公开(公告)号：US07029599B2

公开(公告)日：2006-04-18

申请号：US11014333

申请日：2004-12-16

申请人： Barbara Haviland Minor ,  Mario J. Nappa ,  Allen C. Sievert

发明人： Barbara Haviland Minor ,  Mario J. Nappa ,  Allen C. Sievert

IPC分类号： C09K5/04

CPC分类号： C09K5/045 ,  C09K2205/112 ,  C09K2205/22

摘要： Disclosed herein are 1,1,1,3,3-pentafluorobutane refrigerant or heat transfer fluid compositions further comprising fluoroether, which are useful in refrigerain or air conditioning apparatus or as heat transfer fluids. The compositions of the present invention are also useful in centrifugal compressor apparatus that employ two-stage compressors or single slab.single pass heat exchangers.

摘要翻译： 本文公开了还包含氟代醚的1,1,1,3,3-五氟丁烷制冷剂或传热流体组合物，其可用于制冷剂或空调设备或作为传热流体。 本发明的组合物也可用于使用两级压缩机或单片式单通道热交换器的离心式压缩机设备中。

公开(公告)号：US5475167A

公开(公告)日：1995-12-12

申请号：US390599

申请日：1995-02-17

申请人： Mario J. Nappa ,  V. N. Mallikarjuna Rao ,  William R. Williams

发明人： Mario J. Nappa ,  V. N. Mallikarjuna Rao ,  William R. Williams

IPC分类号： B01J23/26 ,  B01J37/08 ,  C07C17/20 ,  C07C17/08

CPC分类号： B01J37/088 ,  B01J23/26 ,  C07C17/206

摘要： A process is disclosed for the preparation of pentafluoroethane from chlorotetrafluoroethane (the yield of pentafluoroethane is at least 50 mole percent based upon the amount of chlorofluoroethane reacted with HF) with particularly low levels of chlorofluoroethanes. The process involves providing sufficient pretreatment (where necessary) of a Cr.sub.2 O.sub.3 catalyst with at least one agent selected from the group consisting of CO, H.sub.2, H.sub.2 O and mixtures thereof in the gaseous state such that the total chlorofluoroethane content of said product stream is less than 1 mole percent. Certain high surface area catalysts may be used without such pretreatment.

摘要翻译： 公开了从氯四氟乙烷制备五氟乙烷的方法（五氟乙烷的产率基于与HF反应的氯氟乙烷的量至少为50摩尔％），具有特别低的氯氟乙烷含量。 该方法包括在气态下用至少一种选自CO，H 2，H 2 O及其混合物的试剂提供Cr 2 O 3催化剂足够的预处理（必要时），使得所述产物流的总氯氟乙烷含量小于 1摩尔％。 某些高表面积催化剂可以在没有这种预处理的情况下使用。

公开(公告)号：US5414165A

公开(公告)日：1995-05-09

申请号：US282940

申请日：1994-07-29

申请人： Mario J. Nappa ,  Allen C. Sievert

发明人： Mario J. Nappa ,  Allen C. Sievert

IPC分类号： B01J23/26 ,  B01J27/132 ,  C07B61/00 ,  C07C17/20 ,  C07C19/08 ,  C07C17/08

CPC分类号： C07C19/08 ,  C07C17/206

摘要： A process is disclosed for producing 1,1,1,3,3,3-hexafluoropropane with high selectivity. 1,1,1,3,3,3-hexachloropropane is contacted with hydrogen fluoride in the vapor phase at a temperature of from about 200.degree. C. to 400.degree. C. in the presence of a catalyst comprising trivalent chromium, to produce a fluorinated product containing CF.sub.3 CH.sub.2 CF.sub.3 and its haloprecursors (i.e., compounds which may be recycled for further reaction with HF) with a total selectivity of at least about 95 percent; and a sufficient amount of said haloprecursors is reacted with hydrogen fluoride in the vapor phase at a temperature of from 200.degree. C. to 400.degree. C. in the presence of a catalyst comprising trivalent chromium to provide an overall selectivity to 1,1,1,3,3,3-hexafluoropropane of at least about 95 percent based upon the amount of 1,1,1,3,3,3-hexachloropropane initially reacted with HF.

摘要翻译： 公开了一种以高选择性生产1,1,1,3,3,3-六氟丙烷的方法。 在含有三价铬的催化剂存在下，将1,1,1,3,3,3-六氯丙烷与气相中的氟化氢在约200℃-400℃的温度下接触，以产生 含有CF 3 CH 2 CF 3及其卤代反应物的氟化产物（即可再循环用于与HF进一步反应的化合物），总选择性为至少约95％; 并且在包含三价铬的催化剂存在下，将足够量的所述卤代物与气相中的氟化氢在200℃至400℃的温度下反应，以提供对1,1,1 ，基于最初与HF反应的1,1,1,3,3,3-六氯丙烷的量，至少约95％的3,3,3-六氟丙烷。

