PVA/SO<sub>4</sub><sup>2-</sup>-AAO催化-渗透汽化双功能复合膜合成乙酸乙酯

岳东敏; 张欠之; 孙德; 李冰冰; 毛钦烨; 彭从康

doi:10.11949/j.issn.0438-1157.20171318

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PVA/SO₄^2--AAO催化-渗透汽化双功能复合膜合成乙酸乙酯

材料化学工程与纳米技术 | 更新时间：2025-12-10

- PVA/SO₄^2--AAO催化-渗透汽化双功能复合膜合成乙酸乙酯
- Preparation and properties of PVA/SO₄^2--AAO catalytic-pervaporation difunctional membrane for ethyl acetate synthesis
- 化工学报 2018年第6期页码：2775-2781
- 作者机构：
  
  长春工业大学化学工程学院,吉林,长春,130012
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20171318
  中图分类号： Q013.2TQ032.4
- 网络首发：2018-06-05，
  
  纸质出版：2018-06-05
- 稿件说明：
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岳东敏, 张欠之, 孙德, 等. PVA/SO₄^2--AAO催化-渗透汽化双功能复合膜合成乙酸乙酯[J]. 化工学报, 2018,(6):2775-2781. DOI: 10.11949/j.issn.0438-1157.20171318.

YUE Dongmin, ZHANG Qianzhi, SUN De, et al. Preparation and properties of PVA/SO₄^2--AAO catalytic-pervaporation difunctional membrane for ethyl acetate synthesis[J]. CIESC Journal, 2018, (6): 2775-2781. DOI: 10.11949/j.issn.0438-1157.20171318.
岳东敏, 张欠之, 孙德, 等. PVA/SO₄^2--AAO催化-渗透汽化双功能复合膜合成乙酸乙酯[J]. 化工学报, 2018,(6):2775-2781. DOI: 10.11949/j.issn.0438-1157.20171318. DOI：

YUE Dongmin, ZHANG Qianzhi, SUN De, et al. Preparation and properties of PVA/SO₄^2--AAO catalytic-pervaporation difunctional membrane for ethyl acetate synthesis[J]. CIESC Journal, 2018, (6): 2775-2781. DOI: 10.11949/j.issn.0438-1157.20171318. DOI：

摘要

采用浸渍-涂覆法制备了聚乙烯醇/阳极氧化铝固体酸（PVA/SO42--AAO）催化-渗透汽化双功能膜，并用于乙酸与乙醇的催化酯化反应。用SEM、XRD、NH3-TPD分析了双功能膜的结构及性能。考察了双功能膜用量、乙酸/乙醇摩尔比及反应温度对酯化反应转化率的影响。结果表明：乙酸/双功能膜质量比为30∶1，乙酸/乙醇摩尔比为4∶1，料液温度为80℃时乙醇的500 min转化率可以达到87%。反应活化能为41.84 kJ/mol，比浓硫酸作催化剂的经典反应活化能降低6.74 kJ/mol。

Abstract

The PVA/SO42--AAO difunctional membranes made of polyvinyl alcohol and anodic aluminum oxide solid acid were prepared by impregnation-coating method. The structure and properties of the as-made membranes were examined by scanning electron microscope (SEM)

X-ray diffraction (XRD)

and NH3 temperature programmed desorption (NH3-TPD). The potential of the PVA/SO42--AAO difunctional membranes for synthesis of ethyl acetate via esterification reaction has been explored. The effects of the loading amount of the membrane

the ratio of acetic acid to ethanol and the reaction temperature on the performance of the concerned membranes were studied. The results have shown that the conversation of ethanol could reach 87% when the ratio of acetic acid to difunctional membrane was 30:1

the ratio of acetic acid to ethanol was 4:1

the feeding temperature was 80℃

and the reaction time was 500 min. The reaction activation energy was 41.84 kJ/mol

which was 6.74 kJ/mol lower than that with the concentrated sulfuric acid as catalyst.

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PVA/SO42--AAO催化-渗透汽化双功能复合膜合成乙酸乙酯

Preparation and properties of PVA/SO42--AAO catalytic-pervaporation difunctional membrane for ethyl acetate synthesis

DOI：10.11949/j.issn.0438-1157.20171318

摘要

Abstract

关键词

Keywords

references

PVA/SO₄^2--AAO催化-渗透汽化双功能复合膜合成乙酸乙酯

Preparation and properties of PVA/SO₄^2--AAO catalytic-pervaporation difunctional membrane for ethyl acetate synthesis