Introduction to solvent recovery solutions
Date: 2020-04-23 Views: 387
Introduction to solvent recovery solutions
Non azeotropic system（methanol、acetone、DMF、acetic acid）
- Simple distillation – Mainly to control energy consumption
Heterogeneous azeotrope（butanol、MIBK、ethyl acetate、DCM/H2O）
- Azeotropic distillation with extraction separation tank（One or two distillation columns）
Homogeneous azeotrope
- （Pressure swing distillation（THF/ H2O）
- Azeotropic distillation with entrainer（IPA/ cyclohexane / H2O）
- Extractive distillation with entrainer（ethanol / H2O / glycol ether）
- Rectification + membrane technology（ethanol / H2O）
- Rectification + liquid-liquid extraction（pyrimidine / H2O / alkali）
Solvent recovery experience- Anhydrous system
Non azeotropic system（ethanol / methanol）
-Simple distillation – Mainly to control energy consumption
Heterogeneous azeotrope
- Azeotropic distillation（methanol/ methyl cyclohexane）
Homogeneous azeotrope
- Pressure swing distillation（cyclohexane/ ethyl acetate
- Azeotropic distillation with entrainer（acetonitrile / methylbenzene / hexane）
- Extractive distillation with entrainer（methyl acetate/ methanol/DEG）
- Rectification + membrane technology（methanol/ methyl acetate）
- Liquid-liquid extraction（MDC/ methanol/ H2O）
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