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Azeotropic or azeotrope-like composition and preparation method thereof

A kind of azeotropic and composition-like technology, applied in botany equipment and methods, detergent compositions, non-surface-active detergent compositions, etc., can solve the problems of poor stability and toxicity, and achieve good stability and smooth temperature The effect of small shift and small change in composition

Active Publication Date: 2022-03-08
ZHEJIANG JUHUA NEW MATERIALS RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The downside is that the second component is mostly flammable or toxic
The disadvantage is that the composition is less stable

Method used

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  • Azeotropic or azeotrope-like composition and preparation method thereof
  • Azeotropic or azeotrope-like composition and preparation method thereof
  • Azeotropic or azeotrope-like composition and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1～16

[0053] in N 2 Under the atmosphere, HFC-43-10-mee and HCFO-1223xd(Z) are physically mixed in a liquid state according to different molar ratios to obtain an azeotropic or azeotrope-like composition. The temperature glide under normal pressure is not more than 1°C, see Table 3.

[0054] Table 3: Temperature glide of HFC-43-10-mee and HCFO-1223xd(Z) forming compositions

[0055]

[0056]

Embodiment 17～31

[0058] in N 2 Under the atmosphere, physically mix HFC-43-10-mee and HCFO-1223xd(E) in a liquid state according to different molar ratios to obtain an azeotropic or azeotrope-like composition, and its temperature glide at normal pressure None are greater than 1°C, see Table 4.

[0059] Table 4: Temperature glide of HFC-43-10-mee and HCFO-1223xd(E) forming compositions

[0060]

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PUM

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Abstract

The present invention discloses an azeotropic or azeotrope-like composition comprising a first component 1, 1, 1, 2, 2, 3, 4, 5, 5, 5-decafluoropentane and a second component selected from the group consisting of Z-1, 2-dichloro-3, 3, 3-trifluoropropene or E-1, 2-dichloro-3, 3, 3-trifluoropropene wherein the second component is present in an amount effective to form an azeotropic or azeotrope-like mixture with 1, 1, 1, 2, 2, 3, 4, 5, 5, 5-decafluoropentane. The invention also discloses a preparation method of the azeotropic or azeotrope-like composition. The composition provided by the invention has the advantages of low GWP, environmental protection and small temperature slip.

Description

technical field [0001] The invention relates to the technical field of fluorine-containing compositions, in particular to an azeotropic or azeotrope-like composition and a preparation method thereof. Background technique [0002] In recent decades, multiple industries have been working to find alternatives to the ozone-depleting chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs). CFCs and HCFCs have been used in a wide range of applications including their use as refrigerants, detergents, expansion agents for thermoplastic and thermoset foams, heat transfer media, fire suppression and flame retardants, power cycle working fluids, polymerization media, and displacement desiccants and other purposes. In the search for replacements for these versatile compounds, many industries have turned to hydrofluorocarbons (HFCs), hydrofluoroolefins (HFOs) and hydrochlorofluoroolefins (HCFOs). [0003] As JP2013249326A discloses a heat transfer medium containing 1,3,3,3-tetr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/04C11D7/30A01N29/02A01P7/04C09K23/00
CPCC09K5/044C11D7/30A01N29/02
Inventor 王斌辉马列军王树华李行行童灿辉付磊王金明
Owner ZHEJIANG JUHUA NEW MATERIALS RES INST CO LTD
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