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. 17, 2015
Filed:
Apr. 14, 2014
Applicant:
Dow Global Technologies Llc, Midland, MI (US);
Inventor:
Hannah L. Crampton, Lake Jackson, TX (US);
Assignee:
Dow Global Technologies LLC, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 303/00 (2006.01); C07D 303/08 (2006.01); B01J 29/89 (2006.01); B01J 37/02 (2006.01); B01J 37/06 (2006.01); B01J 38/52 (2006.01); C07D 301/12 (2006.01);
U.S. Cl.
CPC ...
C07D 303/08 (2013.01); B01J 29/89 (2013.01); B01J 37/0203 (2013.01); B01J 37/0209 (2013.01); B01J 37/06 (2013.01); B01J 38/52 (2013.01); C07D 301/12 (2013.01);
Abstract
A pretreated titanium silicalite with MFI structure (TS-1) catalyst which has been pretreated with methanol, and then optionally filtered and optionally air-dried to form a pretreated activated TS-1 catalyst. The activated TS-1 may be used in an epoxidation reaction with no additional methanol added and has equivalent activity to TS-1 used with large excesses of methanol. By removing the need for additional methanol during the reaction, the losses of epichlorohydrin from solvolysis are minimized significantly.