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 7288500 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 30, 2007

Filed:

Aug. 31, 2005
Applicants:

Changkun Liu, Lawrenceville, NJ (US);

Bing Zhou, Cranbury, NJ (US);

Inventors:

Changkun Liu, Lawrenceville, NJ (US);

Bing Zhou, Cranbury, NJ (US);

Assignee:

Headwaters Technology Innovation, LLC, Lawrenceville, NJ (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 31/00 (2006.01); C07C 209/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A supported catalyst for hydrogenating nitro groups of halonitro compounds manufactured from a support, a solvent, and a plurality of organometallic complexes. The organometallic complexes have the formula: wherein, R-R, are independently an R, OR, OC(═O)R, halogen, or combination thereof, where R stands for an alkyl or aryl group; Y-Yare independently an O, S, N, or P atom; and M is a metal atom. The supported catalysts show much higher selectivity and activity when used to hydrogenate nitro groups on halonitro aromatic compounds than catalyst currently being used for such hydrogenation.


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Liu, Changkun. (2007). Selective hydrogenation of nitro groups of halonitro aromatic compounds (U.S. Patent No. 7288500). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7288500

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