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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 12440826 B1

PDFFull Text
Date of Patent:
Oct. 14, 2025

Filed:

Nov. 27, 2020

Nitrogen-phosphorus-modified granular carbon-supported bimetallic catalyst, preparation method therefor and use thereof

Applicants:

Zhejiang Lantian Environmental Protection Hi-tech Co., Ltd., Hangzhou, CN;

Zhejiang Research Institute of Chemical Industry Co., Ltd., Hangzhou, CN;

Sinochem Lantian Co., Ltd., Hangzhou, CN;

Inventors:

Wucan Liu, Hangzhou, CN;

Ling Li, Hangzhou, CN;

Chaofeng Ma, Hangzhou, CN;

Nengfu Shi, Hangzhou, CN;

Jiamin Jin, Hangzhou, CN;

Xiaonian Li, Hangzhou, CN;

Chunshan Lu, Hangzhou, CN;

Juanjuan Nie, Hangzhou, CN;

Assignees:

ZHEJIANG LANTIAN ENVIRONMENTAL PROTECTION HI-TECH CO., LTD., Hangzhou, CN;

ZHEJIANG RESEARCH INSTITUTE OF CHEMICAL INDUSTRY CO., LTD., Hangzhou, CN;

SINOCHEM LANTIAN CO., LTD., Hangzhou, CN;

Attorney:

Muncy, Geissler, Olds & Lowe, P.C.

Primary Examiner:

Cam N Nguyen

Int. Cl.
CPC ...
B01J 21/18 (2006.01); B01J 23/06 (2006.01); B01J 23/14 (2006.01); B01J 23/40 (2006.01); B01J 23/42 (2006.01); B01J 23/44 (2006.01); B01J 23/46 (2006.01); B01J 23/60 (2006.01); B01J 23/62 (2006.01); B01J 23/72 (2006.01); B01J 23/80 (2006.01); B01J 23/85 (2006.01); B01J 23/89 (2006.01); C07C 17/23 (2006.01);
U.S. Cl.
CPC ...
B01J 23/40 (2013.01); B01J 23/06 (2013.01); B01J 23/14 (2013.01); B01J 23/72 (2013.01); C07C 17/23 (2013.01);
Abstract

Provided are a nitrogen-phosphorus-modified granular carbon-supported bimetallic catalyst, a preparation method thereof and the use thereof. The catalyst comprises a nitrogen-phosphorus-modified carbon carrier and metal particles supported on the carbon carrier. The metal particles include first metal elementary substance particles, second metal elementary substance particles and bimetallic alloy phase particles. The percentage of the bimetallic alloy phase particles in the metal particles is ≥80%, and at least 90% of the alloy phase particles have a size of 1 nm to 20 nm. The catalyst has advantages such as a high proportion of alloy phase particles, a uniform particle size distribution, a high metal utilization rate, low costs, high stability and a high catalytic activity.

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