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正交试验法优化柠檬酸法氧化铝生产工艺

陈咏梅1*,朱军利2,余章龙1,万平玉1   

  1. (1.北京化工大学理学院 北京 100029;2.西北化工研究院 西安 710600)
  • 收稿日期:2011-02-21 修回日期:2011-05-25 出版日期:2012-01-10 发布日期:2012-01-10
  • 通讯作者: 陈咏梅,副教授; Tel:010-64445917; Fax:010-64435452; E-mail:chenym@mail.buct.edu.cn; 研究方向：应用化学
  • 作者简介:

    通讯联系人: 陈咏梅,副教授; Tel: +86-010-64445917; Fax:010-64435452; E-mail: chenym@mail.buct.edu.c; 研究方向: 应用化学

  • 基金资助:
    中央高校自主创新资助项目(JD0907)

Orthogonal Optimized Synthesis of Dawsonite from Aluminum Citrate

CHEN Yongmei1*, ZHU Junli2, YU Zhanglong1, WAN Pingyu1   

  1. (1.Faculty of Science,Beijing University of Chemical and Technology,Beijing 100029,China;
    2.Northwest Research Institute of Chemical Industry,Xi′an 710060,China)
  • Received:2011-02-21 Revised:2011-05-25 Published:2012-01-10 Online:2012-01-10
  • Contact: Zhu Junli

PDF

1655

被引次数

6 | 3

摘要：

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3 h，柠檬酸铝至丝钠铝石的转化率从原有的65%提高至76%。

关键词: 正交试验法, 柠檬酸铝, 丝钠铝石, 氧化铝

Abstract:

The conversion of aluminum citrate(AlCit) to dawsonite is the key step to the alumina process named “AlCit-dawsonite-alumina”. The reaction conditions including the dosage of sodium bicarbonate, pH, reaction temperature and reaction time, were found to be related to the conversion of AlCit. Orthogonal experimental design was employed to optimize the reaction conditions. About 76% of AlCit was conversed to dawsonite under the optimized conditions:NaHCO3/Al molar ratio of 5， pH of 11, temperature of 80 ℃ and reaction time of 3 h， comparing to 65% obtained under preliminary experimental conditions.

Key words: orthogonal experimental design, aluminium citrate, dawsonite, alumina

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