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    Process for the production of fluorocarbons
    1.
    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 The organic-enriched phase can be withdrawn from the bottom of the separation zone and subjected to distillation in a distillation column to recover essentially pure CF.sub.3 CClFCF.sub.3.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 The HF-enriched phase can be withdrawn from the top of the separation zone and subjected to distillation in a distillation column.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.

    Process for the manufacture of 1,1,1,3,3-pentafluoropropane
    2.
    发明授权
    Process for the manufacture of 1,1,1,3,3-pentafluoropropane 失效
    制备1,1,1,3,3-五氟丙烷的方法

    公开(公告)号：US6093859A

    公开(公告)日：2000-07-25

    申请号：US323736

    申请日：1999-06-01

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

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

    IPC分类号： B01J27/06 ,  B01J21/10 ,  B01J23/06 ,  B01J23/26 ,  B01J27/10 ,  B01J27/12 ,  B01J27/125 ,  B01J27/132 ,  B01J27/138 ,  C07B61/00 ,  C07C17/25 ,  C07C17/354 ,  C07C17/383 ,  C07C19/08

    CPC分类号： C07C19/08 ,  B01J27/10 ,  B01J27/12 ,  C07C17/25 ,  C07C17/354 ,  C07C17/383 ,  B01J21/10 ,  B01J23/06 ,  B01J23/26 ,  B01J27/125 ,  B01J27/132 ,  B01J27/138

    摘要： A process is disclosed for producing the hydrofluorocarbon CF.sub.3 CH.dbd.CF.sub.2. The process involves dehydrofluorinating CF.sub.3 CH.sub.2 CF.sub.3 at an elevated temperature in the vapor phase over a catalyst of (1) aluminum fluoride, (2) fluorided alumina, (3) metal supported on a trivalent aluminum compound containing fluoride anion, (4) lanthanum fluoride, (5) fluorided lanthanum oxide, (6) metal supported on a trivalent lanthanum compound containing fluoride anion, (7) trivalent chromium compounds and/or (8) catalysts of (a) at least one compound selected from the oxides, fluorides and oxyfluorides of magnesium, zinc and mixtures of magnesium and zinc, and optionally (b) at least one compound selected from the oxides, fluorides and oxyfluorides of aluminum, provided that the atomic ratio of aluminum to the total of magnesium and zinc in said catalyst is about 1:4, or less, to produce a product containing CF.sub.3 CH.dbd.CF.sub.2 and HF. The CF.sub.3 CH.dbd.CF.sub.2 may then be reacted in the vapor phase with hydrogen over a hydrogenation catalyst in the presence of HF to produce CF.sub.3 CH.sub.2 CHF.sub.2.

    摘要翻译： 公开了一种生产氢氟烃CF 3 CH = CF 2的方法。 该方法包括在（1）氟化铝，（2）氟化氧化铝，（3）负载在含氟化物阴离子的三价铝化合物上的金属，（4）氟化镧（（ⅰ））的催化剂上，在气相中升高的温度下，将CF 3 CH 2 CF 3脱氟化氢 5）氟化镧氧化物，（6）负载在含氟化物阴离子的三价镧化合物上的金属，（7）三价铬化合物和/或（a）至少一种选自氧化物，氟化物和氟氧化物的化合物的催化剂 镁，锌和镁和锌的混合物，以及任选地（b）至少一种选自铝的氧化物，氟化物和氟氧化物的化合物，条件是铝与所述催化剂中镁和锌的原子比为约1 ：4或更少，以产生含有CF 3 CH = CF 2和HF的产物。 然后在HF存在下，CF 3 CH = CF 2可以在气相中与氢气在氢化催化剂上反应生成CF 3 CH 2 CHF 2。

    Process for the manufacture of 1,1,1,3,3-pentafluoropropane
    3.
    发明授权
    Process for the manufacture of 1,1,1,3,3-pentafluoropropane 失效
    制备1,1,1,3,3-五氟丙烷的方法

