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Ternary and quaternary azeotrope compositions and azeotrope-like compositions comprising perfluoroheptene

A technology of perfluoroheptene and compound composition, which is applied in the preparation of detergent mixture composition, detergent composition, non-surface active detergent composition, etc., and can solve problems such as warming

Active Publication Date: 2022-03-22
THE CHEMOURS CO FC LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, many of the hydrofluorocarbons used to replace CFC compounds have been found to contribute to global warming

Method used

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  • Ternary and quaternary azeotrope compositions and azeotrope-like compositions comprising perfluoroheptene
  • Ternary and quaternary azeotrope compositions and azeotrope-like compositions comprising perfluoroheptene
  • Ternary and quaternary azeotrope compositions and azeotrope-like compositions comprising perfluoroheptene

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0106] Embodiment 1: gas-liquid equilibrium analysis and distillation analysis

[0107] Gas-liquid equilibrium analysis

[0108] The PTx method is a known method for experimentally measuring vapor-liquid equilibrium (VLE) data of mixtures. Measurements can be performed isothermally or isobarically. The isothermal method requires measuring the total pressure of a mixture of known composition at a constant temperature. In this method, the total absolute pressure in a cell of known volume is measured at a constant temperature for various known compositions of two compounds. The isobaric method requires measuring the temperature of a mixture of known composition at a constant pressure. In this method, for various known compositions of two compounds, the temperature is measured in a cell of known volume at constant pressure. The use of the PTx method is described in detail in "Phase Equilibrium in Process Design" (Wiley-Interscience Publisher, 1970, by Harold R. Null, pp. 1...

Embodiment 2

[0117] Example 2: Flammability and Flash Point Tests

[0118] The flash point test was performed using a mixture of perfluoroheptene (PFH) and tert-butyl acetate (TBAC). Flash point was determined using ASTM D56-05(2010), which is a standard test method for determining flash point by the Tag Closed Cup Tester. As shown in Table 2, the boiling point was constant over the range tested and consistent with azeotrope-like behavior. Compounds designated "NF" were determined to be non-flammable.

[0119] Table 2 :

[0120] PFH(weight%) TBAC(wt%) Boiling point (°C) Flash point (°C) 94 6 69.0 NF 92 8 69.0 NF 90 10 69.0 NF 81 11 69.0 NF 87 13 69.0 NF

Embodiment 3

[0121] Example 3: Metal Cleaning Analysis

[0122] Perfluoroheptene (PFH) has been shown to be effective in removing a variety of machining oils used in metal fabrication processes. Examples of ultrasonic cleaning of oily / greasey metal (carbon steel) coupons immersed in PFH are shown in Table 3 below.

[0123] table 3 :

[0124]

[0125]

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Abstract

The present invention provides a composition comprising: i) perfluoroheptene; ii) n-heptane; and iii) a compound selected from tert-butyl acetate and isopropyl acetate; wherein the n-heptene The alkane and tert-butyl acetate or isopropyl acetate are each present in the composition in an amount effective to form an azeotrope composition or azeotrope-like composition with the perfluoroheptene. A composition comprising: i) perfluoroheptene; ii) HFC-4310mee; and iii) trans-1,2-dichloroethylene; wherein said HFC-4310mee and trans-1, Each of the 2-dichloroethylenes is present in the composition in an amount effective to form an azeotrope composition or azeotrope-like composition with the perfluoroheptene. A method for dissolving a solute comprising contacting and mixing the solute with a sufficient amount of the composition. A method of cleaning a surface comprising contacting the composition with the surface. A method for removing at least a portion of water from a surface of a wetted substrate, the method comprising contacting the substrate with the composition, and then removing the substrate from contact with the composition.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of U.S. Provisional Application Serial No. 62 / 666463, filed May 3, 2018, the disclosure of which is incorporated herein by reference in its entirety. technical field [0003] The present invention relates to ternary and quaternary azeotrope compositions or azeotrope-like compositions comprising perfluoroheptene and two or more additional components which are effective to form The azeotrope composition or azeotrope-like composition amount is present in the composition. The compositions described herein are useful, for example, in cleaning and carrier applications. Background technique [0004] Chlorofluorocarbon (CFC) compounds have been widely used in semiconductor manufacturing to clean surfaces, such as disk media. However, chlorine-containing compounds such as CFC compounds are considered harmful to the Earth's ozone layer. Furthermore, many of the hydrofluorocarbons used to r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11D11/00C11D3/24C11D7/30C11D7/26C11D7/24C11D7/50
CPCC11D7/241C11D7/266C11D7/30C11D7/5054C11D7/509C11D11/0023C11D11/0011C11D7/5036
Inventor H·K·穆斯伊米
Owner THE CHEMOURS CO FC LLC