利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

56 条记录 (耗时 0.019 秒)

    Process for the preparation of N-alkylated anilines
    1.
    发明授权
    Process for the preparation of N-alkylated anilines 失效
    N-烷基化苯胺的制备方法

    公开(公告)号：US5055617A

    公开(公告)日：1991-10-08

    申请号：US552277

    申请日：1990-07-12

    申请人： Peter Wimmer ,  Hans-Josef Buysch ,  Lothar Puppe ,  Christian Froehlich

    发明人： Peter Wimmer ,  Hans-Josef Buysch ,  Lothar Puppe ,  Christian Froehlich

    IPC分类号： C07C209/18 ,  C07C211/48

    CPC分类号： C07C209/18

    摘要： Anilines or N-alkyl-anilines are advantageously reacted with alkyl alcohols or the associated dialkyl ethers at elevated temperature in the gas phase, if a .gamma.-Al.sub.2 O.sub.3 is used that is prepared by dehydration of an aluminum oxide/hydroxide hydrate and has a BET surface area from 50 to 400 m.sup.2 /g and a surface acidity of 5 to 600 mmol H.sup.+ /kg.

    摘要翻译： 如果使用通过氧化铝/氢氧化物水合物的脱水制备并具有BET表面的γ-Al 2 O 3，则苯胺或N-烷基苯胺有利地在气相中在升高的温度下与烷基醇或相关联的二烷基醚反应 面积为50〜400m2 / g，表面酸度为5〜600mmol H + / kg。

    Process for the preparation of oligophenyls dihalogenated in the 4,4'-position
    4.
    发明授权
    Process for the preparation of oligophenyls dihalogenated in the 4,4'-position 失效
    制备4,4'-位二卤代低聚苯基的方法

    公开(公告)号：US5053566A

    公开(公告)日：1991-10-01

    申请号：US571956

    申请日：1990-08-23

    申请人： Artur Botta ,  Hans-Josef Buysch ,  Lothar Puppe

    发明人： Artur Botta ,  Hans-Josef Buysch ,  Lothar Puppe

    IPC分类号： C07C41/22 ,  B01J29/50 ,  B01J29/60 ,  B01J29/70 ,  C07B61/00 ,  C07C17/12 ,  C07C25/18 ,  C07C41/38 ,  C07C43/225

    CPC分类号： C07C17/12

    摘要： Oligophenyls dihalogenated in the 4,4'-position, of the formula ##STR1## can be prepared by catalyzed halogenation of oligophenyls of the formula ##STR2## wherein, in the formulae, X.sup.1 and X.sup.2 independently of one another represent chlorine or bromine, preferably chlorine,X.sup.3 denotes hydrogen, chlorine or bromine, preferably hydrogen or chlorine and particularly preferably hydrogen,R.sup.1, R.sup.2 and R.sup.3 independently of one another represent hydrogen, C.sub.1 -C.sub.4 -alkyl (preferably methyl or ethyl and particularly preferably methyl), C.sub.1 -C.sub.4 -alkoxy (preferably methoxy or ethoxy and particularly preferably methoxy), fluorine, chlorine or bromine anda assumes the value zero or one,with halogenating agents, the preparation being carried out in the presence of methylene chloride or solvent mixtures essentially containing methylene chloride and in the presence of zeolites of the L structure type which contain metal cations.

    摘要翻译： 在式（Ⅰ）的4,4'-位上二卤代的低级苯基可以通过式（II）的低聚苯基的催化卤化来制备，其中在式中X1和X2彼此独立地 代表氯或溴，优选氯，X3表示氢，氯或溴，优选氢或氯，特别优选氢，R 1，R 2和R 3彼此独立地表示氢，C 1 -C 4烷基（优选甲基或乙基，特别优选 甲基），C1-C4-烷氧基（优选甲氧基或乙氧基，特别优选甲氧基），氟，氯或溴，并且与卤化剂呈现零或一个值，该制剂在二氯甲烷或溶剂存在下进行 基本上含有二氯甲烷的混合物和在含有金属阳离子的L结构类型的沸石的存在下。

