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    Process for preparing benzophenone-azines
    1.
    发明授权
    Process for preparing benzophenone-azines 失效
    制备二苯甲酮吖嗪的方法

    公开(公告)号：US4727190A

    公开(公告)日：1988-02-23

    申请号：US918656

    申请日：1986-10-14

    申请人： Takanari Nawata ,  Shuzabu Sakaguchi ,  Toshiaki Kohzaki ,  Osamu Aoki ,  Norio Takeda ,  Yoshiyuki Aoki ,  Masafumi Shimpo

    发明人： Takanari Nawata ,  Shuzabu Sakaguchi ,  Toshiaki Kohzaki ,  Osamu Aoki ,  Norio Takeda ,  Yoshiyuki Aoki ,  Masafumi Shimpo

    IPC分类号： C09B17/00 ,  B01J27/122 ,  C01B21/16 ,  C07B61/00 ,  C07C249/16 ,  C07C251/88 ,  C07C109/16

    CPC分类号： C07C251/88 ,  C01B21/16

    摘要： A process for continuously preparing benzophenone-azines comprising oxidizing benzophenone-imines with molecular oxygen or a molecular oxygen-containing gas in the presence of a copper halide catalyst is disclosed. The oxidation reaction is carried out in a multistage system under an oxygen partial pressure gradually decreasing from the former stage to the latter stage and at a conversion gradually decreasing from the former stage to the latter stage, while controlling the conversion so that the molar ratio of the benzophenone-imines to the copper halide in the final stage be maintained at 1 or more. By the process, the continuous reaction can stably be performed at a high conversion of the benzophenone-imines without involving insolubilization and sedimentation of the catalyst.

    摘要翻译： 公开了一种连续制备二苯甲酮吖嗪的方法，包括在卤化铜催化剂存在下用分子氧或含分子氧气体氧化二苯甲酮 - 亚胺。 氧化反应在多级体系​​中，在从前一阶段到后一阶段逐渐降低的氧分压下进行，并且转化率从前一阶段逐渐降低到后一阶段，同时控制转化率，使得 在最后阶段将二苯甲酮 - 亚胺与卤化铜保持在1以上。 通过该方法，连续反应可以稳定地在二苯甲酮 - 亚胺的高转化率下进行，而不会引起催化剂的不溶解和沉淀。

    Process for producing benzophenone-azine
    2.
    发明授权
    Process for producing benzophenone-azine 失效
    二苯甲酮吖嗪的制备方法

    公开(公告)号：US4751326A

    公开(公告)日：1988-06-14

    申请号：US684419

    申请日：1984-12-20

    申请人： Takanari Nawata ,  Shuzabu Sakaguchi ,  Toshiaki Kohzaki ,  Osamu Aoki ,  Norio Takeda ,  Masafumi Shimpo

    发明人： Takanari Nawata ,  Shuzabu Sakaguchi ,  Toshiaki Kohzaki ,  Osamu Aoki ,  Norio Takeda ,  Masafumi Shimpo

    IPC分类号： C07B61/00 ,  B01J27/00 ,  B01J27/32 ,  C07C67/00 ,  C07C241/00 ,  C07C251/88 ,  C07C109/04

    CPC分类号： C07C251/88 ,  B01J27/32 ,  Y02P20/584

    摘要： An improved process for producing benzophenone-azine in which a catalyst can be removed, recovered and recycled is disclosed. The process comprises the steps of:(a) oxidizing benzophenone-imine with molecular oxygen in the presence of cuprous chloride catalyst to produce an oxidation reaction mixture containing benzophenone-azine;(b) contacting the oxidation reaction mixture obtained in step (a) with an aqueous solution containing ammonium chloride and hydrochloric acid to decompose the remaining benzophenone-imine substantially without causing decomposition of the produced benzophenone-azine and simultaneously to extract the catalyst from the oxidation reaction mixture;(c) separating the oxidation reaction mixture containing benzophenone-azine after the extraction in step (b) to recover benzophenone-azine as a solution;(d) neutralizing the catalyst-containing aqueous solution separated after the extraction step (b) with ammonia and then contacting the neutralized catalyst-containing aqueous solution with benzophenone-imine to extract the catalyst into benzophenone-imine; and(e) separating the benzophenone-imine solution containing the catalyst obtained after extraction in step (d) from the aqueous layer and recycling said solution to step (a) to reuse as a catalyst for step (a), without isolating the catalyst from said benzophenone-imine solution.

    摘要翻译： 公开了可以除去，回收和回收催化剂的二苯甲酮 - 吖嗪的改进方法。 该方法包括以下步骤：（a）在氯化亚铜催化剂存在下用分子氧氧化二苯甲酮 - 亚胺以产生含有二苯甲酮 - 吖嗪的氧化反应混合物; （b）将步骤（a）中获得的氧化反应混合物与含有氯化铵和盐酸的水溶液接触，基本上分解剩余的二苯甲酮 - 亚胺，而不会引起生成的二苯甲酮 - 吖嗪的分解，同时从催化剂中提取催化剂 反应混合物; （c）在步骤（b）中提取后分离含有二苯甲酮 - 吖嗪的氧化反应混合物，以二苯甲酮 - 吖嗪为溶液回收; （d）用氨中和提取步骤（b）后分离的含催化剂的水溶液，然后使中和的含有催化剂的水溶液与二苯甲酮 - 亚胺接触，将催化剂萃取到二苯甲酮 - 亚胺中; 和（e）将步骤（d）中提取后得到的含有催化剂的二苯甲酮 - 亚胺溶液从水层中分离出来，并将所述溶液再循环到步骤（a）中以再利用作为步骤（a）的催化剂，而不将催化剂从 称二苯甲酮 - 亚胺溶液。

