Patent ID: 9206149
Filing Date: 2015-12-08
Classification: C07D

Abstract:
1. A process to produce a carboxylic acid composition, said process comprising: (a) oxidizing in an primary oxidation zone an oxidizable compound in a oxidizable raw material stream in the presence of a solvent stream, an oxidizing gas stream, and a catalyst system to produce a carboxylic acid composition comprising furan-2,5-dicarboxylic acid (FDCA), wherein said oxidizable raw material stream comprises at least one compound selected from the group consisting of 5-(hydroxymethyl)furfural (5-HMF), 5-HMF esters (5-R(CO)OCH wherein said catalyst system comprises cobalt, manganese, and bromine; (b) routing the carboxylic acid composition to a solid-liquid separation zone to generate a mother liquor stream and a wet carboxylic acid composition; (c) routing the wet carboxylic acid composition to a drying zone to produce a dried crude carboxylic acid composition.