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:
Mar. 20, 2018
Filed:
Jul. 03, 2015
National University Corporation Hokkaido University, Hokkaido, JP;
Clariant Catalysts (Japan) K.k., Tokyo, JP;
Atsushi Fukuoka, Hokkaido, JP;
Hirokazu Kobayashi, Hokkaido, JP;
Bo Feng, Hokkaido, JP;
Haruka Yokoyama, Hokkaido, JP;
Xin Chen, Toyama, JP;
CLARIANT CATALYSTS (JAPAN) K.K., Tokyo, JP;
NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY, Hokkaido, JP;
Abstract
The present invention addresses the problem of providing a solid catalyst capable of achieving high selectivity and high yield for isosorbide, preferably at the same time, in a dehydration reaction by which dianhydrosugar alcohol is obtained from a sugar alcohol, particularly, in a dehydration reaction by which isosorbide is obtained from sorbitol. The above-mentioned problem is solved by a solid catalyst for a dehydration reaction for preparing dianhydrosugar alcohol from sugar alcohol, said catalyst including an H-type β zeolite having an atomic composition ratio of Si to Al (Si/Al) of more than 20.