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    Process for removing .alpha.-acetylenes from diolefins
    82.
    发明授权
    Process for removing .alpha.-acetylenes from diolefins 失效
    从二烯烃中除去α-乙炔的方法

    公开(公告)号：US4174355A

    公开(公告)日：1979-11-13

    申请号：US916641

    申请日：1978-06-19

    Applicant: Pradeep V. Patel ,  Donald E. Murphy

    Inventor： Pradeep V. Patel ,  Donald E. Murphy

    IPC: C07C7/148 ,  C07C7/00

    CPC classification number: C07C7/148

    Abstract: Conjugated diolefins contaminated with relatively high levels of acetylenic impurities in a hydrocarbon feedstream are purified by a cyclic, vapor phase, predominantly catalytic cracking process which selectively removes alpha-cetylenes in a single pass. A feedstream containing about equal weights of isoprene and mixed monoolefins and alkanes contaminated with alpha-acetylenes including isopropenyl acetylene inter alia, up to about 5.0 percent by weight (% by wt) of the feedstream, and a larger amount of cyclopentadiene, is contacted in the vapor phase with a supported Group I B metal oxide catalyst in the absence of hydrogen, at a temperature in the range from about 300.degree. F. to about 360.degree. F. In this narrow temperature range, the loss of diolefin is less than 1% by weight. Essentially all the cyclopentadiene (CPD) is left unconverted. Isopropenyl acetylene content of the effluent is generally less than about 25 ppm in the single pass process which is carried out in a fixed bed reactor operating at substantially atmospheric pressure. In an analogous process, from a crude butadiene feedstream containing less than about 1.0 percent by weight of vinyl acetylene and methyl acetylene, inter alia, a butadiene effluent is recovered having less than about 200 ppm alpha-acetylenes. The butadiene effluent, substantially free from poisons for a cis-polybutadiene polymerization catalyst, except CPD, if it is present in the feed, minimizes the loss of this catalyst and provides better yields.

    Abstract translation: 在烃进料流中被相当高水平的炔属杂质污染的共轭二烯烃通过环状汽相，主要是催化裂化方法进行纯化，该方法在单程中选择性地除去α-十六烷。 含有大约相等重量的异戊二烯和混合的单烯烃的链烷烃和被α-乙炔包被的α-烷烃（包括异丙烯基乙炔），特别是至多约5.0重量％（重量％）的进料流和更大量的环戊二烯所接触， 在不存在氢气的条件下，在约300°F至约360°F的温度范围内，将气相与负载的IB族金属氧化物催化剂反应。在该窄温度范围内，二烯烃的损失小于1％ 重量。 基本上所有的环戊二烯（CPD）都未转化。 流出物中的异丙烯基乙炔含量通常在单程过程中小于约25ppm，这在基本上大气压下运行的固定床反应器中进行。 在类似的方法中，从含有小于约1.0重量％的乙烯基乙炔和甲基乙炔的粗丁二烯进料流，尤其是回收具有小于约200ppmα-乙炔的丁二烯流出物。 对于顺式 - 聚丁二烯聚合催化剂，除了CPD以外，如果存在于进料中的丁二烯流出物使得该催化剂的损失最小化并提供更好的产率。

    Purification of unsaturated compounds
    85.
    发明授权
    Purification of unsaturated compounds 失效
    不饱和化合物的纯化

    公开(公告)号：US4044067A

    公开(公告)日：1977-08-23

    申请号：US627117

    申请日：1975-10-30

    Applicant: Alfio J. Besozzi ,  Alan W. Foster

    Inventor： Alfio J. Besozzi ,  Alan W. Foster

    IPC: C07C7/148 ,  C07C11/00 ,  C07C11/12 ,  C07C7/00 ,  C07C15/00

    CPC classification number: C07C11/00 ,  C07C7/148

    Abstract: Gaseous streams containing carbonyl compounds are reduced in carbonyl compounds by reacting a vapor phase with catalyst comprising as the major cation portion at least two metals of Periodic Table Groups 1b, 2b, 4b, 6b, 7b and 8. Reactor effluent from oxidative dehydrogenation reaction to produce butadiene-1,3 is reacted with iron oxide - copper chromite on AMC catalyst to remove carbonyl compounds.

