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

1. Distillation Recovery Systems:

o Multi-column continuous distillation units

o Vacuum distillation equipment

o Azeotropic distillation systems

2. Membrane Separation Equipment:

o Permeation vaporization membrane modules

o Reverse osmosis concentration devices

3. 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

1. DMF recovery in synthetic leather production

2. Solvent recovery in the pharmaceutical industry

3. NMP recovery in lithium battery production (similar process)

4. 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