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9 条记录 (耗时 0.018 秒)

    Preparation of butane-1,4-diol
    1.
    发明授权
    Preparation of butane-1,4-diol 失效
    丁烷-1,4-二醇的制备

    公开(公告)号：US4361710A

    公开(公告)日：1982-11-30

    申请号：US347580

    申请日：1982-02-10

    申请人： Hans-Martin Weitz ,  Rolf Schnabel ,  Rolf Platz

    发明人： Hans-Martin Weitz ,  Rolf Schnabel ,  Rolf Platz

    IPC分类号： C07C29/136 ,  B01J23/00 ,  B01J23/72 ,  B01J23/76 ,  C07B61/00 ,  C07C27/00 ,  C07C29/132 ,  C07C29/149 ,  C07C29/17 ,  C07C31/20 ,  C07C67/00 ,  C07C69/60

    CPC分类号： C07C29/177

    摘要： A process for the preparation of butane-1,4-diol by catalytic hydrogenation of a mixture obtained by treating maleic anhydride with an aliphatic alcohol at elevated temperatures, wherein a monohydric or dihydric aliphatic alcohol of boiling point above 180.degree. C. is used and the mixture of maleic acid and the alcohol is obtained by washing a gaseous reaction mixture, which contains maleic anhydride and is obtained in the catalytic oxidation of hydrocarbons by air, with the alcohol.

    摘要翻译： 通过催化氢化制备丁烷-1,4-二醇的方法，其通过在高温下用脂族醇处理马来酸酐得到的混合物，其中使用沸点高于180℃的一元或二元脂族醇， 马来酸和醇的混合物通过洗涤含有马来酸酐的气态反应混合物而获得，并且通过空气与醇催化氧化烃获得。

    Preparation of butane-1,4-diol
    2.
    发明授权
    Preparation of butane-1,4-diol 失效
    丁烷-1,4-二醇的制备

    公开(公告)号：US4594462A

    公开(公告)日：1986-06-10

    申请号：US748998

    申请日：1985-06-26

    申请人： Rolf Schnabel ,  Hans-Martin Weitz

    发明人： Rolf Schnabel ,  Hans-Martin Weitz

    IPC分类号： C07C29/136 ,  B01J23/00 ,  B01J23/72 ,  C07B61/00 ,  C07C27/00 ,  C07C29/149 ,  C07C31/20 ,  C07C67/00

    CPC分类号： C07C29/149

    摘要： Butane-1,4-diol is prepared by catalytic hydrogenation of dibutyl succinate by a process in which hydrogenation is terminated before complete conversion is reached, butanol is distilled off from the reaction mixture, the liquid distillation residue is cooled to below 108.degree. C., the upper phase, which is formed as a result of phase separation and essentially consists of dibutyl succinate, is recycled to the hydrogenation, and the butane-1,4-diol is obtained from the lower phase, which essentially consists of this compound, by fractional distillation under reduced pressure.

    摘要翻译： 丁烷-1,4-二醇通过二丁基琥珀酸二丁酯的催化氢化制备，其中在完成转化之前终止氢化的方法，从反应混合物中蒸馏出丁醇，将液体蒸馏残余物冷却至低于108℃。 作为相分离结果而形成的上层，由琥珀酸二丁酯基本上由二丁基琥珀酸酯组成，再循环到氢化中，丁烷-1,4-二醇由下层得到，该相基本上由该化合物组成， 通过减压下的分馏。

    Preparation of a catalyst containing copper and silica
    5.
    发明授权
    Preparation of a catalyst containing copper and silica 失效
    制备含铜和二氧化硅的催化剂

    公开(公告)号：US4780448A

    公开(公告)日：1988-10-25

    申请号：US14072

    申请日：1987-01-30

    申请人： Franz J. Broecker ,  Rolf Fischer ,  Klaus-Dieter Malsch ,  Wolfgang Reiss ,  Rolf Schnabel ,  Hans-Martin Weitz

    发明人： Franz J. Broecker ,  Rolf Fischer ,  Klaus-Dieter Malsch ,  Wolfgang Reiss ,  Rolf Schnabel ,  Hans-Martin Weitz

    IPC分类号： C07C29/136 ,  B01J23/72 ,  C07B61/00 ,  C07C27/00 ,  C07C29/149 ,  C07C31/20 ,  C07C67/00 ,  B01J21/08 ,  B01J21/18

    CPC分类号： B01J23/72 ,  C07C29/149

    摘要： A catalyst containing copper and silica is prepared by a process in which an aqueous alkali metal silicate solution containing from 1 to 26% by weight of SiO.sub.2 is brought to a pH of from 0.5 to 2.0 with nitric acid, an aqueous copper nitrate solution containing from 5 to 15% by weight of Cu is added, after the addition of the nitric acid, so that a clear solution containing from 0.18 to 3.0 moles of Cu per mole of SiO.sub.2 is formed, the resulting solution is mixed with an aqueous alkali metal carbonate solution at from 40.degree. to 80.degree. C., the pH of the mixture being kept at from 7.5 to 8.5, and the precipitated material is separated off, dried, calcined by heating at from 250.degree. to 400.degree. C. and pressed in a conventional manner to give catalyst moldings. The catalyst thus obtained is used for the hydrogenation of dialkyl dicarboxylates to diols.

