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:
Jan. 07, 2014
Filed:
Jan. 20, 2010
Xuemei LI, Shanghai, CN;
Chunhua Qin, Shanghai, CN;
Kun Jiao, Shanghai, CN;
Shiqiang Feng, Shanghai, CN;
Yan Zhuang, Shanghai, CN;
Jianxue MA, Shanghai, CN;
Xiaodong Zhu, Shanghai, CN;
Jingming Shao, Shanghai, CN;
Xuemei Li, Shanghai, CN;
Chunhua Qin, Shanghai, CN;
Kun Jiao, Shanghai, CN;
Shiqiang Feng, Shanghai, CN;
Yan Zhuang, Shanghai, CN;
Jianxue Ma, Shanghai, CN;
Xiaodong Zhu, Shanghai, CN;
Jingming Shao, Shanghai, CN;
Shanghai Huayi Acrylic Acid Co., Ltd., Shanghai, CN;
Abstract
The present invention provides a complex oxide catalyst whose general formula is MoVCuWXYO/Z. reducing agent needs to be added into the catalyst during the preparation process of the active component of the catalyst and (or) molding process of the catalyst. Specifically, X is at least one selected from a group consisting of Nb, Sb, Sr, Ba and Te; Y is at least one selected from a group consisting of La, Ce, Nd, Sm and Cs; 'a' is ranging from 2 to 8; 'b' is ranging from 1 to 6; “c” is ranging from 0.5 to 5; “d” is ranging from 0.01 to 4; “e” is ranging from 0.01 to 4; f is determined by the oxidation state of the component element; Z is silicon powder; the reducing agent is C2˜C6 diol or polyol.