The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 29, 2003
Filed:
May. 03, 2001
Applicant:
Inventors:
Reinhard Sigg, Marl, DE;
Uwe Tanger, Bochum, DE;
Manfred Weber, Haltern, DE;
Otto Schnurr, Kapellen, BE;
Hugo H.J.M. Liefooghe, Edegem, BE;
Assignee:
Phenolchemie GmbH & Co. KG, Gladbeck, DE;
Primary Examiner:
Int. Cl.
CPC ...
C07C 3/708 ;
U.S. Cl.
CPC ...
C07C 3/708 ;
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.