Process for production of polyalkyl-substituted aromatic aldehyde
    11.
    发明授权
    Process for production of polyalkyl-substituted aromatic aldehyde 有权
    制备聚烷基取代芳醛的方法

    公开(公告)号:US06881866B2

    公开(公告)日:2005-04-19

    申请号:US10615297

    申请日:2003-07-09

    CPC分类号: C07C45/49 C07C47/542

    摘要: In the process of the present invention, a polyalkyl-substituted aromatic aldehyde is produced by the formylation of a corresponding polyalkyl-substituted aromatic compound with carbon monoxide in the presence of hydrogen fluoride/boron trifluoride catalyst. By limiting the amount of hydrogen fluoride to a specific range, the formylation rapidly proceeds under mild conditions without causing the precipitation of solid matters even when the starting polyalkyl-substituted aromatic compound has alkyl groups on both the carbon atoms adjacent to the site to be formylated.

    摘要翻译: 在本发明的方法中,通过在氟化氢/三氟化硼催化剂的存在下,用一氧化碳将相应的聚烷基取代的芳族化合物甲酰化来制备聚烷基取代的芳族醛。 通过将氟化氢的量限制到特定范围,甲酰化在温和条件下快速进行,而不引起固体物质的沉淀,即使起始多烷基取代的芳族化合物在与要甲酰化的位点相邻的碳原子上具有烷基 。

    METHOD OF PRODUCING XYLYLENEDIAMINE
    12.
    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。

    Polyol ester based-lubricant
    13.
    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。

    Production of xylylenediamines
    14.
    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
    15.
    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
    16.
    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
    17.
    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。

    Process for producing monoalkenyl aromatic hydrocarbon compound
    19.
    发明授权
    Process for producing monoalkenyl aromatic hydrocarbon compound 失效
    单链烯基芳烃化合物的制备方法

    公开(公告)号:US5527977A

    公开(公告)日:1996-06-18

    申请号:US266145

    申请日:1994-06-27

    IPC分类号: B01J23/04 C07C2/72 C07C15/44

    摘要: Their is disclosed a process for producing a monoalkenyl aromatic hydrocarbon compound (e.g. 5-(o-tolyl)-2-pentene) which comprises the steps of alkenylating a side chain of an aromatic hydrocarbon compound having at lease one hydrogen atom bonded to .alpha.-position of the side chain (e.g. alkylbenzene) by the use of a conjugated diene having 4 to 5 carbon atoms (e.g. 1-3 butadiene) in the presence an alkali metal-based catalyst supported on a carrier; removing at least part of the catalyst from the resultant reaction product by separating the same; inactivating and optionally removing the catalyst contained in the reaction product; and thereafter distilling the reaction produce in liquid form to separate and recover the objective monoalkenyl aromatic hydrocarbon compound. By virtue of using the above specific method, the process can prevent the change in quality and properly of the objective product even during atmospheric distillation, produce the objective product with high purity in high recovery race and operate a distillation column during a long stable period of time.

    摘要翻译: 公开了一种制备单链烯基芳族烃化合物(例如5-(邻甲苯基)-2-戊烯)的方法,该方法包括使具有至少一个氢原子的芳族烃化合物的侧链链烯基化的步骤, 在负载在载体上的碱金属类催化剂存在下,通过使用具有4至5个碳原子的共轭二烯(例如1-3个丁二烯),侧链(例如烷基苯)的位置; 通过分离其从所得反应产物中除去至少一部分催化剂; 灭活和任选地除去反应产物中所含的催化剂; 然后以液体形式蒸馏反应产物以分离和回收目标单链烯基芳族烃化合物。 通过使用上述具体方法,该方法即使在常压蒸馏中也可以防止目标产物的质量变化和适当的改变,在高回收率种族中生产高纯度的目的产物,并在长时间稳定的时间段内操作蒸馏塔 时间。

    Process for producing a monoalkenyl aromatic hydrocarbon compound
    20.
    发明授权
    Process for producing a monoalkenyl aromatic hydrocarbon compound 失效
    单链烯基芳烃化合物的制造方法

    公开(公告)号:US5436381A

    公开(公告)日:1995-07-25

    申请号:US170495

    申请日:1993-12-20

    摘要: There is disclosed a process for producing a monoalkenylbenzene which comprises alkenylating a side chain of an aromatic hydrocarbon compound having at least one hydrogen atom bonded at .alpha.-position of the side chain (such as xylene) with a conjugated diene having 4 or 5 carbon atoms (such as butadiene) in the presence of a catalyst produced by calcining the mixture of potassium hydroxide and aluminum hydroxide and then heat treating the calcined product together with metallic sodium in an atmosphere of an inert gas. According to the aforesaid process, an industrially useful monoalkenylbenzene can be produced in high yield at a low cost with enhanced safety.

    摘要翻译: 公开了一种单链烯基苯的制备方法,该方法包括将具有至少一个在侧链(例如二甲苯)的α位键合的氢原子的芳族烃化合物的侧链与具有4或5个碳原子的共轭二烯链烯基化 (例如丁二烯)在通过煅烧氢氧化钾和氢氧化铝的混合物产生的催化剂存在下,然后在惰性气体气氛中与金属钠一起热处理煅烧产物。 根据上述方法,可以低成本,高安全性地以高产率生产工业上有用的单烯基苯。