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Liquid - Liquid Extraction

BASF Ionic Liquids Portfolio

Extracting polar By-products




Scheme: extraction

Phenol usually extracted with aq NaOH

product (R') decomposes under basic conditions

solution: extraction with acidic IL
(EMIM HSO4)

Yield (R'): 98%

Phenol removal:
2,2%  0,1% (1st extraction)
0,1%  45 ppm (2nd extraction)



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