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首页> 外文期刊>RSC Advances >Efficient and reusable SBA-15-immobilized Bronsted acidic ionic liquid for the ketalization of cyclohexanone with glycol
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Efficient and reusable SBA-15-immobilized Bronsted acidic ionic liquid for the ketalization of cyclohexanone with glycol

机译：用于乙二醇的环己酮的乙醛化的高效和可重复使用的SBA-15固定的铜酸性离子液体

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摘要

Ketalization of cyclohexanone with glycol has been carried out using molecular sieve SBA-15 immobilized Bronsted acidic ionic liquid catalyst. The properties of the heterogeneous catalysts were characterized by elemental analysis, Fourier transform infrared (FT-IR) spectra, scanning electron microscopy (SEM), thermogravimetry/differential scanning calorimetry (TG/DSC), and N-2 adsorption-desorption (BET). The results suggested that Bronsted acidic ionic liquid [BSmim][HSO4] had been successfully immobilized on the surface of SBA-15 and the catalytic performance evaluation demonstrated that the catalyst BAIL@SBA-15 exhibited excellent catalytic activities in the ketalization of cyclohexanone with glycol. In addition, the effects of reaction temperature, catalyst loading, reaction time, and reactant molar ratio have also been investigated in detail, and a general reaction mechanism for the ketalization of cyclohexanone with glycol was given. The SBA-15 immobilized ionic liquid can be recovered easily and after reusing for 5 times in the ketalization reaction, the catalyst could still give satisfactory catalytic activity.
机译：使用分子筛SBA-15固定的铜酸性离子液液催化剂进行了二醇的环己酮与二醇的乙醛化。通过元素分析，傅里叶变换红外（FT-IR）光谱，扫描电子显微镜（SEM），热重度/差示扫描量热法（TG / DSC）和N-2吸附 - 解吸（BET）的性质的特征在于，傅立叶变换催化剂的性质表征。 。结果表明，布朗斯台德酸性离子液体[BSmim] [HSO 4]已成功地固定表明，催化剂BAIL @ SBA-15中的环己酮与乙二醇的缩酮化表现出优异的催化活性的SBA-15和催化性能评价的表面上。此外，还详细研究了反应温度，催化剂负载，反应时间和反应物摩尔比的影响，并给出了与二醇的环己酮的乙醛化的一般反应机制。 SBA-15固定化离子液体可以容易地且在重键在乙醛反应中重复恢复5次后，催化剂仍然可以给出令人满意的催化活性。

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  • 来源
    《RSC Advances》 |2018年第13期|共7页
  • 作者

    Li Ruiyun; Song Heyuan; Wang Guoqin; Chen Jing;

  • 作者单位

    Chinese Acad Sci LICP State Key Lab Oxo Synth &

    Select Oxidat Lanzhou 730000 Gansu Peoples R China;

    Chinese Acad Sci LICP State Key Lab Oxo Synth &

    Select Oxidat Lanzhou 730000 Gansu Peoples R China;

    Chinese Acad Sci LICP State Key Lab Oxo Synth &

    Select Oxidat Lanzhou 730000 Gansu Peoples R China;

    Chinese Acad Sci LICP State Key Lab Oxo Synth &

    Select Oxidat Lanzhou 730000 Gansu Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
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