Azeotrope compositions comprising tridecafluoro-3-heptene and hydrogen fluoride and uses thereof
    2.
    发明申请
    Azeotrope compositions comprising tridecafluoro-3-heptene and hydrogen fluoride and uses thereof 有权
    包含十三氟-3-庚烯和氟化氢的共沸组合物及其用途

    公开(公告)号:US20070100176A1

    公开(公告)日:2007-05-03

    申请号:US11590455

    申请日:2006-10-31

    IPC分类号: C07C17/38

    摘要: Disclosed herein are azeotrope and near-azeotrope compositions comprising 1,1,1,2,2,4,5,5,6,6,7,7,7-tridecafluoro-3-heptene (HFC-162-13mczy, CF3CF2CH═CFCF2CF2CF3) and 1,1,1,2,2,3,5,5,6,6,7,7,7-tridecafluoro-3-heptene (HFC-162-13mcyz, CF3CF2CF═CHCF2CF2CF3) and hydrogen fluoride (HF) and to azeotrope and near-azeotrope compositions comprising 1,1,1,2,2,3,4,5,5,6,6,7,7,7-tetradecafluoroheptane and hydrogen fluoride (HF). These compositions are useful in processes to produce and purify HFC-162-13mcyz, HFC-162-13mczy and HFC-63-14mee.

    摘要翻译: 本文公开了包含1,1,1,2,2,4,5,5,6,6,7,7,7-三氟-3-庚烯的共沸物和近共沸组合物(HFC-162-13mczy, 3/3 CF 2 CH 2 CF 2 CF 2 CH 2 CF 3)和1,1 ,1,2,2,3,5,5,6,6,7,7,7-三氟-3-庚烯(HFC-162-13mcyz,CF 3 CF 2, (HF)和共沸物和近共沸组合物组成的组合物,其包含1,2,3,3, 1,1,2,2,3,4,5,5,6,6,7,7,7-十四氟代庚烷和氟化氢(HF)。 这些组合物可用于生产和纯化HFC-162-13mcyz,HFC-162-13mczy和HFC-63-14mee的方法。

    Noncatalytic manufacture of 1,1,3,3,3-pentafluoropropene from 1,1,1,3,3,3-hexafluoropropane
    6.
    发明申请
    Noncatalytic manufacture of 1,1,3,3,3-pentafluoropropene from 1,1,1,3,3,3-hexafluoropropane 审中-公开
    从1,1,1,3,3,3-六氟丙烷非催化制备1,1,3,3,3-五氟丙烯

    公开(公告)号:US20060094911A1

    公开(公告)日:2006-05-04

    申请号:US11259901

    申请日:2005-10-27

    IPC分类号: C07C17/25

    摘要: 1,1,3,3,3-Pentafluoropropene (CF3CH═CF2, HFC-1225zc) can be produced by pyrolyzing 1,1,1,3,3,3-hexafluoropropane (CF3CH2CF3, HFC-236fa) in the absence of dehydrofluorination catalyst at temperatures of from about 700° C. to about 1000° C. and total pressures of about atmosphere pressure in an empty, tubular reactor, the interior surfaces of which comprise materials of construction resistant to hydrogen fluoride.

    摘要翻译: 1,1,3,3,3-五氟丙烯(CF 3 CH-CF 2 H 2,HFC-1225zc)可以通过将1,1,1,3, 在不存在脱氟化氢催化剂的情况下,在约700℃的温度下,将3,3-六氟丙烷(CF 3 CH 2 CH 3 CF 3,HFC-236fa) 在空的管式反应器中的约+约1000℃和约大气压的总压力,其内表面包括耐氟化氢的结构材料。

    Process for the manufacture of halocarbons and selected compounds and azeotropes with HF
    7.
    发明申请
    Process for the manufacture of halocarbons and selected compounds and azeotropes with HF 有权
    用于制造卤代烃和所选化合物以及与HF共沸的方法

