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    Tetrafluoropropene Production Processes
    32.
    发明申请
    Tetrafluoropropene Production Processes 有权
    四氟丙烯生产工艺

    公开(公告)号：US20100200798A1

    公开(公告)日：2010-08-12

    申请号：US12758839

    申请日：2010-04-13

    申请人： VELLIYUR NOTT MALLIKARJUNA RAO ,  Mario Joseph Nappa ,  Allen Capron Sievert

    发明人： VELLIYUR NOTT MALLIKARJUNA RAO ,  Mario Joseph Nappa ,  Allen Capron Sievert

    IPC分类号： C09K5/04

    CPC分类号： C07C21/18 ,  C07B2200/09 ,  C07C17/25

    摘要： A process is disclosed for the manufacture of CF3CF=CH2 and CF3CH=CHF. The process involves dehydrofluorinating CF3CHFCH2F in the presence of a dehydrofluorination catalyst to produce a product mixture comprising CF3CF=CH2 and CF3CH=CHF, and recovering said CF3CF=CH2 and CF3CH=CHF from the product mixture.The present invention also provides a composition comprising (a) the Z-isomer of CF3CH=CHF and (b) HF; wherein the HF is present in an effective amount to form an azeotropic combination with the Z-CF3CH=CHF.

    摘要翻译： 公开了用于制造CF 3 CF = CH 2和CF 3 CH = CHF的方法。 该方法包括在脱氟化氢催化剂存在下对CF 3 CHFCH 2 F进行脱氟化氢，以产生包含CF 3 CF = CH 2和CF 3 CH = CHF的产物混合物，并从产物混合物中回收所述CF 3 CF = CH 2和CF 3 CH = CHF。 本发明还提供了包含（a）CF 3 CH = CHF的Z-异构体和（b）HF的组合物; 其中HF以有效量存在以与Z-CF 3 CH = CHF形成共沸组合。

    Preparation of fluorinated propanes and pentanes
    36.
    发明授权
    Preparation of fluorinated propanes and pentanes 失效
    氟化丙烷和戊烷的制备

    公开(公告)号：US06229058B1

    公开(公告)日：2001-05-08

    申请号：US08919757

    申请日：1997-08-28

    申请人： Allen Capron Sievert ,  Mario Joseph Nappa

    发明人： Allen Capron Sievert ,  Mario Joseph Nappa

    IPC分类号： C07C1908

    CPC分类号： C07C19/14 ,  C07C17/23 ,  C07C17/278 ,  C07C19/10

    摘要： The instant invention relates to producing fluorinated propanes and pentanes. More particularly it relates to producing perhalofluoropropanes and pentanes by reacting dihalodifluoromethanes with polyfluoroethylenes, notably tetrafluoroethylene (TFE) and chlorotrifluoroethylene (CTFE) while in the presence of an aluminum chlorofluoride catalyst.

    摘要翻译： 本发明涉及产生氟化丙烷和戊烷。 更具体地说，涉及通过在二氯二氟甲烷与多氟乙烯（特别是四氟乙烯（TFE）和氯三氟乙烯（CTFE））反应的同时在氯氟化铝催化剂的存在下反应制备全氟氟丙烷和戊烷。

    Process for the production of fluorocarbons
    37.
    发明授权
    Process for the production of fluorocarbons 失效

    公开(公告)号：US6018083A

    公开(公告)日：2000-01-25

    申请号：US283450

    申请日：1999-04-01

    申请人： William H. Manogue ,  Mario Joseph Nappa ,  Allen Capron Sievert ,  V. N. Mallikarjuna Rao

    发明人： William H. Manogue ,  Mario Joseph Nappa ,  Allen Capron Sievert ,  V. N. Mallikarjuna Rao

