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:
Feb. 07, 2006
Filed:
Nov. 03, 2000
Takeshi Nishimura, Himeji, JP;
Masakatsu Mori, Hyogo, JP;
Masatsugu Kitaura, Himeji, JP;
Osamu Dodo, Hyogo, JP;
Michio Tanimoto, Himeji, JP;
Takeshi Nishimura, Himeji, JP;
Masakatsu Mori, Hyogo, JP;
Masatsugu Kitaura, Himeji, JP;
Osamu Dodo, Hyogo, JP;
Michio Tanimoto, Himeji, JP;
Nippon Shokubai Co., LTD., Osaka, JP;
Abstract
In a shell-and-tube type reactor, the leakage between the upper and lower chambers is substantially decreased by tightly fitting the reaction tubes to the shield. The present invention provides a reactor for use in catalytic gas phase oxidation characterized by expanding reaction tubes to at least one groove formed in the reaction tube-fixing part of an intermediate tube sheet to form a shield, thereby forming plural of chambers with the intermediate tube sheet, and forming an expansion joint around the periphery of each of the chambers.