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:
Oct. 04, 2011
Filed:
Oct. 13, 2009
Mark E. Nelson, Mount Vernon, IN (US);
Arkady Samuilovich Dykman, St. Petersburg, RU;
Andrey Vladimirovich Zinenkov, St. Petersburg, RU;
Victor Vladimirovich Pinson, St. Petersburg, RU;
Ilja Nikolayevich Grebenshchikov, St. Petersburg, RU;
Dmitrij Nikolayevich Zhukov, St. Petersburg, RU;
Mark E. Nelson, Mount Vernon, IN (US);
Arkady Samuilovich Dykman, St. Petersburg, RU;
Andrey Vladimirovich Zinenkov, St. Petersburg, RU;
Victor Vladimirovich Pinson, St. Petersburg, RU;
Ilja Nikolayevich Grebenshchikov, St. Petersburg, RU;
Dmitrij Nikolayevich Zhukov, St. Petersburg, RU;
Sabic Innovative Plastics IP B.V., Bergen Op Zoom, NL;
Abstract
A method for producing phenol and acetone in a multi-stage process at an elevated temperature from a cumene hydroperoxide mixture comprising cumene, the method comprising the steps of a) reacting the cumene hydroperoxide mixture with a 2-hydroxybenzenesulfonic acid catalyst having a concentration of 0.1 to 1 mmol/L acid catalyst to form a second mixture comprising phenol, acetone and dicumyl peroxide in a first stage and decomposing the second mixture in a second stage to produce a third mixture comprising phenol and acetone.