Process for preparing piperazine
    1.
    发明授权
    Process for preparing piperazine 有权
    制备哌嗪的方法

    公开(公告)号:US08981093B2

    公开(公告)日:2015-03-17

    申请号:US13910554

    申请日:2013-06-05

    Applicant: BASF SE

    Abstract: Process for preparing piperazine of the formula I by reacting diethanolamine (DEOA) of the formula II with ammonia in the presence of hydrogen and a supported, metal-containing catalyst has been found, wherein the catalytically active mass of the catalyst, prior to its reduction with hydrogen, comprises oxygen-containing compounds of aluminum, copper, nickel and cobalt and in the range from 0.2 to 5.0% by weight of oxygen-containing compounds of tin, calculated as SnO, and the reaction is carried out in the liquid phase at an absolute pressure in the range from 160 to 220 bar, a temperature in the range from 180 to 220° C., using ammonia in a molar ratio to DEOA used of from 5 to 25 and in the presence of 0.2 to 9.0% by weight of hydrogen, based on the total amount of DEOA used and ammonia.

    Abstract translation: 已经发现通过使式II的二乙醇胺(DEOA)与氢气和负载的含金属的催化剂的氨反应制备式I的哌嗪的方法,其中催化剂的催化活性物质在其还原之前 与氢气一起包含铝,铜,镍和钴的含氧化合物,其含量为0.2至5.0重量%,以SnO计算的含氧化合物锡,反应在液相中进行 使用160-220巴的绝对压力,温度在180-220℃范围内,使用摩尔比为DEA的氨为5至25,在0.2至9.0重量%存在下 的氢气,基于使用的DEOA的总量和氨。

    Process for Preparing Piperazine
    2.
    发明申请
    Process for Preparing Piperazine 有权
    哌嗪制备方法

    公开(公告)号:US20130331573A1

    公开(公告)日:2013-12-12

    申请号:US13910554

    申请日:2013-06-05

    Applicant: BASF SE

    Abstract: Process for preparing piperazine of the formula I by reacting diethanolamine (DEOA) of the formula II with ammonia in the presence of hydrogen and a supported, metal-containing catalyst has been found, wherein the catalytically active mass of the catalyst, prior to its reduction with hydrogen, comprises oxygen-containing compounds of aluminum, copper, nickel and cobalt and in the range from 0.2 to 5.0% by weight of oxygen-containing compounds of tin, calculated as SnO, and the reaction is carried out in the liquid phase at an absolute pressure in the range from 160 to 220 bar, a temperature in the range from 180 to 220° C., using ammonia in a molar ratio to DEOA used of from 5 to 25 and in the presence of 0.2 to 9.0% by weight of hydrogen, based on the total amount of DEOA used and ammonia.

    Abstract translation: 已经发现通过使式II的二乙醇胺(DEOA)与氢气和负载的含金属的催化剂的氨反应制备式I的哌嗪的方法,其中催化剂的催化活性物质在其还原之前 与氢气一起包含铝,铜,镍和钴的含氧化合物,其含量为0.2至5.0重量%,以SnO计算的含氧化合物锡,反应在液相中进行 使用160-220巴的绝对压力,温度在180-220℃范围内,使用摩尔比为DEA的氨为5至25,在0.2至9.0重量%存在下 的氢气,基于使用的DEOA的总量和氨。

    Process for Preparing Piperazine
    3.
    发明申请
    Process for Preparing Piperazine 审中-公开
    哌嗪制备方法

    公开(公告)号:US20130331574A1

    公开(公告)日:2013-12-12

    申请号:US13910602

    申请日:2013-06-05

    Applicant: BASF SE

    CPC classification number: C07D295/023

    Abstract: Process for preparing piperazine of the formula I by reacting diethanolamine (DEOA) of the formula II with ammonia (NH3) in the presence of hydrogen and a supported, metal-containing catalyst, wherein the catalytically active mass of the catalyst, prior to its reduction with hydrogen, comprises 20 to 85% by weight of oxygen-containing compounds of zirconium, calculated as ZrO2, 1 to 30% by weight of oxygen-containing compounds of copper, calculated as CuO, 14 to 70% by weight of oxygen-containing compounds of nickel, calculated as NiO, and 0 to 5% by weight of oxygen-containing compounds of molybdenum, calculated as MoO3, and the reaction is carried out in the liquid phase at an absolute pressure in the range from 160 to 220 bar, a temperature in the range from 180 to 220° C., using ammonia in a molar ratio to DEOA used of from 5 to 20 and in the presence of 0.2 to 9.0% by weight of hydrogen, based on the total amount of DEOA used and ammonia.

    Abstract translation: 通过使式II的二乙醇胺(DEOA)与氢气和负载的含金属催化剂的存在下的氨(NH 3)反应制备式I的哌嗪的方法,其中催化剂的催化活性物质在其还原之前 含氢量为20〜85重量%,以ZrO 2计,含氧化合物的锆为1〜30重量%,以CuO表示的含氧化合物的铜为14〜70重量% 以NiO计算的镍化合物和以重量计为MoO 3的0-5%重量的含氧化合物的钼,反应在液相中以160-220巴的绝对压力进行, 温度在180-220℃的范围内,使用的摩尔比为使用的DEOA为5至20的氨和在0.2至9.0重量%的氢气存在下,基于所用的DEOA的总量和 氨。

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