    公开(公告)号：US5945573A

    公开(公告)日：1999-08-31

    申请号：US5400

    申请日：1998-01-09

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

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

    IPC分类号： B01J27/06 ,  B01J21/10 ,  B01J23/06 ,  B01J23/26 ,  B01J27/10 ,  B01J27/12 ,  B01J27/125 ,  B01J27/132 ,  B01J27/138 ,  C07B61/00 ,  C07C17/25 ,  C07C17/354 ,  C07C17/383 ,  C07C19/08 ,  C07C17/34

    CPC分类号： C07C19/08 ,  B01J27/10 ,  B01J27/12 ,  C07C17/25 ,  C07C17/354 ,  C07C17/383 ,  B01J21/10 ,  B01J23/06 ,  B01J23/26 ,  B01J27/125 ,  B01J27/132 ,  B01J27/138

    摘要： A process is disclosed for producing the hydrofluorocarbon CF.sub.3 CH.sub.2 CHF.sub.2. The process involves dehydrofluorinating CF.sub.3 CH.sub.2 CF.sub.3 at an elevated temperature in the vapor phase over a catalyst of (1) aluminum fluoride, (2) fluorided alumina, (3) metal supported on a trivalent aluminum compound containing fluoride anion, (4) lanthanum fluoride, (5) fluorided lanthanum oxide, (6) metal supported on a trivalent lanthanum compound containing fluoride anion, (7) trivalent chromium compounds and/or (8) catalysts of (a) at least one compound selected from the oxides, fluorides and oxyfluorides of magnesium, zinc and mixtures of magnesium and zinc, and optionally (b) at least one compound selected from the oxides, fluorides and oxyfluorides of aluminum, provided that the atomic ratio of aluminum to the total of magnesium and zinc in said catalyst is about 1:4, or less, to produce a product containing CF.sub.3 CH.dbd.CF.sub.2 and HF; and reacting the CF.sub.3 CH.dbd.CF.sub.2 in the vapor phase with hydrogen over a hydrogenation catalyst in the presence of HF to produce CF.sub.3 CH.sub.2 CHF.sub.2.

    摘要翻译： 公开了用于生产氢氟烃CF 3 CH 2 CHF 2的方法。 该方法包括在（1）氟化铝，（2）氟化氧化铝，（3）负载在含氟化物阴离子的三价铝化合物上的金属，（4）氟化镧（（ⅰ））的催化剂上，在气相中升高的温度下将CF 3 CH 2 CF 3脱氟化氢 5）氟化镧氧化物，（6）负载在含氟化物阴离子的三价镧化合物上的金属，（7）三价铬化合物和/或（a）至少一种选自氧化物，氟化物和氟氧化物的化合物的催化剂 镁，锌和镁和锌的混合物，以及任选地（b）至少一种选自铝的氧化物，氟化物和氟氧化物的化合物，条件是铝与所述催化剂中镁和锌的原子比为约1 ：4或更少，以产生含有CF 3 CH = CF 2和HF的产物; 并在氢气存在下使氢气中的CF 3 CH = CF 2与氢气反应，生成CF 3 CH 2 CHF 2。

    1,1,1,2,3,3,3-heptafluoropropane manufacturing process
    4.
    发明授权
    1,1,1,2,3,3,3-heptafluoropropane manufacturing process 有权
    1,1,1,2,3,3,3-七氟丙烷制造方法

    公开(公告)号：US06281395B1

    公开(公告)日：2001-08-28

    申请号：US09283451

    申请日：1999-04-01

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

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

    IPC分类号： C07C1708

    CPC分类号： C07C17/087 ,  B01J23/26 ,  C07C17/21 ,  C07C19/08 ,  C07C21/18

    摘要： A process is disclosed for the manufacture of CF3CHFCF3 containing less than 0.01 ppm (CF3)2C═CF2. The process involves (a) contacting hexafluoropropene in the vapor phase at a temperature of less than about 260° C. with hydrogen fluoride in the presence of a selected fluorination catalyst or produce a product containing less than 10 parts (CF3)2C═CF2 per million parts of CF3CHFCF3; and (b) treating the product of (a) as necessary to remove excess (CF3)2C═CF2. Suitable catalysts include: (i) an activated carbon treated to contain from about 0.1 to about 10 weight % added alkali or alkaline earth metals, (ii) three dimensional matrix porous carbonaceous materials, (iii) supported metal catalysts comprising trivalent chromium, and (iv) unsupported chrome oxide prepared by the pyrolysis of (NH4)2Cr2O7.

