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:
Oct. 09, 2018
Filed:
Feb. 18, 2013
Applicant:
Lucite International Uk Limited, Southampton, GB;
Inventors:
Assignee:
LUCITE INTERNATIONAL UK LIMITED, Southampton, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C02F 1/44 (2006.01); B01D 71/02 (2006.01); B01D 61/36 (2006.01); C07C 45/78 (2006.01); C07C 67/343 (2006.01); C07C 67/56 (2006.01); C02F 101/34 (2006.01);
U.S. Cl.
CPC ...
C02F 1/448 (2013.01); B01D 61/362 (2013.01); B01D 71/028 (2013.01); C07C 45/786 (2013.01); C07C 67/343 (2013.01); C07C 67/56 (2013.01); C02F 2101/34 (2013.01); Y02P 20/582 (2015.11);
Abstract
Disclosed are methods for dehydrating a water containing source of formaldehyde in which water is separated from the water containing source of formaldehyde using a zeolite membrane. In certain aspects, the water containing source of formaldehyde includes a separation enhancer having a relative static permittivity ranging from 2.5 to 20, and the water containing source of formaldehyde may further include methanol. In certain aspects, (meth)acrylic acid alkyl ester may be produced using the dehydrated source of formaldehyde.