Extraction 18″ Extraction Column Applications: liquid extraction, performance of trays and packings, axial mixing, backmixing Construction: carbon steel Column Diameter: 16.8 in (i.d.); 18 in (o.d.) Pressure: 0 – 5 psig Feed Rate: 5 – 30 gpm Contacting Height: 20 ft Temperature: 60 – 150 °F Solvent Rate: 5 – 30 gpm 4″ Extraction Column Applications: liquid extraction, performance of trays and packings, membrane extraction, testing at chemical plants Construction: glass; skid mounted; portable Column Diameter: 4 in (i.d.) Pressure: 0 – 5 psig Feed Rate: 0.05 – 2 gpm Temperature: 60 – 150 °F Solvent Rate: 0.05 – 2 gpm