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:
Sep. 29, 2020
Filed:
Jul. 17, 2015
Applicant:
Tricoya Technologies Ltd, London, GB;
Inventors:
Stephen John Benstead, London, GB;
Benjamin Thomas Painter, London, GB;
Assignee:
Tricoya Technologies Ltd, London, GB;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07C 51/56 (2006.01); C07C 51/44 (2006.01); B27K 3/34 (2006.01);
U.S. Cl.
CPC ...
C07C 51/56 (2013.01); B27K 3/34 (2013.01); C07C 51/44 (2013.01); B27K 3/346 (2013.01); Y02P 20/582 (2015.11);
Abstract
Disclosed is the integration of the production of acetic anhydride from ketene, and the acetylation of wood using acetylation fluid comprising acetic acid and acetic anhydride. The invention involves recirculating acetylation fluid recovered from wood acetylation to a unit for the production of acetic anhydride from acetic acid and ketene. The acetic anhydride product stream can, in turn, be directly used as a wood acetylation fluid.