Distillation Columns

Product Overview

Our fluorine lined distillation tower (corrosion-resistant distillation column) is purpose-built for aggressive chemical environments, delivering reliable separation performance even with strong acids, alkalis, and corrosive solvents. Unlike standard steel towers, our carbon steel shell lined with PTFE/PFA/PVDF provides excellent chemical inertness while maintaining structural strength, making it ideal for long-term continuous distillation in the chemical, pharmaceutical, and fine chemical industries.

Designed to meet strict pressure vessel standards, the tower supports vacuum, atmospheric, and positive pressure operations, with fully customizable internals (trays or packings) to match your separation efficiency and purity requirements.

Key Features & Advantages

✅ Total Corrosion Protection for Harsh MediaFluorine lining (PTFE/PFA/PVDF) eliminates direct contact between corrosive fluids and the steel shell, effectively resisting hydrochloric acid, sulfuric acid, organic solvents, and strong alkalis. The lining has low permeability, preventing media penetration and extending equipment service life.

✅ High-Performance Mass Transfer DesignAvailable with structured packing, random packing, or sieve trays, the tower ensures uniform vapor-liquid distribution and high separation efficiency. Optional anti-foam internals and redistribution trays reduce entrainment, boosting product yield and purity.

✅ Wide Operating Range & Versatile Configuration

• Operating temperature: -20℃ to 200℃ (fluorine lined)

• Operating pressure: -0.1MPa (vacuum) to 1.6MPa (positive pressure)

• Fully customizable diameter, height, nozzle layout, and internals

• Vertical/horizontal design options to fit your plant footprint

✅ Safety-Engineered ConstructionBuilt to ASME/GB150 standards, with full factory hydrostatic testing and lining quality inspection (spark test). Precision flanged connections with corrosion-resistant gaskets ensure leak-free operation.

✅ Low Total Cost of OwnershipThe fluorine lined design eliminates the need for expensive alloy materials, reducing upfront investment. With minimal maintenance and long lining service life, the tower delivers stable performance for years, lowering downtime and replacement costs.

Applications

• Chemical Industry: Distillation and purification of corrosive acids, solvents, and intermediate chemicals

• Pharmaceutical & Fine Chemicals: Solvent recovery, API purification, and high-purity distillation under vacuum

• Environmental Protection: VOC recovery, waste gas scrubbing, and wastewater treatment processes

• Specialty Industries: Chlor-alkali production, fluorine chemical processing, and aggressive media separation

Working Principle

The fluorine lined distillation tower works on the same principle as conventional distillation, with added corrosion protection:

The feed mixture enters the tower and is heated to generate vapor

Vapor rises through trays or packings, while liquid flows downward in countercurrent contact

Repeated condensation and vaporization separate components based on boiling point differences

The fluorine lining protects the tower shell from corrosive vapors and liquids, ensuring long-term integrity

Purified products are collected from the overhead distillate and bottom residue outlets

Our Service & Support

• Custom engineering design based on your process flow and media composition

• Full factory inspection, pressure testing, and lining spark test before delivery

• Installation drawings, on-site guidance, and commissioning support

• After-sales maintenance, lining repair, and spare parts supply

• Process simulation and optimization consultation to improve separation efficiency