    摘要翻译： 含有铜和二氧化硅的催化剂是通过一种方法制备的，其中含有1至26重量％的SiO 2的碱金属硅酸盐水溶液用硝酸使其pH为0.5至2.0，硝酸铜水溶液含有 加入5〜15重量％的Cu后，加入硝酸后，形成每摩尔SiO 2含有0.18〜3.0摩尔Cu的透明溶液，得到的溶液与碱金属碳酸盐水溶液 溶液在40〜80℃下，将混合物的pH值保持在7.5〜8.5，析出的物质分离出来，干燥，在250〜400℃下加热煅烧， 常规方式提供催化剂模塑。 由此获得的催化剂用于将二羧酸二烷基酯氢化成二醇。

    Working up cyclohexyl hydroperoxide containing reaction mixtures
    7.
    发明授权
    Working up cyclohexyl hydroperoxide containing reaction mixtures 失效
    加工含环己基氢过氧化物的反应混合物

    公开(公告)号：US4814511A

    公开(公告)日：1989-03-21

    申请号：US111605

    申请日：1987-10-23

    申请人： Gerald Neubauer ,  Rolf Schnabel ,  Juergen Hartig ,  Josef Ritz

    发明人： Gerald Neubauer ,  Rolf Schnabel ,  Juergen Hartig ,  Josef Ritz

    IPC分类号： C07C27/00 ,  B01J21/06 ,  B01J23/16 ,  B01J23/44 ,  C07B61/00 ,  C07C29/132 ,  C07C29/88 ,  C07C35/08 ,  C07C45/00 ,  C07C45/33 ,  C07C45/53 ,  C07C49/403 ,  C07C67/00

    CPC分类号： C07C45/33 ,  C07C29/132 ,  C07C29/88 ,  C07C45/53 ,  C07C2101/14

    摘要： Cyclohexyl hydroperoxide containing reaction mixtures obtained by oxidation of cyclohexane with molecular oxygen or molecular oxygen containing gases in the liquid phase at from 130.degree. to 200.degree. C. and under from 5 to 125 bar are worked up by reaction with cycloolefins at elevated temperature in the presence of catalysts to react cyclohexyl hydroperoxide with cyclohexene at elevated temperatures in the presence of cyclohexene-soluble compounds of transition metals of groups 4 or 5 or 6 of the periodic table or of one or more cyclohexane-insoluble compounds of a transition metal of group 4 or 5 or 6, or in the presence of selenium, tellurium or a boride, and the resulting cyclohexene oxide at elevated temperatures to cyclohexanol in the presence of hydrogenation catalysts.

    摘要翻译： 通过在130〜200℃，5〜125巴下的液相中用分子氧或分子氧气体氧化环己烷得到的含环己基氢过氧化物的反应混合物通过与环烯烃在高温下 存在催化剂以使环己基氢过氧化物与环己烯在升高的温度下在周期表第4或5或6族的过渡金属的环己烯可溶性化合物的存在下或一种或多种环己烷不溶性的第4族过渡金属的化合物 或5或6，或在硒，碲或硼化物的存在下，将得到的环己烯氧化物在升高的温度下在氢化催化剂存在下进行。

    Continuous separation of maleic anhydride from gaseous reaction mixtures
    9.
    发明授权
    Continuous separation of maleic anhydride from gaseous reaction mixtures 失效
    从气态反应混合物中连续分离马来酸酐

    公开(公告)号：US4562283A

    公开(公告)日：1985-12-31

    申请号：US681593

    申请日：1984-12-14

    申请人： Rolf Schnabel ,  Hans M. Weitz

    发明人： Rolf Schnabel ,  Hans M. Weitz

    IPC分类号： C07D307/60 ,  C07C51/573 ,  C07C67/08

    CPC分类号： C07C51/573

    摘要： Maleic anhydride is separated off from gaseous reaction mixtures by a continuous process in which the gaseous reaction mixture containing the maleic anhydride is brought into contact with butanol, the gaseous substances obtained in this procedure are brought into contact with butyl maleate by a countercurrent method, and the liquid product is removed from the bottom.

    摘要翻译： 马来酸酐通过连续方法从气态反应混合物中分离，其中使含有马来酸酐的气态反应混合物与丁醇接触，通过逆流法将本方法中获得的气态物质与马来酸丁酯接触， 液体产品从底部移除。