Removal of propylene glycol and propylene glycol ethers from...

C - Chemistry – Metallurgy – 02 – F

Patent

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C02F 1/26 (2006.01) C07D 301/32 (2006.01)

Patent

CA 2567593

An aqueous stream containing propylene glycol and/or ethers thereof is treated by counter current liquid-liquid extraction with propylene and/or propane to separate the propylene glycol and/or ether from the aqueous stream.

Un flux aqueux contenant du propylène glycol et/ou des éthers correspondants est traité par une extraction à contre-courant liquide-liquide avec du propylène et/ou du propane pour séparer le propylène glycol et/ou un éther à partir du flux aqueux.

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