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13 条记录 (耗时 0.017 秒)

    Process for making hydrogen peroxide
    1.
    发明授权
    Process for making hydrogen peroxide 失效
    制造过氧化氢的方法

    公开(公告)号：US5104635A

    公开(公告)日：1992-04-14

    申请号：US575649

    申请日：1990-08-31

    申请人： Toshiaki Kanada ,  Kazunori Nagai ,  Takanari Nawata

    发明人： Toshiaki Kanada ,  Kazunori Nagai ,  Takanari Nawata

    IPC分类号： C01B15/029

    CPC分类号： C01B15/029

    摘要： A process for making hydrogen peroxide by catalytically reacting oxygen with hydrogen in a liquid reaction medium, which comprises(a) filling a reactor with a liquid reaction medium containing a catalyst,(b) dissolving oxygen and hydrogen in the liquid reaction medium by contacting the gases separately and simultaneously with the liquid reaction medium in the reactor,(c) thus forming hydrogen peroxide in the liquid reaction medium containing the catalyst,(d) while maintaining the reactor at such condition that a gaseous phase containing a combination of both oxygen and hydrogen is substantially absent during the reaction, and(e) separating the catalyst from the resulting reaction mixture containing hydrogen peroxide.

    Process for preparing benzophenone-azines
    2.
    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。

    Oxygen absorbent
    4.
    发明授权
    Oxygen absorbent 失效
    吸氧剂

    公开(公告)号：US4192773A

    公开(公告)日：1980-03-11

    申请号：US934489

    申请日：1978-08-17

    申请人： Yoshio Yoshikawa ,  Takanari Nawata ,  Akira Amemiya ,  Toshio Komatsu ,  Yoshiaki Inoue ,  Megumu Yuyama

    发明人： Yoshio Yoshikawa ,  Takanari Nawata ,  Akira Amemiya ,  Toshio Komatsu ,  Yoshiaki Inoue ,  Megumu Yuyama

    IPC分类号： A23L3/34 ,  A23L3/3436 ,  B01D53/14 ,  B01J20/02 ,  B01J31/26 ,  B01J27/08

    CPC分类号： B01D53/1493 ,  A23L3/3436

    摘要： An oxygen absorbent comprising (a) metal halide-coated metal powder having at least one metal halide coated on the surface of at least one metal powder, the amount of metal halide coated being in the range of from about 0.001 part to about 10 parts by weight per 100 parts by weight of the metal powder, and the water content of the metal halide-coated metal powder being less than 1% by weight on the basis of total weight of the metal halide-coated metal powder an (b) a water-containing material and a process for producing the same are disclosed.

    摘要翻译： 一种氧吸收剂，其包含（a）金属卤化物涂覆的金属粉末，其具有涂覆在至少一种金属粉末的表面上的至少一种金属卤化物，涂覆的金属卤化物的量在约0.001份至约10份的范围内， 重量每100重量份的金属粉末，金属卤化物涂覆的金属粉末的水含量基于金属卤化物涂覆的金属粉末的总重量小于1重量％a（b）水 并且公开了其制造方法。

    Process for producing benzophenone-azine
    5.
    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。

    Oxygen absorbent-containing bag
    7.
    发明授权
    Oxygen absorbent-containing bag 失效
    含氧吸收剂袋

    公开(公告)号：US4332845A

    公开(公告)日：1982-06-01

    申请号：US217413

    申请日：1980-12-11

    申请人： Takanari Nawata ,  Toshio Komatsu ,  Yukio Kondoh

    发明人： Takanari Nawata ,  Toshio Komatsu ,  Yukio Kondoh

    IPC分类号： A23L3/3436 ,  B32B27/12 ,  B65D65/40 ,  B65D81/26 ,  B32B3/10

    CPC分类号： B65D81/268 ,  A23L3/3436 ,  B32B27/12 ,  Y10T428/24322

    摘要： At least part of the material constituting the bag in which an oxygen absorbent is sealed is composed of a laminated sheet in which a gas permeable sheet is laminated to one or both sides of a microporous film to provide a lamination the two outside layers of which have different softening points, the layer having a lower softening point constituting the inner surface of the bag is disclosed. The bag of this invention can be produced at a high speed by using an ordinary heat-seal machine.

    摘要翻译： 构成密封有氧吸收剂的袋的材料的至少一部分由层叠片材构成，其中透气片层压到微多孔膜的一侧或两侧以提供层压，其两个外层具有 公开了不同的软化点，具有构成袋的内表面的软化点较低的层。 本发明的袋可以通过普通的热封机高速制造。

    Process for preparing hydrazine hydrohalogenide
    10.
    发明授权
    Process for preparing hydrazine hydrohalogenide 失效
    制备氢卤化肼的方法

    公开(公告)号：US4628119A

    公开(公告)日：1986-12-09

    申请号：US702553

    申请日：1985-02-19

    申请人： Takanari Nawata ,  Shuzabu Sakaguchi ,  Osamu Aoki

    发明人： Takanari Nawata ,  Shuzabu Sakaguchi ,  Osamu Aoki

    IPC分类号： B01J23/00 ,  B01J27/122 ,  C01B21/16 ,  C07C109/04

    CPC分类号： C07C251/88 ,  C01B21/16 ,  Y02P20/584

    摘要： A process for preparing hydrazine hydrohalogenide is disclosed. The process comprises the steps of:(a) oxidizing benzophenone-imines with molecular oxygen in the presence of a copper halide catalyst to produce benzophenone-azines;(b) contacting the oxidation reaction mixture with an aqueous solution containing a hydrohalogenic acid thereby hydrolyzing the benzophenone-azines to produce a hydrazine hydrohalogenide and, simultaneously, extracting and removing the catalyst with the hydrohalogenic acid-containing aqueous solution to obtain an aqueous solution containing the hydrazine hydrohalogenide and the catalyst;(c) separating the aqueous solution and adjusting the solution to a pH of from 3 to 7 with an alkali;(d) contacting the aqueous solution with benzophenone-imines to extract the catalyst;(e) separating the catalyst-containing benzophenone-imines solution from the aqueous solution containing the hydrazine hydrohalogenide to recover the hydrazine hydrohalogenide and to recycle the catalyst-containing benzophenone-imines solution to step (a).The process is advantageous in that the catalyst is easily recovered for reuse.

    摘要翻译： 公开了一种制备氢卤酸肼的方法。 该方法包括以下步骤：（a）在卤化铜催化剂存在下用分子氧氧化二苯甲酮 - 亚胺，生成二苯甲酮 - 吖嗪; （b）使氧化反应混合物与含有氢卤酸的水溶液接触，从而水解二苯甲酮 - 吖嗪以产生氢卤酸肼，同时用含氢卤酸的水溶液萃取和除去催化剂，得到含有 肼氢卤化物和催化剂; （c）用碱分离水溶液并将溶液调节至3至7的pH; （d）使该水溶液与二苯甲酮 - 亚胺接触以提取催化剂; （e）从含有氢卤化肼的水溶液中分离含催化剂的二苯甲酮 - 亚胺溶液以回收氢卤酸肼，并将含有催化剂的二苯甲酮 - 亚胺溶液再循环到步骤（a）。 该方法的优点在于催化剂容易回收再利用。