Process for the manufacture of fluorinated olefins
    2.
    发明授权
    Process for the manufacture of fluorinated olefins 有权
    制造氟化烯烃的方法

    公开(公告)号:US07786333B2

    公开(公告)日:2010-08-31

    申请号:US12389110

    申请日:2009-02-19

    IPC分类号: C07C17/00 C07C17/10

    摘要: A process for the production of fluorinated olefins, preferably fluorinated propenes, by contacting a feed stream containing a fluorinated olefin and hydrogen with a first amount of catalyst to produce the hydrofluorocarbon, wherein a first exit stream contains unreacted fluorinated olefin and hydrogen; contacting the first exit stream with a second amount of catalyst to produce a hydrofluorocarbon, wherein the second amount of catalyst is preferably greater than the first amount of catalyst; and contacting the hydrofluorocarbon with a catalyst for dehydrohalogenation to produce a product stream of fluorinated olefin.

    摘要翻译: 通过使包含氟化烯烃和氢气的进料流与第一量催化剂接触以产生氢氟烃来生产氟化烯烃,优选氟化丙烯的方法,其中第一出口流含有未反应的氟化烯烃和氢; 使第一出口流与第二量的催化剂接触以产生氢氟烃,其中第二量的催化剂优选大于第一量的催化剂; 并将氢氟烃与用于脱卤化氢的催化剂接触以产生氟化烯烃的产物流。

    Tar fraction for driveway sealers using oxidized coal tar distillate
    3.
    发明授权
    Tar fraction for driveway sealers using oxidized coal tar distillate 失效
    使用氧化煤焦油馏出物的车道密封件的焦油馏分

    公开(公告)号:US4537635A

    公开(公告)日:1985-08-27

    申请号:US557784

    申请日:1983-12-05

    CPC分类号: C08L95/005 C10C3/04

    摘要: A driveway sealer less affected by temperature extremes can be made from an oxidized coal tar distillation cut. The sealer incorporates a middle cut crude distillate which is oxidized to produce a product of desired viscosity. The sealer incorporating this oxidized middle cut is less affected by extremes in weather as compared to regular sealer tar. It has more consistent physical properties. A significant distinguishing characteristic derived from the use of this tar in a driveway sealer is the reduced odor of the resulting sealer. The oxidation (condensation) step is carried out at elevated temperature by sparging copious quantities of air rapidly into the tar at elevated temperatures of the order of about 300.degree. F. to 800.degree. F. (200.degree. C.-430.degree. C.).

    摘要翻译: 不受温度极限影响的车道封口机可以由氧化煤焦油蒸馏切割制成。 密封剂包含中间馏分的粗馏出物,其被氧化以产生所需粘度的产物。 与普通封闭焦油相比,结合这种氧化中间切口的密封剂的天气受到极端的影响。 它具有更一致的物理性质。 在车道封口机中使用这种焦油所产生的显着特征是所得密封剂的气味降低。 氧化(冷凝)步骤在高温下通过在大约300°至800°F(200℃至430℃)的高温下将大量空气迅速喷入焦油中进行。 。

    Process for the manufacture of fluorinated alkanes
    4.
    发明授权
    Process for the manufacture of fluorinated alkanes 有权
    制造氟化烷烃的方法

    公开(公告)号:US07902410B2

    公开(公告)日:2011-03-08

    申请号:US11588671

    申请日:2006-10-27

    IPC分类号: C07C17/00 C07C21/00

    摘要: A process for the production of fluorinated alkanes by contacting a feed stream containing a fluorinated olefin and a reducing agent, preferably with a first amount of catalyst to produce a fluorinated alkane, at a first conversion level, wherein a first effluent stream contains unreacted fluorinated olefin and reducing agent; and contacting the first effluent stream under conditions effective to produce a higher level of conversion than said conversion level.

    摘要翻译: 通过使包含氟化烯烃和还原剂的进料流,优选与第一量的催化剂接触以产生氟化烷烃,以第一转化水平接触生产氟化烷烃的方法,其中第一流出物流含有未反应的氟化烯烃 和还原剂; 以及在有效地产生比所述转化水平更高水平的转化率的条件下接触第一流出物流。

    Process for manufacture of fluorinated olefins
    5.
    发明授权
    Process for manufacture of fluorinated olefins 有权
    氟化烯烃的制造方法

    公开(公告)号:US07560602B2

    公开(公告)日:2009-07-14

    申请号:US11588464

    申请日:2006-10-27

    IPC分类号: C07C17/00 C07C17/10

    摘要: A process for the production of fluorinated olefins, preferably fluorinated propenes, by contacting a feed stream containing a fluorinated olefin and hydrogen with a first amount of catalyst to produce the hydrofluorocarbon, wherein a first exit stream contains unreacted fluorinated olefin and hydrogen; contacting the first exit stream with a second amount of catalyst to produce a hydrofluorocarbon, wherein the second amount of catalyst is preferably greater than the first amount of catalyst; and contacting the hydrofluorocarbon with a catalyst for dehydrohalogenation to produce a product stream of fluorinated olefin.

