微量加碱法合成聚合氯化铝的改进及Al13形成机理

赵华章, 彭凤仙, 栾兆坤, 徐毅, 陈福泰. 微量加碱法合成聚合氯化铝的改进及Al13形成机理[J]. 环境化学, 2004, 23(2): 202-207.
引用本文: 赵华章, 彭凤仙, 栾兆坤, 徐毅, 陈福泰. 微量加碱法合成聚合氯化铝的改进及Al13形成机理[J]. 环境化学, 2004, 23(2): 202-207.
ZHAO Hua-zhang, PENG Feng-xian, LUAN Zhao-kun, XU Yi, CHEN Fu-tai . THE IMPROVEMENT ON THE MICROINJECTION OF BASE METHOD FOR SYNTHESIZING POLYALUMINUM CHLORIDE(PAC)AND THE DISCUSSION ON THE FORMATION MECHANISM OF Al13 SPECIES[J]. Environmental Chemistry, 2004, 23(2): 202-207.
Citation: ZHAO Hua-zhang, PENG Feng-xian, LUAN Zhao-kun, XU Yi, CHEN Fu-tai . THE IMPROVEMENT ON THE MICROINJECTION OF BASE METHOD FOR SYNTHESIZING POLYALUMINUM CHLORIDE(PAC)AND THE DISCUSSION ON THE FORMATION MECHANISM OF Al13 SPECIES[J]. Environmental Chemistry, 2004, 23(2): 202-207.

微量加碱法合成聚合氯化铝的改进及Al13形成机理

  • 基金项目:

    国家863重大专项课题(2002AA601290)

    国家自然科学基金(批准号:50178067)资助项目

THE IMPROVEMENT ON THE MICROINJECTION OF BASE METHOD FOR SYNTHESIZING POLYALUMINUM CHLORIDE(PAC)AND THE DISCUSSION ON THE FORMATION MECHANISM OF Al13 SPECIES

  • Fund Project:
  • 摘要: 通过提高反应温度和加碱速度对微量加碱法进行了改进,从而提高了反应速度,缩短了反应时间,并提高了AlCl3和NaOH的允许浓度及产品的总铝浓度.同时对Al13的形成机理进行了探讨.结果表明,Ala形态首先与OH-反应生成Alc形态,然后Alc形态与Ala形态反应生成了Alb形态,即Al13形态.第二步反应较慢,为总反应的速率控制步骤,且为吸热反应,Al13的生成速率随反应温度的升高而增大.
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    [2] Kloprogge J T,Seykens D,Jansen J B H ct al.,A27Al Nuclear Magnetic Resonance Study on the Optimalization of the Development of the Al13 Polymer.Journal of Non-Crystalline Solids,1992,142:94-102
    [3] Bertsch P M,Conditions for Al13 Polymer Formation in Partially Neutralized Aluminum Solutioins.Soil Sci.Soc.Am. J.,1987,51:825-828
    [4] 冯利,汤鸿霄,Al13形态的研究进展.环境科学进展,1997,5(6):44-51
    [5] 高宝玉,岳钦艳,王占生等,聚硅氯化铝(PASC)的形态分布及转化规律,I.Al-Ferron逐时络合比色法研究PASC溶液中铝的形态分布及转化规律.环境化学,2000,19(1):1-7
    [6] Burrows M D,Aquatic Aluminum Chemistry,Toxicology and Environmental Prevalebce.CRC Critical Reviews in Environmental Control,1977,7:167
    [7] 栾兆坤,冯利,汤鸿霄,水解聚合铝溶液中形态分布的定量模拟研究.环境科学学报,1995,15(1):39-47
    [8] Akitt J W,Farthing A,New27Al NMR Studies of the Hydrolysis of the Aluminium(Ⅲ)Cation.J.Magn.Reson.,1978,32:345
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  • 收稿日期:  2003-05-08
赵华章, 彭凤仙, 栾兆坤, 徐毅, 陈福泰. 微量加碱法合成聚合氯化铝的改进及Al13形成机理[J]. 环境化学, 2004, 23(2): 202-207.
引用本文: 赵华章, 彭凤仙, 栾兆坤, 徐毅, 陈福泰. 微量加碱法合成聚合氯化铝的改进及Al13形成机理[J]. 环境化学, 2004, 23(2): 202-207.
ZHAO Hua-zhang, PENG Feng-xian, LUAN Zhao-kun, XU Yi, CHEN Fu-tai . THE IMPROVEMENT ON THE MICROINJECTION OF BASE METHOD FOR SYNTHESIZING POLYALUMINUM CHLORIDE(PAC)AND THE DISCUSSION ON THE FORMATION MECHANISM OF Al13 SPECIES[J]. Environmental Chemistry, 2004, 23(2): 202-207.
Citation: ZHAO Hua-zhang, PENG Feng-xian, LUAN Zhao-kun, XU Yi, CHEN Fu-tai . THE IMPROVEMENT ON THE MICROINJECTION OF BASE METHOD FOR SYNTHESIZING POLYALUMINUM CHLORIDE(PAC)AND THE DISCUSSION ON THE FORMATION MECHANISM OF Al13 SPECIES[J]. Environmental Chemistry, 2004, 23(2): 202-207.

微量加碱法合成聚合氯化铝的改进及Al13形成机理

  • 1.  中国科学院生态环境研究中心环境水质学国家重点实验室, 北京, 100085;
  • 2.  长沙环境保护学校
基金项目:

国家863重大专项课题(2002AA601290)

国家自然科学基金(批准号:50178067)资助项目

摘要: 通过提高反应温度和加碱速度对微量加碱法进行了改进,从而提高了反应速度,缩短了反应时间,并提高了AlCl3和NaOH的允许浓度及产品的总铝浓度.同时对Al13的形成机理进行了探讨.结果表明,Ala形态首先与OH-反应生成Alc形态,然后Alc形态与Ala形态反应生成了Alb形态,即Al13形态.第二步反应较慢,为总反应的速率控制步骤,且为吸热反应,Al13的生成速率随反应温度的升高而增大.

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