Method for producing polyamides
    1.
    发明申请
    Method for producing polyamides 有权
    生产聚酰胺的方法

    公开(公告)号:US20050154182A1

    公开(公告)日:2005-07-14

    申请号:US10511162

    申请日:2003-04-08

    摘要: A process for preparing a polyamide by reacting a mixture which comprises a monomer which has a nitrile group and has at least one other functional group capable of forming a carboxamide group, and comprises water, in the presence of titanium dioxide as catalyst, which comprises using titanium dioxide whose BET surface area, determined to the German standard DIN 66 131 volumetrically by the multipoint method, is in the range from 5 to 35 m2/g.

    摘要翻译: 一种制备聚酰胺的方法,该方法通过使二氧化钛作为催化剂使包含具有腈基并且具有至少一个能够形成羧酰胺基的其它官能团的单体的混合物并包含水,包括使用 通过多点法测定的德国标准DIN 66131的BET表面积的二氧化钛的浓度范围为5至35m 2 / g。

    Method for producing polyamides
    2.
    发明授权
    Method for producing polyamides 有权
    生产聚酰胺的方法

    公开(公告)号:US07470765B2

    公开(公告)日:2008-12-30

    申请号:US10511162

    申请日:2003-04-08

    IPC分类号: C08G69/00

    摘要: A process for preparing a polyamide by reacting a mixture which comprises a monomer which has a nitrile group and has at least one other functional group capable of forming a carboxamide group, and comprises water, in the presence of titanium dioxide as catalyst, which comprises using titanium dioxide whose BET surface area, determined to the German standard DIN 66 131 volumetrically by the multipoint method, is in the range from 5 to 35 m2/g.

    摘要翻译: 一种制备聚酰胺的方法,该方法通过使二氧化钛作为催化剂使包含具有腈基并且具有至少一个能够形成羧酰胺基的其它官能团的单体的混合物并包含水,包括使用 通过多点法测定的德国标准DIN 66 131的二氧化钛的BET表面积在5至35m 2 / g的范围内。

    Purification of caprolactam
    7.
    发明授权
    Purification of caprolactam 有权
    己内酰胺的纯化

    公开(公告)号:US07217818B2

    公开(公告)日:2007-05-15

    申请号:US10534802

    申请日:2003-11-11

    IPC分类号: C07D201/16

    CPC分类号: C07D201/16 C07D201/08

    摘要: A process for removing high boilers from crude caprolactam which comprises high boilers, caprolactam and in some cases low boilers, and which has been obtained by a) reacting 6-aminocapronitrile with water to give a reaction mixture b) removing ammonia and unconverted water from the reaction mixture to obtain crude caprolactam, which comprises c) feeding the crude caprolactam to a distillation apparatus to obtain a first substream via the top as a product and a second substream via the bottom, by setting the pressure in the distillation in such a way that the bottom temperature does not go below 170° C., and adjusting the second substream in such a way that the caprolactam content of the second substream is not less than 10% by weight, based on the entire second substream.

    摘要翻译: 一种从粗己内酰胺中除去高锅炉的方法,其包括高锅炉,己内酰胺,在某些情况下是低锅炉,并且通过以下方法获得:a)使6-氨基己腈与水反应得到反应混合物; b)除去氨和未转化的水 反应混合物以获得粗己内酰胺,其包括c)将粗己内酰胺加入到蒸馏装置中,通过顶部获得第一子流作为产物,通过底部通过设置第二子流,通过将蒸馏中的压力设定为使得 底部温度不低于170℃,并且调节第二子流,使得第二子流的己内酰胺含量基于整个第二子流不小于10重量%。

    Method for producing tricyclodecandialdehyde
    8.
    发明申请
    Method for producing tricyclodecandialdehyde 失效
    三环癸二醛生产方法

    公开(公告)号:US20070100168A1

    公开(公告)日:2007-05-03

    申请号:US10581802

    申请日:2004-12-14

    IPC分类号: C07C45/49

    摘要: Process for preparing tricyclodecanedialdehyde by hydroformylation of dicyclopentadiene by means of a CO/H2 mixture at elevated temperature and under superatmospheric pressure in the presence of a rhodium catalyst which has not been modified by means of a ligand and is homogeneously dissolved in the hydroformylation medium, wherein the hydroformylation is carried out at a pressure of from 200 to 350 bar in at least two reaction zones, with a reaction temperature of from 80 to 120° C. being set in a first reaction zone and a reaction temperature of from 120 to 150° C. being set in a reaction zone following this reaction zone, with the proviso that the reaction temperature in the subsequent reaction zone is at least 5° C. higher than in the preceding reaction zone.

    摘要翻译: 在高温和超大气压下,在没有通过配体修饰的铑催化剂存在下,通过二环戊二烯加氢甲酰化二环戊二烯制备三环癸二醛的方法, 均匀地溶解在加氢甲酰基化介质中,其中加氢甲酰化在至少两个反应区中在200-350巴的压力下进行,反应温度为80-120℃设定在第一反应区和 在该反应区之后的反应区中设置120至150℃的反应温度,条件是后续反应区中的反应温度比前述反应区高至少5℃。

    Method for purifying caprolactam
    9.
    发明申请
    Method for purifying caprolactam 有权
    己内酰胺纯化方法

    公开(公告)号:US20060041122A1

    公开(公告)日:2006-02-23

    申请号:US10534802

    申请日:2003-11-11

    IPC分类号: C07D201/16

    CPC分类号: C07D201/16 C07D201/08

    摘要: A process for removing high boilers from crude caprolactam which comprises high boilers, caprolactam and in some cases low boilers, and which has been obtained by a) reacting 6-aminocapronitrile with water to give a reaction mixture b) removing ammonia and unconverted water from the reaction mixture to obtain crude caprolactam, which comprises c) feeding the crude caprolactam to a distillation apparatus to obtain a first substream via the top as a product and a second substream via the bottom, by setting the pressure in the distillation in such a way that the bottom temperature does not go below 170° C., and adjusting the second substream in such a way that the caprolactam content of the second substream is not less than 10% by weight, based on the entire second substream.

    摘要翻译: 一种从粗己内酰胺中除去高锅炉的方法,其包括高锅炉,己内酰胺,在某些情况下是低锅炉,并且通过以下方法获得:a)使6-氨基己腈与水反应得到反应混合物; b)除去氨和未转化的水 反应混合物以获得粗己内酰胺,其包括c)将粗己内酰胺加入到蒸馏装置中,通过顶部获得第一子流作为产物,通过底部通过设置第二子流,通过将蒸馏中的压力设定为使得 底部温度不低于170℃,并且调节第二子流,使得第二子流的己内酰胺含量基于整个第二子流不小于10重量%。