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1. (WO2016055456) PRODUCTION OF AN AROMATIC DICARBOXYLIC ACID
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2016/055456 International Application No.: PCT/EP2015/073021
Publication Date: 14.04.2016 International Filing Date: 06.10.2015
IPC:
C07C 51/265 (2006.01) ,C07C 51/43 (2006.01) ,C07C 51/487 (2006.01) ,C07C 63/26 (2006.01)
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
51
Preparation of carboxylic acids or their salts, halides, or anhydrides
16
by oxidation
21
with molecular oxygen
255
of compounds containing six-membered aromatic rings without ring-splitting
265
having alkyl side chains which are oxidised to carboxyl groups
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
51
Preparation of carboxylic acids or their salts, halides, or anhydrides
42
Separation; Purification; Stabilisation; Use of additives
43
by change of the physical state, e.g. crystallisation
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
51
Preparation of carboxylic acids or their salts, halides, or anhydrides
42
Separation; Purification; Stabilisation; Use of additives
487
by treatment giving rise to chemical modification
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
63
Compounds having carboxyl groups bound to carbon atoms of six-membered aromatic rings
14
Monocyclic dicarboxylic acids
15
all carboxyl groups bound to carbon atoms of the six-membered aromatic ring
26
1,4-Benzenedicarboxylic acid
Applicants:
INVISTA TECHNOLOGIES S.À R.L. [LU/CH]; Zweigniederlassung St. Gallen Flurhofstrasse 160 9000 St. Gallen, CH
Inventors:
LIMBACH, Antony Peter John; GB
CHANDRA, Akhilesh; GB
MATHERS, Lewis Robert; GB
GUPTA, Anuj; GB
Agent:
COCKERTON, Bruce Roger; GB
Priority Data:
1417636.606.10.2014GB
Title (EN) PRODUCTION OF AN AROMATIC DICARBOXYLIC ACID
(FR) PRODUCTION D'ACIDE DICARBOXYLIQUE AROMATIQUE
Abstract:
(EN) The present invention provides a method for raising steam in a process for the production of an aromatic dicarboxylic acid comprising the catalytic oxidation of a hydrocarbon precursor in an organic solvent, comprising the steps of: i) heating a crude aromatic dicarboxylic acid slurry to form a crude aromatic dicarboxylic acid solution; ii) transferring the crude aromatic dicarboxylic acid solution to a hydrogenation reactor; iii) transferring a purified aromatic dicarboxylic acid solution from the hydrogenation reactor to a series of one or more crystallisers; and iv) transferring heat from a crystalliser vent stream from the series of one or more crystallisers to a water stream in a steam raiser to generate steam. The present invention further provides an apparatus for carrying out the method, and a process for the production of an aromatic dicarboxylic acid incorporating the method.
(FR) La présente invention concerne un procédé permettant de produire de la vapeur dans un procédé de production d'un acide dicarboxylique aromatique comprenant l'oxydation catalytique d'un précurseur d'hydrocarbure dans un solvant organique, comprenant les étapes consistant à : i) chauffer une suspension d'acide dicarboxylique aromatique brut pour former une solution d'acide dicarboxylique aromatique brut; ii) transférer la solution d'acide dicarboxylique aromatique brut dans un réacteur d'hydrogénation; iii) transférer une solution d'acide dicarboxylique aromatique purifié depuis le réacteur d'hydrogénation vers une série d'un ou plusieurs cristalliseurs; et iv) transférer la chaleur d'un flux d'évent de cristalliseur depuis la série d'un ou de plusieurs cristalliseurs vers un flux d'eau dans équipement de production de vapeur pour produire de la vapeur. La présente invention concerne en outre un appareil pour la mise en oeuvre du procédé, et un procédé pour la production d'un acide dicarboxylique aromatique incorporant le procédé.
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, 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 (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, 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)
Also published as:
KZ2017/0354.1TR2017/05184CN204714728CN105985237IN201747015966