Industrial Drying Systems with Complete Solvent Recovery
EcoProcess manufactures advanced drying systems for heat-sensitive materials with full solvent recovery and zero liquid discharge capabilities. Our indirect heating dryers operate under vacuum for gentle drying without air contact.
Applications: Pharmaceutical APIs, chemical intermediates, dyes, pigments, organic salts, and wastewater treatment.
Drying Technologies
Agitated Thin film dryer (ATFD)
Heat-sensitive materials with complete solvent recovery
Key Features
- Residence time of few seconds - no degradation
- Drying without air (indirect heating)
- Complete solvent recovery possible
- Operating pressure as low as 1 mbar
- Thermal efficiency over 85%
- Fine, uniform powder - no grinding needed
Applications
Bulk drugs, intermediates, dyes, pigments, organic salts, heat-sensitive APIs
Rotary Vacuum Paddle Dryer (RVPD)
Gentle drying for wet cakes, powders, and slurries
Key Features
- Minimum labor and energy cost
- Dries heat-sensitive materials at low temperatures
- Complete solvent recovery possible
- Uniform heating (jacket + shaft + paddles)
- Can dry to ppm moisture levels
- Batch and continuous operations possible
Applications
Pharmaceutical wet cake drying, chemical intermediates, food products, fine chemicals
Agitated Nutsche filter dryer (ANFD)
Multi-functional all-in-one processing system
Key Features
- All operations in one closed system
- Ideal for hazardous/toxic materials
- Multiple washing with different solvents
- Complete moisture vaporization
- Solvent recovery with vapor condenser
- cGMP construction with full validation support
Applications
Pharmaceutical all-in-one processing, complex filtration/drying workflows, cGMP compliance
Zero Liquid Discharge (ZLD) Systems
Complete wastewater elimination and solvent recovery
Key Features
- Three-stage integrated system
- Reduced operating and disposal costs
- No dusting, smell, or air pollution
- Complete skid-mounted system available
- Fully automatic PLC-based SCADA operation
- Custom-engineered for site conditions
Applications
Chemical and pharmaceutical effluent treatment, wastewater from dye/pigment manufacturing, regulatory compliance
Material Drying Pathway
Advantages Over Air Dryers
- No air contact - ideal for light/oxygen sensitive products
- Complete solvent recovery vs. loss in air dryers
- No dusting or air pollution
- Lower operating costs and energy consumption
Advanced Capabilities
- Residence time of few seconds - no thermal degradation
- Operating pressure as low as 1 mbar for heat-sensitive products
- Thermal efficiency over 85% - significant energy savings
- Fine, uniform powder - no grinding step required
System Comparison Guide
Select the optimal drying system based on your specific requirements
|
System |
Feed Type |
Residence Time |
Solvent Recovery |
Best Application |
|
ATFD |
Slurry to wet powder |
Seconds |
Complete |
Heat-sensitive APIs, continuous drying |
|
RVPD |
Wet cake, powder |
Minutes to hours |
Complete |
Batch drying, gentle handling required |
|
ANFD |
Filter cake from reaction |
Variable (batch) |
Complete |
Pharmaceutical all-in-one processing |
|
ZLD System |
Wastewater/effluent |
Multi-stage |
Complete |
Zero discharge compliance |
Why Choose Ecoprocess Dryers?
Industry-leading drying solutions backed by decades of engineering expertise
compliance & quality
- cGMP construction for pharma
- ASME pressure vessel standards
- No emissions - environmental friendly
- Complete validation support
sustainability
- Zero air pollution emissions
- Maximum solvent recovery and reuse
- Minimal waste generation
- Energy-efficient vacuum operation
technical superiority
- Indirect heating - no air contact
- Operates under vacuum for low temperatures
- Complete solvent recovery vs. air dryers
- Higher thermal efficiency (>85% for ATFD)
economic benefits
- Lower operating costs than spray/flash dryers
- No solvent loss to atmosphere
- Fine powder - no grinding step needed
- Reduced energy consumption
Applications & Industries
Primary Applications
Solvent drying
Power manufacturing
ZLD final-stage drying
Sludge-to-power conversion
Crystallized product drying
API drying
Agrochemical granules
Resin & polymer drying
industries served
Pharmaceuticals
Chemicals
Food & Nutraceuticals
Agrochemicals
Petrochemicals
Specialty Chemicals
Distilleries & solvents
ZLD & ETP plants
Key Features
-
Vacuum/steam/hot-oil compatible designs
-
CIP/SIP-ready
-
Optional solvent recovery integration
-
ATEX options available
-
Corrosion-resistant (SS316L, Duplex, Hastelloy)
-
High heat transfer efficiency
-
Precise temperature control
-
GMP & cleanable surfaces available
-
Advanced drying curve analysis
Technical Specifications
Dryers are custom-designed based on feed load, moisture % reduction, solvent recovery needs, heat medium, and drying kinetics.
| Parameter | Typical Range | Notes |
|---|---|---|
|
Feed Type |
Slurry / Paste / Powder / Crystals |
Depends on dryer selected |
|
Operating Temp |
45–200°C |
Hot oil, steam, or electric |
|
Operating Pressure |
Vacuum → Atmospheric |
Vacuum dryers for heat-sensitive products |
|
Residence Time |
Minutes → Hours |
Controlled by model type |
|
Solvent Recovery |
Optional |
Especially RCVD, ATFD, ANFD |
|
Materials |
SS316L / Duplex / Hastelloy |
Based on corrosive media |
|
Automation |
PLC–HMI |
Batch/recipe-based |
|
Heating Medium |
Steam / Hot Oil / Electrical |
Based on product & plant utilities |
System Components
Heating jacket (steam or hot oil)
Vacuum system (dry screw or liquid ring)
Solvent condenser
Agitator or rotor assembly
Discharge system (powder outlet, scraper, plough)
Instrumentation (PT, TT, LT)
CIP nozzles (GMP systems)
customer benefits
Uniform drying with consistent final moisture
Lower energy consumption
Suitable for heat-sensitive products
High final dryness levels
Integrated solvent recovery reduces losses
Long equipment life due to quality metallurgy
Minimal operator intervention
Ready to Optimize Your Drying Process?
Let our experts analyze your specific requirements and recommend the ideal drying solution. From initial feasibility study to full-scale deployment, we're with you every step.