公开(公告)号：US3985806A

公开(公告)日：1976-10-12

申请号：US279309

申请日：1972-08-10

申请人： Nobuyoshi Hashimoto ,  Kiyotaka Yoshimura ,  Shiro Asano ,  Tadatoshi Honda ,  Ryozi Tsuchiya

发明人： Nobuyoshi Hashimoto ,  Kiyotaka Yoshimura ,  Shiro Asano ,  Tadatoshi Honda ,  Ryozi Tsuchiya

IPC分类号： B01J8/20 ,  B01J8/22 ,  C07C20060101 ,  C07C67/00 ,  C07C231/00 ,  C07C231/06 ,  C07C233/09 ,  C07C103/133

CPC分类号： B01J23/72

摘要： A process for continuously manufacturing acrylamide by hydrating acrylonitrile in the presence of a free metallic copper catalyst, characterized in that a reactor is employed, which is internally partitioned into a catalyst slurry circulating section and a catalyst precipitating section, and that raw materials and supplementary catalyst are supplied continuously into the reactor and at the same time the clear reaction liquid and a portion of the catalyst are continuously taken out of the reactor so that the properties of the catalyst are maintained constant.

摘要翻译： 一种在游离金属铜催化剂存在下通过水合丙烯腈连续制造丙烯酰胺的方法，其特征在于使用反应器，其内部分隔成催化剂淤浆循环段和催化剂沉淀段，原料和辅助催化剂 连续供入反应器，同时将澄清反应液和一部分催化剂连续地从反应器中取出，使得催化剂的性质保持恒定。

公开(公告)号：US3941837A

公开(公告)日：1976-03-02

申请号：US473551

申请日：1974-05-28

申请人： Shiro Asano ,  Kiyotaka Yoshimura ,  Masao Hashimoto

发明人： Shiro Asano ,  Kiyotaka Yoshimura ,  Masao Hashimoto

IPC分类号： C07C231/06 ,  C07C20060101 ,  C07C67/00 ,  C07C231/00 ,  C07C231/22 ,  C07C231/24 ,  C07C233/09 ,  C07C103/08

CPC分类号： B01J23/72

摘要： A method of purifying an aqueous solution of acrylamide, which has been formed by reacting acrylonitrile with water in the presences of the metallic copper catalyst, and which contains cuprous ions, comprising treating said aqueous solution in a reaction zone which is substantially free of an oxygen containing gas or liquid.

摘要翻译： 一种净化丙烯酰胺水溶液的方法，该方法是在金属铜催化剂的存在下，使丙烯腈与水反应形成的并含有亚铜离子的方法，包括在基本上不含氧的反应区中处理所述水溶液 含气体或液体。

公开(公告)号：US5215019A

公开(公告)日：1993-06-01

申请号：US892645

申请日：1992-06-02

申请人： Eiichiro Kinoshita ,  Shiro Asano ,  Tamaki Kubo

发明人： Eiichiro Kinoshita ,  Shiro Asano ,  Tamaki Kubo

IPC分类号： A01C11/02

CPC分类号： A01C11/025

摘要： A transplanting machine or equipment for taking seedlings of vegetables or the like from a seedling table 13 and planting them in a field. The machine has a transmission mechanism including a transmission case, a first rotary case (32) driven by a driving device and a second rotary case (33) which rotates reversely to the first rotary case. The rotary cases are linearly extended in a vertical direction while they overlap in contracted form in a longitudinal or horizontal direction. A seedling transplanting tool is carried by the second rotary case. The seedlings are easily removed from a seedling table located at a high position on the machine and transplanted without extending the length of the transplanting equipment in the longitudinal or horizontal direction.

摘要翻译： 一种用于从幼苗台13取蔬菜等的幼苗的移栽机器或设备，并将其种植在野外。 机器具有变速机构，该变速机构包括变速箱，由驱动装置驱动的第一旋转壳体（32）和与第一旋转壳体相反地旋转的第二旋转壳体（33）。 旋转壳​​体在垂直方向上线性地延伸，同时它们在纵向或水平方向上以收缩的形式重叠。 第二旋转壳体承载幼苗移栽工具。 幼苗容易从位于机器上高位置的幼苗台移除，并且移植而不延长移植设备的纵向或水平方向的长度。

公开(公告)号：US4670590A

公开(公告)日：1987-06-02

申请号：US850605

申请日：1986-04-11

申请人： Yoshihiko Kambara ,  Shiro Asano ,  Wataru Isozaki ,  Syoji Kitado ,  Masao Yamaguchi