    Abstract translation: 含有羰基化合物的气态物质通过使气相与包含作为主要阳离子部分的至少两种元素周期表组1b，2b，4b，6b，7b和8的金属的催化剂反应而还原。氧化脱氢反应的反应器流出物 在AMC催化剂上使丁二烯-1,3-与氧化铁 - 亚铬酸铜反应以除去羰基化合物。

    Vapor pressure-adjusted motor fuel alkylate of reduced fluoride content
    86.
    发明授权
    Vapor pressure-adjusted motor fuel alkylate of reduced fluoride content 失效
    蒸气压调节的汽油燃料烷基化物氟化物含量降低

    公开(公告)号：US4039603A

    公开(公告)日：1977-08-02

    申请号：US657675

    申请日：1976-02-12

    Applicant: Michael Z. Mikulicz ,  Vance P. Burton

    Inventor： Michael Z. Mikulicz ,  Vance P. Burton

    IPC: C10L1/00 ,  C07C1/00 ,  C07C2/62 ,  C07C7/148 ,  C07C9/16 ,  C07C67/00 ,  C10G29/20 ,  C10G50/00 ,  C10L1/16 ,  C07C3/54

    CPC classification number: C10G29/205 ,  C10G50/00

    Abstract: The reaction product effluent emanating from an isoparaffinic/olefinic, HF-alkylation reactor system, containing normal paraffins, motor fuel, alkylate, unreacted isoparaffins, hydrogen fluoride catalyst and organic fluoride compounds, is separated to recover a motor fuel alkylate product substantially free from fluoride compounds, and having a predetermined volatility, or vapor pressure. Two separation zones are employed to produce an alkylate containing hydrogen fluoride and a normal paraffin stream containing organic fluoride and hydrogen fluoride. Three treating zones afford the recovery of a fluoride-free motor fuel alkylate and a fluoride-free normal paraffin concentrate; a portion of the latter is blended with the former to adjust the volatility to the predetermined level.

    Abstract translation: 从含有正构烷烃，运动燃料，烷基化物，未反应的异构烷烃，氟化氢催化剂和有机氟化物的异链烷烃/烯烃，HF-烷基化反应器系统发出的反应产物流出物被分离以回收基本上不含氟化物的马达燃料烷基化产物 化合物，并且具有预定的挥发性或蒸气压。 使用两个分离区来生产含氟化氢的烷基化物和含有有机氟化物和氟化氢的正常石蜡流。 三个处理区提供无氟化物汽油烷基化物和无氟化物正常石蜡浓缩物的回收; 后者的一部分与前者混合以将挥发性调节到预定水平。

    Selective oxidation of acetylenes
    87.
    发明授权
    Selective oxidation of acetylenes 失效
    乙炔的选择性氧化

    公开(公告)号：US4035433A

    公开(公告)日：1977-07-12

    申请号：US704884

    申请日：1976-07-13

    Applicant: Lewis E. Drehman ,  Thomas Davis

    Inventor： Lewis E. Drehman ,  Thomas Davis

    IPC: C07C7/148 ,  C07C7/02

    CPC classification number: C07C7/14816

    Abstract: Acetylenic compounds are selectively removed from hydrocarbon mixtures containing same by oxidation in the presence of a copper chromite catalyst. In one embodiment, acetylenic compounds are selectively removed from streams containing C.sub.4 unsaturated hydrocarbons containing same by contacting oxygen and the stream with a catalyst of copper, chromium, and oxygen under oxidizing conditions.

    Abstract translation: 在亚铬酸铜催化剂的存在下，通过氧化从含有它们的烃混合物中选择性除去乙炔化合物。 在一个实施方案中，通过在氧化条件下使氧和所述物流与铜，铬和氧的催化剂接触，从含有其中含有C 4不饱和烃的流中选择性地除去炔属化合物。

    Method of producing cyclopentene
    88.
    发明授权
    Method of producing cyclopentene 失效
    生产环戊烯的方法

    公开(公告)号：US3994986A

    公开(公告)日：1976-11-30

    申请号：US567835

    申请日：1975-04-14

    Applicant: Yasushi Koto ,  Masakazu Uekita ,  Shoichi Matsumura ,  Yoshiaki Taguchi ,  Yutaka Takanoo

