摘要
制备了一种磺酸化的磁性碳质固体酸催化剂PCM-SO_3H,用于催化糖类制备液态生物燃料5-乙氧基甲基糠醛(EMF),考察了二甲亚砜在溶剂中的含量对糖类转化和产物分布的影响。结果表明,该催化剂不仅能催化5-羟甲基糠醛(HMF)的醚化,EMF产率高达85.6%,也能在乙醇-二甲亚砜双溶剂体系下一锅法催化果糖制备EMF,反应温度100℃,反应时间10 h,催化剂加入量45 mg,溶剂(DMSO 1.5 m L和乙醇3.5 m L)时,EMF的收率达61.8%。反应结束后,该催化剂可以在外部磁场条件下从反应混合物中重新获得,且重复使用多次依然保持高的活性。
A novel magnetically carbonaceous material functionalized with sulfonic acid groups PCM-SO3H catalyst for the conversion of carbohydrates to liquid biofuels 5-ethoxymethylfurfural（ EMF）. The effect of DMSO content for the conversion of carbohydrates and the distribution of products was investigated. PCMSO3H showed an excellent catalytic activity toward the synthesis of EMF from fructose and HMF. EMF was gained in a high yield of 85. 6% by the etherification of 5-hydroxymethylfurfural. When reaction temperature was 100 ℃,reaction time was 10 h,the catalyst amount was 45 mg and solvent（ DMSO 1. 5 m L and ethanol 3. 5 m L）,EMF could also be obtained with a high yield of 61. 8% in the ethanol-DMSO solvent system by the one-top conversion of fructose. After reaction,the catalyst could be readily recovered from the reaction mixture solution by an external magnetic field,and reused for several times without loss of its catalytic activity.
出处
《应用化工》
CAS
CSCD
北大核心
2016年第7期1258-1261,1266,共5页
Applied Chemical Industry
基金
江苏省自然科学基金(BK2012118
BK2012547)
