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1. US20200199051 - AZEOTROPE OR AZEOTROPIC COMPOSITION CONTAINING PENTAFLUOROPROPANE AND WATER, AND METHOD FOR PRODUCING PENTAFLUOROPROPANE

Office
United States of America
Application Number 16622372
Application Date 15.06.2018
Publication Number 20200199051
Publication Date 25.06.2020
Publication Kind A1
IPC
C07C 17/383
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
17Preparation of halogenated hydrocarbons
38Separation; Purification; Stabilisation; Use of additives
383by distillation
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
C07C 19/08
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
19Acyclic saturated compounds containing halogen atoms
08containing fluorine
CPC
C07C 19/08
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
19Acyclic saturated compounds containing halogen atoms
08containing fluorine
C07C 17/383
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
17Preparation of halogenated hydrocarbons
38Separation; Purification; Stabilisation; Use of additives
383by distillation
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 INDUSTRIES, LTD.
Inventors Yuuko OHHIGASHI
Tatsuya TAKAKUWA
Kazuhiro TAKAHASHI
Priority Data 2017118588 16.06.2017 JP
Title
(EN) AZEOTROPE OR AZEOTROPIC COMPOSITION CONTAINING PENTAFLUOROPROPANE AND WATER, AND METHOD FOR PRODUCING 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.