以对甲苯磺酸和葡萄糖为原料,采用一步碳化法制备新型碳基固体酸催化剂,以1,4-丁二醇双琥珀酸聚醚(3)正辛基混合双酯磺酸钠制备过程的双酯化反应Ⅱ为探针,考察了 m (对甲苯磺酸)/m (葡萄糖)、碳化温度和碳化时间对催化活性影响,用 TEM、BET、XRD、IR、元素分析、热重分析等对催化剂进行了表征.结果表明,在 m (对甲苯磺酸)/m (葡糖糖)＝1∶2、碳化温度210℃下碳化8 h,得到的碳基固体酸催化剂形成致密的含有多级孔道的聚环碳架结构,磺酸基含量为21．21％.反应酯化率达到95％以上,并且该催化剂具有良好的热稳定性和重复使用性.
A new carbon-based solid acid catalyst was prepared by a one-step carbonization method with p-tolu-ene sulfonic acid and glucose as raw materials.The catalyst was characterized by TEM,BET,XRD,IR,ele-mental analysis,thermogravimetric.The double esterification reactionⅡ of the surfactant 1,4-butanediol dual succinate polyether (3)n-ocytl mixed double ester sulfonic acid sodium was taken as the probe reaction to inves-tigate the impact of the m (p-toluene sulfonic acid)/m (glucose),carbonization temperature and carbonization time on the catalytic activity.The results showed that the carbon-based solid acid catalyst prepared under the optimal conditions of carbonization at 210 ℃ for 8 h and in the m (p-toluene sulfonic acid)/m (sugar)= 1 ∶2, which had a condensed ring carbon frame structure containing multiple channels and the sulfonic acid group con-tent reached 21.21%.Esterification rate reached over 95%,and the catalyst showed considerable heat stability and reusability.
参考文献
| [1] | 王君霞,孟大维,严慧,潘会,于梅花,郝智波.S2O2-8/Al-Zn-O固体酸的制备及表征[J].功能材料,2010(05):800-803. |
| [2] | Wang Lingtao;Dong Xiuqin;Jiang Haoxi et al.Phospho-rylated ordered mesoporous carbon as a novel solid acid catalyst for the esterification of oleic acid[J].Catalysis Comunications,2014,56:164-167. |
| [3] | Lingtao Wang;Xiuqin Dong;Haoxi Jiang;Guiming Li;Minhua Zhang.Preparation of a novel carbon-based solid acid from cassava stillage residue and its use for the esterification of free fatty acids in waste cooking oil[J].Bioresource Technology: Biomass, Bioenergy, Biowastes, Conversion Technologies, Biotransformations, Production Technologies,2014:392-395. |
| [4] | Li Sihan;Gu Zhengrong;Bjornson B E et al.Biochar based solid acid catalyst hydrolyze biomass[J].Jornal of Environmental Chemical Engineering,2013,1(4):1174-1181. |
| [5] | Liu, T.;Li, Z.;Li, W.;Shi, C.;Wang, Y..Preparation and characterization of biomass carbon-based solid acid catalyst for the esterification of oleic acid with methanol[J].Bioresource Technology: Biomass, Bioenergy, Biowastes, Conversion Technologies, Biotransformations, Production Technologies,2013:618-621. |
| [6] | Synthesis of biodiesel from waste vegetable oil with large amounts of free fatty acids using a carbon-based solid acid catalyst[J].Applied energy,2010(8):P.2589. |
| [7] | Deshmane, C.A.;Wright, M.W.;Lachgar, A.;Rohlfing, M.;Liu, Z.;Le, J.;Hanson, B.E..A comparative study of solid carbon acid catalysts for the esterification of free fatty acids for biodiesel production. Evidence for the leaching of colloidal carbon[J].Bioresource Technology: Biomass, Bioenergy, Biowastes, Conversion Technologies, Biotransformations, Production Technologies,2013:597-604. |
| [8] | 乌日娜,王同华,修志龙,郭峰,潘艳秋,银建中.生物质炭基固体酸催化剂的制备[J].催化学报,2009(12):1203-1208. |
| [9] | 喻红梅,李建华,华平,方略韬,戴宝江,张海滨.1,4-丁二醇双子琥珀酸聚醚（3）异辛基混合双酯磺酸钠的合成与性能[J].精细化工,2013(11):1217-1222. |
| [10] | 华平,叶俊,喻红梅,戴宝江,方略韬.乙二醇双子琥珀酸2-乙基丁基酯磺酸钠的合成及性能[J].精细化工,2012(08):742-745. |
| [11] | 华平,戴宝江,李建华,叶俊,方略韬,喻红梅,单佳慧,朱国华.乙二醇双子琥珀酸2-甲基戊基双酯磺酸钠的合成与性能[J].精细化工,2011(10):964-967,998. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%