Processes for the production of hydrofluoroolefins
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C07C-021/20
C07C-017/26
C07C-017/20
C07C-017/269
출원번호
US-0046312
(2013-10-04)
등록번호
US-8933280
(2015-01-13)
발명자
/ 주소
Tirtowidjojo, Max Markus
Au-Yeung, Patrick Ho-Sing
Chakraborty, Debashis
Eiffler, Juergen
Groenewald, Heinz
Hirsekorn, Kurt Frederick
Kokott, Manfred
Kruper, Jr., William J.
Luebbe, Thomas Ulrich
Meeman, Holger
Sexton, Shirley Shaw
Wenzel, Peter
Wobser, Marcus
출원인 / 주소
Dow Global Technologies LLC
대리인 / 주소
Ruszala, Lois K.
인용정보
피인용 횟수 :
13인용 특허 :
86
초록▼
The present invention provides continuous, gas phase, free radical processes for the production of chlorinated and/or fluorinated propenes or higher alkenes from the reaction of chlorinated and/or fluorinated alkanes and chlorinated and/or fluorinated alkenes, wherein wherein at least a portion of a
The present invention provides continuous, gas phase, free radical processes for the production of chlorinated and/or fluorinated propenes or higher alkenes from the reaction of chlorinated and/or fluorinated alkanes and chlorinated and/or fluorinated alkenes, wherein wherein at least a portion of any intermediate boiler by-products generated by the process are removed from the process.
대표청구항▼
1. A process for preparing one or more hydrofluoroolefins comprising: producing one or more chlorinated and/or fluorinated propene/higher alkenes from one or more chlorinated and/or fluorinated alkanes and chlorinated and/or fluorinated alkenes in a continuous, gas phase, free radical process, where
1. A process for preparing one or more hydrofluoroolefins comprising: producing one or more chlorinated and/or fluorinated propene/higher alkenes from one or more chlorinated and/or fluorinated alkanes and chlorinated and/or fluorinated alkenes in a continuous, gas phase, free radical process, wherein at least a portion of any by-products with boiling points between those of two reactants and generated by the process are removed from the process; andconverting at least one of the chlorinated and/or fluorinated propene/higher alkenes produced into one or more hydrofluoroolefins. 2. The process of claim 1, wherein the one or more hydrofluoroolefins are of the formula CF3CF═CHZ, where Z is H, F, Cl, I or Br. 3. The process of claim 1, wherein the chlorinated and/or fluorinated propene/higher alkenes comprise 1,1,2,3-tetrachloropropene, 1,1,3,3-tetrachloropropylene, 1,1,2,3-tetrafluoropropylene, or 1,1,2-chloro-3-fluoro-propene. 4. The process of claim 3, wherein the chlorinated and/or fluorinated propene/higher alkenes comprise 1,1,2,3-tetrachloropropene or 1,1,2chloro -3-fluoro-propene. 5. The process of claim 4, wherein the chlorinated and/or fluorinated propene/higher alkene comprises 1,1,2,3-tetrachloropropene. 6. The process of claim 5, wherein step of converting comprises fluorinating a feedstock of the 1,1,2,3 tetrachloropropene in a catalyzed, gas phase reaction to provide 2-chloro-3,3,3-tri-fluoropropene. 7. The process of claim 6, wherein the 2-chloro-2,3,3,3-tetrafluoropropane is dehydrochlorinated to provide 2,3,3,3-tetrafluoropropene. 8. The process of claim 1, wherein the chlorinated and/or fluorinated alkanes have the formula CH4-a-bClaFb, wherein a and b are each independently 0-3 and 4-a-b is at least one. 9. The process of claim 8, wherein the process comprises at least one thermally sensitive component selected from the group consisting of a reactant, product, byproduct, catalyst, or combinations of these. 10. The process of claim 1, further comprising one or more of i) reducing fouling within the process and/or minimizing the impact of any fouling that may occur, ii) recycling at least a portion of any unreacted reactants, products, by-products and/or diluents, and/or iii) purification of at least one product and/or byproduct of the reaction. 11. The process of claim 10, wherein reducing fouling within the process comprises incorporating a diluent into the process, wherein the diluent is a byproduct of the process.
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이 특허에 인용된 특허 (86)
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상세보기
Van Der Puy Michael ; Eibeck Richard Elmer ; Madhavan B. V. Bindu ; Tung Hsueh Sung ; Ellis Lois Anne Short, Process for the preparation of fluorine containing hydrohalocarbons.
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