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    Hydrated niobium oxide and hydrated tantalum oxide catalysts, their preparation and a process for preparing N-alkylated anilines using these catalysts
    12.
    发明授权
    Hydrated niobium oxide and hydrated tantalum oxide catalysts, their preparation and a process for preparing N-alkylated anilines using these catalysts 失效
    水合铌氧化物和水合氧化钽催化剂，它们的制备和使用这些催化剂制备N-烷基化苯胺的方法

    公开(公告)号：US5593936A

    公开(公告)日：1997-01-14

    申请号：US410466

    申请日：1995-03-24

    申请人： Volker Glock ,  Ursula Pentling ,  Bernd Pennemann ,  Joerg-Dietrich Jentsch ,  Eberhard Zirngiebl ,  Horst Koller

    发明人： Volker Glock ,  Ursula Pentling ,  Bernd Pennemann ,  Joerg-Dietrich Jentsch ,  Eberhard Zirngiebl ,  Horst Koller

    IPC分类号： B01J23/20 ,  B01J35/10 ,  C07C209/18 ,  C07C211/48

    CPC分类号： B01J23/20 ,  B01J35/108 ,  C07C209/18

    摘要： New hydrated niobium oxide and hydrated tantalum oxide catalysts containing pores having diameters in the range from 0.4 to 10,000 nm are characterized in that the volume of the pores of the catalyst having a diameter of from 100 to 1000 nm is at least 30% of the total pore volume of the catalyst. The catalysts can be prepared by mixing hydrated niobium oxide or hydrated tantalum oxide with an inert solid and converting this mixture into a solid pellet form, with the pressure in the apparatus for preparing catalysts in pellet form being set in such a way that the volume of the pores of the catalyst having a diameter of from 100 to 1000 nm is at least 30% of the total pore volume of the catalyst. Such catalysts are particularly suitable for preparing N-alkylanilines from anilines and alkanols.

    摘要翻译： 新型水合铌氧化物和含有直径在0.4至10,000nm范围内的孔的水合氧化钽催化剂的特征在于直径为100至1000nm的催化剂的孔的体积至少为总量的30％ 催化剂的孔体积。 催化剂可以通过将水合铌氧化物或水合氧化钽与惰性固体混合并将该混合物转化为固体颗粒形式来制备，其中用于制备颗粒形式的催化剂的装置中的压力设定为使得 直径为100〜1000nm的催化剂的孔隙为催化剂总孔体积的至少30％。 这种催化剂特别适用于从苯胺和链烷醇制备N-烷基苯胺。

    PROCESS FOR THE PREPARATION OF TOLUENE-DIISOCYANATE
    14.
    发明申请
    PROCESS FOR THE PREPARATION OF TOLUENE-DIISOCYANATE 失效
    过氧化二异氰酸酯的制备方法

    公开(公告)号：US20110021811A1

    公开(公告)日：2011-01-27

    申请号：US12894290

    申请日：2010-09-30

    申请人： Wolfgang Lorenz ,  Lars Padeken ,  Bernd Pennemann ,  Friedhelm Steffens ,  Lothar Weismantel

    发明人： Wolfgang Lorenz ,  Lars Padeken ,  Bernd Pennemann ,  Friedhelm Steffens ,  Lothar Weismantel

    IPC分类号： C07C263/10

    CPC分类号： C07C263/10 ,  C07C209/62 ,  C07C265/14 ,  C07C211/51

    摘要： The present invention relates to a process for the preparation of toluene-diisocyanate. In this process, toluenediamine is reacted with phosgene to give crude toluene-diisocyanate, the crude toluene-diisocyanate is purified by distillation, the distillation residue formed during the distillation is hydrolysed at temperatures of less than 230° C. under absolute pressures of less than 30 bar, and the toluenediamine formed by this process is subsequently recycled into the reaction of toluenediamine and phosgene.

