利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

164 条记录 (耗时 0.033 秒)

    COPRODUCTION OF HYDROFLUOROOLEFINS
    43.
    发明申请
    COPRODUCTION OF HYDROFLUOROOLEFINS 失效
    氢氧化铝的共同制备

    公开(公告)号：US20090018375A1

    公开(公告)日：2009-01-15

    申请号：US12281666

    申请日：2007-03-29

    申请人： Mario Joseph Nappa

    发明人： Mario Joseph Nappa

    IPC分类号： C07C17/23

    CPC分类号： C07C17/25 ,  C07C17/38 ,  C07C17/383 ,  C07C21/18

    摘要： Disclosed is a process for the co-manufacture of the hydrofluoroolefins HFC-1225ye and HFC-1234yf. The process comprises contacting a blend of 1,1,1,2,3,3-hexafluoropropane and 1,1,1,2,3-pentafluoropropane at a temperature of from about 200° C. to about 500° C. with a catalyst, optionally in the presence of an inert gas. The catalyst includes, but is not limited to, aluminum fluoride; fluorided alumina; metals on aluminum fluoride; metals on fluorided alumina; oxides, fluorides, and oxyfluorides of magnesium, zinc and mixtures of magnesium and zinc and/or aluminum; lanthanum oxide and fluorided lanthanum oxide; chromium oxides, fluorided chromium oxides, and cubic chromium trifluoride; carbon, acid-washed carbon, activated carbon, three dimensional matrix carbonaceous materials; and metal compounds supported on carbon. The metal compounds are oxides, fluorides, and oxyfluorides of at least one metal selected from the group consisting of sodium, potassium, rubidium, cesium, yttrium, lanthanum, cerium, praseodymium, neodymium, samarium, chromium, iron, cobalt, rhodium, nickel, copper, zinc, and mixtures thereof. The product hydrofluoroolefins are separated from unreacted hydrofluorocarbons and hydrogen fluoride. In another embodiment, the unreacted hydrofluorocarbons optionally may be recirculated back through the process.

    摘要翻译： 公开了共同制造氢氟烯烃HFC-1225ye和HFC-1234yf的方法。 该方法包括在约200℃至约500℃的温度下将1,1,1,2,3,3-六氟丙烷和1,1,1,2,3-五氟丙烷的共混物与 催化剂，任选地在惰性气体存在下。 催化剂包括但不限于氟化铝; 氟化氧化铝; 氟化铝上的金属; 氟化氧化铝上的金属; 镁，锌以及镁和锌和/或铝的混合物的氧化物，氟化物和氟氧化物; 氧化镧和氟化镧氧化物; 铬氧化物，氟化铬氧化物和立方三氟化铬; 碳，酸洗碳，活性炭，三维基质碳质材料; 和负载在碳上的金属化合物。 金属化合物是选自钠，钾，铷，铯，钇，镧，铈，镨，钕，钐，铬，铁，钴，铑，铬中的至少一种金属的氧化物，氟化物和氟氧化物 ，铜，锌及其混合物。 产物氢氟烯烃与未反应的氢氟烃和氟化氢分离。 在另一个实施方案中，未反应的氢氟烃任选地可以通过该方法再循环。

    Catalytic manufacture of pentafluoropropenes
    48.
    发明授权
    Catalytic manufacture of pentafluoropropenes 失效
    催化制备五氟丙烯

    公开(公告)号：US06369284B1

    公开(公告)日：2002-04-09

    申请号：US09355235

    申请日：1999-07-26

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

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

    IPC分类号： C07C1725

    CPC分类号： B01J27/12 ,  B01J21/18 ,  B01J37/084 ,  C07C17/25 ,  Y02P20/582 ,  C07C21/18

    摘要： A process is disclosed for the manufacture of a pentafluoropropene of the formula: CFX═CYCF3 where X is selected from H and F and where Y is F when X is H and Y is H when X is F. The process involves contacting a hexafluoropropane of the formula: CF2XCHYCF3 at a temperature of from about 200° C. to 500° C. with a catalyst, optionally in the presence of an inert gas. Suitable catalysts include (1) 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 (e.g., 1:9), (2) lanthanum fluoride, (3) fluorided lanthanum oxide, (4) activated carbon, and (5) three-dimensional matrix carbonaceous materials.

    摘要翻译： 公开了用于制造下式的五氟丙烯的方法：其中X选自H和F，其中当X为H时Y为F，X为F时Y为H时，Y为H.该方法包括使六氟丙烷与 式中：CF 2 XCHYCF 3在约200℃至500℃的温度下与催化剂，任选在惰性气体存在下反应。 合适的催化剂包括（1）选自（a）至少一种选自镁，锌的氧化物，氟化物和氟氧化物以及镁和锌的混合物的化合物的催化剂，和任选地（b）至少一种选自氧化物，氟化物和 铝的氟化物; 条件是所述催化剂中铝与镁和锌的原子比为约1:4或更小（例如1:9），（2）氟化镧，（3）氟化镧氧化物，（4）活化 碳，和（5）三维基质碳质材料。

    Preparation of fluorinated propanes and pentanes
    49.
    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
    50.
    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.