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:
Jun. 30, 2020
Filed:
Dec. 26, 2018
Applicant:
Industrial Technology Research Institute, Hsinchu, TW;
Inventors:
Assignee:
INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, Hsinchu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 68/04 (2006.01); B01J 21/06 (2006.01); B01J 23/10 (2006.01);
U.S. Cl.
CPC ...
C07C 68/04 (2013.01); B01J 21/066 (2013.01); B01J 23/10 (2013.01);
Abstract
A method for preparing dialkyl carbonate is provided. The preparation method includes the following steps. An alcohol compound, carbon dioxide and a catalyst are mixed to form a mixing solution. Organic acid is added to the mixing solution to carry out a synthesis reaction of dialkyl carbonate. The alcohol compound includes methanol, ethanol, propanol or butanol. The catalyst includes cerium oxide, zirconium oxide, titanium oxide, lanthanum oxide or a combination thereof. The organic acid includes formic acid, acetic acid, propionic acid, butyric acid, valeric acid or a combination thereof.