    Inventor： Yasushi Koto ,  Masakazu Uekita ,  Shoichi Matsumura ,  Yoshiaki Taguchi ,  Yutaka Takanoo

    IPC: C07C7/148 ,  B01J23/00 ,  C07B61/00 ,  C07C1/00 ,  C07C4/22 ,  C07C5/05 ,  C07C7/04 ,  C07C13/12 ,  C07C67/00 ,  C07C3/00

    CPC classification number: C07C13/12 ,  C07C4/22 ,  C07C5/05 ,  C07C7/04 ,  C07C2101/10 ,  C07C2521/04 ,  C07C2521/08 ,  C07C2521/10 ,  C07C2523/26 ,  C07C2523/44 ,  C07C2523/745

    Abstract: A method of producing cyclopentene comprising the steps of depolymerizing dicyclopentadiene to produce raw cyclopentadiene; feeding the raw cyclopentadiene to a distillation tower having an upper part cooled to a temperature near the boiling point of the cyclopentadiene and an outlet maintained at 35.degree. to 60.degree. C and a lower part at a temperature of 40.degree. to 150.degree. C; thereby to produce highly pure gaseous cyclopentadiene at the top outlet and impure components having high boiling point at the lower outlet which are removed continuously; mixing the highly pure cyclopentadiene obtained thereby with hydrogen and reacting in a first hydrogenation reactor using a palladium containing catalyst, then mixing the resulting product with hydrogen and reacting in a second hydrogenation reactor with a palladium containing catalyst; cooling the resulting product and separating the liquid phase from the gas phase and recirculating the gas phase for use in the hydrogenation reactions.

    Abstract translation: 一种生产环戊烯的方法，包括使二环戊二烯解聚以产生生的环戊二烯的步骤; 将原料环戊二烯加入到具有冷却至接近环戊二烯沸点的温度的上部的蒸馏塔和保持在35℃至60℃的出口和在40℃至150℃的温度下部的蒸馏塔; 从而在顶部出口处产生高纯度的气态环戊二烯，并且在下部出口处具有高沸点的不纯的组分被连续除去; 将由此获得的高纯度环戊二烯与氢气混合，并在第一氢化反应器中使用含钯催化剂进行反应，然后将所得产物与氢气混合，并在第二氢化反应器中与含钯催化剂反应; 冷却所得产物并将液相与气相分离并再循环气相以用于氢化反应。

    Removal of {60 -acetylenes from gas streams
    90.
    发明授权
    Removal of {60 -acetylenes from gas streams 失效
    从气流中除去{60-乙炔

    公开(公告)号：US3897511A

    公开(公告)日：1975-07-29

    申请号：US41545773

    申请日：1973-11-12

    Applicant: DOW CHEMICAL CO

    Inventor： FREVEL LUDO K ,  KRESSLEY LEONARD J

    IPC: B01J23/72 ,  B01J23/74 ,  B01J23/86 ,  B01J23/885 ,  C07C7/148 ,  C07C11/02

    CPC classification number: C07C7/148 ,  B01J23/72 ,  B01J23/74 ,  B01J23/868 ,  B01J23/885 ,  Y02P20/52 ,  Y02P20/584 ,  C07C11/04 ,  C07C11/167

    Abstract: Lower alpha-alkynes such as acetylene, methylacetylene, vinylacetylene, and ethylacetylene are effectively removed from hydrocarbon and other gas streams by contacting the contaminated gas with a finely divided metal catalyst consisting of copper plus at least one polyvalent activator metal supported on a high surface area gamma-alumina containing a defined amount of Na2O. The catalyst is easily regenerated by oxidation and hydrogen reduction at moderately elevated temperatures.

    Abstract translation: 通过使被污染的气体与由铜加上至少一种多价活化剂金属的微细分散的金属催化剂接触而被高效地除去，例如乙炔，甲基乙炔，乙烯基乙炔和乙基乙炔等低级α-炔烃， 含有规定量的Na 2 O的γ-氧化铝。 催化剂通过在适度升高的温度下的氧化和氢还原容易地再生。

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