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31 条记录 (耗时 0.014 秒)

    Procedure for alkylation of imides
    21.
    发明公开
    Procedure for alkylation of imides 失效
    Verfahren zur Alkylierung von Imiden

    公开(公告)号：EP0785189A1

    公开(公告)日：1997-07-23

    申请号：EP96120574.7

    申请日：1996-12-20

    申请人： ENICHEM S.p.A.

    发明人： Notari, Marcello ,  Mizia, Franco ,  Rivetti, Franco

    IPC分类号： C07D209/48 ,  C07D207/404

    CPC分类号： C07D207/408 ,  C07D209/48 ,  C07D471/06

    摘要： A procedure is described for the alkylation of imides that is characterised by the fact that the imides are reacted with a dialkyl carbonate, in the liquid state, at a temperature of between 100°C and 250°C and at a pressure of between 0 and 60 atmospheres in the presence of a basic catalyst.
    The dialkyl carbonate reagents are not very toxic and are thermally stable and their use as alkylation agents makes it possible to produce waste products with a negligible saline content.

    摘要翻译： 描述了用于酰亚胺烷基化的方法，其特征在于将酰亚胺与碳酸二烷基酯在液态下在100-250℃的温度和0至 60个大气压的碱性催化剂存在下。 碳酸二烷基酯试剂不是非常有毒的并且是热稳定的，并且它们作为烷基化剂的使用使得可以生产具有可忽略的盐水含量的废物。

    Method for removing acidic and salt impurities from the condensed phase from the reaction effluent in a process for dimethyl carbonate synthesis
    26.
    发明公开
    Method for removing acidic and salt impurities from the condensed phase from the reaction effluent in a process for dimethyl carbonate synthesis 失效
    一种用于从Reaktoraustrager的液化阶段的过程中去除酸性和盐杂质为碳酸二甲酯的合成过程。

    公开(公告)号：EP0685453A1

    公开(公告)日：1995-12-06

    申请号：EP95201393.6

    申请日：1995-05-27

    申请人： ENICHEM S.p.A.

    发明人： Rivetti, Franco ,  Delledonne, Daniele

    IPC分类号： C07C68/08 ,  C07C69/96

    CPC分类号： C07C68/08 ,  C07C68/005 ,  Y10S159/10 ,  Y10S203/90 ,  C07C69/96

    摘要： Method for removing acidic and salt impurities from the condensed phase from the reaction effluent in a process for dimethyl carbonate synthesis, which method consists in submitting said phase to partial evaporation.
    From said partial evaporation a main vapour stream which is substantially free from said impurities, and a secondary, liquid stream which contains them, are obtained.

    摘要翻译： 在碳酸二甲酯的合成，酸性和盐杂质通过局部evapn ..冷凝相在蒸发器哪汽化80-99（90-97）％（重量）的相进料至从该反应流出物的冷凝相除去。 Evapn。 在1-3条腹肌。 和65-100℃下冷凝的相可以与酸性离子交换树脂进行预处理。 之前被送到DISTN。 部分，蒸发的流接触以蒸汽相，用（改性的）的Al2O3固定床或活化的C，或被冷凝并与胺或季铵化合物的碱性大孔聚苯乙烯树脂接触。 铵GPS ..蒸发器底部的残余物循环至合成，选择。 被发送到到用尽塔回收有机组分并浓缩剩余水溶液后的HCl SOLN ..

    Process for the regeneration of zeolitic catalysts containing titanium
    29.
    发明公开
    Process for the regeneration of zeolitic catalysts containing titanium 有权
    Verfahrenfürdie Regenerierung von zeoliteithemhem Titanium enthaltende Katalysatoren

    公开(公告)号：EP1093853A1

    公开(公告)日：2001-04-25

    申请号：EP00203586.3

    申请日：2000-10-16

    申请人： Enichem S.p.A.

    发明人： Mantegazza, Maria Angela ,  Balducci, Luigi ,  Rivetti, Franco

    IPC分类号： B01J38/70 ,  B01J29/90 ,  B01J29/04

    CPC分类号： B01J29/90 ,  B01J29/89

    摘要： A process is described for regenerating exhausted zeolitic catalysts containing titanium and deriving from oxidation processes of organic substrates with hydrogen peroxide. Said process consists in carrying out a treatment in an aqueous medium with hydrogen peroxide in the presence of inorganic fluorinated compounds, subsequent to thermal treatment of the exhausted catalyst.

    摘要翻译： 描述了一种用于再生含有钛的排出的沸石催化剂并由有机底物氧化过程产生的过氧化氢的方法。 所述方法包括在无机氟化合物存在下，在用过氧化氢存在下，在水性介质中进行处理，然后进行热处理。