METHOD FOR PURIFYING TRIFLUOROETHYLENE
PROBLEM TO BE SOLVED: To provide a method for purifying trifluoroethylene capable of efficiently recovering trifluoroethylene from a composition containing impurities.SOLUTION: The method for purifying trifluoroethylene recovers trifluoroethylene with increased purity from a composition containing t...
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| Format: | Patent |
| Sprache: | eng ; jpn |
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| Zusammenfassung: | PROBLEM TO BE SOLVED: To provide a method for purifying trifluoroethylene capable of efficiently recovering trifluoroethylene from a composition containing impurities.SOLUTION: The method for purifying trifluoroethylene recovers trifluoroethylene with increased purity from a composition containing trifluoroethylene, a high-boiling compound having a boiling point higher than that of trifluoroethylene, and a low-boiling compound having a boiling point lower than that of trifluoroethylene. The method for purifying trifluoroethylene comprises a high-boiling compound removal step of removing the high-boiling compound from the composition, and a distillation step of recovering trifluoroethylene from the composition subjected to the high-boiling compound removal step by distillation.SELECTED DRAWING: None
【課題】不純物を含有する組成物からトリフルオロエチレンの回収を効率的に行うことができるトリフルオロエチレンの精製方法の提供。【解決手段】トリフルオロエチレンと、トリフルオロエチレンよりも高い沸点を有する高沸点化合物と、トリフルオロエチレンよりも低い沸点を有する低沸点化合物と、を含む組成物からトリフルオロエチレンの純度を高めて回収するトリフルオロエチレンの精製方法であって、組成物から高沸点化合物を除去する高沸点化合物除去工程と、高沸点化合物除去工程を経た組成物から、蒸留によりトリフルオロエチレンを回収する蒸留工程と、を有するトリフルオロエチレンの精製方法。【選択図】なし |
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