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Columns - Used and Surplus Inventory | IPP

Used columns for sale: distillation and separation towers for industrial processing

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Showing 7 of 7 matching Columns.

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Stock Number: #204148
Contactor Column Kuhni Stainless Steel
Diameter (1): 320 mm
Pressure: 2 bar
Vacuum: Yes
Additional Information: 12 stages agitated extraction column R25/4 (75-375 infinitely variable) Double mechanical seal, type Crane 109/109, Driven by a 0.25kW electrical motor manufactured by BBC type eQUx71MA4, 3~/50Hz/220-380V/1400rpm EX proof (ExeG3) (2) bolt dished heads
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Featured
Stock Number: #236011
Combination Column Stainless Steel Austenitic Clad
Diameter (1): 800 mm
Pressure: 14.7 psi
Additional Information: vertical column system fully insulated and clad system includes: (1) 40 square meter 316L (1.4404) stainless steel tube, head and shell vertical heat exchanger, CE0036, manufactured by Sulzer, type NK 40m2, max allowable pressure tube side -1/6 bar @ -10/200 degrees C (265 liter), shell -1/3 bar @ -10/200 degrees C (550 liter), (192) 25.4mm OD x 2.5m long 316L (1.4404) stainless steel tubes, multi-pass tube side, 638mm diameter 316L (1.4404) stainless steel shell, 3062mm overall length, (2) 316L (1.4404) stainless steel flat heads
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Stock Number: #211512
700 mm (27.6 in) Stainless Steel Other Packed Column
Diameter (1): 700 mm
Length (overall): 8,700 mm
Pressure: 2 bar
Additional Information: 600/700mm (~24"/27.5") diameter x 8700mm (~29') high Methanol Recovery column with 600mm diameter x 1850mm length (including carbon steel feet) bottom section, openings bottom: (1) DN50, (1) DN80, openings side wall: (2) DN25, (1) DN50, (1) DN65, (1) DN300, (4) DN80 sight glass, with 600mm diameter x 1850mm length middle section, openings side wall: (4) DN25, (2) DN80 sight glass, with 600/700mm diameter x 440mm length reduction section, openings (1) DN25, (1) DN50, with 700mm diameter x 2000mm length middle section, openings side wall: (4) DN25, (2) DN80 sight glass, with 700mm diameter x 2000mm length top section, openings side wall: (4) DN25, with 700mm diameter x 550mm high top cover, openings (3) DN25, (1) DN32, (1) DN250, including (1) 700mm diameter sieve ring, (1) 600mm diameter sieve ring, (2) 600mm diameter parts
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Stock Number: #240132
Hastelloy - C276 Contactor Column
Diameter (1): 12 in
Diameter (2): 12 in
Length (overall): 120 in
Pressure: 2 bar
Temperature: 200 °C
Packing Material: Other
Additional Information: with a 304 SS jacket Extraction Contactor Column Built to code four stages solid separation. Jacket rated 2 bar @ 200 C Column outside diameter is 13" with jacket. Column built in three sections, one 30", one is 26" and one is 56" long. motor with mechanical seal
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Stock Number: #207417
Hastelloy - C276 Kuhni 722399 Contactor Column
Diameter (1): 6 in
Diameter (2): 6 in
Length (overall): 4.4 in
Pressure: 29 psi
Temperature: 329 °F
Additional Information: Agitated Seperation for liquids seperation Fabrication # 722399 jacket rated for 29 psi at 329 degrees F volume of the jacket is 2.5 gallons Motor drive flange is 11" Drive shaft is 1" SS shaft has a flex coupling Column has eight sight glasses (four on each side)
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Stock Number: #33884
457.2 mm (18 in) Stainless Steel 316 Contactor Column
Diameter (1): 18 in
Length (overall): 168 in
Pressure: 14.5 psi
Temperature: 212 °F
Additional Information: extraction column Has 1-8' section; (2) 36" long heads Unit has top entering agit Mech seal on shaft (no motor)
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Stock Number: #236010
Stainless Steel Austenitic Clad Kuhni Tray Column
Diameter (1): 800 mm
Length (overall): 9,400 mm
Pressure: 14.7 psi
Number Of Trays: 35
Additional Information: vertical tray rectification column system bolt bonnet bottom fully insulated and clad system includes: (1) 16 square meter stainless steel tube and shell vertical reboiler condenser manufactured by Kuhni, (1) 40 square meter stainless steel tube and shell horizontal heat exchanger (overhead), manufactured by Kuhni, (226) 25mm diameter x 2.5m long tubes, (2) bolt flat heads, 630mm dimeter shell, 3056mm total length, (1) 4 square meter spiral tube vertical heat exchanger, manufactured by Kuhni, operating pressure on both sides atmospheric at room temperature, weld dished top and bottom, 495mm diameter shell x 1003mm total height, (1) 10 square meter spiral tube vertical heat exchanger, manufactured by Kuhni, operating pressure on both sides atmospheric at room temperature, weld dished top and bottom, 694mm diameter shell x 1800mm total height, (1) 2500 liter 316 stainless steel horizontal tank (decanter), manufactured by Kuhni, pressure internal atmospheric, 1094mm diameter x 2500mm straight side, weld dished ends, mounted on saddles, (1) 100 m3/hr vacuum pump skid, driven by 3.6kw, 3/50/380 volt, 1450 rpm motor
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Browse pre-owned, used and surplus process columns from IPP – stainless, alloy and glass-lined units ready to ship

