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化学学报
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化学学报 ›› 2008, Vol. 66 ›› Issue (2): 285-288. 上一篇    

研究简报

异丙醇铝合成中原料铝所含铁杂质与异丙醇反应活性研究

刘杰，田朋，宁桂玲*，林源   

  1. (大连理工大学精细化工国家重点实验室 辽宁省微纳系统重点实验室 大连 116012)
  • 投稿日期:2007-03-09 修回日期:2007-06-21 发布日期:2008-01-28
  • 通讯作者: 宁桂玲

Study on Reactivity of Fe Impurity in Aluminum Material toward 2-Propanol in the Synthesis of Aluminum Isopropoxide

LIU Jie; TIAN Peng; NING Gui-Ling*; LIN Yuan   

  1. (State Key Laboratory of Fine Chemicals and Liaoning Key Laboratory for Micro/Nano Technology and System, Dalian University of Technology, Dalian 116012)
  • Received:2007-03-09 Revised:2007-06-21 Published:2008-01-28
  • Contact: NING Gui-Ling

PDF

1002

被引次数

5

理论上金属铁与异丙醇是不发生化学反应的. 针对异丙醇铝合成反应中, 金属铝原料所含铁杂质与醇生成含铁低沸点有机物这一事实, 研究了体相铁对铝中铁杂质与异丙醇反应的影响, 同时研究了不同含铁量铝片/铁铝合金中铁杂质与异丙醇反应的规律. 反应产物经减压蒸馏后用电感耦合等离子体原子发射光谱方法(ICP-AES)进行铁含量分析. 基于实验结果和理论分析提出了小尺寸铁微粒高反应活性的反应机理. 并对产品采用元素分析, 1H NMR, IR进行初步表征.

关键词: 小尺寸, 铁, 异丙醇, 反应活性, 异丙醇铝, 铝

Theoretically, metal iron cannot directly react with alcohol. According to the fact that a low boiling-point iron-containing compound was found in the synthesis of aluminum isopropoxide (AIP) while using iron-containing aluminum as a starting material, the effect of bulk iron on the reactivity of the iron impurity in aluminum towards 2-propanol and the reaction behavior of the iron impurity in aluminum turning/Fe-Al alloy at different iron contents with 2-propanol were studied. The iron content of the product isolated via vacuum-distillation was determined by inductively coupled plasma-atomic emission spectroscopy. Based on the experimental result and theoretical analysis, the mechanism for the high reactivity of small size iron particles has been proposed. The product was determined by elemental analysis, 1H NMR and IR.

Key words: small size, iron, 2-propanol, reactivity, aluminum isopropoxide, aluminum