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:
Jul. 03, 2007
Filed:
Apr. 28, 2004
Derek Alexander Graham, Cleveland, GB;
Paul Anthony Hamley, Nottingham, GB;
Raymond Oliver, Stockton On Tees, GB;
Martyn Poliakoff, Nottingham, GB;
Duncan C. Woodcock, Cheshire, GB;
Thomas Iikenhans, Cambridge, GB;
Derek Alexander Graham, Cleveland, GB;
Paul Anthony Hamley, Nottingham, GB;
Raymond Oliver, Stockton On Tees, GB;
Martyn Poliakoff, Nottingham, GB;
Duncan C. Woodcock, Cheshire, GB;
Thomas Iikenhans, Cambridge, GB;
Invista North America S.A.R.L., Wilmington, DE (US);
Abstract
A process for the production of an aromatic carboxylic acid comprising contacting in the presence of a catalyst, within a continuous flow reactor, one or more precursors of the aromatic carboxylic acid with an oxidant, such contact being effected with said precursor(s) and the oxidant in an aqueous solvent comprising water under supercritical conditions or near supercritical conditions close to the supercritical point such that said one or more precursors, oxidant and aqueous solvent constitute a substantially single homogeneous phase in the reaction zone, wherein the contact of at least part of said precursor with said oxidant is contemporaneous with contact of said catalyst with at least part of said oxidant.