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Compositions of chlorotrifluoropropene and hexafluorobutene

A technology of chlorotrifluoropropene and trifluoropropene, which is applied in the field of the composition of chlorotrifluoropropene and hexafluorobutene, and can solve the problem of complex identification of non-fractionated mixtures

Active Publication Date: 2016-02-17
ARKEMA FRANCE SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the identification of novel, environmentally safe non-fractional mixtures is complicated by the fact that azeotrope formation is not easily predictable

Method used

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  • Compositions of chlorotrifluoropropene and hexafluorobutene
  • Compositions of chlorotrifluoropropene and hexafluorobutene
  • Compositions of chlorotrifluoropropene and hexafluorobutene

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Embodiment 1: Azeotrope-like composition

[0047] The vacuum chamber equipped with the sapphire tube was heated at 60 °C using an oil bath. Once temperature equilibrium was reached, E-1-chloro-3,3,3-trifluoropropene was added to the chamber and the pressure at which equilibrium was reached was recorded. An appropriate amount (amount of, anamount of) of E-1,1,1,4,4,4-hexafluoro-2-butene was introduced into the chamber, and the contents were mixed to accelerate equilibration. At equilibrium, very small samples are taken from the gas and liquid phases for analysis by gas chromatography with thermal detectors.

[0048] Then, the equilibrium data collected at different compositions of E-1-chloro-3,3,3-trifluoropropene and E-1,1,1,4,4,4-hexafluoro-2-butene were transformed into is the pressure at the boiling point of each composition.

[0049] From greater than about 0 to 99 weight percent E-1-chloro-3,3,3-trifluoropropene, the boiling point of the composition changes by 1...

Embodiment 2

[0051] Embodiment 2: Compression system application

technical background

[0052] The RK-Soave equation of state was used to calculate gas density, enthalpy, and entropy data and has been used to predict the latent heat of vaporization and vapor equilibrium data for the mixture of interest.

[0053] The fundamental properties required for this equation (critical temperature, critical pressure, and vapor pressure versus temperature) were measured by using a static cell.

[0054] The eccentricity coefficient of each pure product was calculated from the measurement of the vapor pressure curve.

[0055] In addition, the ideal gas heat capacity data were estimated by Benson group contribution method. All these estimation techniques are described in the textbook "The Properties of Gases & Liquids" (Bruce E. Poling, John M. Prausnitz, Johan P. O'connell, 5th edition, published by McGraw-Hill).

[0056] Interaction parameters between pure product pairs were obtained from vapor-liq...

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Abstract

Combinations consisting of 1,1,1,4,4,4-hexafluoro-2-butene and chlorotrifluoropropene, especially 1-chloro-3,3,3-trifluoropropene (HCFO-1233zd) are provided Compounds, preferably azeotropes or azeotrope-like compositions, and uses of said compositions.

Description

technical field [0001] The present invention relates to compositions consisting of hexafluorobutene and chlorotrifluoropropene, especially 1-chloro-3,3,3-trifluoropropene (HCFO-1233zd). Background technique [0002] Fluorocarbon-based fluids have found widespread use in industry in many applications, including as refrigerants, aerosol propellants, blowing agents, heat transfer media, and gas dielectrics. Due to the questionable environmental concerns associated with the use of some of these fluids, including the relatively high global warming potential associated therewith, it is desirable to use fluids with low or even zero ozone depletion potential. Additionally, the use of single component fluids or azeotropes (which do not fractionate when boiled and evaporated) is desirable. However, the identification of novel, environmentally safe non-fractionating mixtures is complicated by the fact that azeotrope formation is not easily predictable. [0003] The industry is consta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K3/30C09K5/04C08J9/14C11D7/50
CPCC08J9/144C08J9/146C08J9/149C11D7/5018C11D7/5054A61Q5/00A61K8/70A61Q19/00A61K2800/10C09K5/04F01K25/06F01K25/08A61K8/046A61Q13/00A61Q15/00C09K3/30C09K5/045C09K2205/122C09K2205/126C09K3/00C09K5/044C09K5/10A61K8/69A61K9/124A61K47/06A61Q5/06C08J2203/162C08J2203/182C09K2205/22C09K2205/32F28D15/00C08J2203/164
Inventor W.拉切德L.阿巴斯J-C.伯蒂尔
Owner ARKEMA FRANCE SA