Improve throughput and save time and money with IPP’s in-stock distillation and absorption columns

When your process demands efficient separation, purification, or distillation, industrial columns offer scalable, high-performance solutions across a wide range of industries. With over 47 years of process equipment expertise, IPP provides immediate access to high-quality used columns sourced from 20 complete plant sites and included in our inventory of over 15,000 ready-to-ship pieces of equipment. Choosing used columns from IPP helps companies reduce capital investment, shorten project lead times, and maintain efficient separation performance.

Industrial columns are vertical vessels designed to facilitate mass transfer between phases — such as gas-liquid or liquid-liquid — making them essential for distillation, absorption, stripping, and extraction processes. Their design and internal configuration are critical to achieving precise separation efficiency.

Primary uses across industries

  • In chemical manufacturing, columns purify intermediates, separate chemical mixtures, and recover solvents.
  • In oil and gas refining, they fractionate crude oil into valuable components like gasoline, diesel, and jet fuel.
  • In pharmaceutical production, columns separate active ingredients and refine high-purity solvents.
  • In food and beverage processing, they concentrate flavors, aromas, and alcohols.
  • In environmental and wastewater treatment, they remove volatile organic compounds (VOCs) from process streams.

Types of materials processed

  • Hydrocarbon mixtures, including crude oil and natural gas liquids
  • Fine chemical and pharmaceutical intermediates
  • Food-grade alcohols, flavors, and essential oils
  • Contaminated wastewater streams needing VOC removal

Common materials of construction

Industrial columns are built for corrosion resistance, pressure tolerance, and chemical compatibility:

  • Stainless steel for food-grade, pharmaceutical, and chemical separation processes
  • Carbon steel for non-corrosive general chemical separations
  • Hastelloy, Inconel, or other alloys for highly corrosive or high-temperature services

Key features of industrial columns

  • Packed, tray, and structured designs tailored to process requirements
  • Configurations for distillation, absorption, stripping, and extraction
  • High-efficiency internals for maximizing mass transfer performance
  • Options for high-pressure or high-temperature operation
  • Customizable sizes and capacities to fit plant specifications

Learn more about distillation column design and optimization from Chemical Processing.

Find your industrial column at IPP

Search the IPP inventory or contact IPP’s equipment specialists to find a used column that matches your process separation needs. With ready-to-ship inventory, IPP helps companies improve separation efficiency, reduce downtime, and control project budgets.

FAQ

Column FAQ

Have questions about Columns or our services? Learn more about our products and why customers choose IPP.

What industries rely most on industrial columns?
Chemical, oil and gas, pharmaceutical, food and beverage, and environmental industries all depend on columns for critical separation and purification processes.
How do packed columns compare to tray columns?
Packed columns offer lower pressure drop and are ideal for small to medium flow rates, while tray columns are more robust for large flows and easier to clean and inspect.
What maintenance is required for industrial columns?
Routine maintenance includes inspecting packing or trays, checking for corrosion or fouling, verifying pressure and temperature sensors, and cleaning internals as needed.
What are the benefits of buying used or secondhand process equipment from IPP?
Buying used from IPP can save up to 70% over new equipment, provide immediate project solutions, support sustainability, and tap into over 47 years of trusted industry expertise.