A Guide to Selecting Toluene Solvent Recovery Equipment
I. Key Selection and Considerations
When enterprises choose equipment, they need to focus on the following points:
Characteristics of waste solvents:
Composition and concentration: What is the approximate content of toluene and what are the main impurities (resin, pigment, alkane, etc.)?
Physical properties: viscosity, boiling point, whether it is prone to foaming, and prone to polymerization?
Processing capacity and demand:
Daily processing capacity or batch processing capacity (such as 500 liters per day).
The expected toluene recovery rate (usually over 95%).
The purity requirement for recovered toluene (such as >99%, which can be directly reused in production).
Equipment Performance and Safety:
Material: All components that come into contact with materials must be resistant to toluene corrosion. Generally, 304 or 316 stainless steel is selected.
Explosion-proof grade: Toluene is a Class A flammable liquid. The equipment motors, instruments, and control systems must comply with explosion-proof standards (such as Ex d IIB T4).
Sealing: The entire system must be highly sealed to prevent leakage.
Degree of automation: High automation can reduce manual operations, enhance safety and stability.
Energy Efficiency and Environmental Protection:
The heating method (high-efficiency thermal oil furnace, steam) and cooling method (energy-saving chiller) directly affect the operating cost.
The disposal of residues must comply with environmental protection regulations.
Supplier Qualifications and Services:
Choose a manufacturer with rich experience and successful cases.
Examine its capabilities in design, installation, commissioning, training and after-sales service.
II. Application Scenarios and Economic Benefits
Application Industries:
Waste solvents generated from cleaning reactors, equipment and containers in the production and use of paints and inks.
Plastics and rubber industry: used as a polymerization solvent or cleaning agent.
Printing and packaging industry: Cleaning of printing machines and laminating machines.
Electronic industry: Circuit board cleaning, semiconductor manufacturing.
Chemical Engineering and Pharmacy: As a reaction solvent or extractant.
Economic benefits:
Direct savings: The recovered toluene can replace fresh solvents, significantly reducing the cost of raw material procurement.
Reduce disposal costs: Decrease the volume of waste solvents treated as hazardous waste to save on the high cost of hazardous waste disposal.
Environmental benefits: Achieving resource utilization of waste, reducing VOCs emissions, and complying with increasingly strict environmental regulations.
The payback period for investment: Depending on the processing volume and solvent price, it usually ranges from 6 months to 2 years.
