| 何志成,吴志民,李勇飞,潘浪胜,刘跃进.磺酸功能化双核离子液体催化合成双酚F[J].分子催化,2014,(6):535-543 |
| 磺酸功能化双核离子液体催化合成双酚F |
| Synthesis of Bispheol F Catalyzed by Sulfonic Acid-functionalized Dicationic Imidazolium Ionic Liquids |
| 投稿时间：2014-08-20 修订日期：2014-09-13 |
| DOI： |
| 中文关键词: 磺酸功能化 离子液体 苯酚 双酚F |
| 英文关键词:sulfonic acid-functionalized dicationic imidazolium ionic liquid catalyst phenol bisphenol F |
| 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: |
| 合成并表征了四种具有Br鴑sted酸性的磺酸功能化咪唑类离子液体催化剂，考察了其在催化苯酚、甲醛合成双酚F反应中的催化活性。结果表明磺酸功能化双核离子液体双-(3-磺酸丙基-1-咪唑)亚丁基硫酸氢盐（[DPSIM][HSO4]2 )不仅催化活性最佳，还提高了4,4’-双酚F异构体的含量。以[DPSIM][HSO4]2为催化剂，在苯酚与甲醛摩尔比30:1、离子液体催化剂质量浓度6.8 %、反应温度90 ℃、反应时间60 min的优化条件下，双酚F收率可达94.1%，同时提出了其催化合成双酚F的反应机理。该离子液体催化剂腐蚀性低，易分离回收，在重复使用6次后，双酚F收率仍在70%以上。 |
| 英文摘要: |
| Four types of sulfonic acid-functionalized Br鴑sted acidic ionic liquids were synthesized. The structure-catalytic performances of these ionic liquids for the synthesis of bisphenol F by condensation of phenol and formaldehyde were investigated. It was found that the [DPSIM][HSO4]2 showed the excellent catalytic performance compared to other ionic liquids and the reaction mechanism was proposed. Then the effects of reaction time, reaction temperature, concentration of ionic liquid and molar ratio of phenol to formaldehyde on the yield of bisphenol F with [DPSIM][HSO4]2 as catalyst were also studied. Under the optimal conditions of reaction time 60 min, reaction temperature 90℃, mass concentration of ionic liquid catalyst 6.8% and phenol/formaldehyde ratio 30:1, the [DPSIM][HSO4]2 catalyst gave the best yield of bisphenol F of 94.1%. The [DPSIM][HSO4]2 catalyst was also founded to have good reusability and low equipment corrosion. This approach is considered of great potential application in production of bisphenol F. |
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