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:
Oct. 13, 2015
Filed:
Jan. 21, 2014
Applicant:
Exxonmobil Chemical Patents Inc., Baytown, TX (US);
Inventors:
Assignee:
ExxonMobil Chemical Patents Inc., Baytown, TX (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01J 8/06 (2006.01); B01J 4/00 (2006.01); C07C 51/265 (2006.01);
U.S. Cl.
CPC ...
B01J 8/067 (2013.01); B01J 4/002 (2013.01); B01J 8/065 (2013.01); C07C 51/265 (2013.01); B01J 2208/00176 (2013.01); B01J 2208/00849 (2013.01); B01J 2208/00902 (2013.01);
Abstract
In the production of phthalic anhydride by the oxidation of ortho-xylene with air, the ortho-xylene loading is increased without increasing the likelihood of explosion by insulating the system to avoid cold spots to keep the ortho-xylene at a temperature above its dew point; in addition the system may be electrically interconnected and grounded to reduce the risk of spark initiated explosions or deflagrations.