为提高电生功能水预处理玉米秸秆的效果,探讨了强化酸性电生功能水(acid electric water,AEW)性能指标的方法,包括在0℃下低温电解、先在强磁场下磁化再电解、往AEW中通入氯气等。结果表明,3种方法对AEW的pH值和氧化还原电位(oxidation-...为提高电生功能水预处理玉米秸秆的效果,探讨了强化酸性电生功能水(acid electric water,AEW)性能指标的方法,包括在0℃下低温电解、先在强磁场下磁化再电解、往AEW中通入氯气等。结果表明,3种方法对AEW的pH值和氧化还原电位(oxidation-reduction potential,ORP)值都能起到一定程度的强化作用,通氯气的AEW强度最高,pH值能达到1.87,ORP值1226 mV。用强化的AEW(pH值1.92,ORP值1218 mV)、未经强化AEW(pH值2.30、ORP值1175 mV)和同pH值盐酸(pH值2.30)分别预处理玉米秸秆,结果发现强化的AEW去除半纤维素去除率为68%,高于未经强化的61%,远高于盐酸的53%。AEW的预处理效果明显优于同pH值盐酸,说明了氧化性对秸秆的木质纤维素预处理中半纤维素的去除有重要影响。该研究对拓展电生功能水应用领域和探求生物质预处理新方法有一定的启示。展开更多
In this paper,the benzophonone was synthesized catalyzed by functionalized acidic ionic liquids Br-FeCl3with benzene and benzoylchloride as starting materias.The optimum reaction conditions were:n(benzene):n(benzoylch...In this paper,the benzophonone was synthesized catalyzed by functionalized acidic ionic liquids Br-FeCl3with benzene and benzoylchloride as starting materias.The optimum reaction conditions were:n(benzene):n(benzoylchloride) : n(Br-FeCl3[n(FeCl3)/n(Br-FeCl3)=0.75])=3∶1∶0.1,reaction temperature was 80℃ and reaction time was 80 min,under which the yield of benzophenone was 96.3%.展开更多
文摘In this paper,the benzophonone was synthesized catalyzed by functionalized acidic ionic liquids Br-FeCl3with benzene and benzoylchloride as starting materias.The optimum reaction conditions were:n(benzene):n(benzoylchloride) : n(Br-FeCl3[n(FeCl3)/n(Br-FeCl3)=0.75])=3∶1∶0.1,reaction temperature was 80℃ and reaction time was 80 min,under which the yield of benzophenone was 96.3%.