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1. (WO2011146242) PRODUCTION OF AROMATIC CARBOXYLIC ACIDS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2011/146242    International Application No.:    PCT/US2011/035196
Publication Date: 24.11.2011 International Filing Date: 04.05.2011
IPC:
C07C 51/43 (2006.01), C07C 51/265 (2006.01), C07C 51/44 (2006.01), C07C 63/04 (2006.01), C07C 63/15 (2006.01)
Applicants: INVISTA TECHNOLOGIES S.A. R.L. [LU/CH]; Zweigniederlassung St. Gallen Pestalozzistrasse 2 CH-9000 St. Gallen (CH) (For All Designated States Except US).
URE, Alan, Macpherson [GB/GB]; (GB) (For US Only)
Inventors: URE, Alan, Macpherson; (GB)
Agent: STERNER, Craig, M; Three Little Falls Centre/1052 2801 Centerville Road Wilmington, DE 19808 (US)
Priority Data:
61/345,799 18.05.2010 US
Title (EN) PRODUCTION OF AROMATIC CARBOXYLIC ACIDS
(FR) PRODUCTION D'ACIDES CARBOXYLIQUES AROMATIQUES
Abstract: front page image
(EN)Disclosed are processes and systems for the production of aromatic carboxylic acids, such as purified terephthalic acid. The processes result in reduced volatile aromatic monocarboxylic acid contamination throughout various stages of the PTA process when compared to known processes. This permits the various effluent streams to be recycled back to several stages in the production process, which allows for the efficient production of pure PTA at a lower cost.
(FR)La présente invention concerne des procédés et des systèmes de production d'acides carboxyliques aromatiques, tels que l'acide téréphtalique purifié (PTA). Les procédés aboutissent à une diminution de la contamination de l'acide monocarboxylique aromatique volatile au cours des diverses étapes du procédé de production de PTA par rapport à d'autres procédés connus. Ceci permet le recyclage des divers courants effluents vers les différentes étapes du procédé de production, ce qui permet la production efficace de PTA pur à un coût moindre.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, 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, IS, JP, KE, KG, KM, 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, PE, PG, PH, PL, PT, RO, RS, RU, 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, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, 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, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)