| 吴丁,陈超,邓圣军,丁顺民,彭艳,张宁.酸化膨润土催化合成乙基叔丁基醚的研究[J].分子催化,2013,(5):413-419 |
| 酸化膨润土催化合成乙基叔丁基醚的研究 |
| Synthesis of Ethyl Tert-Butyl Ether with Tert-Butyl Alcohol and Ethanol on a H2SO4 Activated Bentonite |
| 投稿时间：2013-06-19 修订日期：2013-09-14 |
| DOI： |
| 中文关键词: 酸化膨润土 ETBE 醚化反应 |
| 英文关键词:Acid activated bentonites ETBE Etherification |
| 基金项目:国家自然科学基金项目（面上项目，重点项目，重大项目） |
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| 中文摘要: |
| 以不同浓度的H2SO4对膨润土进行改性, 得到酸化膨润土催化剂 x% H2SO4-BN (x=20, 25, 30, 35, 40), 通过XRD, BET, FT-IR, Py-IR和NH3-TPD对膨润土的结构和性质进行表征, 证明膨润土经酸化后, 骨架结构基本没有变化, 但是其比表面和孔容有很大的提高, 且弱酸位增多. 将其用于催化乙醇(EtOH)和叔丁醇(TBA)合成乙基叔丁基醚（ETBE）的醚化反应. 结果表明, 30% H2SO4-BN催化活性最好, 最佳实验条件:催化剂用量为3.5%(催化剂与叔丁醇的质量百分比), 反应温度130 oC, 原料摩尔比(EtOH: TBA)为 2: 1. |
| 英文摘要: |
| Bentonites have been treated by different concentrations H2SO4 solution, and x% H2SO4-BN (x=20, 25, 30, 35, 40) catalysts are obtained. XRD, BET, FT-IR, Py-IR and NH3-TPD are used to investigate the structure and properties of the bentonites, suggesting that the skeleton structure of the bentonites is not changed, its surface area and pore volume are greatly improved in turn, and the week acid sites increased. Evaluation reaction of synthesis of ETBE from ethanol (EtOH) and tert-butyl alcohol (TBA) shows that 30% H2SO4-BN have the best catalytic activity, and the optimum experimental condition has been investigated. |
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