25-04-2019 дата публикации
Номер: WO2019075932A1
Принадлежит:
Provided is a co-production method for 2,3,3,3-tetrafluoropropylene and trans-1,3,3,3-tetrafluoropropylene, comprising: preheating a 1,1,1,2,2-pentachloropropane and 1,1,1,3,3-pentachloropropane mixture and anhydrous hydrogen fluoride, and then introducing the same into a first reactor, and allowing the same to react under the effect of a La2O3-Cr2O3 catalyst to obtain a first reactor product; directly introducing the first reactor product into a second reactor without undergoing separation, and performing a catalytic fluorination reaction under the effect of a Ga2O3-Y2O3-Cr2O3 catalyst to obtain a second reactor reaction product; and separating the second reactor reaction product to obtain 2,3,3,3-tetrafluoropropylene and trans-1,3,3,3-tetrafluoropropylene products. The described method has advantages such as processing being simple, device investment being small, the activity of the catalyst being good, the selectivity being high, the total service life being long, and the proportions ...
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