公开(公告)号：US5409625A

公开(公告)日：1995-04-25

申请号：US140804

申请日：1993-10-21

申请人： Mario J. Nappa ,  V. N. Mallikarjuna Rao ,  Allen C. Sievert

发明人： Mario J. Nappa ,  V. N. Mallikarjuna Rao ,  Allen C. Sievert

IPC分类号： C07C17/093 ,  C07C19/08 ,  C07C29/32 ,  C07C49/08 ,  C07C51/58 ,  C07C303/24 ,  C07C305/26 ,  C09K5/04 ,  C09K3/18 ,  C11D7/30 ,  C23G5/028

CPC分类号： C07C17/093 ,  C07C19/08 ,  C07C29/32 ,  C07C303/24 ,  C07C49/08 ,  C07C51/58 ,  Y02P20/582

摘要： Linear hydrofluorocarbons of the formula XCF.sub.2 (CF.sub.2).sub.n CH.sub.2 F where X is H or F, and n is 1 to 7 when X is H and 0 to 7 when X is F, are produced by a vapor phase catalytic reaction of HF with corresponding compounds of the formula XCF.sub.2 (CF.sub.2).sub.n CH.sub.2 OY where Y is --(CO)Cl or --SO.sub.2 Cl. Azeotropic compositions with HF (e.g., an azeotrope of CHF.sub.2 CF.sub.2 CH.sub.2 F and HF) are provided, and a portion of the linear hydrofluorocarbon product (e.g., a portion of the CHF.sub.2 CF.sub.2 CH.sub.2 F) may be recovered as an azeotropic composition and recycled.

摘要翻译： 式XCF2（CF2）nCH2F的线性氢氟烃，其中X为H或F，当X为H时，n为1至7，X为F时为n至0，通过HF与相应的化合物 式XCF2（CF2）nCH2OY，其中Y是 - （CO）Cl或-SO2Cl。 提供了具有HF的共沸组合物（例如，CHF 2 CF 2 CH 2 F和HF的共沸物），并且可以将一部分直链氢氟烃产物（例如CHF2CF2CH2F的一部分）作为共沸组合物回收并再循环。

公开(公告)号：US5395999A

公开(公告)日：1995-03-07

申请号：US139449

申请日：1993-10-20

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

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

IPC分类号： B01J23/26 ,  C07B61/00 ,  C07C17/00 ,  C07C17/06 ,  C07C17/10 ,  C07C17/20 ,  C07C17/21 ,  C07C19/08 ,  C07C19/12

CPC分类号： C07C19/12 ,  C07C17/00 ,  C07C17/10 ,  C07C17/206 ,  C07C17/21 ,  C07C19/08 ,  Y02P20/582

摘要： A chlorofluorination process is disclosed which employs a catalyst comprising chromium oxide for producing halohydrocarbons of the formula CHXFCF.sub.3 (where X is selected from Cl and F). The process is characterized by feeding a combination of components comprising (i) at least one halohydrocarbon starting compound selected from CHCl.dbd.CCl.sub.2 and CH.sub.2 ClCF.sub.3, (ii) hydrogen fluoride and (iii) chlorine, to a reaction zone; contacting said combination of compounds in said reaction zone with a catalyst comprising chromium oxide at an elevated temperature to produce reaction zone products containing halohydrocarbons of the formula CHXFCF.sub.3 together with halohydrocarbon reaction products of the formula CHYClCF.sub.3 (wherein Y is selected from Cl and H); and recovering at least a portion of the reaction zone products from the reaction zone including at least one halohydrocarbon of the formula CHXFCF.sub.3. Optionally, a portion of the reaction zone products can be recycled to the reaction zone; and the combination of components contacted with the catalyst can optionally further comprise at least one halohydrocarbon recycle compound of said formula CHYClCF.sub.3. The process may be controlled to produce halohydrocarbon compounds of the formula CHXFCF.sub. 3 in the recovered reaction products as the major component of the halogen-substituted hydrocarbon reaction products in the recovered reaction products.

摘要翻译： 公开了一种氯氟化方法，其使用包含氧化铬的催化剂来制备式CHXFCF 3（其中X选自Cl和F）的卤代烃。 该方法的特征在于进料组分，其包含（i）至少一种选自CHCl = CCl 2和CH 2 ClCF 3的卤代烃起始化合物，（ii）氟化氢和（ⅲ）氯）至反应区; 使所述反应区中的化合物的组合与包含氧化铬的催化剂在升高的温度下接触，以产生含有式CHXFCF3的卤代烃与式CHYClCF3（其中Y选自Cl和H）的卤代烃反应产物的反应区产物。 以及从反应区回收至少一部分反应区产物，包括至少一种式CHXFCF3的卤代烃。 任选地，一部分反应区产物可以再循环到反应区; 并且与催化剂接触的组分的组合可以任选地进一步包含至少一种所述式CHYClCF 3的卤代烃再循环化合物。 可以控制该方法以在回收的反应产物中产生式CHXFCF 3的卤代烃化合物作为回收反应产物中卤素取代的烃反应产物的主要组分。

