Process for manufacturing bisphenols

Details Process for manufacturing bisphenols Process for manufacturing bisphenols

C - Chemistry, Metallurgy

07

C

C07C 37/84 (2006.01) C07C 37/68 (2006.01) C07C 39/16 (2006.01) C07C 39/17 (2006.01)

Patent

CA 2044247

ABSTRACT A method of recovering or purifying bisphenols, in particular bisphenol A, from crude product prepared in accordance with any prior art process, characterized by the fact that theses crude products, possibly after removal of low boiling compounds and excess phenol, are recovered or worked up from solvents by crystallization from high-boiling aromatic hydrocarbons (HBS) having a boiling point which is above 200°C and below the boiling point of the bisphenols. H:34262.PAT

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