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1. (WO2018106238) SYSTEMS AND METHODS FOR SEPARATING MIXTURES COMPRISING FLUOROCARBOXYLIC AND CARBOXYLIC ACIDS
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2018/106238 International Application No.: PCT/US2016/065501
Publication Date: 14.06.2018 International Filing Date: 08.12.2016
IPC:
C07C 51/43 (2006.01) ,C07C 51/46 (2006.01) ,C07C 53/08 (2006.01) ,C07C 53/18 (2006.01) ,C07C 303/42 (2006.01) ,C07C 309/06 (2006.01) ,C08B 3/06 (2006.01) ,C08B 3/22 (2006.01)
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
43
by change of the physical state, e.g. crystallisation
44
by distillation
46
by azeotropic 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
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
15
containing halogen
16
Halogenated acetic acids
18
containing fluorine
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
303
Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
42
Separation; Purification; Stabilisation; Use of additives
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
309
Sulfonic acids; Halides, esters, or anhydrides thereof
01
Sulfonic acids
02
having sulfo groups bound to acyclic carbon atoms
03
of an acyclic saturated carbon skeleton
06
containing halogen atoms, or nitro or nitroso groups bound to the carbon skeleton
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
B
POLYSACCHARIDES; DERIVATIVES THEREOF
3
Preparation of cellulose esters of organic acids
06
Cellulose acetate
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
B
POLYSACCHARIDES; DERIVATIVES THEREOF
3
Preparation of cellulose esters of organic acids
22
Post-esterification treatments, including purification
Applicants: EASTMAN CHEMICAL COMPANY[US/US]; 200 South Wilcox Drive Kingsport, TN 37660, US
Inventors: LIN, Robert; US
SHOAF, Glenn, Lewis; US
BHAMIDI, Venkateswarlu; US
KIRK, Shane, Kipley; US
NEAL, Marty, L.; US
ADAMS, Steven, J.; US
Agent: VIDALE, Kenrick, L.; US
Priority Data:
Title (EN) SYSTEMS AND METHODS FOR SEPARATING MIXTURES COMPRISING FLUOROCARBOXYLIC AND CARBOXYLIC ACIDS
(FR) SYSTÈMES ET PROCÉDÉS DE SÉPARATION DE MÉLANGES COMPRENANT DES ACIDES FLUOROCARBOXYLIQUES ET CARBOXYLIQUES
Abstract:
(EN) Processes and systems for separating a mixture including at least one fluorocarboxylic acid and at least one carboxylic acid are provided herein. In some aspects, the present invention relates to processes and systems configured to provide a purified stream of fluorocarboxylic acid and a purified stream of carboxylic acid, even when the mixture includes an azeotrope, a pinch point, and/or a eutectic mixture of the fluorocarboxylic acid and carboxylic acid. Systems as described herein may include, for example, at least one distillation zone and at least one fractional crystallization zone arranged in series and configured to provide highly purified product streams having compositions heretofore unachievable by conventional means.
(FR) L'invention concerne des procédés et des systèmes de séparation d'un mélange comprenant au moins un acide fluorocarboxylique et au moins un acide carboxylique. Selon certains aspects, la présente invention concerne des procédés et des systèmes conçus pour fournir un courant purifié d'acide fluorocarboxylique et un courant purifié d'acide carboxylique, même lorsque le mélange comprend un azéotrope, un point de pincement et/ou un mélange eutectique de l'acide fluorocarboxylique et de l'acide carboxylique. Les systèmes décrits dans la description peuvent comprendre, par exemple, au moins une zone de distillation et au moins une zone de cristallisation fractionnée agencées en série et conçues pour fournir des courants de produits hautement purifiés ayant des compositions jusqu'ici impossibles à obtenir par des moyens classiques.
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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, DJ, 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, KH, KN, KP, KR, KW, 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 Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (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)