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    • 1. 发明授权
    • Production of xylylenediamines
    • 生产二甲苯二胺
    • US07626057B2
    • 2009-12-01
    • US11768949
    • 2007-06-27
    • Tatsuyuki KumanoRyusuke ShigematsuKinji KatoKenji Nakaya
    • Tatsuyuki KumanoRyusuke ShigematsuKinji KatoKenji Nakaya
    • C07C209/00
    • C07C209/48C07C209/84C07C211/27
    • A method of producing xylylenediamine by a two-stage hydrogenation of a starting phthalonitrile in a solvent. The main steps of the method are a hydrogenation step 1 and a hydrogenation step 2. In the hydrogenation step 1, a solution of the starting phthalonitrile in the solvent containing liquid ammonia is fed to an inlet of a first reaction zone and the hydrogenation is carried out in the first reaction zone in the presence of a heterogeneous catalyst, to hydrogenate nitrile groups in the starting phthalonitrile to aminomethyl groups. A part of the hydrogenation product solution from the first reaction zone is circulated to the inlet of the first reaction zone and the rest is introduced into the hydrogenation step 2 where further undergoes the hydrogenation.
    • 通过在溶剂中通过起始邻苯二甲腈的两步氢化制备苯二甲胺的方法。 该方法的主要步骤是氢化步骤1和氢化步骤2.在氢化步骤1中,将起始邻苯二甲腈在含有液氨的溶剂中的溶液进料到第一反应区的入口,并进行氢化 在非均相催化剂存在下在第一反应区中,将起始邻苯二甲腈中的腈基氢化成氨基甲基。 将来自第一反应区的氢化产物溶液的一部分循环到第一反应区的入口,其余部分被引入氢化步骤2中,其中进一步进行氢化。
    • 2. 发明申请
    • Production of Xylylenediamines
    • 生产甲苯二胺
    • US20080009654A1
    • 2008-01-10
    • US11768949
    • 2007-06-27
    • Tatsuyuki KumanoRyusuke ShigematsuKinji KatoKenji Nakaya
    • Tatsuyuki KumanoRyusuke ShigematsuKinji KatoKenji Nakaya
    • C07C209/00
    • C07C209/48C07C209/84C07C211/27
    • A method of producing xylylenediamine by a two-stage hydrogenation of a starting phthalonitrile in a solvent. The main steps of the method are a hydrogenation step 1 and a hydrogenation step 2. In the hydrogenation step 1, a solution of the starting phthalonitrile in the solvent containing liquid ammonia is fed to an inlet of a first reaction zone and the hydrogenation is carried out in the first reaction zone in the presence of a heterogeneous catalyst, to hydrogenate nitrile groups in the starting phthalonitrile to aminomethyl groups. A part of the hydrogenation product solution from the first reaction zone is circulated to the inlet of the first reaction zone and the rest is introduced into the hydrogenation step 2 where further undergoes the hydrogenation.
    • 通过在溶剂中通过起始邻苯二甲腈的两步氢化制备苯二甲胺的方法。 该方法的主要步骤是氢化步骤1和氢化步骤2.在氢化步骤1中,将起始邻苯二甲腈在含有液氨的溶剂中的溶液进料到第一反应区的入口,并进行氢化 在非均相催化剂存在下在第一反应区中,将起始邻苯二甲腈中的腈基氢化成氨基甲基。 将来自第一反应区的氢化产物溶液的一部分循环到第一反应区的入口,其余部分被引入氢化步骤2中,其中进一步进行氢化。
    • 3. 发明申请
    • Process for producing 1,3-naphthalenedicarboxylic acid
    • 1,3-萘二甲酸的制备方法
    • US20050187403A1
    • 2005-08-25
    • US11063970
    • 2005-02-24
    • Hiroshi OgawaJunya NishiuchiMitsuharu KitamuraKinji Kato
    • Hiroshi OgawaJunya NishiuchiMitsuharu KitamuraKinji Kato
    • C07C51/255C07C51/265C07C63/38
    • C07C51/265C07C63/38
    • 1,3-Naphthalenedicarboxylic acid is produced by oxidizing 1,3-dialkylnaphthalene in a liquid-phase with an oxygen-containing gas in the presence of a C2-C6 lower aliphatic carboxylic acid solvent and a catalyst comprising a heavy metal and a bromine compound. By regulating the ratio of the total number of bromine atoms fed into a reaction system to the total number of 1,3-dialkylnaphthalene molecules fed into the reaction system within a specific range, 1,3-naphthalenedicarboxylic acid is efficiently produced with low costs. Using 1,3-dimethylnaphthalene, as the starting 1,3-dialkylnaphthalene, which is produced by isomerizing dimethylnaphthalenes in a liquid phase in the presence of a catalyst comprising hydrogen fluoride and boron trifluoride together with a C5-C10 alicyclic saturated hydrocarbon having a five-membered or six-membered ring structure, a highly pure 1,3-naphthalenedicarboxylic acid is efficiently produced.
