利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

8 条记录 (耗时 0.013 秒)

    Continuous process for the synthesis of unsymmetrical, substituted diphenylamines
    1.
    发明公开
    Continuous process for the synthesis of unsymmetrical, substituted diphenylamines 失效
    Kontinueierliches Verfahren zur Herstellung von unsymmetrischen，substitutionierten Diphenylaminen。

    公开(公告)号：EP0139444A1

    公开(公告)日：1985-05-02

    申请号：EP84306087.2

    申请日：1984-09-06

    申请人： XEROX CORPORATION

    发明人： Szabo, Paul ,  Freeman, Daniel ,  Wright, Joseph D. ,  Martin, Trevor I. ,  Jutan, Arthur

    IPC分类号： C07C85/06 ,  C07C87/50

    CPC分类号： C07C209/18

    摘要： A continuous process for the synthesis of unsymmetrical, substituted diarylamines in which a mixture of a soluble catalyst dissolved in a substituted phenol and a primary arylamine are reacted at an elevated temperature and pressure in a reactor to form a reaction mixture comprising a substituted, unsymmetrical diamine, a diphenylamine, catalyst, unreacted primary arylamine, unreacted substituted phenol, water and ammonia, which is flash separated in a flash separator to a vapor phase containing the unreacted primary arylamine, unreacted substituted phenol, water and ammonia components while substituted, unsymmetrical diamine and diphenylamine components are maintained in a liquid phase. The vapor phase is removed from the flash separator, subjected to reduced pressure, cooled and fed into a second flash separator where the water and ammonia components are flash separated to vapor phase while the unreacted primary arylamine and unreacted substituted phenol are maintained in the liquid phase. The unreacted primary arylamine and unreacted substituted phenol are then removed from the second flash evaporator and recycled in the continuous process.

    摘要翻译： 用于合成不对称取代的二芳基胺的连续方法，其中溶解在取代的苯酚和伯芳基胺中的可溶性催化剂的混合物在升高的温度和压力下在反应器中反应以形成包含取代的不对称二胺的反应混合物 ，二苯胺，催化剂，未反应的伯芳基胺，未反应的取代的酚，水和氨，其在快速分离器中闪蒸分离成含有未反应的伯芳基胺，未反应的取代的苯酚，水和氨组分的气相，而取代的，不对称的二胺和 二苯胺组分保持在液相中。 将蒸气相从闪蒸分离器中除去，进行减压，冷却并进料到第二快速分离器中，其中水和氨组分被闪蒸分离成气相，而未反应的伯芳基胺和未反应的取代的苯保持在液相中 。 然后从第二闪蒸器中除去未反应的伯芳基胺和未反应的取代的苯酚，并在连续方法中再循环。

    Process for producing a diiodinated polyarylidene compound
    2.
    发明公开
    Process for producing a diiodinated polyarylidene compound 失效
    Verfahren zur Herstellung einer dijodierten Polyaryliden-Verbindung。

    公开(公告)号：EP0028888A1

    公开(公告)日：1981-05-20

    申请号：EP80303734.0

    申请日：1980-10-22

    申请人： XEROX CORPORATION

    发明人： Martin, Trevor I. ,  Szabo, Paul ,  Turner, Sam Richard

    IPC分类号： C07C25/18 ,  C07C25/22 ,  C07C17/12

    CPC分类号： C07C17/12 ,  C07C25/18

    摘要： A polyarylidene compound, for example biphenyl, is reacted with iodine in the presence of an oxidant (e.g. ammonium persulfate), unreactive with the aromatic muc- leus, in a reaction medium containing a solvent (e.g. an organic acid) for the polyarylidene compound, a catalyst (e.g. a mineral acid) and water. The reaction medium is recovered for reuse in repeat diiodination, by the removal of spent oxidant which, in the preferred embodiment, is based upon the temperature dependent differences in solubility between the diiodo derivative and the spent oxidant.

    摘要翻译： 在含有聚芳基化合物的溶剂（例如有机酸）的反应介质中，多芳基化合物，例如联苯，与碘反应，其中所述氧化剂（例如过硫酸铵）与芳族核不反应，催化剂（ 例如无机酸）和水。 通过去除废氧化剂，回收重复使用的反应介质，在优选的实施方案中，废氧化剂基于二碘衍生物和废氧化剂之间的温度依赖性差异。

    Method for producing unsymmetrical diphenylamines
    4.
    发明公开
    Method for producing unsymmetrical diphenylamines 失效
    Verfahren zur Herstellung不对称剂二苯胺。

    公开(公告)号：EP0027004A1

    公开(公告)日：1981-04-15

    申请号：EP80303344.8

    申请日：1980-09-24

    申请人： XEROX CORPORATION

    发明人： Szabo, Paul ,  Martin, Trevor I. ,  Freeman, Daniel E. ,  Lennon, John M.

    IPC分类号： C07C85/06 ,  C07C87/54

    CPC分类号： C07C209/18

    摘要： There is disclosed a process for the production of unsymmetrical, substituted diarylamines by the reaction of a primary aromatic amine and a substituted phenol wherein the phenol is held in excess of the primary aromatic amine thereby minimizing by-product formation as a result of self-condensation of the primary arylamine. The desired secondary amine is produced in high yield and purity by recycling the unreated phenol.

    摘要翻译： 公开了通过伯芳基胺和取代苯酚的反应制备不对称取代的二芳基胺的方法，其中苯酚保持超过伯芳族胺，从而使作为自缩合的结果的副产物形成最小化 的主芳基胺。 所需的仲胺通过再循环未反应的苯酚而以高产率和纯度生产。