    Process for separating aniline derivatives
    7.
    发明授权
    Process for separating aniline derivatives 失效
    苯胺衍生物分离方法

    公开(公告)号：US4918232A

    公开(公告)日：1990-04-17

    申请号：US213069

    申请日：1988-06-29

    申请人： Hans-Josef Buysch ,  Michael Hullmann ,  Lothar Puppe

    发明人： Hans-Josef Buysch ,  Michael Hullmann ,  Lothar Puppe

    IPC分类号： C07C209/86 ,  C07C67/00 ,  C07C209/00 ,  C07C211/46

    CPC分类号： C07C209/86

    摘要： A process for separating from each other aniline and aniline derivatives having different numbers of C atoms bound to the N atoms is disclosed herein, this process being characterized in that a mixture of the substances mentioned is treated in liquid phase with zeolites of the faujasite type at a temperature from 0.degree. C. to 190.degree. C.

    摘要翻译： 本文公开了一种彼此分离的苯胺和与N原子结合的C原子数不同的苯胺衍生物的方法，该方法的特征在于所述物质的混合物用八面沸石沸石沸石处理 温度为0℃至190℃

    Process for separating mixtures of m- and p-dichlorobenzene
    8.
    发明授权
    Process for separating mixtures of m- and p-dichlorobenzene 失效
    分离对 - 二氯苯混合物的方法

    公开(公告)号：US5386067A

    公开(公告)日：1995-01-31

    申请号：US252154

    申请日：1994-06-01

    申请人： Ursula Pentling ,  Hans-Josef Buysch ,  Lothar Puppe ,  Kai Rohlk ,  Rolf Grosser ,  Hans-Ingolf Paul

    发明人： Ursula Pentling ,  Hans-Josef Buysch ,  Lothar Puppe ,  Kai Rohlk ,  Rolf Grosser ,  Hans-Ingolf Paul

    IPC分类号： B01D15/00 ,  B01D15/04 ,  C07C17/38 ,  C07C17/389 ,  C07C25/08

    CPC分类号： C07C17/389

    摘要： Mixtures of m- and p-dichlorobenzene can be separated by treating such mixtures in the liquid phase with a pentasil zeolite at from 20.degree. to 250.degree. C., a filtrate enriched in m-dichlorobenzene being removed and the p-dichlorobenzene being obtained by desorption of the pentasil zeolite. The pentasil zeolites may contain, as exchangeable cations, protons, cations of the first or second main group of the Mendeleev Periodic System, cations of the rare earth metals or a mixture of a plurality thereof. In order to prepare the liquid phase a solvent is used that belongs to the group of cyclic saturated hydrocarbons having 5 to 15 carbon atoms, alkyl-substituted aromatic hydrocarbons having 8 to 12 carbon atoms, and halogen-substituted aromatic hydrocarbons having 6 to 10 carbon atoms and 1 to 3 halogen atoms. The solvents ethylbenzene, chlorobenzene, p-xylene, p-chlorotoluene and dichlorobenzene are excepted. A mixture of a plurality of these solvents may also be used.

    摘要翻译： 可以通过在20至250℃下用pentasil沸石处理液相中的这种混合物来分离对 - 二氯苯的混合物，除去富含间二氯苯的滤液，将对二氯苯由 五硅沸石的解吸。 戊二烯沸石可以包含作为可交换阳离子的质子，门多列夫周期系统的第一或第二主要组分的阳离子，稀土金属的阳离子或其多个混合物。 为了制备液相，使用属于具有5至15个碳原子的环状饱和烃基团，具有8至12个碳原子的烷基取代的芳族烃和具有6至10个碳原子的卤素取代的芳族烃的溶剂 原子和1至3个卤素原子。 溶剂乙苯，氯苯，对二甲苯，对氯甲苯和二氯苯除外。 也可以使用多种这些溶剂的混合物。