logo

For the Inventor, By the Inventor

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.:

US 8507626 B1

PDFFull Text
Date of Patent:
Aug. 13, 2013

Filed:

May. 28, 2008

Catalyst for producing of acrylic acid, method for producing acrylic acid using the catalyst and method for producing water-absorbent resin using the acrylic acid

Applicants:

Naohiro Fukumoto, Aioi, JP;

Toshiya Nishiguchi, Himeji, JP;

Inventors:

Naohiro Fukumoto, Aioi, JP;

Toshiya Nishiguchi, Himeji, JP;

Assignee:

Nippon Shokubai Co., Ltd., Osaka, JP;

Attorney:

Wenderoth, Lind & Ponack, L.L.P.

Primary Examiner:

Michael M Bernshteyn

Int. Cl.
CPC ...
C08F 20/06 (2006.01); C08F 4/22 (2006.01); B01J 23/22 (2006.01); B01J 21/06 (2006.01); B01J 23/28 (2006.01); C07C 51/235 (2006.01); C07C 51/215 (2006.01);
U.S. Cl.
CPC ...
Abstract

The invention provides a catalyst for producing acrylic acid at high yield for a long time, in a method for producing acrylic acid by catalytic gas phase oxidation of propane and/or acrolein in the presence of molecular oxygen or a molecular oxygen-containing gas. This catalyst comprises a complex oxide containing molybdenum, vanadium and X component (here the X component is at least one element selected from antimony, niobium and tin) as the essential components, and is characterized in that its main peak as measured by X-ray diffractiometry using Kα ray of Cu, d=4.00±0.1 angstrom, and in that the particle size of the X component in the catalyst does not exceed 20 μm.

Find Patent Forward Citations

Fukumoto, Naohiro. (2013). Catalyst for producing of acrylic acid, method for producing acrylic acid using the catalyst and method for producing water-absorbent resin using the acrylic acid (U.S. Patent No. 8507626). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8507626

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…