Hydrogenation catalyst, process for its production and its use
    32.
    发明授权
    Hydrogenation catalyst, process for its production and its use 有权
    氢化催化剂,其生产工艺及其应用

    公开(公告)号:US09169192B2

    公开(公告)日:2015-10-27

    申请号:US13518933

    申请日:2010-12-24

    摘要: To provide a hydrogenation catalyst which does not contain chromium oxide, unlike conventional copper/chromium oxide catalysts, and therefore does not cause any environmental contamination or health hazard, and which shows an activity, selectivity and durability at equivalent or higher levels to or than those of conventional copper/chromium oxide catalysts. A hydrogenation catalyst which comprises, as the main components, (1) copper and (2) at least one member selected from the group consisting of silicon oxide, calcium oxide and calcium silicate, wherein the content of the copper is from 20 to 60 wt % based on the entire amount of the hydrogenation catalyst, and in the calcium silicate, the molar ratio of calcium oxide (CaO) to silicon oxide (SiO2) is less than 1.

    摘要翻译: 为了提供与常规的铜/铬氧化物催化剂不同的不含氧化铬的氢化催化剂,因此不引起任何环境污染或健康危害,并且在相当于或更高的水平上表现出活性,选择性和耐久性 的常规铜/铬氧化物催化剂。 一种氢化催化剂,其以(1)铜和(2)选自氧化硅,氧化钙和硅酸钙的至少一种成分为主要成分,其中铜的含量为20〜60重量% 基于氢化催化剂的全部量,在硅酸钙中,氧化钙(CaO)与氧化硅(SiO 2)的摩尔比小于1。

    Method for producing aromatic amines in the liquid phase
    33.
    发明授权
    Method for producing aromatic amines in the liquid phase 有权
    在液相中生产芳香胺的方法

    公开(公告)号:US09150493B2

    公开(公告)日:2015-10-06

    申请号:US13521523

    申请日:2011-01-10

    IPC分类号: C07C211/00 C07C209/36

    CPC分类号: C07C209/36 C07C211/51

    摘要: The invention relates to a process for the preparation of aromatic amines in the liquid phase by catalytic hydrogenation of the corresponding nitroaromatic compounds in at least two reaction spaces connected in series, wherein at least one reaction space is operated isothermally and at least the reaction space connected downstream thereof is operated adiabatically, and in preferred embodiments the sudden adiabatic temperature change is used for monitoring the reaction.

    摘要翻译: 本发明涉及通过在至少两个串联连接的反应空间中对相应的硝基芳族化合物进行催化氢化在液相中制备芳族胺的方法,其中至少一个反应空间是等温运行的,并且至少连接的反应空间 其下游绝热操作,在优选的实施方案中,突然的绝热温度变化用于监测反应。

    Process for preparing aromatic amines
    34.
    发明授权
    Process for preparing aromatic amines 有权
    制备芳香胺的方法

    公开(公告)号:US09139510B2

    公开(公告)日:2015-09-22

    申请号:US13978479

    申请日:2012-01-06

    IPC分类号: C07C209/00 C07C209/36

    CPC分类号: C07C209/36 C07C211/46

    摘要: The invention relates to a process for the continuous preparation of aromatic amines by hydrogenation of the corresponding nitroaromatics in the presence of catalysts arranged in reaction spaces, in which an adiabatically operated reaction space RA is connected downstream of an isothermally operated reaction space RI and RA additionally also has a separate feed for the nitroaromatic to be hydrogenated, RI is fed with the nitroaromatic to be hydrogenated from the start to the end of the hydrogenation, and the product mixture emerging from RI is fed into RA from the start to the end of the hydrogenation, wherein RA can additionally be fed via the separate feed with the nitroaromatic to be hydrogenated.

