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Azeotropic and azeotrope-like compositions of E-1,3,4,4,4-pentafluoro-3-trifluoromethyl-1-butene and Z-1,1,1,4,4,4-hexafluoro-2-butene and uses thereof

An azeotropic composition, trifluoromethyl technology, applied in detergent compositions, non-surface-active detergent compositions, materials for heat exchange, etc., can solve problems such as wide application limitations

Inactive Publication Date: 2015-04-08
EI DU PONT DE NEMOURS & CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

HFCs have come under scrutiny due to their contribution to global warming, and their widespread use will be limited in the future

Method used

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  • Azeotropic and azeotrope-like compositions of E-1,3,4,4,4-pentafluoro-3-trifluoromethyl-1-butene and Z-1,1,1,4,4,4-hexafluoro-2-butene and uses thereof
  • Azeotropic and azeotrope-like compositions of E-1,3,4,4,4-pentafluoro-3-trifluoromethyl-1-butene and Z-1,1,1,4,4,4-hexafluoro-2-butene and uses thereof
  • Azeotropic and azeotrope-like compositions of E-1,3,4,4,4-pentafluoro-3-trifluoromethyl-1-butene and Z-1,1,1,4,4,4-hexafluoro-2-butene and uses thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0034] The measured pressure in the PTx unit for the E-HFO-1438ezy / Z-HFO-1336mzz mixture is shown in figure 1 , which graphically shows the formation of an azeotropic composition consisting essentially of E-HFO-1438ezy and Z-HFO-1336mzz, as at about 25°C with the highest pressure among the composition ranges of about A mixture of 63.7 mole % E-HFO-1438ezy and about 36.3 mole % Z-HFO-1336mzz is shown. Based on these findings, it has been calculated that E-HFO-1438ezy and Z-HFO-1336mzz form E-HFO-1438ezy in the range of about 64.0 mole % to about 61.3 mole % and Z in the range of about 36.0 mole % to about 38.7 mole % - an azeotropic composition of HFO-1336mzz (which forms an azeotropic composition that boils at a temperature of about -50°C to about 140°C and a pressure of about 0.2 psia (1.4 kPa) to about 261 psia (1799 kPa)). For example, at about 25°C and about 12.4 psia (85 kPa), the azeotropic composition consists essentially of about 63.7 mole percent E-HFO-1438ezy and a...

example 2

[0055] The measured pressure in the PTx unit for the E-HFO-1438ezy / cyclopentane mixture is shown in figure 1 , which graphically shows the formation of an azeotropic composition consisting essentially of E-HFO-1438ezy and cyclopentane, as at a temperature of about 25.0°C, with the highest pressure among the composition ranges of about 67.7 A mixture of mol% E-HFO-1438ezy and about 32.3 mol% cyclopentane is shown. Based on these findings, it has been calculated that E-HFO-1438ezy and cyclopentane form an azeotropic combination of about 66.8 mole % to about 95.2 mole % E-HFO-1438ezy and about 33.2 mole % to about 4.8 mole % cyclopentane compounds (which form azeotropic compositions boiling at temperatures from about -50°C to about 140°C and pressures from about 0.2 psia (1.4 kPa) to about 250 psia (1724 kPa)). For example, at about 25.0°C and about 13.5 psia (93 kPa), the azeotropic composition consists essentially of about 67.7 mole percent E-HFO-1438ezy and about 32.3 mole p...

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Abstract

Azeotropic or azeotrope-like compositions are disclosed. The azeotropic or azeotrope-like compositions are mixtures of E-1,3,4,4,4-pentafluoro-3-trifluoromethyl-1-butene and Z-1,1,1,4,4,4-hexafluoro-2-butene. Also disclosed is a process of preparing a thermoplastic or thermoset foam by using such azeotropic or azeotrope-like compositions as blowing agents. Also disclosed is a process of producing refrigeration by using such azeotropic or azeotrope-like compositions. Also disclosed is a process of using such azeotropic or azeotrope-like compositions as solvents. Also disclosed is a process of producing an aerosol product by using such azeotropic or azeotrope-like compositions. Also disclosed is a process of using such azeotropic or azeotrope-like compositions as heat transfer media. Also disclosed is a process of extinguishing or suppressing a fire by using such azeotropic or azeotrope-like compositions. Also disclosed is a process of using such azeotropic or azeotrope-like compositions as dielectrics.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Provisional Patent Application 61 / 678,260, filed August 1, 2012, which is hereby incorporated by reference. This application additionally requires the title "Azeotropic and Azeotrope-Like Compositions of E-1,3,4,4,4-Pentafluoro-3-Trifffluoromethyl-1-Butene and Cyclopentane and Uses Thereof" submitted on August 1, 2012 Priority to US Provisional Patent Application 61 / 678,257, which is also incorporated herein by reference. technical field [0003] This disclosure relates to E-1,3,4,4,4-pentafluoro-3-trifluoromethyl-1-butene and Z-1,1,1,4,4,4-hexafluoro-2-butene Azeotropic and azeotrope-like compositions of alkenes. Background technique [0004] Over the past few decades, many industries have focused on finding replacements for the ozone-depleting chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs). CFCs and HCFCs have been used in a variety of applications including...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J9/14C09K5/04
CPCC08J9/146C09K5/045C09K2205/12C09K2205/22C09K2205/32C09K3/30C08J9/149C11D7/505C09K2205/126C11D7/5072
Inventor M. L. 罗宾
Owner EI DU PONT DE NEMOURS & CO