High capacity purification of thermally unstable compounds

摘要

Separations processes and apparati capable of purifying thermally sensitive materials at high capacity. An apparatus having a rectification section and a stripping section with the stripping section having a stripping tray with 5 to 50 % open area, a pressure drop from 138 Pa (0,02 psi) to 1379 Pa (0,2 psi) and a tray efficiency during operation of the column which is equal to or greater than 20%.