公开(公告)号：US5258561A

公开(公告)日：1993-11-02

申请号：US973015

申请日：1992-11-06

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

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

IPC分类号： C07C17/10 ,  C07C19/08

CPC分类号： C07C17/10

摘要： A chlorofluorination process is disclosed which employs a catalyst comprising chromium oxide for producing halohydrocarbons of the formula CHXFCF.sub.3 (where X is selected from Cl and F). The process is characterized by feeding a combination of components comprising, (i) at least one halohydrocarbon starting compound of the formula CY.sub.3 CH.sub.2 R.sup.1 (where R.sup.1 is selected from the group of H and F and each Y is independently selected from the group of Cl and F), (ii) hydrogen fluoride and (iii) chlorine to a reaction zone; contacting said combination of compounds in said reaction zone with a catalyst comprising chromium oxide at an elevated temperature to produce reaction zone products containing halohydrocarbon reaction products of the formula CHXFCF.sub.3 together with halohydrocarbons of the formula CZ.sub.3 CHR.sup.2 R.sup.3 (wherein R.sup.2 is selected from the group of H and Cl, R.sup.3 is selected from the group of H, Cl and F, and each Z is independently selected from Cl and F); and recovering at least a portion of the reaction products from the reaction zone including at least one halohydrocarbon of the formula CHXFCF.sub. 3. Optionally, a portion of the reaction zone products can be recycled to the reaction zone; and the combination of components contacted with the catalyst can optionally further comprise at least one halohydrocarbon recycle compound of said formula CZ.sub.3 CHR.sup.2 R.sup.3. The process may be controlled to produce compounds of the formula CHXFCF.sub.3 in the recovered reaction products as the major component of the halogen-substituted hydrocarbon reaction products in the recovered reaction products.

摘要翻译： 公开了一种氯氟化方法，其使用包含氧化铬的催化剂来制备式CHXFCF 3（其中X选自Cl和F）的卤代烃。 该方法的特征在于进料组分包括：（i）至少一种式CY3CH2R1的卤代烃起始化合物（其中R 1选自H和F基团，并且每个Y独立地选自Cl和F ），（ii）氟化氢和（iii）氯至反应区; 使所述反应区中的化合物的组合与包含氧化铬的催化剂在升高的温度下接触以产生含有式CHXFCF3的卤代烃反应产物与式CZ3CHR2R3的卤代烃的反应区产物（其中R2选自H和 Cl，R 3选自H，Cl和F，Z各自独立地选自Cl和F）; 并从反应区回收至少一部分反应产物，包括至少一种式CHXFCF 3的卤代烃。任选地，一部分反应区产物可以再循环到反应区; 并且与催化剂接触的组分的组合可以任选地进一步包含至少一种所述式CZ 3 CHR 2 R 3的卤代烃再循环化合物。 可以控制该方法以在回收的反应产物中产生式CHXFCF3的化合物作为回收的反应产物中卤素取代的烃反应产物的主要组分。

公开(公告)号：US5091168A

公开(公告)日：1992-02-25

申请号：US567815

申请日：1990-08-15

申请人： Mario J. Nappa

发明人： Mario J. Nappa

IPC分类号： B01J27/12 ,  C01B9/08 ,  C01G1/06 ,  C01G33/00 ,  C01G35/02 ,  C07B35/08 ,  C07B37/00 ,  C07B61/00 ,  C07C17/087 ,  C07C17/21

CPC分类号： C07C17/087 ,  B01J27/12 ,  C01B9/08 ,  C01G33/00 ,  C01G35/02 ,  C07C17/21 ,  C01P2006/80

摘要： A method of producing an anhydrous niobium or tantalum pentafluoride involving reacting the corresponding pentoxide or oxyhalide with an excess of anhydrous hydrogen fluoride in the presence of a sufficient dehydrating agent (e.g., COCl.sub.2, SOCl.sub.2 or SO.sub.2 Cl.sub.2) to react with any water formed. Such a process is useful to produce a catalyticallyactive anhydrous niobium or tantalum pentafluoride in essentially a single liquid phase reaction step.

摘要翻译： 一种制备无水铌或五氟化钽的方法，包括在足够的脱水剂（例如COCl 2，SOCl 2或SO 2 Cl 2）存在下使相应的五氧化物或卤氧化物与过量的无水氟化氢反应，以与形成的任何水反应。 这种方法在基本上单一液相反应步骤中可用于制备催化活性无水铌或五氟化钽。

公开(公告)号：US4960951A

公开(公告)日：1990-10-02

申请号：US480351

申请日：1990-02-14

申请人： Mario J. Nappa ,  Allen C. Sievert ,  Walter R. Tong

发明人： Mario J. Nappa ,  Allen C. Sievert ,  Walter R. Tong

IPC分类号： C07C43/12

CPC分类号： C07C43/126

摘要： Novel perfluoropolyethers, such as perfluorodipentaerythritol hexaethyl ether, and their intermediates exhibit excellent chemical and thermal stability and are useful as vapor phase soldering fluids and convection cooling liquids.

摘要翻译： 新型全氟聚醚如全氟二季戊四醇六乙醚及其中间体表现出优异的化学和热稳定性，可用作气相焊液和对流冷却液。