Catalytic hydrogenation of fluoroolefins, alpha-alumina supported palladium compositions and their use as hydrogenation catalysts

    公开(公告)号:US09598336B2

    公开(公告)日:2017-03-21

    申请号:US14115661

    申请日:2012-05-16

    摘要: A hydrogenation process is disclosed. The process involves reacting a fluoroolefin with H2 in a reaction zone in the presence of a palladium catalyst to produce a hydrofluoroalkane product, wherein the palladium catalyst comprises palladium supported on a carrier wherein the palladium concentration is from about 0.001 wt % to about 0.2 wt % based on the total weight of the palladium and the carrier. Also disclosed is a palladium catalyst composition consisting essentially of palladium supported on α-Al2O3 wherein the palladium concentration is from about 0.001 wt % to about 0.2 wt % based on the total weight of the palladium and the α-Al2O3. Also disclosed is a hydrogenation process comprising reacting a fluoroolefin with H2 in a reaction zone in the presence of a palladium catalyst to produce a hydrofluoroalkane product, characterized by: the palladium catalyst consisting essentially of palladium supported on α-Al2O3 wherein the palladium concentration is from about 0.001 wt % to about 0.2 wt % based on the total weight of the palladium and the α-Al2O3. Also disclosed is a hydrogenation process comprising (a) passing a mixture comprising fluoroolefin and H2 through a bed of palladium catalyst in a reaction zone wherein the palladium catalyst comprises palladium supported on a carrier; and (b) producing a hydrofluoroalkane product; characterized by: the palladium catalyst in the front of the bed having lower palladium concentration than the palladium catalyst in the back of the bed.

    CATALYTIC HYDROGENATION OF FLUOROOLEFINS, ALPHA-ALUMINA SUPPORTED PALLADIUM COMPOSITIONS AND THEIR USE AS HYDROGENATION CATALYSTS
    3.
    发明申请
    CATALYTIC HYDROGENATION OF FLUOROOLEFINS, ALPHA-ALUMINA SUPPORTED PALLADIUM COMPOSITIONS AND THEIR USE AS HYDROGENATION CATALYSTS 有权
    氟橡胶的催化氢化,支持铝的铝组合物及其作为氢化催化剂的用途

    公开(公告)号:US20140088328A1

    公开(公告)日:2014-03-27

    申请号:US14115661

    申请日:2012-05-16

    IPC分类号: C07C17/354 B01J23/44

    摘要: A hydrogenation process is disclosed. The process involves reacting a fluoroolefin with H2 in a reaction zone in the presence of a palladium catalyst to produce a hydrofluoroalkane product, wherein the palladium catalyst comprises palladium supported on a carrier wherein the palladium concentration is from about 0.001 wt % to about 0.2 wt % based on the total weight of the palladium and the carrier. Also disclosed is a palladium catalyst composition consisting essentially of palladium supported on α-Al2O3 wherein the palladium concentration is from about 0.001 wt % to about 0.2 wt % based on the total weight of the palladium and the α-Al2O3. Also disclosed is a hydrogenation process comprising reacting a fluoroolefin with H2 in a reaction zone in the presence of a palladium catalyst to produce a hydrofluoroalkane product, characterized by: the palladium catalyst consisting essentially of palladium supported on α-Al2O3 wherein the palladium concentration is from about 0.001 wt % to about 0.2 wt % based on the total weight of the palladium and the α-Al2O3. Also disclosed is a hydrogenation process comprising (a) passing a mixture comprising fluoroolefin and H2 through a bed of palladium catalyst in a reaction zone wherein the palladium catalyst comprises palladium supported on a carrier; and (b) producing a hydrofluoroalkane product; characterized by: the palladium catalyst in the front of the bed having lower palladium concentration than the palladium catalyst in the back of the bed.

    摘要翻译: 公开了一种氢化方法。 该方法包括在钯催化剂存在下在反应区中使氟代烯烃与H 2反应以产生氢氟烷烃产物,其中钯催化剂包含负载在载体上的钯,其中钯浓度为约0.001重量%至约0.2重量% 基于钯和载体的总重量。 还公开了一种钯催化剂组合物,其主要由负载在α-Al 2 O 3上的钯组成,其中钯的浓度为钯和α-Al 2 O 3的总重量的约0.001重量%至约0.2重量%。 还公开了一种氢化方法,其包括在钯催化剂存在下在反应区中使氟烯烃与H 2反应以产生氢氟烷烃产物,其特征在于:钯催化剂主要由负载在α-Al 2 O 3上的钯组成,其中钯浓度来自 约0.001重量%至约0.2重量%,基于钯和α-Al 2 O 3的总重量。 还公开了一种氢化方法,其包括(a)将包含氟代烯烃和H 2的混合物通过钯催化剂床在反应区中,其中钯催化剂包含负载在载体上的钯; 和(b)制备氢氟烷烃产物; 其特征在于:床的前面的钯催化剂的钯浓度低于床背部的钯催化剂。

    Tracer-containing compositions
    5.
    发明授权
    Tracer-containing compositions 失效
    含示踪剂的组合物

    公开(公告)号:US08562853B2

    公开(公告)日:2013-10-22

    申请号:US12621659

    申请日:2009-11-19

    IPC分类号: C09K5/00 C09K5/04

    摘要: The present invention relates to the field of compression refrigeration and air conditioning. Specifically, the present invention relates to a tracer-containing compositions comprising refrigeration/heating fluid and tracer compound(s). Additionally, the present invention relates to a method for detecting tracer compounds to identify gases after leaving the custody of the original manufacturer or prior source, and the verification of authenticity. The aforementioned method provides for the detection of tracer compounds, which in turn, may alert the refrigeration industry to when dilution, adulteration, contamination or other unauthorized practices have occurred with refrigeration products.