发明人： Yoshihiko Kambara ,  Shiro Asano ,  Wataru Isozaki ,  Syoji Kitado ,  Masao Yamaguchi

IPC分类号： C07C231/24 ,  B01D9/00 ,  C08J3/12 ,  C07C103/133

CPC分类号： B01D9/005

摘要： Acrylamide crystals are prepared from an aqueous solution of acrylamide by causing the aqueous solution and a coolant to flow inside each electrolytically-polished cooling tube of a double-walled or shell-and-tube heat exchanger and outside the cooling tube, respectively, instead of relying upon vacuum crystallization.

摘要翻译： 通过使水溶液和冷却剂分别在双壁或管壳式热交换器的每个电解抛光的冷却管内部分别流过冷却管外部，由丙烯酰胺水溶液制备丙烯酰胺晶体，而不是 依靠真空结晶。

公开(公告)号：US4032572A

公开(公告)日：1977-06-28

申请号：US637416

申请日：1975-12-03

申请人： Shiro Asano ,  Kiyotaka Yoshimura ,  Ryoji Tsuchiya ,  Tadatoshi Honda

发明人： Shiro Asano ,  Kiyotaka Yoshimura ,  Ryoji Tsuchiya ,  Tadatoshi Honda

IPC分类号： C07C233/09 ,  C07C103/08

CPC分类号： C07C233/09 ,  Y10S159/10

摘要： A method for economically concentrating an acrylamide aqueous solution by catalytic hydration without substantial deterioration in the product. According to the method, an acrylamide aqueous solution obtained from catalytic hydration, is concentrated by distillation while maintaining the solution in good contact with at least 0.1 mole. or more of air per mole of water distilled from the acrylamide aqueous solution.

公开(公告)号：US5041656A

公开(公告)日：1991-08-20

申请号：US565900

申请日：1990-08-10

申请人： Shiro Asano ,  Mareo Tokunaga ,  Yoshihiko Kambara

发明人： Shiro Asano ,  Mareo Tokunaga ,  Yoshihiko Kambara

IPC分类号： C07B61/00 ,  B01J25/00 ,  C07C67/00 ,  C07C231/00 ,  C07C231/06 ,  C07C233/09

CPC分类号： C07C233/09 ,  Y02P20/584

摘要： A catalyst useful in the practice of a process, in which (meth)acrylamide is prepared through the hydration reaction between (meth)acrylonitrile and water in a suspended liquid-phase bed of a Raney copper catalyst, has been obtained by leaching a Raney copper alloy in the presence of the Raney copper catalyst which has been deteriorated. The above useful catalyst has higher performances, compared with a catalyst obtained by conventionally leaching the Raney copper alloy alone, has satisfactory handling properties in settling and filtering, and can significantly reduced the amount of catalyst to be discarded.

摘要翻译： 通过在阮内铜催化剂的悬浮液相床中通过（甲基）丙烯腈和水之间的水合反应制备（甲基）丙烯酰胺的方法的实践中有用的催化剂是通过浸出阮内铜 在已经劣化的阮内铜催化剂存在下合金。 与通过常规浸提阮内铜合金而获得的催化剂相比，上述有用的催化剂具有更高的性能，在沉降和过滤中具有令人满意的处理性能，并且可以显着降低待抛弃的催化剂的量。

公开(公告)号：US4345101A

公开(公告)日：1982-08-17

申请号：US269602

申请日：1981-06-02

申请人： Shiro Asano ,  Kohei Shizuka ,  Yoshihiko Kambara ,  Junji Mikami ,  Hiroshi Kato ,  Tadatoshi Honda

发明人： Shiro Asano ,  Kohei Shizuka ,  Yoshihiko Kambara ,  Junji Mikami ,  Hiroshi Kato ,  Tadatoshi Honda

IPC分类号： C07C231/24 ,  B01J23/00 ,  C07C233/09 ,  C07C253/34 ,  C08F20/52 ,  C08F120/56 ,  C07C103/133

CPC分类号： C07C253/34 ,  C07C231/24

摘要： An aqueous solution of acrylamide obtained by catalytic hydration of acrylonitrile in the presence of a copper-based catalyst is purified by the steps, in sequence, of (a) removal of the unreacted acrylonitrile, (b) removal of copper, (c) treatment under basic conditions, (d) cation exchanging treatment and (e) weakly basic anion exchanging treatment. The acrylamide obtained by this process has good storage stability. An acrylamide polymer produced from this monomer is useful as a flocculant having a reduced content of the unreacted monomer, a high molecular weight and excellent solubility in water.

