Application of organic solvent nanofiltration in the field of fine chemical industry
The production process in the fine chemical industry includes multiple processes,among which solvent re-covery,product concentration,and other processes consume significant resources.Organic solvent nanofiltration can couple or replace traditional processes to achieve energy conservation and emission reduction.The production level of fine chemical industry in our country still needs to be improved.The separation and absorption of solvents in the pro-duction process requires a large amount of energy consumption.Optimizing the separation technology can effectively reduce energy consumption and increase production efficiency.In recent years,Organic Solvent Nanofiltration(OSN)membrane separation technology has developed rapidly.It can separate solutes with a molecular weight of 200～1000Da and thermally separate thermosensitive substances without phase change.It has been widely used in catalyst recovery,solvent recovery,and other processes in fine chemicals.This study explores the application of OSN in the pharmaceutical and food processing industries,and introduces some OSN process flows in the industry.
Organic solvent nanofiltrationFine chemical industryCoupled distillation
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