    摘要翻译： 公开了用于制造含有小于0.01ppm（CF 3）2 C = CF 2的CF 3 CHFCF 3的方法。 该方法包括（a）在选择的氟化催化剂存在下，在小于约260℃的温度下，使氟化氢在气相中接触六氟丙烯，或者产生含有小于10份（CF 3）2 C = CF 2的产物 百万份CF3CHFCF3; 和（b）根据需要处理（a）的产物以除去过量（CF 3）2 C = CF 2。 合适的催化剂包括：（i）经处理以包含约0.1至约10重量％的加入的碱金属或碱土金属的活性炭，（ii）三维基体多孔碳质材料，（iii）包含三价铬的载体金属催化剂和（ iv）通过（NH 4）2 Cl 2 O 7的热解制备的无载体的氧化铬。

    Processes for producing 2,3,3,3-tetrafluoropropene, a process for producing 1-chloro-2,3,3,3-pentafluoropropane and azeotropic compositions of 1-chloro-2,3,3,3-tetrafluoropropene with HF
    10.
    发明授权
    Processes for producing 2,3,3,3-tetrafluoropropene, a process for producing 1-chloro-2,3,3,3-pentafluoropropane and azeotropic compositions of 1-chloro-2,3,3,3-tetrafluoropropene with HF 有权

    公开(公告)号：US07906693B2

    公开(公告)日：2011-03-15

    申请号：US12442955

    申请日：2007-10-31

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

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

    IPC分类号： C07C17/00 ,  C07C19/08

    CPC分类号： C07C17/25 ,  C07C17/23 ,  C07C17/278 ,  C07C21/18 ,  C07C19/08 ,  C07C19/10

    摘要： A process is disclosed for making CH2═CFCF3. The process involves contacting CH2ClCF2CF3 with H2 in a reaction zone in the presence of a catalyst including a catalytically effective amount of palladium supported on a support selected from chromium oxide, fluorinated chromium oxide, chromium fluoride, aluminum oxide, aluminum fluoride and/or fluorinated alumina, to produce CH2═CFCF3. The mole ratio of H2 to the CH2ClCF2CF3 fed to the reaction zone is between about 1:1 and about 4:1. Also disclosed is another process for making CH2═CFCF3 that involves (a) reacting CH2ClCF2CF3 with H2 in the presence of a catalytically effective amount of hydrogenation catalyst to form CH3CF2CF3; and (b) dehydrofluorinating CH3CF2CF3 from (a) to form CH2═CFCF3; and another process for making CH2═CFCF3 that involves (1) dehydrofluorinating CH2ClCF2CF3 in the presence of a catalytically effective amount of dehydrofluorination catalyst to form CHCl═CFCF3; and (2) hydrogenating CHCl═CFCF3 from (1) in the presence of a hydrogenation catalyst including a catalytically effective amount of palladium supported on a support selected from chromium oxide, fluorinated chromium oxide, chromium fluoride, aluminum oxide, aluminum fluoride and/or fluorinated alumina to form CH2═CFCF3. Also disclosed is a process for making CH2ClCF2CF5. This process involves reacting CH2ClF with CF2═CF2 in a reaction zone in the presence of a catalytically effective amount of an aluminum halide composition having a bulk formula of AlClxBryF3-x-y wherein the average value of x is 0 to 3, the average value of y is 0 to 3-x, provided that the average values of x and y are not both 0. Also disclosed is an azeotropic composition including CF3CF═CHCl and HF.