In order to separate methyl acetate and methanol azeotrope, the ionic liquid(IL) 1,3-dimethylimidazolium dimethylphosphate([DMIM]DMP) was used as the solvent. The Aspen Plus software was used to design and optimize th...In order to separate methyl acetate and methanol azeotrope, the ionic liquid(IL) 1,3-dimethylimidazolium dimethylphosphate([DMIM]DMP) was used as the solvent. The Aspen Plus software was used to design and optimize the extractive distillation process. Under the optimized conditions, the mass fractions of methyl acetate and methanol were both above 99.5%. Compared with the dimethyl sulfoxide(DMSO) process, the [DMIM]DMP process has the advantages of saving energy and lower equipment investment cost. The result shows that using [DMIM]DMP as the solvent to separate a methyl acetate and methanol azeotrope has better prospect in industrial application.展开更多
研究从油茶籽中提取多酚的最佳工艺条件。设计溶剂对比试验,并在溶剂浓度、提取温度、时间、料液比、浸提次数这5个单因素试验的基础上,进行了正交试验,用FC法测定了油茶籽多酚的含量。油茶籽的最佳工艺条件:甲醇浓度50%,温度50℃,时间6...研究从油茶籽中提取多酚的最佳工艺条件。设计溶剂对比试验,并在溶剂浓度、提取温度、时间、料液比、浸提次数这5个单因素试验的基础上,进行了正交试验,用FC法测定了油茶籽多酚的含量。油茶籽的最佳工艺条件:甲醇浓度50%,温度50℃,时间60 m in,料液比1∶15(W∶V)。展开更多
基金financially supported by the Guizhou Province Science and Technology United Fund (Qiankehe J zi LKLS[2013]28, LKLS[2013]27)the Guizhou Province Education Department (GZSJG10977201604)+3 种基金the Excellent Engineers Education Training Plan (LPSSY zyjypyjh201702)the Guizhou Province Education Department (Qianjiaohe KY zi [2017]258)Guizhou Solid Waste Recycling Laboratory of Coal Utilization ([2011]278)the Guizhou Ordinary College Innovation Team of Coal Solid Waste Recycling Technology ([2014]46)
文摘In order to separate methyl acetate and methanol azeotrope, the ionic liquid(IL) 1,3-dimethylimidazolium dimethylphosphate([DMIM]DMP) was used as the solvent. The Aspen Plus software was used to design and optimize the extractive distillation process. Under the optimized conditions, the mass fractions of methyl acetate and methanol were both above 99.5%. Compared with the dimethyl sulfoxide(DMSO) process, the [DMIM]DMP process has the advantages of saving energy and lower equipment investment cost. The result shows that using [DMIM]DMP as the solvent to separate a methyl acetate and methanol azeotrope has better prospect in industrial application.