    公开(公告)号:US20050080302A1

    公开(公告)日:2005-04-14

    申请号:US10956672

    申请日:2004-10-01

    摘要: A liquid phase process is disclosed for producing halogenated alkane adducts of the formula CAR1R2CBR3R4 (where A, B, R1, R2, R3, and R4 are as defined in the specification) which involves contacting a corresponding halogenated alkane, AB, with a corresponding olefin, CR1R2═CR3R4 in a dinitrile or cyclic carbonate ester solvent which divides the reaction mixture into two liquid phases and in the presence of a catalyst system containing (i) at least one catalyst selected from monovalent and divalent copper; and optionally (ii) a promoter selected from aromatic or aliphatic heterocyclic compounds which contain at least one carbon-nitrogen double bond in the heterocyclic ring. When hydrochlorofluorocarbons are formed, the chlorine content may be reduced by reacting the hydrochlorofluorocarbons with HF. New compounds disclosed include CF3CF2CCl2CH2CCl3, CF3CCl2CH2CH2Cl and CF3CCl2CH2CHClF. These compounds are useful as intermediates for producing hydrofluorocarbons. Azeotropes of CClF2CH2CF3 with HF and azeotropes of CF3CH2CHF2 with HF are also disclosed; as are process for producing such azeotropes. A process for purification of certain hydrofluorocarbons and/or chloro-precursors thereof from mixtures of such compounds with HF is also disclosed.

    摘要翻译: 公开了用于制备式CAR 1 R 2 CBR 3 R 4的卤代烷烃加成物的液相方法(其中A,B,R 1,R 2,R 3, 和R 4如说明书中所定义),其包括将相应的卤代烷烃AB与相应的烯烃CR 1 R 2 = CR 3 R 4在二腈或环状 碳酸酯溶剂,其将反应混合物分成两个液相,并且在含有(i)至少一种选自一价和二价铜的催化剂的催化剂体系的存在下, 和任选地(ii)选自在杂环中含有至少一个碳 - 氮双键的芳族或脂族杂环化合物的促进剂。 当形成氢氯氟烃时,可以通过氢氯氟烃与HF反应来降低氯含量。 所公开的新化合物包括CF 3 CF 2 CCl 2 CH 2 ClCl 3,CF 3 CCl 2 CH 2 CH 2 Cl和CF 3 CCl 2 CH 2 CHClF。 这些化合物可用作生产氢氟烃的中间体。 还公开了CClF 2 CH 2 CF 3与HF的共沸物和CF 3 CH 2 CHF 2与HF的共沸物质; 生产这种共沸物的方法也是如此。 还公开了从这种化合物与HF的混合物中纯化某些氢氟烃和/或其氯前体的方法。

    Welding material assembly and method
    8.
    发明授权
    Welding material assembly and method 有权
    焊接材料组装及方法

    公开(公告)号:US06346684B1

    公开(公告)日:2002-02-12

    申请号:US09518646

    申请日:2000-03-03

    IPC分类号: B23K1100

    摘要: A welding material assembly is constructed and arranged to position a welding material in electrically conductive relation between exterior surface portions of first and second weldable members at a location where the first and second weldable members are to be joined. The welding material assembly includes at least one welding material member mounted on a flexible carrier sheet in a predetermined arrangement, each welding material member being constructed of an electrically conductive metallic welding material capable of melting when heated by application of an electrical current and each carrier sheet being constructed of a material that is electrically nonconductive. Each welding material member is mounted on the sheet such that when the sheet is placed between the exterior surfaces of said first and second weldable members to be welded each said welding material member is electrically conductively disposed therebetween.

