Process for the thermal after-treatment of cleavage product from the acid-catalyzed cleavage of cumene hydroperoxide
AssigneePhenolchemie GmbH & Co. KG
InventorsReinhard Sigg, Uwe Tanger, Manfred Weber, Otto Schnurr, Hugo H.J.M. Liefooghe
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Abstract
The cleavage product from the acid-catalyzed cleavage of cumene hydroperoxide into phenol and acetone is subjected to thermal after-treatment by a process, which comprises heating the cleavage product in a reactor, wherein the heat supplied for the thermal treatment is the heat generated by at least one exothermic reaction which occurs in the reactor. The exothermic reaction which proceeds in the cleavage product is preferably the cleavage of cumene hydroperoxide.
Claims12
A process for the thermal after-treatment of cleavage product from the acid-catalyzed cleavage of cumene hydroperoxide to phenol and acetone, which comprises:
- subjecting cumene hydroperoxide to acid cleavage thereby producing a cleavage product containing phenol, acetone, unreacted cumene hydroperoxide and other minor products of the cleavage reaction, and
- conducting a thermal after-treatment on said cleavage product in a reactor at a temperature above 100° C., wherein the heat for the after-treatment is heat generated by at least the acid cleavage exothermic reaction of cumene hydroperoxide in the after-treatment reactor.
A process of preparing phenol, comprising:
- subjecting cumene hydroperoxide to acid cleavage thereby producing a cleavage product containing phenol, acetone, unreacted cumene hydroperoxide and other minor products of the cleavage reaction, and
- conducting a thermal after-treatment on said cleavage product in a reactor at a temperature above 100° C., wherein the heat for the after-treatment is heat generated by at least the acid cleavage exothermic reaction of cumene hydroperoxide in the after-treatment reactor, thereby producing said phenol.
Dependencies are inferred from the claim text.