Study on Compound Cross-Flow Liquid-Liquid Extraction for Separating Methylal-Methanol Azeotropic System
Aiming at the raw material of a methylal-methanol azeotropic rnixture(including 91.8% of methylal, 8.2% of methanol), With a certain proportion of the composite solvent as extracting agent, over 99.5% purity of methylal can be obtained with two-stage cross-flow liquid-liquid extraction combining distillation operation, while the compound extracting agent can be recycled. Compared with the traditional methods, the new technology has more obvious methanol removing effect, higher product purity, higher recovery ratio(>95%), and lower energy consumption. Its a new feasible scheme to Separate methylalmethanol azeotropic system.
Methylal Methanol liquid-liquid extraction Composite Solvent
Jun LIN Qunqun HUANG Jingjing Zhu Zhenggui GU
College of Chemistry and Material Science, Nanjing Normal University, Jiangsu, 210097, China
国际会议
合肥
英文
450-453
2011-09-23(万方平台首次上网日期,不代表论文的发表时间)