Process for producing cycloolefin
    31.
    发明授权
    Process for producing cycloolefin 失效
    环烯生产工艺

    公开(公告)号:US5973218A

    公开(公告)日:1999-10-26

    申请号:US100949

    申请日:1998-06-22

    摘要: A process for producing a cycloolefin by partial hydrogenation of a monocyclic aromatic hydrocarbon with hydrogen in the presence of a ruthenium catalyst, water and a metal sulfate, wherein the hydrogenation is conducted while changing the concentration of the metal sulfate dissolved in an aqueous phase in which the catalyst is present.

    摘要翻译: 一种在钌催化剂,水和金属硫酸盐存在下,用氢气将单环芳烃部分氢化制备环烯烃的方法,其中氢化是在改变溶于水相中的金属硫酸盐的浓度的同时进行的, 催化剂存在。

    Hydrocarbon processing using fullerene catalysts
    34.
    发明授权
    Hydrocarbon processing using fullerene catalysts 失效
    使用富勒烯催化剂的烃加工

    公开(公告)号:US5336828A

    公开(公告)日:1994-08-09

    申请号:US25502

    申请日:1993-03-03

    摘要: A process is described for carrying out the dehydrogenation or hydrogenation, including hydrogenolysis, of a hydrocarbon in the presence of one or more soluble fullerene catalysts which have been dissolved in the hydrocarbon (when the hydrocarbon is a liquid capable of dissolving the fullerene catalyst) or dissolved in a solvent which is also a solvent for the hydrocarbon (when the hydrocarbon either is not a liquid or is not a liquid which is a solvent for the fullerene catalyst). The use of a liquid catalyst, i.e., a dissolved fullerene catalyst, inhibits coking reactions to thereby inhibit formation of coke on a solid catalyst or catalyst support by elimination of nucleation points or growth regions for such coke formation.

    摘要翻译: 描述了一种在已经溶解在烃中的一种或多种可溶性富勒烯催化剂存在下(当烃是能够溶解富勒烯催化剂的液体)的情况下进行烃的脱氢或氢化(包括氢解)的方法或 溶解在溶剂中,该溶剂也是烃的溶剂(当烃不是液体或不是作为富勒烯催化剂的溶剂的液体时)。 使用液体催化剂,即溶解的富勒烯催化剂,抑制焦化反应,从而通过消除这种焦炭形成的成核点或生长区域来抑制在固体催化剂或催化剂载体上形成焦炭。

    Test for catalyst activity
    36.
    发明授权
    Test for catalyst activity 失效
    催化剂活性测试

    公开(公告)号:US5059539A

    公开(公告)日:1991-10-22

    申请号:US390898

    申请日:1989-08-08

    IPC分类号: C07C5/10 C07C5/11 G01N31/10

    摘要: A method is provided for testing the activity of a catalyst for a chemical reaction in which naphthalene is reversibly hydrogenated by gaseous hydrogen into tetralin, which avoids the need to pressurize a test vessel with hydrogen, enables simple apparatus to be used and gives good accuracy. Tetralin and catalyst are introduced into a sealed container, the container is heated to a reaction temperature for a predetermined time, and the amount of naphthalene formed by dehydrogenation is determined. The method is applicable to the measurement of catalyst activity for catalysts used in the production by hydrogenation of coal-derived liquids.

    Anthracene production from phenanthrene
    37.
    发明授权
    Anthracene production from phenanthrene 失效
    蒽从菲生产

    公开(公告)号:US4384152A

    公开(公告)日:1983-05-17

    申请号:US218000

    申请日:1980-12-18

    摘要: A method for production of anthracene from phenanthrene is disclosed. Phenanthrene is hydrogenated at a nickel on a carrier catalyst at temperatures from about 140.degree. C. to 170.degree. C. under a pressure of from about 10 to 30 bar by gradual addition of hydrogen. The hydrogenation product is separated by distillation into sym.-octahydrophenanthrene and asym.-octahydrophenanthrene. The sym.-octahydrophenanthrene is isomerized in the presence of methylene chloride as a solvent and of aluminum chloride as a catalyst at a temperature from about -30.degree. to +5.degree. C. to sym.-octahydroanthracene. The sym.-octahydroanthracene is dehydrogenated at a chromium oxide-aluminum oxide catalyst at temperatures from about 450.degree. to 550.degree. C. to anthracene.The resulting anthracene is obtained with high yield and is very pure after a single recrystallization step.

    摘要翻译: 公开了一种从菲生产蒽的方法。 在约140〜170℃的温度下,在约10〜30巴的压力下,通过逐渐加入氢将菲在载体催化剂上的镍氢化。 通过蒸馏将氢化产物分离成对 - 八氢菲和非 - 八氢菲。 在二氯甲烷作为溶剂和氯化铝作为催化剂的存在下,在约-30℃至+5℃的温度下将对 - 八氢菲异构化为对映 - 八氢蒽。 在约450-550℃的温度下,氧化铬 - 氧化铝催化剂将蒽 - 八氢蒽脱氢。 得到的蒽以高产率获得,并且在单次再结晶步骤后是非常纯的。

    Method for the preparation of cyclohexanol and/or cyclohexanone
    38.
    发明授权
    Method for the preparation of cyclohexanol and/or cyclohexanone 失效
    制备环己醇和/或环己酮的方法

    公开(公告)号:US4339604A

    公开(公告)日:1982-07-13

    申请号:US202145

    申请日:1980-10-30

    摘要: An improved method for the preparation of cyclohexanol and/or cyclohexanone from benzene. Cyclohexanol and/or cyclohexanone is prepared by the steps of hydrogenating benzene to form a hydrogenation reaction mixture containing cyclohexene, unreacted benzene, and by-product cyclohexane, hydrating cyclohexene thus obtained to form a hydration reaction mixture containing cyclohexanol, unreacted benzene and by-product cyclohexane and/or oxidating this cyclohexene to form an oxidation reaction mixture containing cyclohexanone, unreacted benzene and by-product cyclohexane, recovering from said hydration reaction mixture the cyclohexanol product and/or from said oxidation reaction mixture the cyclohexanone product, and an organic phase containing unreacted benzene and by-product cyclohexane, and recycling unconverted benzene to the benzene hydrogenation step. The improvement comprises introducing the organic phase containing unreacted benzene and by-product cyclohexane into a dehydrogenation zone wherein by-product cyclohexane is dehydrogenated to benzene and recycled to the hydrogenation step together with the unreacted benzene.

    摘要翻译: 一种从苯制备环己醇和/或环己酮的改进方法。 通过以下步骤制备环己醇和/或环己酮:使氢化苯形成含有环己烯,未反应苯和副产物环己烷的氢化反应混合物,由此得到环己烯,从而形成含有环己醇,未反应苯和副产物的水合反应混合物 环己烷和/或氧化该环己烯以形成含有环己酮,未反应苯和副产物环己烷的氧化反应混合物,从所述水合反应混合物中回收环己醇产物和/或从所述氧化反应混合物回收环己酮产物和含有 未反应的苯和副产物环己烷,并将未转化的苯循环到苯氢化步骤。 改进之处在于将含有未反应苯和副产物环己烷的有机相引入脱氢区,其中副产物环己烷脱氢为苯并与未反应苯一起再循环至氢化步骤。