摘要翻译： 通过在（a）去除未反应的丙烯腈，（b）去除铜，（c）处理（c）处理的步骤中，按照以下步骤来纯化在铜基催化剂存在下通过丙烯腈的催化水合获得的丙烯酰胺水溶液 在碱性条件下，（d）阳离子交换处理和（e）弱碱性阴离子交换处理。 通过该方法获得的丙烯酰胺具有良好的储存稳定性。 由该单体制备的丙烯酰胺聚合物可用作具有降低的未反应单体含量，高分子量和优异的在水中的溶解度的絮凝剂。

公开(公告)号：US4365090A

公开(公告)日：1982-12-21

申请号：US264949

申请日：1981-05-18

申请人： Shiro Asano

发明人： Shiro Asano

IPC分类号： C07C231/06 ,  B01J23/00 ,  B01J23/72 ,  C07C67/00 ,  C07C231/00 ,  C07C233/09 ,  C07C102/08

CPC分类号： C07C231/065

摘要： In a process for producing acrylamide by hydrating acrylonitrile in the presence of a copper-based catalyst, the reaction is carried out in the presence of 30 to 10,000 ppm of acetone in the reaction solution. According to this process, the activity of the copper-based catalyst is maintained and the economic advantage of acrylamide production is enhanced.

摘要翻译： 在铜基催化剂存在下使丙烯腈水合制备丙烯酰胺的方法中，反应在反应溶液中的丙酮30〜10000ppm的存在下进行。 根据该方法，维持铜基催化剂的活性，提高丙烯酰胺生产的经济效益。

公开(公告)号：US4169107A

公开(公告)日：1979-09-25

申请号：US838368

申请日：1977-09-30

申请人： Shiro Asano ,  Kiyotaka Yoshimura ,  Masao Hashimoto

发明人： Shiro Asano ,  Kiyotaka Yoshimura ,  Masao Hashimoto

IPC分类号： C07D213/82 ,  B01J23/00 ,  B01J23/72 ,  B01J25/00 ,  B01J27/00 ,  B01J27/24 ,  C07B61/00 ,  C07C67/00 ,  C07C231/00 ,  C07C231/06 ,  C07C233/09 ,  C07D213/81 ,  C07C102/08

CPC分类号： C07D213/81 ,  B01J23/72 ,  B01J27/24

摘要： An improved process for converting acrylonitrile to the corresponding amide by hydrating said nitrile in the presence of a metallic copper catalyst and aluminum nitrate as promoter for said catalyst.

摘要翻译： 通过在金属铜催化剂和硝酸铝作为催化剂的助催化剂存在下使所述腈水合而将丙烯腈转化成相应的酰胺的改进方法。

公开(公告)号：US4108893A

公开(公告)日：1978-08-22

申请号：US762842

申请日：1977-01-27

申请人： Shiro Asano ,  Kohei Shizuka ,  Junji Mikami ,  Kenichi Hirakawa ,  Mutsuo Matsumura

发明人： Shiro Asano ,  Kohei Shizuka ,  Junji Mikami ,  Kenichi Hirakawa ,  Mutsuo Matsumura

IPC分类号： C07C231/06 ,  B01D15/04 ,  C07C20060101 ,  C07C67/00 ,  C07C231/00 ,  C07C231/24 ,  C07C233/09 ,  C08F120/56

CPC分类号： C07C233/09

摘要： An improved process is disclosed for the purification of an aqueous solution of acrylamide. It comprises bringing a crude aqueous solution of acrylamide into contact with oxygen or an oxygen-containing gas and thereafter subjecting the solution to a dual treatment with a strongly acidic cation exchange resin followed by a weakly basic anion exchange resin. If necessary, the aqueous solution of acrylamide is treated, while maintaining its oxygen content at least at 4ppm and then subjected to the treatment with the ion exchange resins.

摘要翻译： 公开了用于纯化丙烯酰胺水溶液的改进方法。 其包括将丙烯酰胺的粗制水溶液与氧气或含氧气体接触，然后用强酸性阳离子交换树脂和弱碱性阴离子交换树脂进行双重处理。 如果需要，处理丙烯酰胺水溶液，同时保持其氧含量至少为4ppm，然后用离子交换树脂进行处理。