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. 04, 1996
Filed:
May. 11, 1994
Applicant:
Inventors:
Jeffrey P Kingsley, Newburgh, NY (US);
Anne K Roby, Peekskill, NY (US);
Assignee:
Praxair Technology, Inc., Danbury, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
562416 ; 422225 ;
Abstract
The oxidation of p-xylene to produce terephthalic acid is carried out using pure or nearly pure oxygen and evaporative cooling. By-product and waste generation are reduced, oxygen utilization is enhanced, desirable operating conditions are employed, and the need for direct contact heat exchange surfaces in the reactor vessel is obviated.