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:
May. 10, 2022
Filed:
Dec. 04, 2015
Applicants:
Shanghai Huayi New Material Co., Ltd., Shanghai, CN;
Shanghai Huayi Acrylic Acid Co., Ltd., Shanghai, CN;
Inventors:
Xin Wen, Shanghai, CN;
Ge Luo, Shanghai, CN;
Xinlei Jin, Shanghai, CN;
Chunhua Qin, Shanghai, CN;
Tonghao Wu, Shanghai, CN;
Yan Zhuang, Shanghai, CN;
Jianxue Ma, Shanghai, CN;
Xiaodong Chu, Shanghai, CN;
Jinhua Ji, Shanghai, CN;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 37/02 (2006.01); B01J 27/199 (2006.01); C07C 51/25 (2006.01); B01J 37/00 (2006.01); B01J 35/02 (2006.01);
U.S. Cl.
CPC ...
B01J 27/199 (2013.01); B01J 35/023 (2013.01); B01J 37/0018 (2013.01); B01J 37/0045 (2013.01); C07C 51/252 (2013.01);
Abstract
Disclosed is a method for preparing a heteropolyacid salt catalyst, comprising dissolving the lead compounds for each element to prepare a suspension and dispersion slurry of catalyst precursor, which comprises all of the catalyst components; drying the catalyst precursor, mixing them with an organic compound, molding, and calcining to produce the catalyst.