Patent ID: 8957246
Filing Date: 2015-02-17
Classification: A01N,C07C

Abstract:
1. A method for making a peroxycarboxylic acid, comprising: providing a liquid composition of a carboxylic acid and an oxidizing agent; pretreating the liquid composition with a pretreatment column to remove metal ion from the mixed composition, wherein the pretreatment column comprises a removable cartridge; measuring a condition of the liquid composition, wherein the condition comprises pressure i) before pretreating and ii) at site of pretreating during pretreating; determining a difference between i) and ii); providing a detectable signal if the difference meets or exceeds a predetermined value; reacting the pretreated composition in the presence of a reaction catalyst that can be physically removed from reaction mixture to produce a peroxycarboxylic acid composition; and recovering the peroxycarboxylic acid composition.