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:
Jun. 23, 1998
Filed:
Dec. 21, 1995
Applicant:
Inventors:
Ki-Joo Kim, Suwon-si, KR;
Hang Duk Roh, Suwon-si, KR;
Assignee:
Sunkyong Industries, Kyunggi-do, KR;
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
562608 ; 203 88 ;
Abstract
The present invention is a reactive distillation process for methyl acetate hydrolysis comprising a rectifying section a reaction section and a stripping section. A water stream is fed into the upper portion of the rectifying or reaction zone and a methyl acetate stream is fed into the lower portion of the reaction zone which contains packings made of ion exchange resin. The products, acetic acid and methanol, are continuously produced from the bottom of the apparatus.