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. 30, 1996
Filed:
Jan. 19, 1994
Applicant:
Inventors:
Assignee:
Korea Institute of Science and Technology, Seoul, KR;
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ; C07C / ;
U.S. Cl.
CPC ...
560232 ; 562891 ; 562608 ;
Abstract
The present invention provides an improved process for selectively producing acetic acid and/or methyl acetate by the gas phase carbonylation of methanol with carbon monoxide; an improved process for producing acetic anhydride directly from the methyl acetate; and a novel method for sustaining the life time of a carbonylation or a hydroformylation catalyst by pretreating the carbon monoxide or the synthesis gas to be used in carrying out the gas phase carbonylation or the hydroformylation.