Purification process of pentafluoroethane
The invention discloses a purification process of pentafluoroethane and relates to the field of methods for removing unsaturated olefin impurities in pentafluoroethane through gas-phase catalytic fluorination reaction. The process comprises a first waste heat recovery heat exchanger, a second waste...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The invention discloses a purification process of pentafluoroethane and relates to the field of methods for removing unsaturated olefin impurities in pentafluoroethane through gas-phase catalytic fluorination reaction. The process comprises a first waste heat recovery heat exchanger, a second waste heat recovery heat exchanger, a purified steam heater, an external connection mechanism, a purification cooler, a purification reactor and a purification electric heater. The first waste heat recovery heat exchanger is connected with the purified steam heater, the purified steam heater is connectedwith the second waste heat recovery heat exchanger, and the first waste heat recovery heat exchanger is connected with the second waste heat recovery heat exchanger.The beneficial effects are that thepurification reaction catalyst used in the invention is a fluorination catalyst, which is mainly a chromium-based catalyst; meanwhile, cobalt, magnesium and the like are preferably selected as addedactive components, so that |
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