    摘要翻译: 本发明涉及压缩制冷和空调领域。 具体地,本发明涉及包含制冷/加热流体和示踪剂化合物的含示踪剂组合物。 此外,本发明涉及一种用于检测示踪剂化合物在离开原始制造商或先前来源的保管之后识别气体的方法以及真实性的验证。 上述方法提供了示踪剂化合物的检测,其又可以警告制冷行业在制冷产品中发生稀释,掺假,污染或其他未经授权的做法时。

    Preparation of hydrofluoroolefins by dehydrofluorination
    6.
    发明授权
    Preparation of hydrofluoroolefins by dehydrofluorination 有权
    通过脱氟化氢制备氢氟烯烃

    公开(公告)号:US08552227B2

    公开(公告)日:2013-10-08

    申请号:US12634755

    申请日:2009-12-10

    IPC分类号: C07C21/18

    摘要: A dehydrofluorination process is disclosed for making hydrofluoroolefins of the structure RfCH═CHRf, wherein each Rf is independently a perfluoroalkyl group or a perfluoroalkyl group having a terminal hydrogen. The process involves reacting RfCH2CHFRf with a basic aqueous solution to produce a product mixture comprising RfCH═CHRf.

    摘要翻译: 公开了用于制备结构RfCH = CHRf的氢氟烯烃的脱氟化氢方法,其中每个Rf独立地是全氟烷基或具有末端氢的全氟烷基。 该方法包括使RfCH 2 CHFRf与碱性水溶液反应以产生包含RfCH = CHRf的产物混合物。

    Purification of fluoroalkanesulfonate salts
    7.
    发明授权
    Purification of fluoroalkanesulfonate salts 有权
    氟烷基磺酸盐的纯化

    公开(公告)号:US08461378B2

    公开(公告)日:2013-06-11

    申请号:US12879553

    申请日:2010-09-10

    IPC分类号: C07C309/10

    CPC分类号: C07C303/44 C07C309/06

    摘要: A process for the purification of fluoroalkanesulfonate salt comprising (a) contacting a mixture of said salt and an inorganic salt contaminant with a solvent to selectively dissolve said fluoroalkanesulfonate salt in solution, and (b) isolating the solution, to yield a fluoroalkanesulfonate salt containing less than 500 micrograms of inorganic salt contaminant per gram of fluoroalkanesulfonate salt, or containing less than a maximum of 0.3% by weight of individual solvent.

    摘要翻译: 一种用于纯化氟烷基磺酸盐的方法,包括(a)将所述盐和无机盐污染物的混合物与溶剂接触以选择性地溶解溶液中的所述氟代烷基磺酸盐,和(b)分离溶液,得到含有较少量的氟代烷基磺酸盐 超过500微克无机盐污染物/克氟烷基磺酸盐,或含有少于最多0.3重量%的单一溶剂。

    AZEOTROPIC COMPOSITIONS COMPRISING FLUORINATED OLEFINS FOR CLEANING APPLICATIONS
    10.
    发明申请
    AZEOTROPIC COMPOSITIONS COMPRISING FLUORINATED OLEFINS FOR CLEANING APPLICATIONS 审中-公开
    包含用于清洁应用的氟化油的AZEOPTRIC组合物

    公开(公告)号:US20120190604A1

    公开(公告)日:2012-07-26

    申请号:US13435841

    申请日:2012-03-30

    IPC分类号: C11D17/00

    摘要: The present invention relates to azeotropic or azeotrope-like compositions comprising a fluorinated olefin having the formula E- or Z—C3F7CH═CHC3F7, and at least one alcohol, halocarbon, hydrofluorocarbon, fluoroether, or alkanes and combinations thereof. In one embodiment, the one compound selected from the group consisting of alcohols, halocarbons, fluoroalkyl ethers, hydrofluorocarbons, alkanes is either methanol, ethanol, iso-propanol, n-propanol, trans-1,2-dichloroethylene, cis-1,2-dichloroethylene, n-propyl bromide, C4F9OCH3, C4F9OC2H5, HFC-43-10mee, HFC-365mfc, heptane, or combinations thereof. In another embodiment, these compositions are useful in cleaning applications as a degreasing agent or defluxing agent for removing oils and/or other residues from a surface.

    摘要翻译: 本发明涉及包含具有式E-或Z-C 3 F 7 CH = CHC 3 F 7的氟化烯烃和至少一种醇,卤代烃,氢氟烃,氟醚或其烷烃及其组合的共沸或类共沸组合物。 在一个实施方案中,选自醇,卤代烃,氟代烷基醚,氢氟烃,烷烃的一种化合物是甲醇,乙醇,异丙醇,正丙醇,反式-1,2-二氯乙烯,顺式-1,2 二氯乙烯,正丙基溴,C 4 F 9 OCH 3,C 4 F 9 OC 2 H 5,HFC-43-10mee,HFC-365mfc,庚烷或其组合。 在另一个实施方案中,这些组合物可用于清洁用作脱脂剂或去除剂,用于从表面除去油和/或其它残余物。