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:
Jan. 10, 2006
Filed:
Dec. 16, 2002
Doron Levin, Annandale, NJ (US);
C. Morris Smith, West University Place, TX (US);
Jose Guadalupe Santiesteban, Baton Rouge, LA (US);
James C. Vartuli, Schwenksville, PA (US);
Doron Levin, Annandale, NJ (US);
C. Morris Smith, West University Place, TX (US);
Jose Guadalupe Santiesteban, Baton Rouge, LA (US);
James C. Vartuli, Schwenksville, PA (US);
ExxonMobil Chemical Patents Inc., Houston, TX (US);
Abstract
A process is disclosed for producing α-methylstyrene, acetone, and phenol wherein the amount of α-methylstyrene produced may be controlled by selectively converting a portion of the cumene hydroperoxide to dimethyl phenyl carbinol, the hydrated form of α-methylstyrene. The dimethyl phenyl carbinol thus produced will lead to increased production of α-methylstyrene upon dehydration in the acid cleavage unit of the phenol plant. By controlling the fraction of the cumene hydroperoxide reduced to dimethyl phenyl carbinol, the amount of α-methylstyrene produced in the plant can be continuously set to meet the demand of the market for α-methylstyrene. Also disclosed is a non-acidic catalyst for reduction of cumene hydroperoxide.