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    Process for producing a monoalkenyl aromatic hydrocarbon compound
    5.
    发明授权
    Process for producing a monoalkenyl aromatic hydrocarbon compound 失效
    单链烯基芳烃化合物的制造方法

    公开(公告)号：US5659097A

    公开(公告)日：1997-08-19

    申请号：US371301

    申请日：1995-01-11

    申请人： Norio Fushimi ,  Makoto Takagawa

    发明人： Norio Fushimi ,  Makoto Takagawa

    IPC分类号： B01J23/04 ,  B01J31/00 ,  B01J31/02 ,  C07C2/72 ,  C07C15/40 ,  C07C15/46 ,  C07C5/09

    CPC分类号： C07C15/40 ,  B01J23/04 ,  B01J31/00 ,  C07C2/72 ,  C07C2521/04 ,  C07C2521/06 ,  C07C2521/18 ,  C07C2523/02 ,  C07C2523/04 ,  C07C2527/167 ,  C07C2527/232

    摘要： A process for producing a monoalkenyl aromatic hydrocarbon which comprises alkenylating a side chain of an aromatic hydrocarbon compound having at least one hydrogen atom at the .alpha.-position of a side chain (such as o-xylene) with a conjugated diene having 4 or 5 carbon atoms in the presence of a catalyst slurry prepared by adding an aromatic hydrocarbon compound to a catalyst comprising a alkali metal and an alkali metal compound. In the aforementioned process, it is particularly effective that the catalyst slurry is prepared by adding the aromatic hydrocarbon compound after the aromatic hydrocarbon compound has been deoxygenated and dehydrated by distillation, and the catalyst slurry thus prepared is supplied to the reaction system. According to the aforementioned process, an industrially useful monoalkenyl aromatic hydrocarbon compound, such as a monoalkenylbenzene, can be produced at a high selectivity, in a high yield, and with enhanced safety and stability for a long time.

    摘要翻译： 一种单链烯基芳族烃的制造方法，其包括在侧链（例如邻二甲苯）的α-位上具有至少一个氢原子的芳族烃化合物的侧链与具有4或5个碳原子的共轭二烯链烯基化 在通过将芳族烃化合物加入到包含碱金属和碱金属化合物的催化剂中制备的催化剂浆料存在下进行。 在上述方法中，特别有效的是，通过在芳烃化合物已经脱氧并通过蒸馏脱水之后，通过加入芳族烃化合物制备催化剂浆料，并将由此制备的催化剂浆料供应到反应体系。 根据上述方法，工业上可用的单链烯基芳烃化合物如单烯基苯可以高选择性，高产率，长时间提高安全性和稳定性而制备。

    Method of preparing an improved dehydrogenation catalyst
    7.
    发明授权
    Method of preparing an improved dehydrogenation catalyst 失效
    制备改进的脱氢催化剂的方法

    公开(公告)号：US3849339A

    公开(公告)日：1974-11-19

    申请号：US28891572

    申请日：1972-09-14

    申请人： DOW CHEMICAL CO

    发明人： TURLEY R ,  CASTOR W ,  NUNNALLY K

    IPC分类号： B01J23/86 ,  B01J37/00 ,  C07C5/333 ,  B01J11/22

    CPC分类号： C07C5/3332 ,  B01J23/86 ,  B01J23/862 ,  B01J37/0009 ,  B01J37/0018 ,  Y10S585/906 ,  C07C15/40 ,  C07C15/46

    摘要： 1. IN A PROCESS FOR PREPARING A CATALYST FOR THE DEHYDROGENATION OF ALKYL AROMATIC HYDROCARBONS TO VINYL AROMATIC HYDROCARBONS BY PREPARING A PASTE CONSISTING ESSENTIALLY OF FE2O3, CR2O3 OR AN ALKALI METAL CHROMATE OR DICHROMATE DECOMPOSIBLE TO CR2O3, AN ALKALI METAL OXIDE OR AN ALKALI METAL SALT DECOMPOSIBLE TO AN ALKALI METAL OXIDE, A BINDER AND SUFFICIENT WATER TO FORM SAID PASTE, FORMING SAID PASTE INTO PELLETS AND CALCINING SAID PELLETS INTO A FINISHED CATALYST, THE IMPROVEMENT WHICH COMPRISES EMPLOYING AS THE FE2O3 COMPONENT A MIXTURE OF HYDRATED FE2O3 AND ANHYDROUS FE2O3 WHEREIN THE HYDRATED FE2O3 IS PRESENT IN THE RANGE OF FROM ABOUT 79 PERCENT TO ABOUT 95 PERCENT OF THE TOTAL WEIGHT OF IRON OXIDES PRESENT.

    Catalytically dehydrogenating alkylated aromatic hydrocarbons
    9.
    发明授权
    Catalytically dehydrogenating alkylated aromatic hydrocarbons 失效
    催化脱氢芳烃芳烃

    公开(公告)号：US3660510A

    公开(公告)日：1972-05-02

    申请号：US3660510D

    申请日：1970-03-30

    申请人： BASF AG

    发明人： KINDLER HUBERT ,  SINGLE WINFRIED

    IPC分类号： C07C1/00 ,  C07C5/333 ,  C07C15/44 ,  C07C67/00 ,  C07C15/10

    CPC分类号： C07C5/333 ,  C07C5/3332 ,  C07C15/40

    摘要： METHOD OF CATALYTICALLY DEHYDROGENATING AN ALKYLATED AROMATIC HYDROCARBON HAVING AT LEAST TWO CARBON ATOMS IN A SIDE-CHAIN TO A VINYLAROMATIC HYDROCARBON BY RAPIDLY PASSING THROUGH A CATALYST ZONE A FEEDSTOCK WHICH HAS BEEN HEATED TO THE REACTION TEMPERATURE AND HAS BEEN OBTAINED BY MIXING A PREHEATED MIXTURE CONTAINING THE ALKYLATED AROMATIC HYDROCARBON AND OPTIONALLY STEAM AND OPTIONALLY THE VINYLAROMATIC HYDROCARBON WITH STEAM HEATED TO A TEMPERATURE ABOVE THE TEMPERATURE OF REACTION. THE PREHEATED MIXTURE HAS A TEMPERATURE OF FROM 400* TO 620* C. AND THE STEAM HEATED TO ABOVE THE REACTION TEMPERATURE HAS A TEMPERATURE OF FROM 820* TO 1,100* C. AND THE RESULTING FEEDSTOCK HAS A BLEND TEMPERATURE OF FROM 550* TO 700* C., THE TIME TAKEN FOR MIXING THE PREHEATED MIXTURE WITH THE HEATED STEAM BEING LESS THAN 0.1 SECOND WHILE THE RESIDENCE TIME OF THE RESULTING FEEDSTOCK BETWEEN THE MIXING POINT AND THE POINT OF ENTRY INTO THE CATALYST ZONE IS LESS THAN 0.2 SECOND. THE PRODUCTS ARE IMPORTANT MONOMERS AND COMONOMERS.