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. 30, 2008
Filed:
Nov. 22, 2006
Won Ho Lee, Daejeon, KR;
Hyun Kyung Yoon, Seoul, KR;
Dong IL Lee, Gyeonggi-do, KR;
Jong Hyun Chae, Daejeon, KR;
Ji Hyang Son, Busan, KR;
IN Kyu Park, Daejeon, KR;
Won Jae Lee, Daejeon, KR;
Won Ho Lee, Daejeon, KR;
Hyun Kyung Yoon, Seoul, KR;
Dong Il Lee, Gyeonggi-do, KR;
Jong Hyun Chae, Daejeon, KR;
Ji Hyang Son, Busan, KR;
In Kyu Park, Daejeon, KR;
Won Jae Lee, Daejeon, KR;
LG Chem, Ltd., Seoul, KR;
Abstract
A catalyst for gas phase oxidation of methylbenzenes in the presence of molecular oxygen to produce corresponding aromatic aldehydes, a method for preparing the catalyst, and a method for producing aromatic aldehydes from methylbenzenes by using the catalyst. The catalyst comprises a compound represented by the following formula (1):WXYO  (1) wherein W represents a tungsten atom, X represents one or more alkali metals selected from the group consisting of Li, Na, K, Rb, and Cs, Y represents one or more elements selected from the group consisting of Fe, Co, Ni, Cu, Mn, Re, Cr, V, Nb, Ti, Zr, Zn, Cd, Y, La, Ce, B, Al, Sn, Mg, Ca, Sr, and Ba, O stands for an oxygen atom, and the ratio of a:b:c is 12:0.001˜1:0˜5.