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:
Nov. 20, 2001
Filed:
Sep. 10, 1999
Applicant:
Inventor:
Ramzi Yanni Saleh, Baton Rouge, LA (US);
Assignee:
ExxonMobil Chemical Co., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 4/500 ; C07C 5/116 ; C07C 6/314 ; C07C 6/500 ;
U.S. Cl.
CPC ...
C07C 4/500 ; C07C 5/116 ; C07C 6/314 ; C07C 6/500 ;
Abstract
A process for the carbonylation of alkyl aromatic compounds uses acidic ionic liquids. In one embodiment, the ionic liquid is intrinsically acidic, having an anion mole fraction of greater than 0.5. The ionic liquids include those comprised of a quaternary nitrogen-containing cation and a metal halide anion. The process provides for good conversion and selectivity in the production of the corresponding aromatic aldehyde compound.