    IPC分类号： C07C17/00 ,  C07C17/04 ,  C07C17/21 ,  C07C17/23 ,  C07C19/08 ,  C07C21/18 ,  C07C17/25 ,  C07C17/08

    CPC分类号： C07C21/18 ,  C07C17/00 ,  C07C17/04 ,  C07C17/21 ,  C07C17/23 ,  C07C19/08

    摘要： A process is disclosed for the separation of a mixture of HF and CF.sub.3 CClFCF.sub.3. The process involves placing the mixture in a separation zone at a temperature of from about -30.degree. C. to about 100.degree. C. and at a pressure sufficient to maintain the mixture in the liquid phase, whereby an organic-enriched phase comprising less than 50 mole percent HF is formed as the bottom layer and an HF-enriched phase comprising more than 90 mole percent HF is formed as the top layer. The organic-enriched phase can be withdrawn from the bottom of the separation zone and subjected to distillation in a distillation column to recover essentially pure CF.sub.3 CClFCF.sub.3. The distillate comprising HF and CF.sub.3 CClFCF.sub.3 can be removed from the top of the distillation column while essentially pure CF.sub.3 CClFCF.sub.3 can be recovered from the bottom of the distillation column. The HF-enriched phase can be withdrawn from the top of the separation zone and subjected to distillation in a distillation column. The distillate comprising HF and CF.sub.3 CClFCF.sub.3 can be removed from the top of the distillation column while essentially pure HF can be recovered from the bottom of the distillation column. If desired, the two distillates can be recycled to the separation zone.Also disclosed are compositions of hydrogen fluoride in combination with an effective amount of CF.sub.3 CClFCF.sub.3 to form an azeotrope or azeotrope-like composition with hydrogen fluoride. Included are compositions containing from about 38.4 to 47.9 mole percent CF.sub.3 CClFCF.sub.3.Also disclosed are processes for producing 1,1,1,2,3,3,3-heptafluoropropane. One process uses a mixture comprising HF and CF.sub.3 CClFCF.sub.3 and is characterized by preparing essentially pure CF.sub.3 CClFCF.sub.3 as indicated above, and reacting the CF.sub.3 CClFCF.sub.3 with hydrogen. Another process uses an azeotropic composition as described above, and reacts the CF.sub.3 CClFCF.sub.3 with hydrogen in the presence of HF.Also disclosed is a process for producing hexafluoropropene. This process is characterized by preparing essentially pure CF.sub.3 CClFCF.sub.3 as indicated above, and dehalogenating the CF.sub.3 CClFCF.sub.3.

    Tetrafluoropropene production processes
    40.
    发明授权
    Tetrafluoropropene production processes 有权
    四氟丙烯生产工艺

    公开(公告)号：US08377327B2

    公开(公告)日：2013-02-19

    申请号：US12758839

    申请日：2010-04-13

    申请人： Velliyur Nott Mallikarjuna Rao ,  Mario Joseph Nappa ,  Allen Capron Sievert ,  Ralph Newton Miller

    发明人： Velliyur Nott Mallikarjuna Rao ,  Mario Joseph Nappa ,  Allen Capron Sievert ,  Ralph Newton Miller

    IPC分类号： C09K5/04

    CPC分类号： C07C21/18 ,  C07B2200/09 ,  C07C17/25

    摘要： A process is disclosed for the manufacture of CF3CF═CH2 and CF3CH═CHF. The process involves dehydrofluorinating CF3CHFCH2F in the presence of a dehydrofluorination catalyst to produce a product mixture comprising CF3CF═CH2 and CF3CH═CHF, and recovering said CF3CF═CH2 and CF3CH═CHF from the product mixture. The present invention also provides a composition comprising (a) the Z-isomer of CF3CH═CHF and (b) HF; wherein the HF is present in an effective amount to form an azeotropic combination with the Z—CF3CH═CHF.

    摘要翻译： 公开了用于制造CF 3CF≡CH2和CF 3 CH = CHF的方法。 该方法包括在脱氟化氢催化剂存在下对CF 3 CHFCH 2 F进行脱氟化氢，以产生包含CF 3CF≡CH2和CF 3 CH = CHF的产物混合物，并从产物混合物中回收所述CF 3CF≡CH2和CF 3 CH = CHF。 本发明还提供了包含（a）CF 3 CH = CHF的Z-异构体和（b）HF的组合物; 其中HF以有效量存在以与Z-CF 3 CH = CHF形成共沸组合。