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:
May. 01, 1979
Filed:
Jan. 30, 1975
Applicant:
Inventors:
Assignee:
Mitsubishi Chemical Industries Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
560244 ; 568858 ;
Abstract
Disclosed is a method of recovering butadiene gas from an acetoxylation process which method comprises steps: (a) contacting a butadiene-containing gas with acetic acid to effect the absorption of butadiene in acetic acid, (b) recycling the acetic acid containing butadiene to the acetoxylation process, (c) contacting the waste gas containing acetic acid from step (a) with water to effect the absorption of acetic acid in water and (d) recycling the water containing acetic acid to hydrolysis step of the acetoxylation product.