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Halogenated olefin combined solvent containing 1-chloro-2, 3, 3-trifluoropropene and application thereof

A technology of trifluoropropene and halogenated olefin, which is applied in detergent compositions, non-surface-active detergent compositions, organic non-surface-active detergent compositions, etc., can solve the problems of poor compatibility, low flash point and excessive solubility. Strong and other issues

Inactive Publication Date: 2020-09-15
SHANGHAI RICHEM ENVIROTEC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Fluorocarbon solvents (PFCs) and hydrofluorocarbon solvents (HFCs), which are currently used as substitutes, do not deplete ozone because their components do not contain chlorine, but they have a high greenhouse effect
[0004] In response to these problems, patent CN 103415652 provides an azeotropic and azeotropic composition composed of methyl perfluoroheptene ether and trans-1,2-dichloroethylene, but its flash point is low and its safety is poor; patent CN 108823007 Provided is a trans-1,2-dichloroethylene, methyl perfluoroheptenyl ether, 1,1,2,3,3,3-hexafluoropropyl-2,2,2-trifluoroethyl ether Composed of non-flammable combined solvents, but its solvency is too strong, and it has poor material compatibility with electronic components and medical devices containing some sensitive plastic parts

Method used

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  • Halogenated olefin combined solvent containing 1-chloro-2, 3, 3-trifluoropropene and application thereof
  • Halogenated olefin combined solvent containing 1-chloro-2, 3, 3-trifluoropropene and application thereof
  • Halogenated olefin combined solvent containing 1-chloro-2, 3, 3-trifluoropropene and application thereof

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preparation example Construction

[0054] In the present invention, the preparation method of the halogenated olefin combined solvent containing 1-chloro-2,3,3-trifluoropropene preferably includes the following steps:

[0055] Mix 1-chloro-2,3,3-trifluoropropene, trans-1,2-dichloroethylene and methyl perfluoroheptenyl ether to obtain 1-chloro-2,3,3-trifluoropropene Halogenated olefin combination solvent.

[0056] The present invention does not have special requirements for the mixing method, as long as the mixing method well known to those skilled in the art can be used, such as stirring and mixing.

[0057] The present invention provides the application of the above-mentioned halogenated olefin combined solvent containing 1-chloro-2,3,3-trifluoropropene in cleaning agents, diluents and aerosols. In the present invention, the cleaning agent is a cleaning agent for degreasing metal parts, removing flux for electronic components and sensitive plastic parts. When the halogenated olefin combined solvent of the present i...

Embodiment 1

[0065] Weigh 300 grams of 1-chloro-2,3,3-trifluoropropene, 4000 grams of trans-1,2-dichloroethylene and 160 grams of methyl perfluoroheptenyl ether, and mix them to prepare a mixture containing 1-chloro-2, The halogenated olefin combination solvent of 3,3-trifluoropropene; wherein 1-chloro-2,3,3-trifluoropropene is trans 1-chloro-2,3,3-trifluoropropene with a purity of 95%.

[0066] The flash point standard test method ASTM D56-05 (2010) of the Tag closed cup tester is used to determine the flash point of the obtained halogenated olefin combination solvent. After testing, the present invention contains 1-chloro-2,3,3-tri The halogenated olefin combination solvent of fluoropropylene has no flash point.

Embodiment 2

[0078] Weigh 3500 grams of 1-chloro-2,3,3-trifluoropropene, 4000 grams of trans 1,2-dichloroethylene, 200 grams of methyl perfluoroheptenyl ether and 200 grams of isopropanol, and mix them to prepare A halogenated olefin combination solvent of 1-chloro-2,3,3-trifluoropropene, where 1-chloro-2,3,3-trifluoropropene is trans 1-chloro-2,3 with a purity of 95%, 3-Trifluoropropene.

[0079] The flash point standard test method ASTM D56-05 (2010) of the Tag closed cup tester is used to determine the flash point of the obtained halogenated olefin combination solvent. After testing, the present invention contains 1-chloro-2,3,3-tri The halogenated olefin combination solvent of fluoropropylene has no flash point.

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Abstract

The invention relates to the technical field of fluorine-containing cleaning agents, and provides a halogenated olefin combined solvent containing 1-chloro-2, 3, 3-trifluoropropene. The halogenated olefin combined solvent is prepared from the following components in parts by mass: 3 to 90 parts of 1-chloro-2, 3, 3-trifluoropropene, 5 to 95 parts of trans-1, 2-dichloroethylene; and 0.2 to 5 parts of methyl perfluoroheptene ether. According to the invention, the synergistic effect of the three substances is utilized; azeotrope or approximate azeotrope can be formed, the obtained combined solventis stable, free of flash point, low in toxicity and corrosivity, good in material compatibility, good in dissolving and removing capacity for pollutants and high in volatilization drying speed, the ODP value (ozone consumption potential value) is zero, and the GWP value (global warming potential value) is extremely low. The invention also provides an application of the halogenated olefin combinedsolvent in a cleaning agent, a diluent and an aerosol.

Description

Technical field [0001] The invention relates to the technical field of fluorine-containing cleaning agents, in particular to a halogenated olefin combined solvent containing 1-chloro-2,3,3-trifluoropropene and its application. Background technique [0002] The cleaning process is used in the semiconductor manufacturing process, electronic components, IGBT, PCBa and other electronic product manufacturing links, optical components assembly links, and all links of precision mechanical original manufacturing and assembly. Solvents are often used in the cleaning process to remove flux, fine particles, processing grease, wax, mold release agent, dust, etc. At the same time, solvents are also used in coating carriers, glass anti-fingerprint coating dilution, coating of functional coatings for lenses, and silicone oil dilution for medical devices. With the current updated regulatory requirements (such as the EU's F-gas regulations), the market's demand for low-toxic, environmentally fri...

Claims

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Application Information

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IPC IPC(8): C11D7/60C11D7/30C11D7/28C23G5/028
CPCC11D7/28C11D7/30C23G5/02825
Inventor 刘向尧
Owner SHANGHAI RICHEM ENVIROTEC CO LTD
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