    摘要翻译： 本发明涉及一种制备甲苯二异氰酸酯的方法。 在该方法中，甲苯二胺与光气反应得到粗甲苯二异氰酸酯，通过蒸馏纯化粗甲苯二异氰酸酯，蒸馏期间形成的蒸馏残余物在小于230℃的温度下在绝对压力小于 30巴，通过该方法形成的甲苯二胺随后再循环到甲苯二胺和光气的反应中。

    Process for the production of dinitrotoluene
    15.
    发明授权
    Process for the production of dinitrotoluene 失效
    生产二硝基甲苯的方法

    公开(公告)号：US07495136B2

    公开(公告)日：2009-02-24

    申请号：US11827502

    申请日：2007-07-12

    申请人： Fritz Pohl ,  Wolfgang Lorenz ,  Juergen Muennig ,  Bernd Pennemann ,  Gerhard Wiechers

    发明人： Fritz Pohl ,  Wolfgang Lorenz ,  Juergen Muennig ,  Bernd Pennemann ,  Gerhard Wiechers

    IPC分类号： C07C205/00

    CPC分类号： C07C201/08 ,  C07C205/06

    摘要： Dinitrotoluene is produced by nitration of toluene with nitrating acid (mixture of nitric acid and sulfuric acid) in which, in a first stage, the toluene is converted to mononitrotoluene (MNT) and then the mononitrotoluene is converted in a second stage to dinitrotoluene (DNT). Control of the weight ratio of the aqueous to organic phases, dispersion of the organic phase in the aqueous phase and use of less than 2.06 moles of nitric acid per mole of toluene are key features of this process.

    摘要翻译： 二硝基甲苯通过用硝酸（硝酸和硫酸的混合物）硝化甲苯来制备，其中在第一阶段将甲苯转化为一硝基甲苯（MNT），然后将一硝基甲苯转化为二硝基甲苯（DNT ）。 控制水相与有机相的重量比，有机相在水相中的分散和每摩尔甲苯使用小于2.06摩尔硝酸是该方法的关键特征。

    Process for the preparation of aromatic amines
    16.
    发明申请
    Process for the preparation of aromatic amines 有权
    芳香胺的制备方法

    公开(公告)号：US20080179176A1

    公开(公告)日：2008-07-31

    申请号：US12001829

    申请日：2007-12-13

    申请人： Bernd Pennemann ,  Bill Brady ,  Rainer Buse

    发明人： Bernd Pennemann ,  Bill Brady ,  Rainer Buse

    IPC分类号： C02F1/04

    CPC分类号： C07C209/36 ,  Y02P20/124 ,  Y10S203/08 ,  Y10S203/11 ,  Y10S203/20 ,  C07C211/50

    摘要： Aromatic amines are produced by catalytic hydrogenation of aromatic nitro compounds. The reaction mixture generated by this hydrogenation is then worked up by distillation in a manner which makes it possible to substantially free the amine of water with increased energy efficiency. Water free of amine and low boilers and the low boiling materials are also obtained.

    摘要翻译： 芳族胺通过芳族硝基化合物的催化氢化产生。 通过该氢化产生的反应混合物然后通过蒸馏来处理，使得可以以增加的能量效率基本上释放水的胺。 也可获得不含胺和低沸点的水和低沸点物质。

    Process for the preparation of toluene-diisocyanate
    17.
    发明申请
    Process for the preparation of toluene-diisocyanate 审中-公开
    制备甲苯二异氰酸酯的方法

    公开(公告)号：US20080146835A1

    公开(公告)日：2008-06-19

    申请号：US12001905

    申请日：2007-12-13

    申请人： Wolfgang Lorenz ,  Lars Padeken ,  Bernd Pennemann ,  Friedhelm Steffens ,  Lothar Weismantel

    发明人： Wolfgang Lorenz ,  Lars Padeken ,  Bernd Pennemann ,  Friedhelm Steffens ,  Lothar Weismantel

    IPC分类号： C07C263/10

    CPC分类号： C07C263/10 ,  C07C209/62 ,  C07C265/14 ,  C07C211/51

    摘要： The present invention relates to a process for the preparation of toluene-diisocyanate. In this process, toluenediamine is reacted with phosgene to give crude toluene-diisocyanate, the crude toluene-diisocyanate is purified by distillation, the distillation residue formed during the distillation is hydrolysed at temperatures of less than 230° C. under absolute pressures of less than 30 bar, and the toluenediamine formed by this process is subsequently recycled into the reaction of toluenediamine and phosgene.

    摘要翻译： 本发明涉及一种制备甲苯二异氰酸酯的方法。 在该方法中，甲苯二胺与光气反应得到粗甲苯二异氰酸酯，通过蒸馏纯化粗甲苯二异氰酸酯，蒸馏期间形成的蒸馏残余物在小于230℃的温度下在绝对压力小于 30巴，通过该方法形成的甲苯二胺随后再循环到甲苯二胺和光气的反应中。