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81 条记录 (耗时 0.029 秒)

    Procedure for alkylation of imides
    51.
    发明授权
    Procedure for alkylation of imides 失效
    酰亚胺烷基化方法

    公开(公告)号：US5780645A

    公开(公告)日：1998-07-14

    申请号：US775800

    申请日：1996-12-31

    申请人： Marcello Notari ,  Franco Mizia ,  Franco Rivetti

    发明人： Marcello Notari ,  Franco Mizia ,  Franco Rivetti

    IPC分类号： C07D205/10 ,  C07B61/00 ,  C07D207/40 ,  C07D207/404 ,  C07D209/48 ,  C07D471/06 ,  C07D487/06

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

    摘要： A process for the alkylation of imides wherein the imides are reacted with a dialkyl carbonate, in the liquid state, at a temperature of between 100.degree. C. and 250.degree. 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： 用于烷基化酰亚胺的方法，其中所述酰亚胺与碳酸二烷基酯在液态下在100℃至250℃的温度和0至60个大气压的压力下在存在下进行反应 一个基本的催化剂。 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。

    Process for producing dimethyl carbonate
    52.
    发明授权
    Process for producing dimethyl carbonate 失效
    生产二甲基碳酸酯的方法

    公开(公告)号：US5210269A

    公开(公告)日：1993-05-11

    申请号：US709583

    申请日：1991-06-03

    申请人： Nicola Di Muzio ,  Carlo Fusi ,  Franco Rivetti ,  Giacomo Sasselli

    发明人： Nicola Di Muzio ,  Carlo Fusi ,  Franco Rivetti ,  Giacomo Sasselli

    IPC分类号： B01J27/122 ,  C07B61/00 ,  C07C68/00 ,  C07C69/96

    CPC分类号： C07C68/005

    摘要： Dimethyl carbonate is prepared by means of a continuous process:* by feeding, to a reaction chamber, methanol, carbon monoxide and oxygen, to a liquid reaction mixture with substantially constant composition and volume, containing methanol, dimethyl carbonate, water, and a copper catalyst;* vaporizing from the reaction mixture a stream of methanol, water and dimethyl carbonate, which is developed together with the carbonmonoxide-containing gas stream; and* recovering water and dimethyl carbonate from said vaporized mixture, in amounts substantially equal to the respective amounts thereof which are formed in the reaction chamber and recycling the other components.The process, which is essentially characterized in that in the liquid reaction mixture a methanol concentration and a water concentration are maintained which are respectively equal to, or higher than, 30% by weight, and equal to, or lower than, 10% by weight, makes it possible dimethyl carbonate to be obtained with an improved productivity.

    Process for the preparation of 1-octene
    56.
    发明授权
    Process for the preparation of 1-octene 有权
    1-辛烯的制备方法

    公开(公告)号：US07368622B2

    公开(公告)日：2008-05-06

    申请号：US10576144

    申请日：2004-10-11

    申请人： Daniele Delledonne ,  Franco Rivetti

    发明人： Daniele Delledonne ,  Franco Rivetti

    IPC分类号： C07C2/04 ,  C07C5/05

    CPC分类号： C07C5/05 ,  A23P20/20 ,  A61K9/006 ,  C07C2/406 ,  C07C2531/22 ,  C07C2531/24 ,  Y02P20/582

    摘要： Process in two steps for the preparation of 1-octene starting from butadiene which comprises: a first step (a) in which the bis-hydrodimerization of butadiene to 1,7-octadiene is effected in the presence of a catalyst based on a palladium complex containing one or more tri-substituted monodentate phosphines, in an aprotic polar solvent optionally containing an organic base; a second step (b) in which the partial catalytic hydrogenation of 1,7-octadiene to 1-octene is effected, the above process being characterized in that: (i) in the first step the aprotic polar solvent is selected from disubstituted cyclic ureas; (ii) in the second step the catalyst is selected from non supported ruthenium complexes having general formula (II): RuXmLn (II).