    • 1,3-二萘基二羧酸是通过在C 2 -C 6 -C 6的存在下用含氧气体在液相中氧化1,3-二烷基萘而制备的, 低级脂族羧酸溶剂和包含重金属和溴化合物的催化剂。 通过调节进料到反应体系中的溴原子总量与进料到反应体系中的1,3-二烷基萘分子的总数在特定范围内的比例,可以低成本有效地制备1,3-萘二羧酸。 使用1,3-二甲基萘作为起始1,3-二烷基萘,其通过在包含氟化氢和三氟化硼的催化剂存在下在液相中异构化二甲基萘一起制备,与C 5 N 5 具有5元或6元环结构的-C 10脂肪族饱和烃,高纯度的1,3-萘二羧酸。
    • 6. 发明申请
    • METHOD OF PRODUCING XYLYLENEDIAMINE
    • 生产XYLYLEDEDIAMINE的方法
    • US20070270613A1
    • 2007-11-22
    • US11749787
    • 2007-05-17
    • Tomohiro SugawaraTakafumi AbeTatsuyuki KumanoKinji Kato
    • Tomohiro SugawaraTakafumi AbeTatsuyuki KumanoKinji Kato
    • C07C209/44
    • C07C209/48C07C211/27
    • A method of producing xylylenediamine of the present invention includes the steps of: subjecting a liquid mixture of phthalonitriles with liquid ammonia or a mixture of liquid ammonia and an organic solvent to a first catalytic hydrogenation treatment, thereby hydrogenating the phthalonitriles to obtain a reaction product (A), wherein a content of the liquid ammonia or the mixture of liquid ammonia and an organic solvent is 80 wt % or more; removing the liquid ammonia in the reaction product (A) to obtain a reaction product (B); subjecting the reaction product (B) to a second catalytic hydrogenation treatment, thereby hydrogenating cyanobenzylamine to obtain a reaction product (C); and distilling the reaction product (C) to purify xylylenediamine.
    • 本发明的苯二甲胺的制造方法包括以下步骤:将液氨或液态氨与有机溶剂的混合液的酞腈液进行第一次催化氢化处理,氢化二氯腈得到反应产物( A),其中液氨或液氨和有机溶剂的混合物的含量为80重量%以上; 除去反应产物(A)中的液氨,得到反应产物(B); 使反应产物(B)进行第二催化氢化处理,由此氢化氰基苄胺得到反应产物(C); 并蒸馏反应产物(C)以净化苯二甲胺。
    • 9. 发明授权
    • Method of producing xylylenediamine
    • 产生苯二甲胺的方法
    • US07465832B2
    • 2008-12-16
    • US11749787
    • 2007-05-17
    • Tomohiro SugawaraTakafumi AbeTatsuyuki KumanoKinji Kato
    • Tomohiro SugawaraTakafumi AbeTatsuyuki KumanoKinji Kato
    • C07C209/48
    • C07C209/48C07C211/27
    • A method of producing xylylenediamine of the present invention includes the steps of: subjecting a liquid mixture of phthalonitriles with liquid ammonia or a mixture of liquid ammonia and an organic solvent to a first catalytic hydrogenation treatment, thereby hydrogenating the phthalonitriles to obtain a reaction product (A), wherein a content of the liquid ammonia or the mixture of liquid ammonia and an organic solvent is 80 wt % or more; removing the liquid ammonia in the reaction product (A) to obtain a reaction product (B); subjecting the reaction product (B) to a second catalytic hydrogenation treatment, thereby hydrogenating cyanobenzylamine to obtain a reaction product (C); and distilling the reaction product (C) to purify xylylenediamine.
    • 本发明的苯二甲胺的制造方法包括以下步骤:将液氨或液态氨与有机溶剂的混合液的酞腈液进行第一次催化氢化处理,氢化二氯腈得到反应产物( A),其中液氨或液氨和有机溶剂的混合物的含量为80重量%以上; 除去反应产物(A)中的液氨,得到反应产物(B); 使反应产物(B)进行第二催化氢化处理,由此氢化氰基苄胺得到反应产物(C); 并蒸馏反应产物(C)以净化苯二甲胺。