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Monitoring column breakthrough in a process for removing fluorosurfactant from aqueous fluoropolymer dispersions
Monitoring column breakthrough in a process for removing fluorosurfactant from aqueous fluoropolymer dispersions
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机译:监测从水性含氟聚合物分散体中除去含氟表面活性剂的过程中的色谱柱突破情况
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摘要
A process for reducing the fluorosurfactant content of a stabilized fluorosurfactant-containing aqueous fluoropolymer dispersion by passing dispersion through a first fixed bed of anion exchange resin to reduce fluorosurfactant content. The first fixed bed has a working zone which moves though the column as the ion exchange resin is saturated. The process includes monitoring a property of the dispersion as the dispersion exits the fixed bed to determine break though of the working zone indicating saturation of the fixed bed. The property being monitored is selected from the group consisting of pH and conductivity.
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