    摘要翻译: 通过使包含氟化烯烃和氢气的进料流与第一量催化剂接触以产生氢氟烃来生产氟化烯烃,优选氟化丙烯的方法,其中第一出口流含有未反应的氟化烯烃和氢; 使第一出口流与第二量的催化剂接触以产生氢氟烃,其中第二量的催化剂优选大于第一量的催化剂; 并将氢氟烃与用于脱卤化氢的催化剂接触以产生氟化烯烃的产物流。

    PROCESS FOR THE MANUFACTURE OF FLUORINATED OLEFINS
    6.
    发明申请
    PROCESS FOR THE MANUFACTURE OF FLUORINATED OLEFINS 有权
    氟化烯烃的制备方法

    公开(公告)号:US20090209791A1

    公开(公告)日:2009-08-20

    申请号:US12389110

    申请日:2009-02-19

    IPC分类号: C07C17/00 C07C17/25

    摘要: A process for the production of fluorinated olefins, preferably fluorinated propenes, by contacting a feed stream containing a fluorinated olefin and hydrogen with a first amount of catalyst to produce the hydrofluorocarbon, wherein a first exit stream contains unreacted fluorinated olefin and hydrogen; contacting the first exit stream with a second amount of catalyst to produce a hydrofluorocarbon, wherein the second amount of catalyst is preferably greater than the first amount of catalyst; and contacting the hydrofluorocarbon with a catalyst for dehydrohalogenation to produce a product stream of fluorinated olefin.

    摘要翻译: 通过使包含氟化烯烃和氢气的进料流与第一量催化剂接触以产生氢氟烃来生产氟化烯烃,优选氟化丙烯的方法,其中第一出口流含有未反应的氟化烯烃和氢; 使第一出口流与第二量的催化剂接触以产生氢氟烃,其中第二量的催化剂优选大于第一量的催化剂; 并将氢氟烃与用于脱卤化氢的催化剂接触以产生氟化烯烃的产物流。

    Process for the manufacture of fluorinated alkanes
    8.
    发明授权
    Process for the manufacture of fluorinated alkanes 有权
    制造氟化烷烃的方法

    公开(公告)号:US08921623B2

    公开(公告)日:2014-12-30

    申请号:US13035239

    申请日:2011-02-25

    摘要: A process for the production of fluorinated alkanes by contacting a feed stream containing a fluorinated olefin and a reducing agent, preferably with a first amount of catalyst to produce a fluorinated alkane, at a first conversion level, wherein a first effluent stream contains unreacted fluorinated olefin and reducing agent; and contacting the first effluent stream under conditions effective to produce a higher level of conversion than said conversion level.

    摘要翻译: 通过使包含氟化烯烃和还原剂的进料流,优选与第一量的催化剂接触以产生氟化烷烃,以第一转化水平接触生产氟化烷烃的方法,其中第一流出物流含有未反应的氟化烯烃 和还原剂; 以及在有效地产生比所述转化水平更高水平的转化率的条件下接触第一流出物流。

    Low solids content, coal tar based impregnating pitch
    9.
    发明授权
    Low solids content, coal tar based impregnating pitch 失效
    低固体含量,煤焦油基浸渍沥青

    公开(公告)号:US4664774A

    公开(公告)日:1987-05-12

    申请号:US703252

    申请日:1985-02-20

    CPC分类号: C10C3/04

    摘要: A novel coal tar based, low solids content, pitch is produced by oxidizing a selected coal tar distillation fraction with air to oxygen at elevated temperatures. This pitch is applicable to end use in which low solids content is desirable. Specifically it may be advantageously applied to the impregnation of carbon electrodes. The oxidized selected coal tar based low solids material described is characterized by high carbon yield and higher product density and has a higher in situ coking value and lower sulfur content which make it particularly beneficial when it is used as an impregnating pitch as compared to the currently commercially used petroleum based pitch.

    摘要翻译: 通过在升高的温度下将选定的煤焦油蒸馏馏分与空气氧化成氧而产生新的基于煤焦油,固体含量低的沥青。 该间距适用于需要低固体含量的最终用途。 具体地,可以有利地应用于碳电极的浸渍。 所述的氧化选择的煤焦油基低固体物质的特征在于高碳产率和较高的产物密度,并且具有较高的原位焦化值和较低的硫含量,这使得当其与目前相比用作浸渍沥青时特别有利 商用石油沥青。