发明名称 |
DEHYDROFLUORINATION OF 245FA TO 1234ZE |
摘要 |
A method of producing a fluoropropane of formula CF3CH═CHF, comprising contacting a mixture of 1,1,1,3,3-pentafluoropropane and Z-1,3,3,3-tetrafluoropropene in the gas phase with a catalyst comprising at least one catalyst selected from the group consisting of fluorinated Cr2O3 or Cr/Ni on fluoride alumina, in the presence of an oxygen containing gas, to form a mixture comprising Z-1,3,3,3-tetrafluoropropane, E-1,3,3,3,-tetrafluoropropene, hydrogen fluoride, and optionally unreacted 1,1,1,3,3-pentafluoropropane, separating the E-1,3,3,3-tetrafluoropropene from the Z-isomer and any unreacted 1,1,1,3,3-pentafluoropropane, if present, and recovering said E-1,3,3,3-tetrafluoropropene. |
申请公布号 |
US2016046546(A1) |
申请公布日期 |
2016.02.18 |
申请号 |
US201514819807 |
申请日期 |
2015.08.06 |
申请人 |
THE CHEMOURS COMPANY FC LLC |
发明人 |
PENG SHENG;Nappa Mario Joseph |
分类号 |
C07C17/25 |
主分类号 |
C07C17/25 |
代理机构 |
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代理人 |
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主权项 |
1. A method of producing a fluoropropane of formula CF3CH═CHF, comprising:
a) contacting a mixture of 1,1,1,3,3-pentafluoropropane and Z-1,3,3,3-tetrafluoropropene in the gas phase with a catalyst comprising at least one catalyst selected from the group consisting of fluorinated Cr2O3 or Cr/Ni on fluorided alumina, in the presence of an oxygen containing gas, to form a mixture comprising Z-1,3,3,3-tetrafluoropropane, E-1,3,3,3,-tetrafluoropropene, hydrogen fluoride, and optionally unreacted 1,1,1,3,3-pentafluoropropane, b) separating the E-1,3,3,3-tetrafluoropropene from the Z-isomer and any unreacted 1,1,1,3,3-pentafluoropropane, if present, and c) recovering said E-1,3,3,3-tetrafluoropropene. |
地址 |
Wilmington DE US |