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Method for separating double-bond-comprising straight-chain hydrocarbon in which all hydrogen atoms have been substituted with fluorine atoms or chlorine atoms

A separation method, hydrogen atom technology, applied in the field of straight chain hydrocarbons, can solve the problems of high vapor pressure, toxicity, etc.

Pending Publication Date: 2021-12-17
ZEON CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Perfluorocarbons with double bonds have improved global warming potential, but they are not negligible and are strictly regulated due to high vapor pressure, toxicity, etc.

Method used

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  • Method for separating double-bond-comprising straight-chain hydrocarbon in which all hydrogen atoms have been substituted with fluorine atoms or chlorine atoms
  • Method for separating double-bond-comprising straight-chain hydrocarbon in which all hydrogen atoms have been substituted with fluorine atoms or chlorine atoms
  • Method for separating double-bond-comprising straight-chain hydrocarbon in which all hydrogen atoms have been substituted with fluorine atoms or chlorine atoms

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 12

[0095] The results of the fluorine NMR measurement of Example 12 are shown in figure 1 .

[0096] figure 1 It is the measurement result of the compound inside the second pressure vessel. The corresponding peaks are from CF 3 CF=CF 2 peak, c-C was not detected 4 f 6 The peak (-122.2ppm (CF 2 ) and -131.0ppm (CF)).

[0097] figure 2 It is the measurement result of the compound inside the first pressure vessel. c-C not detected 4 f 6 peaks, presumed to be from CF 3 CF=CF 2 Peaks other than the peaks from the product.

[0098] Based on the integrated values ​​of the peaks of Compound X, Compound Y, and the reaction product in the fluorine NMR measurement, the respective ratios in the pressure vessel were calculated, and the mass of the compound Y was calculated from the previously calculated mass of the residual component and the mass of the collected gas. Conversion rate, unconverted rate of compound X.

[0099] The conversion rate of the compound Y is the ratio o...

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Abstract

An objective of the present invention is to selectively separate, as a double-bond-comprising hydrocarbon compound in which all hydrogen atoms have been substituted with fluorine atoms or chlorine atoms, a straight-chain compound from a raw material containing a straight-chain compound and an alicyclic compound. The present invention is a method for separating a double-bond-comprising straight-chain hydrocarbon in which all hydrogen atoms have been substituted with fluorine atoms or chlorine atoms, the method is characterized in that a raw material, containing a double-bond-comprising straight-chain hydrocarbon in which all hydrogen atoms have been substituted with fluorine atoms or chlorine atoms and a double-bond-comprising alicyclic hydrocarbon in which all hydrogen atoms have been substituted with fluorine atoms or chlorine atoms, is brought into contact with at least one type of amine compound selected from the group consisting of tertiary amines represented by the formula NR1R2R3 (wherein R1, R2, and R3 are each independently an alkyl group, two of which may optionally together form an alkylene group optionally interrupted by an oxygen atom or a sulfur atom) and heterocyclic aromatic amine compounds.

Description

technical field [0001] The present invention relates to the separation of all hydrogen from a treated product comprising straight-chain hydrocarbons with double bonds in which all hydrogen atoms are substituted by fluorine atoms or chlorine atoms and alicyclic hydrocarbons with double bonds in which all hydrogen atoms are substituted by fluorine atoms or chlorine atoms A method for straight-chain hydrocarbons with double bonds in which atoms are substituted by fluorine or chlorine atoms. Background technique [0002] Perfluorocarbons with double bonds are used as tetrafluoromethane (CF) as etching gas and cleaning gas in semiconductor and liquid crystal manufacturing processes. 4 ), hexafluoroethane (C 2 f 6 ) and other saturated perfluorocarbon substitutes and raw materials for fluororesins have been continuously researched. Perfluorocarbons having a double bond have improved global warming potential, but not to a negligible level, and are strictly regulated due to high ...

Claims

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Application Information

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IPC IPC(8): C07C21/18C07C21/19C07C17/42B01D53/14B01D53/70
CPCC07C17/42Y02C20/30C07C21/18C07C21/19C07C17/35C07C21/215
Inventor 石村隆行
Owner ZEON CORP
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