    摘要翻译: 本发明涉及通过在反应空间中排列的催化剂存在下氢化相应的硝基芳族化合物来连续制备芳族胺的方法,其中绝热操作的反应空间RA另外连接等温操作的反应空间RI和RA的下游 还具有用于待氢化的硝基芳族化合物的单独进料,从加氢的开始到结束,将氮源自硝基芳族化合物进行氢化,并将从RI出现的产物混合物从起始到末端进料到RA中 氢化,其中RA可以另外通过单独的进料与待氢化的硝基芳族化合物进料。

    Fast filtering powder catalytic mixtures
    35.
    发明授权
    Fast filtering powder catalytic mixtures 有权
    快速过滤粉末催化混合物

    公开(公告)号:US09108182B2

    公开(公告)日:2015-08-18

    申请号:US12682080

    申请日:2007-10-15

    摘要: The catalytic mixture resulting of a metal powder catalyst with a solid material (referred to here as a reaction-aid) that has good filtering properties, does not interfere with the reaction, does not interfere with recycling the catalyst back into the reaction, does not interfere with the refining and recovery of the metal from the catalyst after it is spent, and will not become separated from the catalyst during the preparation of this catalytic mixture, the chemical reaction or the separation of this catalytic mixture from the reaction medium, whereas the ratio of the reaction aid to the catalyst ranges from 0.05 to 20 on a weight basis. A preferred metal powder catalyst is acetylene black supported precious metal. Preferred reaction aids are sibunit powder or activated carbon. The catalytic mixture can be used for the catalytic transformation of compounds, such as the hydrogenation of olefins, or the hydrogenation of nitro compounds.

    摘要翻译: 由具有良好过滤性能的固体材料(以下称为反应助剂)得到的不影响反应的金属粉末催化剂所产生的催化剂混合物不妨碍催化剂再循环回到反应中,不会 干扰金属在使用之后从催化剂中精炼和回收,并且在制备该催化混合物期间,催化混合物的化学反应或这种催化混合物与反应介质的分离不会与催化剂分离,而 反应助剂与催化剂的比例为0.05至20重量%。 优选的金属粉末催化剂是支持乙炔黑的贵金属。 优选的反应助剂是锡伯特粉末或活性炭。 催化混合物可用于化合物的催化转化,例如烯烃的氢化或硝基化合物的氢化。

    PROCESS FOR REDUCING CHLORONITROBENZENE CATALYZED BY PLATINUM-NANOPARTICLES STABILIZED ON MODIFIED MONTMORILLONITE CLAY
    38.
    发明申请
    PROCESS FOR REDUCING CHLORONITROBENZENE CATALYZED BY PLATINUM-NANOPARTICLES STABILIZED ON MODIFIED MONTMORILLONITE CLAY 有权
    降低稳定在改性蒙脱石粘土上的纳米颗粒催化氯化苯并噻唑的方法

    公开(公告)号:US20150080609A1

    公开(公告)日:2015-03-19

    申请号:US14550373

    申请日:2014-11-21

    IPC分类号: C07C209/36

    摘要: Pt0-nanoparticles in the size range of 0 to 10 nm were prepared in-situ by impregnation of H2PtCl66H2O into the nanopores of modified montmorillonite followed by reduction with different reducing agents like ethylene glycol, sodium citrate, hydrogen, hydrazine and sodium borohydrate. The montmorillonite was modified by activation with mineral acids under controlled condition for generating desired nanopores. XRD pattern of Pt0-nanoparticles revealed the formation of face centered cubic (fcc) lattice. These supported Pt0-nanoparticles show efficient catalytic activity for the selective reduction of chloronitrobenzenes. As a typical example, at a H2 pressure of 10 bars, temperature 45° C. for a period of 15 min, the Pt0-nanoparticles (prepared by reduction with hydrazine) exhibit conversion of o-chloronitrobenzene up to 100% and selectivity >99% to o-chloroanilines with very negligible amount of C—Cl bond cleavage.

    摘要翻译: 通过将H2PtCl66H2O浸渍到改性蒙脱石的纳米孔中,然后用不同的还原剂如乙二醇,柠檬酸钠,氢,肼和硼氢化钠还原,原位制备大小范围为0至10nm的Pt0-纳米颗粒。 在控制条件下用无机酸活化来修饰蒙脱石以产生所需的纳米孔。 PtO纳米颗粒的XRD图形显示出面心立方(fcc)晶格的形成。 这些负载的PtO-纳米颗粒显示出有效的催化活性用于选择性还原氯硝基苯。 作为典型的例子,在10巴的H 2压力,温度45℃,15分钟的时间内,Pt0纳米颗粒(通过肼还原制备)显示邻氯硝基苯转化率达100%,选择性> 99 %至O-氯苯胺,C-Cl键切割量非常小。

