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123 条记录 (耗时 0.031 秒)

    Phosphites
    63.
    发明授权
    Phosphites 有权

    公开(公告)号：US06770770B1

    公开(公告)日：2004-08-03

    申请号：US10111477

    申请日：2002-04-25

    申请人： Robert Baumann ,  Jakob Fischer ,  Tim Jungkamp ,  Dagmar Pascale Kunsmann-Keitel ,  Wolfgang Siegel

    发明人： Robert Baumann ,  Jakob Fischer ,  Tim Jungkamp ,  Dagmar Pascale Kunsmann-Keitel ,  Wolfgang Siegel

    IPC分类号： C07F9145

    CPC分类号： C07C253/30 ,  B01J31/185 ,  B01J2231/323 ,  B01J2231/52 ,  B01J2531/847 ,  C07C253/10 ,  C07F9/145 ,  C07C255/04 ,  C07C255/07 ,  C07C255/19

    摘要： Novel phosphites have the formula I P(O—R1)x(O—R2)y(O—R3)z(O—R4)p  I where R1: aromatic radical having a C1-C18-alkyl substituent in the o position relative to the oxygen atom which connects the phosphorus atom to the aromatic system, or having an aromatic substituent in the o position relative to the oxygen atom which connects the phosphorus atom to the aromatic system, or having an aromatic system fused on in the o position relative to the oxygen atom which connects the phosphorus atom to the aromatic system, R2: aromatic radical having a C1-C18-alkyl substituent in the m position relative to the oxygen atom which connects the phosphorus atom to the aromatic system, or having an aromatic substituent in the m position relative to the oxygen atom which connects the phosphorus atom to the aromatic system, or having an aromatic system fused on in the m position relative to the oxygen atom which connects the phosphorus atom to the aromatic system, where the aromatic radical bears a hydrogen atom in the o position relative to the oxygen atom which connects the phosphorus atom to the aromatic system, R3: aromatic radical having a C1-C18-alkyl substituent in the p position relative to the oxygen atom which connects the phosphorus atom to the aromatic system, or having an aromatic substituent in the p position relative to the oxygen atom which connects the phosphorus atom to the aromatic system, where the aromatic radical bears a hydrogen atom in the o position relative to the oxygen atom which connects the phosphorus atom to the aromatic system, R4: aromatic radical which bears substituents other than those defined for R1, R2 and R3 in the o, m and p positions relative to the oxygen atom which connects the phosphorus atom to the aromatic system, where the aromatic radical bears a hydrogen atom in the o position relative to the oxygen atom which connects the phosphorus atom to the aromatic system, x: 1 or 2, y, z, p: independently of one another, 0, 1 or 2, with the proviso that x+y+z+p=3.

    Preparation of aliphatic, unsaturated nitriles
    66.
    发明授权
    Preparation of aliphatic, unsaturated nitriles 失效
    脂肪族不饱和腈的制备

    公开(公告)号：US5892092A

    公开(公告)日：1999-04-06

    申请号：US144478

    申请日：1998-08-31

    申请人： Andreas Kramer ,  Wolfgang Siegel ,  Michael Henningsen ,  Georg Heinrich Grosch

    发明人： Andreas Kramer ,  Wolfgang Siegel ,  Michael Henningsen ,  Georg Heinrich Grosch

    IPC分类号： B01J23/02 ,  C07B61/00 ,  C07C253/00 ,  C07C255/06 ,  C07C255/07 ,  C07C255/31

    CPC分类号： C07C253/00

    摘要： A process for preparing unsaturated nitriles of the formula I ##STR1## where R, R.sup.1 and R.sup.2 are each independently of one another alkyl or alkenyl each having 1-20 carbon atoms or cycloalkyl or cycloalkenyl each having 3-12 carbon atoms and any two of the radicals R, R.sup.1 and R.sup.2 may be part of a saturated or unsaturated ring and R.sup.1 and R.sup.2 may also be hydrogen and n is 0 or 1-20, by dehydration of oximes of the formula II ##STR2## where R, R.sup.1, R.sup.2 and n are as defined above, comprises dehydrating in the gas or liquid phase at from 150.degree. to 300.degree. C. over a heterogeneous catalyst consisting of an oxidic, carbidic or nitridic support doped with basic oxides and/or hydroxides or compounds which are converted into said oxides or hydroxides under the reaction conditions, or of said basic oxides.

    摘要翻译： 制备式I的不饱和腈的方法，其中R，R 1和R 2各自独立地为各自具有1-20个碳原子的烷基或链烯基或各自具有3-12个碳原子的环烷基或环烯基，任何两个 的基团R 1，R 2和R 2可以是饱和或不饱和环的一部分，R 1和R 2也可以是氢，n是0或1-20，通过式II的肟脱水，其中R，R 1 R2和n如上定义，包括在气相或液相中在150-300℃下脱水，所述非均相催化剂由掺有碱性氧化物和/或氢氧化物或化合物的氧化，碳化或氮化载体组成， 在反应条件下或所述碱性氧化物中转化为所述氧化物或氢氧化物。

    Gravity circulation mixer
    70.
    发明授权
    Gravity circulation mixer 失效
    重力循环搅拌机

    公开(公告)号：US4412748A

    公开(公告)日：1983-11-01

    申请号：US286544

    申请日：1981-07-24

    申请人： Norbert Wohnhas ,  Wolfgang Siegel

    发明人： Norbert Wohnhas ,  Wolfgang Siegel

    IPC分类号： B01F5/10 ,  B01F5/00 ,  B01F5/24 ,  B01F13/02

    CPC分类号： B01F5/24

    摘要： A gravity circulation mixer for bulk goods including a mixing container in which the bulk goods are divided into two quantity flows. After having recombined the two individual quantity flows of bulk goods in a mixing bowl, it is conveyed via a vertical ascending pipe and a gravity pipe back into the mixing container. The gravity pipe is arranged at an angle with respect to the ascending pipe and extends downwardly into the mixing container. The connection between the ascending pipe and the gravity pipe is constituted by a baffle portion so that the upwardly conveyed bulk goods are deflected at the baffle portion and caused to fall into the mixing container.

    摘要翻译： 一种用于散装货物的重力循环混合器，包括混合容器，其中散装货物分为两个数量流。 在混合碗中重新组装散装货物的两个单独数量的流量后，经由垂直上升的管道和重力管道输送回混合容器。 重力管相对于上升管成一角度并向下延伸到混合容器中。 上升管和重力管之间的连接由挡板部分构成，使得向上输送的散装货物在挡板部分处偏转并且使其落入混合容器中。