利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

11 条记录 (耗时 0.011 秒)

    Hydrogen cyanide process and apparatus therefor
    2.
    发明授权
    Hydrogen cyanide process and apparatus therefor 失效
    氰化氰工艺及其设备

    公开(公告)号：US06491876B2

    公开(公告)日：2002-12-10

    申请号：US09029536

    申请日：1998-12-21

    申请人： Christopher Cowell ,  Ralph Doy

    发明人： Christopher Cowell ,  Ralph Doy

    IPC分类号： C01C302

    CPC分类号： C01C3/0225 ,  B01J8/0285 ,  B01J19/002 ,  B01J19/2425 ,  B01J2219/00081 ,  B01J2219/00159 ,  C01C3/0212

    摘要： A catalytic process and apparatus therefor for the manufacture of hydrogen cyanide. In the process an oxygen rich oxidant stream and at least one oxidant-free feed stream containing methane and ammonia are separately preheated and rapidly mixed to form a detonable mixed stream at a temperature which is at least 50° C. below the autoignition temperature of the mixed stream. The mixed stream is then conveyed to a catalyst capable of catalyzing the formation of hydrogen cyanide at such a velocity that detonation is avoided. The process is more energy efficient and gives rise to an effluent stream containing more hydrogen than the conventional Andrussow process.

    摘要翻译： 用于制造氰化氢的催化方法及其设备。 在此过程中，含氧气体氧化剂流和至少一种不含氧化剂的进料流分别被预热并快速混合，形成可爆炸的混合流，温度低于低于自燃温度 混合流。 然后将混合物流以能够催化形成氰化氢的催化剂以避免爆炸的速度被输送。 该方法更节能，并且产生比常规安德鲁斯方法含有更多氢的流出物流。

    Ammoxidation of a mixture of ketones to acetonitrile and HCN
    3.
    发明授权
    Ammoxidation of a mixture of ketones to acetonitrile and HCN 失效
    酮与乙腈和HCN的混合物的氨氧化

    公开(公告)号：US06413485B2

    公开(公告)日：2002-07-02

    申请号：US09320937

    申请日：1999-05-27

    申请人： Michael J. Seely ,  Sanjay Purushottam Godbole ,  Dev Dhanaraj Suresh

    发明人： Michael J. Seely ,  Sanjay Purushottam Godbole ,  Dev Dhanaraj Suresh

    IPC分类号： C01C302

    CPC分类号： C07C253/26 ,  C01C3/0212 ,  C01C3/0225 ,  C07C253/24 ,  Y02P20/52 ,  C07C255/08

    摘要： A process increasing the yield of both HCN and acetonitrile produced during the manufacture of acrylonitrile comprising introducing a hydrocarbon selected from the group consisting of propylene and propane, a crude ketone and/or a mixture of at least two ketones, ammonia and air, into a reaction zone containing an ammoxidation catalyst, reacting the hydrocarbon, the ketone, ammonia and oxygen over said catalyst at an elevated temperature to produce acrylonitrile, hydrogen cyanide and acetonitrile, and recovering the acrylonitrile, hydrogen cyanide and acetonitrile from the reactor.

    摘要翻译： 包括将选自丙烯和丙烷，粗酮和/或至少两种酮，氨和空气的混合物的烃引入到丙烯和丙烯的制备过程中产生的HCN和乙腈的产率的方法， 含有氨氧化催化剂的反应区，在升高的温度下使所述催化剂上的烃，酮，氨和氧反应生成丙烯腈，氰化氢和乙腈，并从反应器回收丙烯腈，氰化氢和乙腈。

    Ammoxidation of a mixture of ketones to acetonitrile and HCN
    4.
    发明授权
    Ammoxidation of a mixture of ketones to acetonitrile and HCN 失效
    酮与乙腈和HCN的混合物的氨氧化

    公开(公告)号：US06667020B2

    公开(公告)日：2003-12-23

    申请号：US10016703

    申请日：2001-12-10

    申请人： Michael J. Seely ,  Sanjay Purushottam Godbole ,  Dev Dhanaraj Suresh

    发明人： Michael J. Seely ,  Sanjay Purushottam Godbole ,  Dev Dhanaraj Suresh

    IPC分类号： C01C302

    CPC分类号： C07C253/26 ,  C01C3/0212 ,  C01C3/0225 ,  C07C253/24 ,  Y02P20/52 ,  C07C255/08

    摘要： A process increasing the yield of both HCN and acetonitrile produced during the manufacture of acrylonitrile comprising introducing a hydrocarbon selected from the group consisting of propylene and propane, a crude ketone and/or a mixture of at least two ketones, ammonia and air, into a reaction zone containing an ammoxidation catalyst, reacting the. hydrocarbon, the ketone, ammonia and oxygen over said catalyst at an elevated temperature to produce acrylonitrile, hydrogen cyanide and acetonitrile, and recovering the acrylonitrile, hydrogen cyanide and acetonitrile from the reactor.