    Monitoring of the stoichiometric ratio in the reaction of nitroaromatics with hydrogen
    39.
    发明授权
    Monitoring of the stoichiometric ratio in the reaction of nitroaromatics with hydrogen 有权
    监测硝基芳烃与氢气反应的化学计量比

    公开(公告)号:US08895783B2

    公开(公告)日:2014-11-25

    申请号:US13759466

    申请日:2013-02-05

    申请人: BASF SE

    IPC分类号: C07C209/00 C07C209/36

    摘要: The present invention relates to a continuous process for preparing at least one aromatic amine by hydrogenation of at least one nitroaromatic by means of hydrogen, where a liquid phase comprising at least the aromatic amine and a gas phase comprising at least hydrogen are present, in the presence of a catalyst suspended in the liquid phase at a temperature of from 50 to 250° C. and a pressure of from 5 to 50 bar, wherein the pressure in the reactor is kept essentially constant by continuous adaptation of the amount of hydrogen fed to the reactor, the total amount of hydrogen fed to the reactor is monitored and the introduction of the at least one nitroaromatic is interrupted if the hydrogen uptake in the reactor is not at least 50 mol % of the amount of hydrogen required for stoichiometric reaction of the at least one nitroaromatic to form the at least one aromatic amine.

    摘要翻译: 本发明涉及通过氢气至少一种硝基芳族化合物来制备至少一种芳族胺的连续方法,其中至少包含芳族胺的液相和至少包含氢的气相存在于 在50至250℃的温度和5至50巴的压力下悬浮在液相中的催化剂的存在,其中反应器中的压力通过连续适应供给到 监测反应器中进料到反应器中的氢气总量,如果反应器中的氢气吸收量不是化学计量反应所需的氢量的至少50摩尔%,则至少一种硝基芳族化合物的引入被中断 至少一种硝基芳族化合物以形成所述至少一种芳族胺。

    Activated base metal catalysts
    40.
    发明授权
    Activated base metal catalysts 有权
    活性贱金属催化剂

    公开(公告)号:US08889911B2

    公开(公告)日:2014-11-18

    申请号:US12601820

    申请日:2007-05-29

    摘要: Nitro-compounds are hydrogenated with an activated Ni catalyst that is doped during and/or after activation with one or more elements from the list of Mg, Ca, Ba, Ti, Zr, Ce, Nb, Cr, Mo, W, Mn, Re, Fe, Co, Ir, Ni, Cu, Ag, Au, Rh, Ru and Bi whereas the Ni/Al alloy may not, but preferentially can contain prior to activation one or more doping elements from the list of Ti, Ce, V, Cr, Mo, W, Mn, Re, Fe, Ru, Co, Rh, Ir, Pd, Pt and Bi. If the Ni/Al alloy contained one or more of the above mentioned suitable alloy doping elements prior to activation, the resulting catalyst can then be doped with one or more of the elements from the list of Mg, Ca, Ba, Ti, Zr, Ce, V, Nb, Cr, Mo, W, Mn, Re, Fe, Ru, Co, Rh, Ir, Ni, Pd, Pt, Cu, Ag, Au and Bi by their adsorption onto the surface of the catalyst.

    摘要翻译: 硝基化合物用活化的Ni催化剂氢化,所述活化的Ni催化剂在Mg,Ca,Ba,Ti,Zr,Ce,Nb,Cr,Mo,W,Mn的列表中的一种或多种元素的活化期间和/ Re,Fe,Co,Ir,Ni,Cu,Ag,Au,Rh,Ru和Bi,而Ni / Al合金在活化前可能不含有一种或多种来自Ti,Ce, V,Cr,Mo,W,Mn,Re,Fe,Ru,Co,Rh,Ir,Pd,Pt和Bi。 如果Ni / Al合金在活化之前含有一种或多种上述合适的合金掺杂元素,则所得到的催化剂然后可以从Mg,Ca,Ba,Ti,Zr的列表中掺入一种或多种元素, 通过吸附在催化剂表面上的Ce,V,Nb,Cr,Mo,W,Mn,Re,Fe,Ru,Co,Rh,Ir,Ni,Pd,Pt,Cu,Ag,Au和Bi。