    Process for preparing carboxypolysaccharide
    3.
    发明授权
    Process for preparing carboxypolysaccharide 失效
    羧基多糖的制备方法

    公开(公告)号：US6130328A

    公开(公告)日：2000-10-10

    申请号：US186465

    申请日：1998-11-05

    申请人： Masafumi Shimpo ,  Hisashi Sakaitani ,  Hidechika Wakabayashi ,  Toshiaki Kozaki

    发明人： Masafumi Shimpo ,  Hisashi Sakaitani ,  Hidechika Wakabayashi ,  Toshiaki Kozaki

    IPC分类号： C08B15/02 ,  C08B31/18 ,  C08B37/00 ,  C07C333/00 ,  C08B33/08 ,  C08B35/08

    CPC分类号： C08B37/0045 ,  C08B15/02 ,  C08B31/18

    摘要： There is herein disclosed a process for preparing a carboxypolysaccharide by oxidizing a polysaccharide with a combination of a transition metal compound and an oxidizing agent, said process comprising the step of separating the transition metal from a reaction mixture with a chelating agent. According to the present invention, the transition metal can be removed to a low concentration of less than 100 ppm from an aqueous solution including the transition metal and the tricarboxypolysaccharide. The process of the present invention is important to reduce the loss of a transition metal catalyst such as the ruthenium catalyst and to industrially manufacture a purified tricarboxypolysaccharide.

    摘要翻译： 本文公开了通过用过渡金属化合物和氧化剂的组合氧化多糖来制备羧基多糖的方法，所述方法包括用螯合剂从反应混合物中分离过渡金属的步骤。 根据本发明，可以从包含过渡金属和三羧基多糖的水溶液中除去过渡金属至低于100ppm的低浓度。 本发明的方法对于减少诸如钌催化剂的过渡金属催化剂的损失以及在工业上制造纯化的三羧基多糖是重要的。

    Process for producing thiourea dioxide
    5.
    发明授权
    Process for producing thiourea dioxide 失效
    二氧化硫脲生产工艺

    公开(公告)号：US5958184A

    公开(公告)日：1999-09-28

    申请号：US15627

    申请日：1998-01-29

    申请人： Toshiaki Kanada ,  Seikyu Jinnouchi ,  Masafumi Shimpo ,  Tetsuo Koshitsuka ,  Akiko Kimura

    发明人： Toshiaki Kanada ,  Seikyu Jinnouchi ,  Masafumi Shimpo ,  Tetsuo Koshitsuka ,  Akiko Kimura

    IPC分类号： D21C9/10 ,  D21C9/16

    CPC分类号： D21C9/16 ,  D21C9/1084

    摘要： A process for producing a thiourea dioxide fluid by mixing thiourea and a peroxide, or thiourea, a peroxide and a reaction catalyst, or thiourea, a peroxide, a reaction catalyst and a chelating agent, in the absence or presence of pulp and a process for bleaching pulp by the use of the thiourea dioxide fluid produced by the above process economically advantageously with a small chemicals loss and by small consumption of energy.

    摘要翻译： 在不存在或存在纸浆的情况下，通过混合硫脲和过氧化物或硫脲，过氧化物和反应催化剂或硫脲，过氧化物，反应催化剂和螯合剂来制备二氧化硫脲二氧化物流体的方法， 通过使用由上述方法生产的二氧化硫脲液体经济地有利地具有小的化学品损失和少量的能量漂白纸浆。

    Moth-proofing method using trioxane as sole active
    7.
    发明授权
    Moth-proofing method using trioxane as sole active 失效
    使用三恶烷作为唯一活性的防蛀方法

    公开(公告)号：US5202127A

    公开(公告)日：1993-04-13

    申请号：US816544

    申请日：1991-12-30

    申请人： Mutsuhiko Takeda ,  Minoru Kakuda ,  Masafumi Shimpo

    发明人： Mutsuhiko Takeda ,  Minoru Kakuda ,  Masafumi Shimpo

    IPC分类号： A01N43/32

    CPC分类号： A01N43/32

    摘要： An insect-proofing agent comprising 1,3,5-trioxane as an active ingredient is disclosed. This insect-proofing agent has a high insect-proofing action and gives no irritating odor, and the insect-proofing agent is not toxic to human bodies and has a high safety. Furthermore, this insect-proofing agent causes no discoloration in metallic substance such as silver thread, gold threads and spangles used for clothing decoration. This insect-proofing agent is effectively applied in the form of a solid preparation, an aqueous solution or an organic solvent solution.

    摘要翻译： 公开了包含1,3,5-三恶烷作为活性成分的防虫剂。 该防虫剂具有高的防虫作用，不产生刺激性气味，防虫剂对人体无毒性，安全性高。 此外，该防虫剂在用于衣服装饰的银线，金线和花边等金属物质中不会变色。 该防虫剂以固体制剂，水溶液或有机溶剂溶液的形式有效地应用。