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    PROCESS FOR REGENERATING MONOLITH HYDROGENATION CATALYTIC REACTOR
    65.
    发明专利
    PROCESS FOR REGENERATING MONOLITH HYDROGENATION CATALYTIC REACTOR 审中-公开

    公开(公告)号：JP2003200064A

    公开(公告)日：2003-07-15

    申请号：JP2002325120

    申请日：2002-11-08

    申请人： AIR PROD & CHEM

    发明人： WELP KEITH ALLEN ,  CARTOLANO ANTHONY ROCCO ,  WILHELM FREDERICK CARL ,  MAZZAFRO WILLIAM JOSEPH

    IPC分类号： B01J38/18 ,  B01J23/96 ,  B01J38/02 ,  B01J38/10 ,  C07B61/00 ,  C07C209/36 ,  C07C211/50

    摘要： PROBLEM TO BE SOLVED: To provide a process to regenerate a monolith catalytic reactor employed in a liquid phase hydrogenation reaction, particularly used for those kinds of reactions involving nitroaromatic compounds. SOLUTION: Catalytic metals in the monolith catalytic reactor is deactivated by carbonaceous or deactivating byproducts and must be regenerated to extend the catalyst service life and reduce cost. The regeneration process involves two steps: initially passing an oxidizing gaseous mixture through the monolith catalytic reactor at an elevated temperature for a time sufficient to remove the carbonaceous and the deactivating byproducts and then passing a reducing gas through the monolith catalytic reactor previously exposed to the oxidizing gas under conditions for reducing the catalytic metals to their reduced states. COPYRIGHT: (C)2003,JPO

    METHOD FOR PRODUCING 1,5-DIAMINONAPHTHALENES
    66.
    发明专利
    METHOD FOR PRODUCING 1,5-DIAMINONAPHTHALENES 审中-公开

    公开(公告)号：JP2003155267A

    公开(公告)日：2003-05-27

    申请号：JP2002128253

    申请日：2002-04-30

    申请人： MITSUI CHEMICALS INC

    发明人： INOKI SATORU ,  MOTOYAMA YOSHIO

    IPC分类号： C07C209/36 ,  C07B61/00 ,  C07C201/12 ,  C07C205/45 ,  C07C205/56 ,  C07C211/57 ,  C07C253/30 ,  C07C255/35

    摘要： PROBLEM TO BE SOLVED: To provide a method for producing 1,5-diaminonaphthalenes, capable of economically excellently conducting their production, by developing a new route through which the 1,5-diaminonaphthalenes are selectively produced without being accompanied with formation of their isomers. SOLUTION: This method for producing the 1,5-diaminonaphthalene comprises reacting an o-alkylnitrobenzene compound with a vinyl compound in the presence of a base so as to obtain an aromatic nitro compound. The aromatic nitro compound is subjected to ring closure in the presence of a strong acid so as to obtain a 5-nitro-1-tetralone compound. The 5-nitro-1-tetralone compound is reacted with an amine compound, then reduced and aromatized, so that the 1,5-diaminonaphthalene is produced.

    Method for producing 1,5-diaminonaphthalene
    67.
    发明专利
    Method for producing 1,5-diaminonaphthalene 审中-公开
    生产1,5-二氨基萘甲酸的方法

    公开(公告)号：JP2003081921A

    公开(公告)日：2003-03-19

    申请号：JP2001275726

    申请日：2001-09-11

    申请人： Mitsui Chemicals Inc ,  三井化学株式会社

    发明人： MOTOYAMA YOSHIO ,  INOKI SATORU

    IPC分类号： C07C209/36 ,  C07B61/00 ,  C07C211/57

    摘要： PROBLEM TO BE SOLVED: To reduce wastes in producing a 1,5-diaminonaphthalene from an ortho-alkylnitrobenzene and a vinyl compound as raw materials.
    SOLUTION: In this method for producing the 1,5-diaminonaphthalene through a 4-(2-nitrobenzene)propane and a 5-nitro-1-tetralone an acid obtained in another process is used for the neutralization treatment of a base used for the reaction. Thereby, wastes in producing the 1,5-diaminonaphthalene compound can be reduced.
    COPYRIGHT: (C)2003,JPO

    摘要翻译： 要解决的问题：为了减少从原烷基硝基苯和乙烯基化合物作为原料制备1,5-二氨基萘的废物。 解决方案：在通过4-（2-硝基苯）丙烷和5-硝基-1-四氢萘酮生产1,5-二氨基萘的方法中，使用另一方法获得的酸用于中和处理用于 反应。 因此，可以减少生成1,5-二氨基萘化合物的废物。

    69.
    发明专利
    失效

    公开(公告)号：JP3339859B2

    公开(公告)日：2002-10-28

    申请号：JP50053194

    申请日：1993-04-26

    IPC分类号： C07C209/50 ,  C07C209/36 ,  C07C209/62 ,  C07C211/50 ,  C07C211/51 ,  C07C211/52 ,  C07C231/08 ,  C07C231/12 ,  C07C233/12 ,  C07C233/56 ,  C07C233/64 ,  C07C233/65 ,  C07C233/66 ,  C07C233/80 ,  C07C235/56 ,  C07C237/40

    摘要： A process for preparing p-nitroaromatic amides is provided which comprises contacting an amide and nitrobenzene in the presence of a suitable solvent system, and reacting the amide and nitrobenzene in the presence of a suitable base and a controlled amount of protic material at a suitable temperature in a confined reaction zone. The p-nitroaromatic amides of the invention can be reduced to p-aminoaromatic amides. In one embodiment, the p-aminoaromatic amide is further reacted with ammonia under conditions which produce the corresponding p-aminoaromatic amine and the amide starting material which can be recycled or with water in the presence of a suitable basic or acidic catalyst under conditions which produce the corresponding p-aminoaromatic amine and the acid or salt thereof corresponding to the amide starting material. In another embodiment, the p-aminoaromatic amine is reductively alkylated to produce alkylated p-aminoaromatic amine. The p-nitroaromatic amide can be reacted with ammonia under conditions which produce the corresponding p-nitroaromatic amine and the amide starting material which can be recycled or with water in the presence of a suitable basic or acidic catalyst under conditions which produce the corresponding p-nitroaromatic amine and the acid or salt thereof corresponding to the amide starting material. In one embodiment, the p-nitroaromatic amine is reduced to produce p-aminoaromatic amine. In another embodiment, the p-aminoaromatic amine is reductively alkylated to produce alkylated p-aminoaromatic amine. In another embodiment, the p-nitroaromatic amine is reductively alkylated to produce p-aminoaromatic amine.