustainability of Chinese Alumina Production from High Silica Diasporic Bauxite[C]//TMS 2009 138th Annual Meeting and Exhibition-Light Metals 2009.San Francisco:Minerals,Metals and Materials Society,2009:25-30. |
| [2] | Colina F G,Abellan M N,Caballero I.High-Temperature Reaction of Kaolin with Ammonium Sulfate[J].Ind Eng Chem Res,2006,45 (2):495-502. |
| [3] | Colina F G,Esplugas S,Costa J.High-Temperature Reaction of Kaolin with Sulfuric Acid[J].Ind Eng Chem Res,2002,41(17):4168-4173. |
| [4] | (O)zdemir M,(C)eti(s)li H.Sulfate Removal from Alunitic Kaolin by Chemical Method[J].Ind Eng Chem Res,2005,44(9):3213-3219. |
| [5] | CAO Huijun,ZHOU Jikui,LI Wangxing.The Preparation of Citric Acid-based Alumina from Clay:CN,200710099831[P],2007-10-24(in Chinese).曹慧君,周吉奎,李旺兴.一种柠檬酸浸出粘土矿生产氧化铝的方法:中国,200710099831[P],2007-10-24. |
| [6] | ZHOU Jikui,ZHAO Zhuo,CAO Huijun.The Preparation of Aluminum Citrate from Kaolin:CN,200710118676[P],2007-12-26(in Chinese).周吉奎,赵卓,曹慧君.一种高岭土生产柠檬酸铝的方法:中国,200710118676[P],2007-12-26. |
| [7] | NIU Yinjian,WAN Pingyu,CHEN Yongmei,et al.Method for Producing Aluminum Oxide from Aluminum Citrate:CN,ZL2008101264914[P],2008-09-17(in Chinese).钮因健,万平玉,陈咏梅,等.一种利用柠檬酸铝生产制备氧化铝的方法:中国,ZL2008101264914[P],2008-09-17 |
| [8] | YU Zhanglong,LV Yajing,CHEN Yongmei,et al.Laboratory Studies on the Preparation Procedures of Alumina Converted from Aluminum Citrate[J].Ind Eng Chem Res,2010,49(4):1832-1836. |
| [9] | GOU Zhongru.Study on Carbonization of Sodium Aluminate Solution with High Al2O3 Concentration[D].Changsha:Central South University,2002(in Chinese).苟中入.高浓度铝酸钠溶液碳酸化分解的机理和工艺[D].长沙:中南大学有色金属冶金专业,2002. |
| [10] | LIU Xiangmin. Study on the Fundamentals and Technology of Sandy Alumina Production by Sinter Process[D].Changsha:Central South University,2004 (in Chinese).刘祥民.烧结法生产砂状氧化铝的理论与工艺研究[D].长沙:中南大学有色金属冶金专业,2004. |
| [11] | Zhang Xiaofeng,Wen Zhaoyin,Gu Zhonghua,et al.Hydrothermal Synthesis and Thermodynamic Analysis of Dawsonite-type Compounds[J].Solid State Chem,2004,177:849-855. |
| [12] | Bénézeth P,Palmer D A,Anovitz L M,et al.Dawsonite Synthesis and Revaluation of Its Thermodynamic Properties from Solubility Measurements:Implications for Mineral Trapping of CO2[J].Geochim Cosmochim Acta,2007,(71):4438-4455. |
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