Production of xylylenediamines
    1.
    发明授权
    Production of xylylenediamines 有权
    生产二甲苯二胺

    公开(公告)号:US07626057B2

    公开(公告)日:2009-12-01

    申请号:US11768949

    申请日:2007-06-27

    IPC分类号: C07C209/00

    摘要: 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.

    摘要翻译: 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。

    Production of Xylylenediamines
    2.
    发明申请
    Production of Xylylenediamines 有权
    生产甲苯二胺

    公开(公告)号:US20080009654A1

    公开(公告)日:2008-01-10

    申请号:US11768949

    申请日:2007-06-27

    IPC分类号: C07C209/00

    摘要: 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.

    摘要翻译: 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。

    Process for producing xylylenediamine
    3.
    发明授权
    Process for producing xylylenediamine 有权
    生产苯二甲胺的方法

    公开(公告)号:US08759588B2

    公开(公告)日:2014-06-24

    申请号:US13062334

    申请日:2009-08-27

    IPC分类号: C07C209/00

    CPC分类号: C07C209/48 C07C211/27

    摘要: The invention provides a process for producing xylylenediamine, including supplying a solution of phthalonitrile dissolved in a solvent to a reactor filled with a catalyst and hydrogenating the phthalonitrile to produce xylylenediamine, characterized in that the process includes halting supply of the solution; (2) bringing a washing liquid into contact with the catalyst, the washing liquid having a phthalonitrile content of 3 mass % or less and a xylylenediamine content of 1 mass % or more; and after completion of the contact, resuming supply of the solution, and employing the catalyst continuously in hydrogenation. Through the production process of the invention, the catalyst can be employed continuously for a long period of time, and the catalyst-related cost can be considerably reduced.

    摘要翻译: 本发明提供了一种生产苯二甲胺的方法,包括将溶于溶剂中的邻苯二甲腈溶液供应到填充有催化剂的反应器中,并使邻苯二甲腈氢化以产生苯二甲胺,其特征在于该方法包括停止溶液的供应; (2)使洗涤液与催化剂接触,洗涤液的邻苯二腈含量为3质量%以下,苯二甲胺含量为1质量%以上; 接触完成后,恢复溶液的供应,并在催化剂中连续使用催化剂。 通过本发明的制造方法,能够长时间连续使用催化剂,能够显着降低催化剂成本。

    PROCESS FOR PRODUCING XYLYLENEDIAMINE
    4.
    发明申请
    PROCESS FOR PRODUCING XYLYLENEDIAMINE 有权
    生产XYLYLEDEDIAMINE的方法

    公开(公告)号:US20110245540A1

    公开(公告)日:2011-10-06

    申请号:US13062334

    申请日:2009-08-27

    IPC分类号: C07C209/48

    CPC分类号: C07C209/48 C07C211/27

    摘要: The invention provides a process for producing xylylenediamine, including supplying a solution of phthalonitrile dissolved in a solvent to a reactor filled with a catalyst and hydrogenating the phthalonitrile to produce xylylenediamine, characterized in that the process includes halting supply of the solution; (2) bringing a washing liquid into contact with the catalyst, the washing liquid having a phthalonitrile content of 3 mass % or less and a xylylenediamine content of 1 mass % or more; and after completion of the contact, resuming supply of the solution, and employing the catalyst continuously in hydrogenation. Through the production process of the invention, the catalyst can be employed continuously for a long period of time, and the catalyst-related cost can be considerably reduced.

    摘要翻译: 本发明提供了一种生产苯二甲胺的方法,包括将溶于溶剂中的邻苯二甲腈溶液供应到填充有催化剂的反应器中,并使邻苯二甲腈氢化以产生苯二甲胺,其特征在于该方法包括停止溶液的供应; (2)使洗涤液与催化剂接触,洗涤液的邻苯二腈含量为3质量%以下,苯二甲胺含量为1质量%以上; 接触完成后,恢复溶液的供应,并在催化剂中连续使用催化剂。 通过本发明的制造方法,能够长时间连续使用催化剂,能够显着降低催化剂成本。

    METHOD OF PRODUCING XYLYLENEDIAMINE
    5.
    发明申请
    METHOD OF PRODUCING XYLYLENEDIAMINE 有权
    生产XYLYLEDEDIAMINE的方法

    公开(公告)号:US20070270613A1

    公开(公告)日:2007-11-22

    申请号:US11749787

    申请日:2007-05-17

    IPC分类号: C07C209/44

    CPC分类号: C07C209/48 C07C211/27

    摘要: 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.

    摘要翻译: 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。

    Method of producing xylylenediamine
    6.
    发明授权
    Method of producing xylylenediamine 有权
    产生苯二甲胺的方法

    公开(公告)号:US07465832B2

    公开(公告)日:2008-12-16

    申请号:US11749787

    申请日:2007-05-17

    IPC分类号: C07C209/48

    CPC分类号: C07C209/48 C07C211/27

    摘要: 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.

