Removal of brominated organics from acetic acid obtained by oxid

Details Removal of brominated organics from acetic acid obtained by oxid Removal of brominated organics from acetic acid obtained by oxid

1984-04-23

1986-11-18

Bascomb, Wilbur

Distillation: processes, separatory

And returning product of distillation step to distillation zone

203 99, 203DIG19, 562608, C07C 5144

Patent

active

046234322

ABSTRACT:
The recovery of an acetic acid product of low brominated organics content can be made from the liquid effluent from n-butane oxidation with oxygen gas in the presence of an acetic acid solution containing ion of bromine in combination with ions of cobalt or with ions of manganese and cobalt. Such recovery is made not by the use of a series of separate fractionation towers but rather by the use of a single fractionation tower having a top rectification zone, an intermediate stripping zone with a feed inlet at the top thereof and a bottom reboiler zone below the stripping zone wherein the acetic acid product is removed as a vapor product from said stripping zone below said feed inlet but above the reboiler zone.

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