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:
Aug. 06, 2019
Filed:
May. 09, 2013
Wanhua Chemical Group Co., Ltd., Yantai, CN;
Wanhua Chemical (Ningbo) Co., Ltd., Yantai, CN;
Lei Qin, Yantai, CN;
Weiqi Hua, Yantai, CN;
Ruihua Cheng, Yantai, CN;
Yuan Li, Yantai, CN;
Baiping Liu, Yantai, CN;
Bingbo Hu, Yantai, CN;
Wanhua Chemical Group Co., Ltd., Shandong, CN;
Wanhua Chemical (Ningbo) Co., Ltd., Shandong, CN;
Abstract
The present invention relates to a composite catalyst, preparation process thereof, and process for catalyzing the trimerization of butadiene using the composite catalyst. The composite catalyst comprises: (A) a titanium compound catalyst active component, (B) an organometallic compound co-catalyst component, (C) a sulfoxide compound catalyst-modifying component, (D) a monoester compound catalyst-modifying component, and (E) a solvent component. The composite catalyst has advantages of excellent selectivity, high catalytic activity, easy preparation and so on.