High performance, low cost, Microscale Spinning Band Distillation Column system effective in separating low-boiling liquid mixtures with volumes in the 0.5 to 5 mL range.

• Separates close-boiling mixtures
• Achieves height equivalent/theoretical plate values approaching 0.2"/plate within 90 minutes of boil-up
• Utilizes PTFE band uniquely driven by a bottom magnet

Designed by Drs

The column top joint is a combination cap, thread and standard taper joint to accommodate and seal other microscale apparatus. The O.D. of the top joint has an external thread to facilitate an O-Ring and open-top phenolic cap. The internal or I.D. at the top is a ground standard taper 14/10 outer joint. Inner standard taper joint at bottom and standard taper 7/10 inner drip tip on takeoff arm. Body is vacuum jacketed. Band is virgin PTFE spiral with permanently attached “V” bottom magnet.

Dana Mayo, Ronald M. Pike, and Samuel S. Butcher, authors of Microscale Organic Laboratory, John Wiley and Sons, New York, this 2.5" microdistillation column separates close-boiling (5-10° C) mixtures without stopcocks, utilizing a PTFE band uniquely driven by a bottom magnet. Coupled to a conventional magnet stirrer, experimental data indicate satisfactory performance at 1000 rpm. Column has been shown to achieve height equivalent/theoretical plate values approaching 0.2"/plate within 90 minutes of boil-up.