    摘要翻译： 包括将选自丙烯和丙烷，粗酮和/或至少两种酮，氨和空气的混合物的烃引入到丙烯和丙烯的制备过程中产生的HCN和乙腈的产率的方法， 反应区含有氨氧化催化剂， 碳氢化合物，酮，氨和氧在所述催化剂上升高以产生丙烯腈，氰化氢和乙腈，并从反应器回收丙烯腈，氰化氢和乙腈。

    Carbon nitrogen nanofiber compositions of specific morphology, and method for their preparation
    6.
    发明授权
    Carbon nitrogen nanofiber compositions of specific morphology, and method for their preparation 失效
    特定形态的碳氮纳米纤维组合物及其制备方法

    公开(公告)号：US06706248B2

    公开(公告)日：2004-03-16

    申请号：US09810049

    申请日：2001-03-19

    申请人： David Ernest Rodrigues

    发明人： David Ernest Rodrigues

    IPC分类号： C01C302

    CPC分类号： B82Y30/00 ,  D01F9/127 ,  Y10S977/843 ,  Y10T428/2918

    摘要： Carbon-nitrogen nanofibers are prepared by contacting a gaseous mixture comprising hydrogen and a carbon-nitrogen compound such as pyridine with a cobalt-iron catalyst at a temperature in the range of about 500-1000° C. The nanofibers are characterized by a structure in which layers emanate from a core catalyst particle and are parallel to each other but not parallel to the length axis of the nanofibers.

    摘要翻译： 通过在约500-1000℃的温度范围内使包含氢和碳 - 氮化合物如吡啶的气体混合物与钴 - 铁催化剂接触来制备碳氮纳米纤维。纳米纤维的特征在于结构为 这些层从核心催化剂颗粒发散并且彼此平行但不平行于纳米纤维的长度轴。

    Hydrogen cyanide synthesis process
    7.
    发明授权
    Hydrogen cyanide synthesis process 失效
    氰化氢合成工艺

    公开(公告)号：US06596251B2

    公开(公告)日：2003-07-22

    申请号：US09903776

    申请日：2001-07-13

    申请人： Thomas Schaefer ,  Thomas Krauss

    发明人： Thomas Schaefer ,  Thomas Krauss

    IPC分类号： C01C302

    CPC分类号： C01C3/0212

    摘要： A process for the synthesis of hydrogen cyanide by the Andrussow process by reaction of methane or methane-containing natural gas, ammonia and oxygen or oxygen-enriched air on a catalyst at an elevated temperature, wherein O 2 O 2 + N 2 = 0.25 - 1.0 ⁢   ⁢ ( vol / vol ) .

    摘要翻译： 一种通过在高温下通过甲烷或含甲烷的天然气，氨和氧气或富氧空气在催化剂上反应来通过Andrussow方法合成氰化氢的方法，其中

    Hydrogen cyanide synthesis process
    9.
    发明授权
    Hydrogen cyanide synthesis process 失效
    氰化氢合成工艺

    公开(公告)号：US06743407B2

    公开(公告)日：2004-06-01

    申请号：US09903777

    申请日：2001-07-13

    申请人： Thomas Schaefer ,  Hermann Siegert

    发明人： Thomas Schaefer ,  Hermann Siegert

    IPC分类号： C01C302

    CPC分类号： C01C3/0212

    摘要： A process for the production of hydrogen cyanide is provided, wherein hydrogen cyanide is synthesized by reacting methane or methane-containing natural gas, ammonia and oxygen-enriched air or oxygen in the presence of a catalyst comprising platinum or a platinum alloy; wherein the reactants are present in the following molar ratios [ O 2 ] [ O 2 + N 2 ] = 0.25 ⁢   ⁢ to ⁢   ⁢ 1.0 ; [ CH 4 ] [ NH 3 ] = 0.95 ⁢   ⁢ to ⁢   ⁢ 1.05 ;   ⁢ and where a molar ratio of ammonia to the sum of oxygen and nitrogen obeys the following relationship: Y=m·X−a, wherein Y = [ NH 3 ] [ O 2 + N 2 ] X = [ O 2 ] [ O 2 + N 2 ] m=1.25 to 1.40; and a 0.05 to 0.14.

    摘要翻译： 提供了一种生产氰化氢的方法，其中在含有铂或铂合金的催化剂存在下，使甲烷或含甲烷的天然气，氨和富氧空气或氧气反应合成氰化氢; 其中反应物以以下摩尔比存在，其中氨与氧和氮之和的摩尔比遵循以下关系：其中m = 1.25至1.40; 和0.05〜0.14。

    Hydrogen cyanide process and apparatus therefor
    10.
    发明授权
    Hydrogen cyanide process and apparatus therefor 失效

    公开(公告)号：US06656442B2

    公开(公告)日：2003-12-02

    申请号：US10154922

    申请日：2002-05-28

    申请人： Christopher Cowell ,  Ralph Doy

    发明人： Christopher Cowell ,  Ralph Doy

    IPC分类号： C01C302

    CPC分类号： C01C3/0225 ,  B01J8/0285 ,  B01J19/002 ,  B01J19/2425 ,  B01J2219/00081 ,  B01J2219/00159 ,  C01C3/0212

    摘要： A catalytic process and apparatus therefor for the manufacture of hydrogen cyanide. In the process an oxygen rich oxidant stream and at least one oxidant-free feed steam containing methane and ammonia are separately preheated and rapidly mixed to form a detonable mixed stream at a temperature which is at least 50° C. below the autoignition temperature of the mixed stream. The mixed stream is then conveyed to a catalyst capable of catalysing the formation of hydrogen cyanide at such a velocity that detonation is avoided. The process is more energy efficient and gives rise to an effluent stream containing more hydrogen than the conventional Andrussow process.