化工进展
化工進展
화공진전
Chemical Industry and Engineering Progress
2015年
z1期
121-126
,共6页
李天程%李强%季更生%赵翔%张大钊%闵文丽%屠洁
李天程%李彊%季更生%趙翔%張大釗%閔文麗%屠潔
리천정%리강%계경생%조상%장대쇠%민문려%도길
5-羟甲基糠醛%离子液体%纤维素%催化%混合酸
5-羥甲基糠醛%離子液體%纖維素%催化%混閤痠
5-간갑기강철%리자액체%섬유소%최화%혼합산
5-hydroxymethylfurfural%ionic liquids%cellulose%catalysis%mixing acids
以绿色溶剂离子液体1-甲基-3-甲基咪唑磷酸二甲基盐(1-methyl-3-methyl-imidazole dimethyl phosphate,[DMIM][DMP])作为反应介质,研究超低浓度的混合酸———马来酸与盐酸(0.1%,质量分数)催化纤维素转化制备5-HMF。微波功率720W,反应时间9min,温度240℃,酸浓度0.1%,固液比1∶50(质量比)为最佳反应条件,此条件下5-羟甲基糠醛的产率最高可达29.13%,转化效率为6.48mg/min。
以綠色溶劑離子液體1-甲基-3-甲基咪唑燐痠二甲基鹽(1-methyl-3-methyl-imidazole dimethyl phosphate,[DMIM][DMP])作為反應介質,研究超低濃度的混閤痠———馬來痠與鹽痠(0.1%,質量分數)催化纖維素轉化製備5-HMF。微波功率720W,反應時間9min,溫度240℃,痠濃度0.1%,固液比1∶50(質量比)為最佳反應條件,此條件下5-羥甲基糠醛的產率最高可達29.13%,轉化效率為6.48mg/min。
이록색용제리자액체1-갑기-3-갑기미서린산이갑기염(1-methyl-3-methyl-imidazole dimethyl phosphate,[DMIM][DMP])작위반응개질,연구초저농도적혼합산———마래산여염산(0.1%,질량분수)최화섬유소전화제비5-HMF。미파공솔720W,반응시간9min,온도240℃,산농도0.1%,고액비1∶50(질량비)위최가반응조건,차조건하5-간갑기강철적산솔최고가체29.13%,전화효솔위6.48mg/min。
An efficient process for preparation of 5-hydroxymethylfurfural (5-HMF ) from cellulose was carried out using ionic liquid 1-methyl-3-methyl-imidazole dimethyl phosphate ([DMIM][DMP])as reaction medium,extremely low 0.1% mixed acids (0.1%,maleic acid and HCl)as catalyst.Yield of 5-HMF was 29.13% and conversion efficiency was 6.48mg/min. The reaction condition of microwave was 720W for 9min at 240℃.The ratio of solid to liquid was 1∶50 (mass ratio)and acid concentration was 0.1%.
