Patent ID: 9487464
Filing Date: 2016-11-08
CPC Classification: C07C

Claim Text:
1. A treatment device for purifying acetic acid comprising: a purification column comprising a resin disposed within a liquid filled inner chamber bound by a plurality of sides radially arranged about a central axis; an inlet end in fluid communication with, and longitudinally separated from, an outlet end through the inner chamber; a plurality of sampling ports disposed through at least one of the sides, each comprising: a first open flow path between a sample inlet located within the inner chamber and a first flow control element located external to the inner chamber, which is operable between a closed position and an open position to obtain a sample of the resin and optionally the liquid present at a location within the inner chamber proximate to the sample inlet; and a second flow path comprising a porous element disposed between the sample inlet and a second flow control element located external to the inner chamber, which is operable between a closed position and an open position to obtain a sample of only the liquid present at the location within the inner chamber proximate to the sample inlet.