    摘要翻译： 从丁二烯开始制备1-辛烯的两步法，其包括：第一步骤（a），其中丁二烯至1,7-辛二烯的双加氢二聚在催化剂存在下进行，所述催化剂基于钯络合物 含有一种或多种三取代的单齿膦，任选地含有有机碱的非质子极性溶剂; 其中进行1,7-辛二烯部分催化氢化至1-辛烯的第二步（b），上述方法的特征在于：（i）在第一步中，非质子极性溶剂选自二取代的环脲 ; （ii）在第二步中，催化剂选自具有通式（II）的非负载钌络合物：RuX m L（II）。

    Process for the preparation of 1-octene
    57.
    发明申请
    Process for the preparation of 1-octene 有权
    1-辛烯的制备方法

    公开(公告)号：US20070129585A1

    公开(公告)日：2007-06-07

    申请号：US10576144

    申请日：2004-10-11

    申请人： Daniele Delledonne ,  Franco Rivetti

    发明人： Daniele Delledonne ,  Franco Rivetti

    IPC分类号： C07C2/00 ,  C07C4/00

    CPC分类号： C07C5/05 ,  A23P20/20 ,  A61K9/006 ,  C07C2/406 ,  C07C2531/22 ,  C07C2531/24 ,  Y02P20/582

    摘要： Process in two steps for the preparation of 1-octene starting from butadiene which comprises: a first step (a) in which the bis-hydrodimerization of butadiene to 1,7-octadiene is effected in the presence of a catalyst based on a palladium complex containing one or more tri-substituted monodentate phosphines, in an aprotic polar solvent optionally containing an organic base; a second step (b) in which the partial catalytic hydrogenation of 1,7-octadiene to 1-octene is effected, the above process being characterized in that: (i) in the first step the aprotic polar solvent is selected from disubstituted cyclic ureas; (ii) in the second step the catalyst is selected from non supported ruthenium complexes having general formula (II): RuXmLn (II).

    摘要翻译： 从丁二烯开始制备1-辛烯的方法分为两步，其包括：第一步（a），其中丁二烯至1,7-辛二烯的双加氢二聚在催化剂存在下进行，所述催化剂基于钯络合物 含有一种或多种三取代的单齿膦，任选地含有有机碱的非质子极性溶剂; 其中进行1,7-辛二烯部分催化氢化至1-辛烯的第二步（b），上述方法的特征在于：（i）在第一步中，非质子极性溶剂选自二取代的环脲 ; （ii）在第二步中，催化剂选自具有通式（II）的非负载钌络合物：RuX m L（II）。

    Process for the regeneration of zeolitic catalysts containing titanium
    59.
    发明授权
    Process for the regeneration of zeolitic catalysts containing titanium 有权
    含钛的沸石催化剂再生方法

    公开(公告)号：US06403514B1

    公开(公告)日：2002-06-11

    申请号：US09690732

    申请日：2000-10-18

    申请人： Maria Angela Mantegazza ,  Luigi Balducci ,  Franco Rivetti

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

    IPC分类号： B01J2034

    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耗尽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。 所述方法在于在无机氟化物的存在下，在热处理耗尽的催化剂之后，在含水介质中用过氧化氢进行处理。

    Process for the preparation of polycarbonate diols with a high molecular weight
    60.
    发明授权
    Process for the preparation of polycarbonate diols with a high molecular weight 失效
    制备高分子量聚碳酸酯二醇的方法

    公开(公告)号：US06384178B2

    公开(公告)日：2002-05-07

    申请号：US09797593

    申请日：2001-03-05

    申请人： Franco Mizia ,  Franco Rivetti

    发明人： Franco Mizia ,  Franco Rivetti

    IPC分类号： C08G6400

    CPC分类号： C08G64/305

    摘要： A process is described for the preparation of polycarbonate dials (PCD) with a high molecular weight comprising two subsequent reaction steps, wherein in the first step PCD with a molecular weight ranging from 500 to 2000, is synthesized and in the second step the molecular weight of the PCD is increased to the desired value. Polycarbonate diols are usefully applied in the field of thermoelastomeric polyurethane manufactured products, paints, adhesives and synthetic leather.

    摘要翻译： 描述了制备具有高分子量的聚碳酸酯表盘（PCD）的方法，其包括两个随后的反应步骤，其中在第一步中合成分子量为500至2000的PCD，在第二步中分子量 的PCD增加到所需的值。 聚碳酸酯二醇可用于热弹性聚氨酯制造产品，油漆，粘合剂和合成革领域。