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Heptafluoro-3-methoxypropane composition

A technology of methoxypropane and perfluorodimethylcyclobutane is applied in the field of heptafluoro-3-methoxypropane composition, and can solve the problems of poor alcohol compatibility, uneven mixing, affecting use effect and the like , to achieve the effect of good compatibility and good expansion effect

Inactive Publication Date: 2017-07-14
张玲
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The existing fluorine-containing alkane composition, non-polar solvent alkane and polar solvent ether, have poor alcohol compatibility and uneven mixing, which affects its use effect

Method used

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  • Heptafluoro-3-methoxypropane composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] In a 1000L reactor, add 100Kg1,1,1,2,2,3,3-heptafluoro-3-methoxypropane, 0.05Kg tetramethylguanidine trifluoromethanesulfonate, 0.04Kg piperazine- 1,4-Diethanesulfonic acid monosodium salt, 12Kg perfluorodimethylcyclobutane, 0.05Kg methyl benzotriazole were mixed in liquid state for 3 hours to obtain the product. The number is T-1.

Embodiment 2

[0019] In a 1000L reactor, add 100Kg1,1,1,2,2,3,3-heptafluoro-3-methoxypropane, 0.01Kg tetramethylguanidine trifluoromethanesulfonate, 0.01Kg piperazine- 1,4-diethanesulfonic acid monosodium salt, 5Kg perfluorodimethylcyclobutane, 0.01Kg tolyltriazole were mixed in liquid state for 1 hour to obtain the product. The number is T-2.

Embodiment 3

[0021] In a 1000L reactor, add 100Kg1,1,1,2,2,3,3-heptafluoro-3-methoxypropane, 0.1Kg tetramethylguanidine trifluoromethanesulfonate, 0.1Kg piperazine- 1,4-Diethanesulfonic acid monosodium salt, 20Kg perfluorodimethylcyclobutane, 0.1Kg tolyltriazole were mixed in liquid state for 5 hours to obtain the product. The number is T-3.

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PUM

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Abstract

The invention provides a heptafluoro-3-methoxypropane composition. The composition is characterized in that a manufacturing method comprises: mixing 1,1,1,2,2,3,3-heptafluoro-3-methoxypropane, tetramethyl guanidine triflate, piperazine-1,4-diethyl sulfoacid mono-sodium salt, perfluoro-dimethyl-cyclobutane, and methyl-benzotriazole in liquid state according to certain proportion for 1-5 h, to obtain a product.

Description

technical field [0001] The invention relates to the field of expansion agents, in particular to a composition of heptafluoro-3-methoxypropane. Background technique [0002] In recent years, when some Freon gas is released into the atmosphere, it destroys the ozone layer of the stratosphere, and also warms the earth through the greenhouse effect, and as a result, it has a bad influence on the ecology of the earth including human beings. Therefore, the use of Freon gas, which has a high risk of depleting the ozone layer, has been restricted in accordance with international decisions. The above-mentioned CFC-11 is also subject to usage restrictions. From this point of view, it is necessary to develop a new blowing agent which does not have the problem of ozone depletion or global warming, or which has a low risk. Currently, 1,1-dichloro-1-fluoroethane (HCFC-141b) or 1,1-dichloro-2,2,2- Trifluoroethane. However, the molecules of these substances also contain chlorine atoms, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A24B15/38A24B3/18
CPCA24B3/182A24B15/385
Inventor 张玲王新
Owner 张玲