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1. EP3640312 - AZEOTROPE OR AZEOTROPIC COMPOSITION CONTAINING PENTAFLUOROPROPANE AND WATER, AND METHOD FOR PRODUCING PENTAFLUOROPROPANE

Office
European Patent Office
Application Number 18817508
Application Date 15.06.2018
Publication Number 3640312
Publication Date 22.04.2020
Publication Kind A4
IPC
C07C 17/383
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
17Preparation of halogenated hydrocarbons
38Separation; Purification; Stabilisation; Use of additives
383by distillation
C07C 19/08
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
19Acyclic saturated compounds containing halogen atoms
08containing fluorine
C09K 5/04
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
5Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
02Materials undergoing a change of physical state when used
04the change of state being from liquid to vapour or vice-versa
CPC
C07C 17/383
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
17Preparation of halogenated hydrocarbons
38Separation; Purification; Stabilisation; Use of additives
383by distillation
C07C 19/08
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
19Acyclic saturated compounds containing halogen atoms
08containing fluorine
C09K 3/00
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
3Materials not provided for elsewhere
C09K 5/04
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
5Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
02Materials undergoing a change of physical state when used
04the change of state being from liquid to vapour or vice versa
Applicants DAIKIN IND LTD
Inventors OHHIGASHI YUUKO
TAKAKUWA TATSUYA
TAKAHASHI KAZUHIRO
Designated States
Priority Data 2017118588 16.06.2017 JP
Title
(DE) AZEOTROP ODER AZEOTROPE ZUSAMMENSETZUNG MIT PENTAFLUORPROPAN UND WASSER SOWIE VERFAHREN ZUR HERSTELLUNG VON PENTAFLUORPROPAN
(EN) AZEOTROPE OR AZEOTROPIC COMPOSITION CONTAINING PENTAFLUOROPROPANE AND WATER, AND METHOD FOR PRODUCING PENTAFLUOROPROPANE
(FR) AZÉOTROPE OU COMPOSITION AZÉOTROPIQUE CONTENANT DU PENTAFLUOROPROPANE ET DE L'EAU ET PROCÉDÉ DE PRODUCTION DE PENTAFLUOROPROPANE
Abstract
(EN) An object of the present invention is to provide a method that can efficiently remove water contained in pentafluoropropane. Provided as a solution is a method comprising distilling a composition comprising pentafluoropropane and water to thereby extract pentafluoropropane with a water content higher than that of the composition as a first stream, and pentafluoropropane with a water content lower than that of the composition as a second stream.
(FR) Le problème à la base de la présente invention concerne un procédé efficace d'élimination de l'eau contenue dans du pentafluoropropane. La solution de l'invention porte sur un procédé comprenant une étape dans laquelle une composition contenant du pentafluoropropane et de l'eau est distillée et, par conséquent, du pentafluoropropane présentant une concentration en eau supérieure à celle de ladite composition est extrait sous la forme d'un premier flux et du pentafluoropropane présentant une concentration en eau inférieure à celle de ladite composition est extrait sous la forme d'un deuxième flux.