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22 条记录 (耗时 0.02 秒)

    Device for exchanging a die plate of a prilling tower and method for the automatic exchange
    4.
    发明授权
    Device for exchanging a die plate of a prilling tower and method for the automatic exchange 失效
    用于更换造粒塔的模板的装置和用于自动交换的方法

    公开(公告)号：US06695991B1

    公开(公告)日：2004-02-24

    申请号：US09890018

    申请日：2001-07-25

    申请人： Rolf Lanze ,  Günter Holdenried ,  Rainer Neumann ,  Frieder Heydenreich ,  Tony van Osselaer

    发明人： Rolf Lanze ,  Günter Holdenried ,  Rainer Neumann ,  Frieder Heydenreich ,  Tony van Osselaer

    IPC分类号： B29B910

    CPC分类号： C07C39/16

    摘要： A device for exchanging a die plate of a molten bisphenol A prilling tower is described. The device comprises: (a) at least two die plates; (b) a guide which is in contact with the die plates; and (c) a drive mechanism, wherein the drive mechanism moves the die plates linearly and serially between an operating position and an exchange position along the guide. Also described is a process of automated operation of the device at the top of a bisphenol A prilling tower.

    摘要翻译： 描述了用于更换熔融双酚A造粒塔的模板的装置。 该装置包括：（a）至少两个模板; （b）与模板接触的导向件; 和（c）驱动机构，其中所述驱动机构沿着所述导向件在操作位置和交换位置之间线性地并且连续地移动所述模具板。 还描述了在双酚A造粒塔的顶部自动操作装置的过程。

    Initiation method of a method for producing 2,2-bis(4-hydroxyphenyl)propane
    6.
    发明授权
    Initiation method of a method for producing 2,2-bis(4-hydroxyphenyl)propane 失效
    2,2-双（4-羟基苯基）丙烷的制备方法的起始方法

    公开(公告)号：US06590128B1

    公开(公告)日：2003-07-08

    申请号：US10148363

    申请日：2002-09-05

    申请人： Michael Bödiger ,  Rainer Neumann ,  Frieder Heydenreich ,  Michael Prein ,  Hans-Ludwig Fofonka

    发明人： Michael Bödiger ,  Rainer Neumann ,  Frieder Heydenreich ,  Michael Prein ,  Hans-Ludwig Fofonka

    IPC分类号： C07C3916

    CPC分类号： C07C37/20 ,  B01J31/10 ,  B01J2231/347 ,  Y02P20/52 ,  C07C39/16

    摘要： A process for the commissioning of a process for the production of 2,2-bis(4-hydroxyphenyl)propane is disclosed. The process that entails reacting phenol with acetone in the presence of sulfonated cross-linked polystyrene resins is characterized in that the commissioning takes place with an acetone concentration reduced below, and a phenol concentration increased above, that of the optimal sustained operation state, with a reduced quantitative throughput, and in that with temperature control, the reactant quantity and the acetone content of the reactor feed are subsequently increased until the sustained operating state is reached.

    摘要翻译： 公开了一种用于生产2,2-双（4-羟基苯基）丙烷的方法试验的方法。 在磺化交联聚苯乙烯树脂存在下使苯酚与丙酮反应的过程的特征在于，在丙酮浓度降低到低于苯酚浓度的情况下进行调试，苯酚浓度高于最佳持续运行状态， 减少定量通过量，并且随着温度控制，反应器进料的反应物量和丙酮含量随后增加，直到达到持续的操作状态。

    Process for preparing bis-(4-hydroxyaryl) alkanes
    8.
    发明授权
    Process for preparing bis-(4-hydroxyaryl) alkanes 失效
    制备双（4-羟基芳基）烷烃的方法

    公开(公告)号：US06211417B1

    公开(公告)日：2001-04-03

    申请号：US09341506

    申请日：1999-07-12

    申请人： Gerd Fengler ,  Hans-Josef Buysch ,  Frieder Heydenreich ,  Rob Eek ,  Gerhard Fennhoff

    发明人： Gerd Fengler ,  Hans-Josef Buysch ,  Frieder Heydenreich ,  Rob Eek ,  Gerhard Fennhoff

    IPC分类号： C07C3916

    CPC分类号： C07C37/20 ,  C07C39/16

    摘要： The present invention relates to a process for the production of bis-(4-hydroxyaryl)-alkanes by a heterogeneously catalyzed reaction of aromatic hydroxy compounds with ketones in at least two reactors connected in series, which, as the reaction progresses, are operated at higher temperatures, wherein the total quantity of ketone is divided between the individual reactors in such a manner that the higher is the temperature of the particular reactor, the smaller is the proportion per reactor, the highest possible reactor loading is maintained and the temperatures and temperature gradients are kept as low as possible.

    摘要翻译： 本发明涉及通过芳族羟基化合物与至少两个串联连接的反应器中的酮的不均匀催化反应生产双 - （4-羟基芳基） - 烷烃的方法，其随着反应进行而在 较高的温度，其中酮的总量在单个反应器之间分开，使得特定反应器的温度越高，每个反应器的比例越小，保持最高可能的反应器负载和温度和温度 梯度保持尽可能低。