Alkali aluminum complex hydroxide carbonate salt, and a process for
producing said salt and its uses
    2.
    发明授权
    Alkali aluminum complex hydroxide carbonate salt, and a process for producing said salt and its uses 失效
    碱金属铝复合氢氧化物碳酸盐,以及所述盐的制造方法及其用途

    公开(公告)号:US5997836A

    公开(公告)日:1999-12-07

    申请号:US817879

    申请日:1997-05-01

    摘要: According to this invention, an amorphous or pseudo-boehmite-type hydrated alumina gel and an alkali metal carbonate or bicarbonate as starting materials are reacted in an aqueous medium to give a method of producing a process for producing an alkali aluminum complex hydroxide carbonate salt which is industrially low-cost and has high productivity. Furthermore, by using a gibbsite-type hydrated alumina, a lithium aluminum complex hydroxide carbonate salt can be synthesized by a migration method.The lithium aluminum complex hydroxide carbonate salt and the sodium aluminum complex hydroxide carbonate salt obtained by the processes of the present invention have excellent compoundability in pigments and resins.In addition, these complex salts have no foaming hazards at the time of processing the resins and are useful as resin fillers for halogen capturing property, infrared ray absorbing property and excellent transparency. They are especially useful as a stabilizer (halogen capturing agent) for resin films, a warmth-keeping agent (infrared absorbing agent) and an anti-blocking agent.

    摘要翻译: PCT No.PCT / JP96 / 02470 Sec。 371日期1997年5月1日 102(e)日期1997年5月1日PCT PCT 1996年9月2日PCT公布。 出版物WO97 / 09274 日期1997年3月13日根据本发明,将无定形或假勃姆石型水合氧化铝凝胶和作为起始原料的碱金属碳酸盐或碳酸氢盐在水性介质中反应,得到制备碱铝的方法 复合氢氧化物碳酸盐,工业上成本低,生产率高。 此外,通过使用三水铝矿型水合氧化铝,可以通过迁移法合成锂铝复合氢氧化物碳酸盐。 通过本发明的方法得到的锂铝复合氢氧化物碳酸盐和钠铝复合氢氧化物碳酸盐在颜料和树脂中具有优异的复合性。 此外,这些复盐在加工树脂时没有起泡危害,并且可用作卤素捕获性,红外线吸收特性和优异透明性的树脂填料。 它们作为用于树脂膜的稳定剂(卤素捕获剂),保温剂(红外线吸收剂)和防粘连剂特别有用。

    Catalysts for producing methylamines
    3.
    发明授权
    Catalysts for producing methylamines 有权
    用于生产甲胺的催化剂

    公开(公告)号:US06294633B1

    公开(公告)日:2001-09-25

    申请号:US09630559

    申请日:2000-08-02

    IPC分类号: C07C20916

    摘要: Catalysts for producing methylamines are provided, which comprise mordenite, as the essential component, of spherical fine particles having a crystal diameter of not more than 0.5 &mgr;m. When the catalysts are used for the production of dimethylamine from methanol and ammonia or through a disproportionation of methylamines, they exhibit a high dimethylamine productivity with the formation of few amount of trimethylamine whose demand is very small. The process can be operated for a long period of time without decrease in the catalyst activity.

    摘要翻译: 提供了用于生产甲胺的催化剂,其包含丝光沸石作为必需组分的具有不超过0.5μm的晶体直径的球形细颗粒。 当催化剂用于从甲醇和氨生产二甲胺或通过甲胺歧化生成二甲胺时,它们表现出高的二甲胺生产率,形成的需求量很少的三甲胺数量很少。 该方法可以长时间运行而催化剂活性不降低。

    Crystalline silicoaluminophosphate salt molecular sieve having octaoxygen-membered ring pore, process for producing the same and process for producing methylamine with the molecular sieve as catalyst
    7.
    发明申请
    Crystalline silicoaluminophosphate salt molecular sieve having octaoxygen-membered ring pore, process for producing the same and process for producing methylamine with the molecular sieve as catalyst 有权
    具有八氧环元环的结晶硅铝磷酸盐分子筛,其制备方法和用分子筛作催化剂制备甲胺的方法

    公开(公告)号:US20050249661A1

    公开(公告)日:2005-11-10

    申请号:US10515380

    申请日:2003-05-23

    摘要: Problems on catalyst production and catalyst performance with respect to conventional 8-oxygen-membered ring micropore-containing crystalline silicoaluminophosphate molecular sieves as non-equilibrium methylamine synthesis catalysts, are resolved. A chabazite type crystalline silicoaluminophosphate molecular sieve having high purity and high crystallinity and having, on a crystal grain surface, an amorphous oxide layer whose Si/Al atomic ratio is greater than that of the whole crystal grain can be stably produced with high yield with the use of a small amount of structure directing agents by the present method characterized in that hydrothermal treatment conducted in the production of 8-oxygen-membered ring micropore-containing crystalline silicoaluminophosphate sieves is controlled under specified treating conditions. The thickness and composition of the amorphous oxide layer, which exert marked influence on the yield of dimethylamine synthesis, can be easily controlled and reproduced under the conditions of catalyst synthesis according to the invention. Thus, the catalyst of high performance can be stably supplied by the present invention at a low cost with reduced output of waste.

    摘要翻译: 解决了关于作为非平衡甲胺合成催化剂的常规8-氧元素环微孔结晶硅铝磷酸盐分子筛的催化剂生产和催化剂性能的问题。 具有高纯度和高结晶度的菱沸石型结晶硅铝磷酸盐分子筛可以在晶粒表面上具有Si / Al原子比大于整个晶粒的非晶氧化物层的稳定的高产率, 通过本方法使用少量的结构导向剂,其特征在于在规定的处理条件下控制在8-氧元环微孔结晶硅铝磷酸盐筛的生产中进行的水热处理。 可以在根据本发明的催化剂合成条件下容易地控制和再现无定形氧化物层的厚度和组成,其对二甲胺合成的收率具有显着影响。 因此,通过本发明可以以低成本稳定地提供高性能的催化剂,同时减少废弃物的产出。