METHOD FOR PREPARING DIAMINO-DICYCLOHEXYL METHANE
    3.
    发明公开
    METHOD FOR PREPARING DIAMINO-DICYCLOHEXYL METHANE 有权
    VERFAHREN ZUR HERSTELLUNG VON DIAMINO-DICYCLOHEXYL-METHAN

    公开(公告)号:EP3000803A1

    公开(公告)日:2016-03-30

    申请号:EP13885426.0

    申请日:2013-11-22

    IPC分类号: C07C211/36 C07C209/72

    摘要: Disclosed is a method for preparing diamino-dicyclohexyl methane (H 12 MDA) by hydrogenation of diamino-diphenyl methane (MDA). In the process, 4,4'-MDA used as the starting material is firstly hydrogenated to prepare 4,4'-H 12 MDA. When the activity of the catalyst is reduced, the feed is switched from 4,4'-MDA to the mixture of 2,4'-MDA and 4,4'-MDA, and then when the conversion is stabilized, the feed is switched to 4,4'-MDA again. The deactivated catalyst is activated on line by switching the feed to the mixture of 2,4'-MDA and 4,4'-MDA. 4,4'-H 12 MDA having the trans-trans isomer content of 16~24wt% is produced, and the mixture of 2,4'-H 12 MDA and 4,4'-H 12 MDA is also produced, wherein the content of 2,4'-H 12 MDA in the mixture is 4~15 wt%.

    摘要翻译: 公开了通过二氨基二苯基甲烷(MDA)的氢化制备二氨基二环己基甲烷(H 12 MDA)的方法。 在此过程中,首先氢化作为原料的4,4'-MDA,制备4,4'-H 12 MDA。 当催化剂的活性降低时,将进料从4,4'-MDA转化为2,4'-MDA和4,4'-MDA的混合物,然后当转化稳定时,进料被切换 至4,4'-MDA。 通过将进料转化为2,4'-MDA和4,4'-MDA的混合物,使活化的催化剂在线活化。 产生具有16〜24重量%的反式异构体含量的4,4'-H 12 MDA,并且还生产2,4'-H 12 MDA和4,4'-H 12 MDA的混合物,其中 混合物中2,4'-H 12 MDA的含量为4〜15重量%。

    CATALYST FOR PREPARING PHOSGENE AND METHOD FOR PREPARING PHOSGENE USING THE SAME
    6.
    发明公开
    CATALYST FOR PREPARING PHOSGENE AND METHOD FOR PREPARING PHOSGENE USING THE SAME 有权
    制造用催化剂光气和工艺是这样就产生光气

    公开(公告)号:EP3038745A1

    公开(公告)日:2016-07-06

    申请号:EP14841157.2

    申请日:2014-02-11

    摘要: The present invention relates to a catalyst for preparing phosgene and a method for preparing phosgene using the catalyst. Said method comprises: modifying the surface of an activated carbon coating/foamed silicon carbide structural catalyst using an alkali metal salt; filling the catalysts having different thickness of the activated carbon coating and different amount of the alkali metal salt in different sections in the axial direction of the multi-tubular reactor of the fixed bed, and preparing phosgene using Cl2 and CO. The radial and axial temperature difference of the catalyst bed is lowered by using the alkali metal salt-modified activated carbon coating/foamed silicon carbide structural catalyst and by segmental filling, so that high temperature of tube wall is obtained in the case of a larger tube diameter, and high quality of steam is obtained stably.

    摘要翻译: 本发明涉及一种用于制备光气和使用该催化剂制备光气的方法的催化剂。 所述方法包括:使用修改的碱金属盐的活性炭涂层/泡沫碳化硅结构催化剂的表面上; 填充具有使用Cl 2和CO的活性碳涂层的不同厚度和不同量在固定床多管式反应器的轴线方向不同的部分的碱金属盐,和光气制备的催化剂。 催化剂床的径向和轴向温差是通过使用碱金属盐改性的活性炭涂层/泡沫碳化硅结构催化剂和节段性填充降低,所以没有管壁的高温在一个较大的管的情况下,获得 直径,和水蒸汽的高品质被稳定地获得。

    METHOD FOR PREPARING REACTIVE SEALANT RESIN
    8.
    发明公开

    公开(公告)号:EP3904482A1

    公开(公告)日:2021-11-03

    申请号:EP18945060.4

    申请日:2018-12-27

    摘要: Disclosed by the present invention is a method for preparing a reactive sealant resin, the method comprising: (1) under the action of an alkali catalyst, polymerizing a hydroxyl-containing initiator with an epoxy compound to obtain a polyether polyol; (2) adding an alkoxide reagent and a halogenated end-capping agent containing a double bond to the polyether polyol obtained in step (1) for reaction, so as to obtain a crude double-bonded polyether product, and refining the crude product to obtain a modified polyether product; and (3) subjecting the modified polyether and hydrogen-containing silane to silane end-capping reaction under the action of a hydrosilylation catalyst, so as to obtain the target product, i.e., a reactive sealant resin. The resin has excellent properties as well as good adhesion and paintability.

    3-AMINOMETHYL-3, 5, 5-TRIMETHYL CYCLOHEXYLAMINE PREPARATION METHOD
    10.
    发明公开
    3-AMINOMETHYL-3, 5, 5-TRIMETHYL CYCLOHEXYLAMINE PREPARATION METHOD 有权
    HERSTELLUNGSVERFAHRENFÜR3-氨基乙基-3,5,5-三甲基环己基胺

    公开(公告)号:EP2743251A1

    公开(公告)日:2014-06-18

    申请号:EP11870592.0

    申请日:2011-09-06

    IPC分类号: C07C211/36 C07C209/48

    摘要: Provided is a 3-aminomethyl-3,5,5-trimethylcyclohexylamine preparation method. A feeding flow of 3-cyano-3,5,5-trimethylcyclohexylimine is reacted with NH 3 and hydrogen in the presence of a hydrogenation catalyst; the method is characterized by: firstly adding a basic compound to the feeding flow of 3-cyano-3,5,5-trimethylcyclohexylimine, and then after a portion of 3-cyano-3,5,5-trimethylcyclohexylimine has reacted, adding an acidic compound to reaction materials for further hydrogenation reaction to prepare the product. The method ensures that the aminonitrile content in the product is low, thus effectively reducing the duration of the reaction and greatly reducing the consumption of the catalyst during the hydrogenation reaction process.

    摘要翻译: 提供3-氨基甲基-3,5,5-三甲基环己胺制备方法。 在氢化催化剂存在下,将3-氰基-3,5,5-三甲基环己基亚胺的进料流与NH 3和氢气反应; 该方法的特征在于:首先向3-氰基-3,5,5-三甲基环己基亚胺的进料流中加入碱性化合物,然后在一部分3-氰基-3,5,5-三甲基环己基亚胺反应后,加入 酸性化合物与反应物进行进一步氢化反应制备产物。 该方法确保了产物中氨腈含量低,有效地降低了反应持续时间,大大降低了氢化反应过程中催化剂的消耗。