Overview of DMF Recovery Equipment
DMF (N,N-Dimethylformamide) recovery equipment is a dedicated system used for recovering and purifying DMF solvents from industrial waste liquids. It is widely applied in industries such as polyurethane synthetic leather, pharmaceuticals, pesticides, and electronics.
Main Types
- Distillation Recovery Systems:
o Multi-column continuous distillation units
o Vacuum distillation equipment
o Azeotropic distillation systems
- Membrane Separation Equipment:
o Permeation vaporization membrane modules
o Reverse osmosis concentration devices
- Adsorption Recovery Systems:
o Activated carbon adsorption towers
o Molecular sieve adsorption units
Key Technical Parameters
- Recovery rate: Typically 95-99%
- Purity: ≥99.5% (industrial grade) or ≥99.9% (electronic grade)
- Processing capacity: Ranges from several hundred liters per hour to tens of tons per day
- Energy consumption: Approximately 0.3-0.8 tons of steam per ton of DMF, depending on the process
Application Areas
- DMF recovery in synthetic leather production
- Solvent recovery in the pharmaceutical industry
- NMP recovery in lithium battery production (similar process)
- Organic solvent recovery in chemical production
Selection Considerations
- Composition of waste liquid and DMF concentration
- Production scale and continuous operation requirements
- Product purity requirements
- Energy costs and environmental protection requirements
- Equipment investment budget