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1. (WO2010077261) PREPARATION OF ACETIC ACID
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2010/077261 International Application No.: PCT/US2009/006108
Publication Date: 08.07.2010 International Filing Date: 13.11.2009
IPC:
C07C 51/12 (2006.01) ,C07C 51/44 (2006.01) ,B01D 3/06 (2006.01) ,C07C 53/08 (2006.01)
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
51
Preparation of carboxylic acids or their salts, halides, or anhydrides
10
by reaction with carbon monoxide
12
on an oxygen-containing group in organic compounds, e.g. alcohols
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
44
by distillation
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
3
Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
06
Flash distillation
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
53
Saturated compounds having only one carboxyl group bound to an acyclic carbon atom or hydrogen
08
Acetic acid
Applicants:
LYONDELL CHEMICAL TECHNOLOGY, L.P. [US/US]; Two Greenville Crossing 4001 Kennett Pike, Suite 220 Greenville, Delaware 19807, US (AllExceptUS)
Inventors:
BRTKO, Wayne, J.; US
FITZPATRICK, Michael, E.; US
Agent:
GUO, Shao-Hua; LyondellBasell Industries 3801 West Chester Pike Newtown Square, Pennsylvania 19073, US
Priority Data:
12/315,88708.12.2008US
Title (EN) PREPARATION OF ACETIC ACID
(FR) PRÉPARATION D'ACIDE ACÉTIQUE
Abstract:
(EN) A process for producing acetic acid is disclosed. The process comprises carbonylating methanol to form a reaction mixture and flashing the reaction mixture to form a vapor stream and a liquid stream. The flash tank is equipped with a distillation column. The vapor stream comprises acetic acid and other volatile components but essentially no catalyst. The liquid stream comprises the catalyst and sufficient amounts of water and acetic acid to carry and stabilize the catalyst. The liquid stream is recycled to the carbonylation and the vapor stream is subjected to further separation to produce essentially pure acetic acid.
(FR) L'invention porte sur un procédé pour la production d'acide acétique. Le procédé comprend la carbonylation de méthanol pour former un mélange réactionnel et la détente brusque du mélange réactionnel pour former un courant de vapeur et un courant de liquide. Le ballon de détente brusque est pourvu d'une colonne de distillation. Le courant de vapeur comprend de l'acide acétique et d'autres composants volatils mais essentiellement pas de catalyseur. Le courant de liquide comprend le catalyseur et des quantités suffisantes d'eau et d'acide acétique pour véhiculer et stabiliser le catalyseur. Le courant de liquide est recyclé vers la carbonylation et le courant de vapeur est soumis à une autre séparation pour produire de l'acide acétique essentiellement pur.
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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, TJ, TM, TN, TR, TT, TZ, UA, UG, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, 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 (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, 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)
Also published as:
CN102307841RU2011128006RU0002510936IN4685/CHENP/2011