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:
Sep. 04, 1979
Filed:
Dec. 05, 1977
Applicant:
Inventor:
David R Wagner, Cleveland, OH (US);
Assignee:
The Standard Oil Company, , US;
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; B01D / ; C07C / ;
U.S. Cl.
CPC ...
203 82 ; 203 16 ; 203 57 ; 203 69 ; 203 70 ; 203 74 ; 203 75 ; 203 81 ; 203D / ; 203D / ; 562600 ; 562608 ;
Abstract
The separation of acrylic acid from a mixture of acrylic acid and acetic acid found in the reaction product stream obtained in the process of producing acrylic acid by the oxidation of propylene or acrolein is improved by removing a vapor sidestream from the solvent recovery column found in the process. Acetic acid is then separated from this stream without the addition of external heat.