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    • 61. 发明授权
    • Preparation of substituted butenes
    • 取代丁烯的制备
    • US06329555B1
    • 2001-12-11
    • US09432202
    • 1999-11-02
    • Maik AronRalf BöhlingPeter Zehner
    • Maik AronRalf BöhlingPeter Zehner
    • C07C4106
    • C07C41/06C07C45/513C07C47/02C07C43/046
    • Described is a process for preparing substituted butenes of the formula I and/or II, where the radical R is unsubstituted or mono- or di-C1-C10-alkoxy-substituted or mono- or dihydroxy-substituted C2-C20-alkyl or alkenyl or is C6-C10-aryl, C7-C11-aralkyl or methyl by reacting 1,3-butadiene with an alcohol of the formula ROH in which R is as defined in the presence of an acidic particulate catalyst insoluble in the reaction medium, which involves contacting the butadiene, the alcohol and the catalyst in a fluidized bed reactor which is flow-approached from below and is operated at above the loosening point.
    • 描述了制备式I和/或II的取代丁烯的方法,其中基团R是未取代的或单或二-C 1 -C 10 - 烷氧基取代的或单或二羟基取代的C 2 -C 20 - 烷基或烯基 或者是C 13 -C 10 - 芳基,C 7 -C 11 - 芳烷基或甲基,通过使1,3-丁二烯与式ROH的醇反应,其中R在不溶于反应介质的酸性颗粒催化剂存在下如上所定义,其中R 包括在流化床反应器中使丁二烯,醇和催化剂接触,流化床反应器从下方流动接近并在松动点之上操作。
    • 65. 发明授权
    • Manufacture of hydroxylammonium salts
    • 羟基铵盐的制造
    • US4192856A
    • 1980-03-11
    • US932636
    • 1978-08-10
    • Guenther RappErwin ThomasDieter WolfKuerten, HeribertPeter Zehner
    • Guenther RappErwin ThomasDieter WolfKuerten, HeribertPeter Zehner
    • B01J10/00B01J19/24B01J19/26B01J23/00C01B21/14
    • C01B21/1418B01J19/2465B01J19/26B01J2219/00103B01J2219/0011B01J2219/00777
    • Hydroxylammonium salts are manufactured by a process comprising the catalytic reduction of nitric oxide with hydrogen in a dilute aqueous solution of a mineral acid in the presence of a suspended platinum catalyst at an elevated temperature, wherein the reaction mixture is recycled and the gas mixture, containing nitric oxide and hydrogen, present in the gas space above the reaction zone, is introduced, by means of one or more downwardly directed jets of liquid, consisting of the recycled reaction mixture and issuing from a nozzle orifice, into one or more circulation zones which are present in the reaction zone, are open at both sides, extend in the direction of the entering jet of liquid and are completely covered by the reaction mixture, the reaction mixture leaving the bottom of the circulation zone and containing unconverted gases is deflected, passed upwards in the annular zone externally surrounding the circulation zone, and at the same time reaction mixture of low gas content is recycled from a separation zone located under the reaction zone.
    • 羟基铵盐通过包括在悬浮的铂催化剂的存在下在升高的温度下在无机酸的稀的水溶液中用氢催化还原一氧化氮的方法制备,其中反应混合物被再循环,并且含有 存在于反应区上方的气体空间中的一氧化氮和氢气通过一个或多个向下定向的液体喷射引入,由再循环的反应混合物组成并从喷嘴孔排出到一个或多个循环区 存在于反应区中,在两侧开放,沿着进入的液体射流的方向延伸并被反应混合物完全覆盖,离开循环区底部并含有未转化气体的反应混合物偏转,通过 向上在循环区域外部的环形区域中,同时反应混合低气体量i 从位于反应区下方的分离区回收。