    摘要翻译: 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。

    Production process for high purity tricyclo-[5.2.1.02,6]decane-2-carboxylic acid ester
    7.
    发明授权
    Production process for high purity tricyclo-[5.2.1.02,6]decane-2-carboxylic acid ester 有权
    高纯度三环[5.2.1.02,6]癸烷-2-羧酸酯的制备方法

    公开(公告)号:US07253300B2

    公开(公告)日:2007-08-07

    申请号:US10942880

    申请日:2004-09-17

    IPC分类号: C07C67/36 C07C69/74

    摘要: In a process for producing tricyclo[5.2.1.02,6]decane-2-carboxylic acid ester by reacting tricyclo[5.2.1.02,6]deca-3-ene with carbon monoxide and alcohol in the presence of HF, carried out separately are (a) a step in which tricyclo[5.2.1.02,6]deca-3-ene is reacted with carbon monoxide to produce acyl fluoride and (b) a step in which acyl fluoride obtained in the step described above is reacted with alcohol to produce an ester. Also, the reaction conditions at the step (a) described above are selected or a step for carrying out isomerization reaction of tricyclo[5.2.1.02,6]decane-2-carboxylic fluoride obtained at the step (a) is interposed between the step (a) and the step (b). Further, the crude product of tricyclo[5.2.1.02,6]decane-2-carboxylic acid ester thus obtained is subjected to contact treatment with specific glycol in the presence of an acid catalyst and then distilled.

    摘要翻译: 在三环[5.2.1.0 2,6]癸烷-3-羧酸酯的三辛酸[5.2.1.0 2,6]癸烷-2-羧酸酯的制备方法中, 在一种HF存在下与一氧化碳和乙醇一起使用,分别进行(a)将三环[5.2.1.0 2,6]癸-3-烯与一氧化碳反应的步骤 产生酰氟和(b)使上述步骤中得到的酰基氟与醇反应生成酯的步骤。 此外,选择上述步骤(a)中的反应条件或在步骤(a)中获得的三环[5.2.1.0 2,6]癸烷-2-羧酸氟化物进行异构化反应的步骤 (a)介于步骤(a)和步骤(b)之间。 此外,将由此获得的三环[5.2.1.0 2,6]癸烷-2-羧酸酯的粗产物在酸催化剂存在下用特定的二醇进行接触处理,然后蒸馏。

    Production of carboxylic acids or carboxylic acid esters
    8.
    发明申请
    Production of carboxylic acids or carboxylic acid esters 有权
    制备羧酸或羧酸酯

    公开(公告)号:US20060205970A1

    公开(公告)日:2006-09-14

    申请号:US11370918

    申请日:2006-03-09

    IPC分类号: C07C69/76

    摘要: In the production of carboxylic acid or carboxylic acid ester, a reaction product containing the carboxylic acid or carboxylic acid ester which has been produced by the reaction of an olefin, carbon monoxide, and water or an alcohol in the presence of HF is heat-treated in the presence of an acid catalyst and an acid adsorbent. By the heat treatment, the contamination of the carboxylic acid or carboxylic acid ester with HF and/or fluorine compounds such as acyl fluorides can be prevented, to enable the stable production of a high quality and high purity carboxylic acid or carboxylic acid ester without causing troubles such as corrosion of apparatus.

    摘要翻译: 在羧酸或羧酸酯的制造中,通过在HF存在下通过烯烃,一氧化碳和水或醇反应制备的含有羧酸或羧酸酯的反应产物进行热处理 在酸催化剂和酸吸附剂的存在下。 通过热处理,可以防止羧酸或羧酸酯与HF和/或氟化合物如酰基氟化物的污染,使得能够稳定地生产高质量和高纯度的羧酸或羧酸酯而不引起 诸如设备腐蚀等问题。

    Polyol ester based-lubricant
    9.
    发明授权
    Polyol ester based-lubricant 失效
    多元醇酯基润滑剂

    公开(公告)号:US5716916A

    公开(公告)日:1998-02-10

    申请号:US835881

    申请日:1997-04-08

    摘要: A polyol ester-based lubricant comprising a polyol ester (A) and a polyol ester (B); the polyol ester (A) comprising an ester of a neopentyl polyol and an acid residue of carbon number of 6-17, in which alpha-carbon in the acid residue of the polyol ester is tertiarily branched, and when alkyl groups having 4 or more carbon atoms are bonded to the alpha-carbon, the alkyl groups are branched, and the polyol ester (B) comprising an ester of a neopentyl polyol and an acid residue of carbon number of 6-17, in which alpha-carbon in the acid residue of the polyol ester is secondarily or tertiarily branched and alkyl groups bonded to the alpha-carbon are straight is provided. This polyol ester-based lubricant has high performance, as demonstrated by high compatibility with substitute fluorocarbons in a kinematic viscosity range of 28 to 40 cst at 40.degree. C., excellent hydrolysis resistance, and a low pour point.

    摘要翻译: 包含多元醇酯(A)和多元醇酯(B)的多元醇酯基润滑剂; 包含新戊基多元醇的酯和碳原子数为6-17的酸残基的多元醇酯(A),其中多元醇酯的酸残基中的α-碳是三分支的,当烷基具有4个或更多个 碳原子与α-碳键合,烷基是支链的,并且包含新戊基多元醇的酯和碳原子数为6-17的酸残基的多元醇酯(B),其中酸中的α-碳 提供多元醇酯的残基是二次或三次支化的,并且与α-碳键合的烷基是直链的。 这种多元醇酯基润滑剂具有高性能,如在40℃下运动粘度范围为28至40cst,优异的耐水解性和低倾点的替代碳氟化合物的高相容性所证明的。

    Process for producing 1,3-naphthalenedicarboxylic acid
    10.
    发明申请
    Process for producing 1,3-naphthalenedicarboxylic acid 审中-公开
    1,3-萘二甲酸的制备方法

    公开(公告)号:US20050187403A1

    公开(公告)日:2005-08-25

    申请号:US11063970

    申请日:2005-02-24

    CPC分类号: C07C51/265 C07C63/38

    摘要: 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.

    摘要翻译: 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。