Production of mixtures of methylenedianiline and its higher homologues using calcined metal oxide-silica catalysts
    1.
    发明授权
    Production of mixtures of methylenedianiline and its higher homologues using calcined metal oxide-silica catalysts 有权
    使用煅烧金属氧化物 - 二氧化硅催化剂生产亚甲基二苯胺及其高级同系物的混合物

    公开(公告)号:US08558027B2

    公开(公告)日:2013-10-15

    申请号:US13058603

    申请日:2009-08-14

    IPC分类号: C07C211/00

    摘要: The present disclosure relates to compositions, systems, and methods of forming an amine (e.g., methylenedianiline (MDA)) using an acid catalyst including, for example, a metal oxide-silica catalyst calcined at temperature(s) of about ≧500° C. to form a solid acid silica-metal oxide catalyst. A metal oxide of a solid acid silica-metal oxide catalyst may comprise alumina. A process for making a solid acid silica-metal oxide catalyst may comprise calcining an amorphous alumina-silica material at temperature(s) of about ≧500° C. and/or under an anhydrous and/or inert atmosphere. A rearrangement reaction of the condensation product of aniline and formaldehyde in the presence of a solid acid silica-metal oxide catalyst may yield more MDA and/or more desirable isomer(s) of MDA than reactions performed with a corresponding catalyst calcined at temperature(s) of less than 500° C.

    摘要翻译: 本公开内容涉及使用酸催化剂形成胺(例如亚甲基二苯胺(MDA))的组合物,体系和方法,所述酸催化剂包括例如在大约> 500℃的温度下煅烧的金属氧化物 - 二氧化硅催化剂 C.形成固体酸二氧化硅 - 金属氧化物催化剂。 固体二氧化硅 - 金属氧化物催化剂的金属氧化物可以包含氧化铝。 制备固体酸性二氧化硅 - 金属氧化物催化剂的方法可以包括在约> = 500℃的温度和/或在无水和/或惰性气氛下煅烧无定形氧化铝 - 二氧化硅材料。 在固体酸二氧化硅 - 金属氧化物催化剂存在下,苯胺和甲醛的缩合产物的重排反应可以产生更多的MDA和/或更理想的MDA异构体,而不是用相对应的在 )小于500℃

    Complexing agent-modified trimetal cyanide catalyst
    4.
    发明授权
    Complexing agent-modified trimetal cyanide catalyst 失效
    络合剂改性三氰甲基氰催化剂

    公开(公告)号:US06388048B1

    公开(公告)日:2002-05-14

    申请号:US09574924

    申请日:2000-05-19

    IPC分类号: C07C4311

    CPC分类号: C08G65/2663 C08G65/10

    摘要: Metal [hexacyanocobaltate, cobalthexanitrite nitroferricyanide] complexes are useful alkylene oxide polymerization catalysts. The metal is any that forms a precipitate with the hexacyanocobaltate, cobalthexanitrite and nitroferricyanide groups. These catalysts are made from less expensive raw materials than the common zinc hexacyanocobaltate catalysts, and provide short induction periods and many cases more controlled exotherms. In addition, the metal [hexacyanocobaltate, cobalthexanitrite nitroferricyanide] catalysts often provide poly(propylene oxide) polymers having very low unsaturations, even when the catalyst is complexed with a complexing agent such as glyme.

    摘要翻译: 金属[六氰合钴酸钴,钴六硝基硝基铁氰化物]配合物是有用的环氧烷聚合催化剂。 金属是与六氰基钴酸盐,钴六亚硝酸盐和硝基氰化物基团形成沉淀物的任何物质。 这些催化剂由比普通的六氰合钴酸锌催化剂更廉价的原料制成,并且提供短的诱导期和许多情况下更有控制的放热。 此外,即使当催化剂与络合剂如甘醇二甲醚络合时,金属[六氰合钴酸盐,钴六硝基硝基铁氰化物]催化剂通常提供具有非常低不饱和度的聚(环氧丙烷)聚合物。

    Word forming game for large words

    公开(公告)号:US10471338B2

    公开(公告)日:2019-11-12

    申请号:US15854650

    申请日:2017-12-26

    摘要: This invention is a novel word forming board game that uses a unique combination of features that enables and rewards large word formation. In addition, chance is used to make the outcome less predictable and more fun for players of all skill levels. The game apparatus includes a larger number of board spaces, a large number of letter tiles, and chance components (multiplier, bonus word, swap card and swap tiles chance types). The method of play uses a large number of letter tiles per player hand, and the ability to exchange letter tiles at the end of each turn. The basis of the word points is the word length which rewards large word formation. The multiplier chance types amplify the impact of forming large words on the player score, with multiplier values as high as 10 and as low as −10, distributed so lesser skilled players can win more often.

    Complexing agent-modified hexacyanometallate hexanitrometallate catalysts
    10.
    发明授权
    Complexing agent-modified hexacyanometallate hexanitrometallate catalysts 失效
    络合剂改性六氰基金属螯合物六苯甲酸盐催化剂

    公开(公告)号:US06376645B1

    公开(公告)日:2002-04-23

    申请号:US09574925

    申请日:2000-05-19

    IPC分类号: C07C4311

    CPC分类号: C08G65/2663 B01J27/26

    摘要: Metal [hexacyanometallate hexanitrometallate] complexes are useful alkylene oxide polymerization catalysts. The metal is any that forms a precipitate with hexacyanometallate and hexanitrometallate groups. These catalysts are made from less expensive raw materials than the common zinc hexacyanocobaltate catalysts, and provide short induction periods and in many cases more controlled exotherms.

    摘要翻译: 金属[hexacyanometallate hexanitrometallate]复合物是有用的环氧烷聚合催化剂。 金属是任何与六氰基金属盐酸盐和己氮铝酸盐基团形成沉淀物的金属。 这些催化剂由比普通的六氰合钴酸锌催化剂更便宜的原料制成,并且提供短的诱导期,并且在许多情况下是更受控制的放热。