    摘要翻译: 焊接材料组件被构造和布置成将第一和第二可焊接构件的外表面部分之间的导电关系的焊接材料定位在第一和第二可焊接构件要被接合的位置处。 焊接材料组件包括以预定布置安装在柔性载体片材上的至少一个焊接材料部件,每个焊接材料部件由能够通过施加电流加热而熔化的导电金属焊接材料构成,并且每个载体片材 由不导电的材料构成。 每个焊接材料部件安装在片材上,使得当片材被放置在待焊接的所述第一和第二可焊接部件的外表面之间时,每个所述焊接材料部件之间导电地设置在其间。

    Production of sulfur from sulfur dioxide obtained from flue gas
    9.
    发明授权
    Production of sulfur from sulfur dioxide obtained from flue gas 失效
    从烟气中获得的二氧化硫产生硫

    公开(公告)号:US4837001A

    公开(公告)日:1989-06-06

    申请号:US19877

    申请日:1987-02-27

    申请人: Ralph Miller

    发明人: Ralph Miller

    摘要: This invention is a regenerable process for producing elemental sulfur from SO.sub.2 initially contained in a dilute gas source by: (1) absorbing the SO.sub.2 in a concentrated Na.sub.2 SO.sub.3 solution to convert most of the Na.sub.2 SO.sub.3 to Na.sub.2 S.sub.2 O.sub.5 ; (2) separating one third of the absorbed SO.sub.2 ; (3) reacting the residual mixture with solid NaHCO.sub.3 to form gaseous carbon dioxide used in a subsequent step and a slurry composed of solid Na.sub.2 SO.sub.3 suspended in a Na.sub.2 SO.sub.3 solution; (4) separating solid Na.sub.2 SO.sub.3 from the solution which is recycled to (1) above; (5) reducing solid Na.sub.2 SO.sub.3 to Na.sub.2 S; (6) reacting the Na.sub.2 S with H.sub.2 O and CO.sub.2 to form solid NaHCO.sub.3 which is recycled to (3) above and gaseous H.sub.2 S; (6) reacting gaseous H.sub.2 S with SO.sub.2 separated in (2) above to form water and elemental sulfur.

    Production of H.sub.2 S from SO.sub.2 obtained from flue gas
    10.
    发明授权
    Production of H.sub.2 S from SO.sub.2 obtained from flue gas 失效
    从烟气中生成H {HD 2 {B S从SO(HD 2 {B))

    公开(公告)号:US4141961A

    公开(公告)日:1979-02-27

    申请号:US807044

    申请日:1977-06-16

    申请人: Ralph Miller

    发明人: Ralph Miller

    摘要: This invention is a process for producing gaseous hydrogen sulfide in concentrated form from sulfur dioxide obtained from a dilute gas source by (1) reacting the SO.sub.2 with Na.sub.2 CO.sub.3 to form Na.sub.2 SO.sub.3, (2) reducing the Na.sub.2 SO.sub.3 to Na.sub.2 S, (3) reacting the Na.sub.2 S with NaHCO.sub.3 to form H.sub.2 S and Na.sub.2 CO.sub.3, (4) recycling part of the Na.sub.2 CO.sub.3 to the SO.sub.2 reaction step, (5) reacting the remainder of the Na.sub.2 CO.sub.3 with CO.sub.2 and H.sub.2 O to form NaHCO.sub.3 and (6) recycling the NaHCO.sub.3 to the H.sub.2 S formation reaction.

    摘要翻译: {PG,1本发明是一种从稀释气体源获得的二氧化硫浓缩形成气态硫化氢的方法,该方法是:(1)使SO {HD 2 {L与Na {hd 2 {1 CO {HD 3 { L形成Na {hd 2 {1 SO {HD 3 {L,(2))还原Na(hd 2 {1 SO {HD 3 {L至Na {hd 2 {1 S,(3) 2 {1 S与NaHCO 3(HD 3 {L以形成H {HD 2 {LS和Na {hd 2 {1 CO {HD 3 {L,(4)再生部分Na {hd 2 {1 CO { {L至SO {HD 2 {L反应步骤,(5)使剩余的Na {hd 2 {1 CO {HD 3 {L与CO(HD 2 {L和H {HD 2 {LO)形成NaHCO 3 {HD 3 {L和(6)将NaHCO 3(HD 3 {L转化为H {HD 2 {LS形成反应。