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:
Feb. 24, 2015
Filed:
Jan. 27, 2012
Chien-chuan Shih, Taipei, TW;
Cheng-fa Hsieh, Taipei, TW;
Hung-hung Hseuh, Taipei, TW;
Tung-han Tsai, Taipei, TW;
Chien-Chuan Shih, Taipei, TW;
Cheng-Fa Hsieh, Taipei, TW;
Hung-Hung Hseuh, Taipei, TW;
Tung-Han Tsai, Taipei, TW;
China Petrochemical Development Corporation, Taipei, TW;
Abstract
The present invention provides a catalyst composition and a method for preparing an amide. The catalyst composition of the present invention including a hydroxylamine salt, sulfuric acid, and a nitrogen-containing heterocyclic compound is used for catalyzing a ketoxime to form an amide in the Beckman rearrangement reaction. The preparation of an amide by using the catalyst composition of the present invention has high conversion rate of a ketoxime, high selectivity of an amide and high tolerance to water.