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1. (WO2014209112) PROCESS FOR THE PREPARATION OF 2,5-FURANDICARBOXYLIC ACID
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2014/209112    International Application No.:    PCT/NL2014/050411
Publication Date: 31.12.2014 International Filing Date: 20.06.2014
Chapter 2 Demand Filed:    14.01.2015    
IPC:
C12P 17/04 (2006.01), C07D 307/68 (2006.01)
Applicants: TECHNISCHE UNIVERSITEIT DELFT [NL/NL]; Stevinweg 1 NL-2628 CN Delft (NL)
Inventors: VAN SPRONSEN, Jacob; (NL).
WITKAMP, Geert-Jan; (NL).
DE GRAAFF, Bart; (NL)
Agent: JANSEN, C.M.; (NL)
Priority Data:
2011027 24.06.2013 NL
Title (EN) PROCESS FOR THE PREPARATION OF 2,5-FURANDICARBOXYLIC ACID
(FR) PROCÉDÉ DE PRÉPARATION D'ACIDE 2,5-FURANDICARBOXYLIQUE
Abstract: front page image
(EN)The invention is directed to a process for the preparation of 2,5- furandicarboxylic acid (FDCA) by fermentation comprising fermenting a suitable starting compound to produce an aqueous solution of a salt of FDCA having a pH of at least 7, optionally removing solids from said solution, e.g. by filtration, subsequently freeze crystallizing the said salt of FDCA from said solution at said pH, isolating the said FDCA salt in the form of solid crystals, preparing an aqueous solution of said salt and crystallizing FDCA as the free acid from said solution at an acidic pH.
(FR)L'invention porte sur un procédé de préparation d'acide 2,5- furandicarboxylique (FDCA) par fermentation, lequel procédé consiste à faire fermenter un composé de départ adéquat afin d'obtenir une solution aqueuse d'un sel de FDCA doté d'un pH d'au moins 7, à facultativement enlever les particules solides de ladite solution, p.ex. par filtration, à cristalliser ensuite par congélation ledit sel de FDCA de ladite solution audit pH, à isoler ledit sel de FDCA sous la forme de cristaux solides, à préparer une solution aqueuse dudit sel et à cristalliser le FDCA sous la forme de l'acide libre de ladite solution à un pH acide.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)