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:
Apr. 29, 2008
Filed:
Feb. 01, 2006
Hyun Jong Shin, Gwangju, KR;
Byung Yul Choi, Naju-si, KR;
Young Jin Cho, Naju-si, KR;
Yeon Shick Yoo, Naju-si, KR;
Young Hyun Choi, Jeollanam-do, KR;
Duk Ki Kim, Gwangju, KR;
Joo Yeon Park, Gwangju, KR;
Hyun Jong Shin, Gwangju, KR;
Byung Yul Choi, Naju-si, KR;
Young Jin Cho, Naju-si, KR;
Yeon Shick Yoo, Naju-si, KR;
Young Hyun Choi, Jeollanam-do, KR;
Duk Ki Kim, Gwangju, KR;
Joo Yeon Park, Gwangju, KR;
LG Chem, Ltd., , KR;
Abstract
Disclosed is a method for producing unsaturated fatty acids from unsaturated aldehydes by means of fixed-bed catalytic partial oxidation in a shell-and-tube reactor, characterized in that the reactor includes a reaction zone for producing unsaturated fatty acids, the reaction zone having an inactive material layer inserted into a position where a hot spot is to be generated in a reaction tube. A fixed-bed shell-and-tube reactor for use in the above method is also disclosed. According to the present invention, at least one layer of inactive material is packed at the point of a hot spot to control the hot spot temperature efficiently, thereby increasing the lifetime of a catalyst and producing unsaturated fatty acids with high yield.