METHOD FOR ISOLATING METHYLGLYCINENITRILE-N,N-DIACETONITRILE
    4.
    发明申请
    METHOD FOR ISOLATING METHYLGLYCINENITRILE-N,N-DIACETONITRILE 审中-公开
    用于分离甲基丝氨酸N,N-二乙基纤维素的方法

    公开(公告)号:US20120184769A1

    公开(公告)日:2012-07-19

    申请号:US13498825

    申请日:2010-09-29

    IPC分类号: C07C253/34

    CPC分类号: C07C253/34 C07C255/25

    摘要: A method for isolating methylglycinenitrile-N,N-diacetonitrile (MGDN) from an aqueous mixture comprising MGDN is provided The method comprises cooling the aqueous mixture in one or more steps In one of these steps the mixture is cooled at a cooling rate of at least 20 K/h from a temperature above the solidification point of MGDN to a temperature below the solidification point of MGDN The method is implemented continuously

    摘要翻译: 提供了从包含MGDN的含水混合物中分离甲基亚氨基腈-N,N-二乙腈(MGDN)的方法。该方法包括在一个或多个步骤中冷却含水混合物。在这些步骤之一中,将混合物以至少的冷却速率 从MGDN的凝固点以上的温度20K / h到低于MGDN凝固点的温度。该方法连续实施

    Aminobenzophenonesulfonic acids
    5.
    发明授权
    Aminobenzophenonesulfonic acids 失效
    氨基苯丙酮酸

    公开(公告)号:US5153356A

    公开(公告)日:1992-10-06

    申请号:US733816

    申请日:1991-07-22

    摘要: Aminobenzophenones have the formula ##STR1## where the ring A may be benzofused,X.sup.1 is hydrogen or hydroxysulfonyl,X.sup.2 is hydrogen, hydroxysulfonyl, hydroxysulfonylphenyl, hydroxysulfonylbenzyl or hydroxysulfonylphenylethyl,R.sup.1, R.sup.2 and R.sup.3 are each independently of the others hydrogen, halogen, C.sub.1 -C.sub.12 -alkyl, cyclohexyl or C.sub.1 -C.sub.4 -alkoxy, or one of them may also be the radical of the formula ##STR2## where L is a chemical bond, C.sub.1 -C.sub.4 -alkylene or --O--CH.sub.2 -- and Y.sup.1, Y.sup.2 and Y.sup.3 are each independently of the others hydrogen, halogen, C.sub.1 -C.sub.12 -alkyl or C.sub.1 -C.sub.4 -alkoxy and R.sup.4, X.sup.1, X.sup.2 and the ring A are each as defined above, andR.sup.4 is hydrogen or chlorine,with the proviso that X.sup.1 and X.sup.2 are not both hydrogen, their intermediates having the formula ##STR3## where L is as defined above.

    摘要翻译: 氨基二苯甲酮具有通式为“IMAGE”,其中环A可以是苯并稠合的,X 1是氢或羟基磺酰基,X 2是氢,羟基磺酰基,羟基磺酰基苯基,羟基磺酰基苄基或羟基磺酰基苯乙基,R 1,R 2和R 3各自独立地是氢,卤素, C 1 -C 4 - 烷基,环己基或C 1 -C 4 - 烷氧基,或者它们中的一个也可以是下式的基团:其中L是化学键,C1-C4-亚烷基或-O-CH2-和Y1,Y2和 Y 3各自独立地为氢,卤素,C 1 -C 12 - 烷基或C 1 -C 4 - 烷氧基,R 4,X 1,X 2和环A各自如上所定义,R 4为氢或氯,条件是X 1 而X2不是氢,它们的中间体具有式“IMAGE”,其中L如上定义。

    PROCESS FOR PREPARING AMINOPOLYCARBOXYLATES
    7.
    发明申请
    PROCESS FOR PREPARING AMINOPOLYCARBOXYLATES 有权
    制备氨基羟基羧酸酯的方法

    公开(公告)号:US20120302783A1

    公开(公告)日:2012-11-29

    申请号:US13437093

    申请日:2012-04-02

    IPC分类号: C07C227/02

    CPC分类号: C07C227/02

    摘要: What is proposed is a process for preparing aminopolycarboxylates proceeding from the corresponding polyalkanolamines by oxidative dehydrogenation in the presence of a catalyst comprising 1 to 90% by weight of copper, based on the total weight of the catalyst, using a base, which comprises first performing a partial conversion of the polyalkanolamine to a reaction mixture comprising the aminopolycarboxylate at a temperature in the range from 140 to 180° C. until at least 10 to 90 mol % of the polyalkanolamine has been depleted, and then continuing the conversion at elevated temperature.

    摘要翻译: 提出的是一种制备在相应的聚链烷醇胺上通过氧化脱氢在催化剂存在下进行的氨基多羧酸盐的方法,所述催化剂包含1至90重量%的铜,基于催化剂的总重量,使用碱,其包括首先进行 在140〜180℃的温度范围内将聚链烷醇胺部分转化成含有氨基多羧酸盐的反应混合物,直到聚链烷醇胺的至少10〜90摩尔%已经耗尽,然后在升高的温度下继续转化。

    Method for drying and producing microporous particles
    8.
    发明授权
    Method for drying and producing microporous particles 有权
    干燥和生产微孔颗粒的方法

    公开(公告)号:US06516537B1

    公开(公告)日:2003-02-11

    申请号:US09623856

    申请日:2000-09-11

    IPC分类号: F26B300

    摘要: In a process for drying microporous, fluid-containing particles, the fluid-containing particles to be dried are fed as a moving bed countercurrently to a drying fluid, the interfacial tension of the fluid being reduced in comparison with the interfacial tension of the fluid at room temperature, at near-critical to supercritical pressure of the fluid, preferably to a value in the range from 0 to {fraction (1/10)}, in particular from 0 to {fraction (1/20)}, of the interfacial tension at room temperature. Furthermore, microporous, three-dimensionally networked particles are prepared by a process comprising preparation of microporous particles containing pore liquid, exchange of the pore liquid in the particles for a fluid and drying of the fluid-containing particles, the exchange and drying being carried out in the moving bed by the countercurrent method.

    摘要翻译: 在微孔,含流体颗粒的干燥过程中,要干燥的含流体颗粒作为移动床与干燥流体逆流进料,与流体的界面张力相比,流体的界面张力相对于 在室温附近,液体的临界压力接近临界压,优选为室温下界面张力的0至1/10,特别是0至1/20的值。 此外,通过包括制备包含孔隙液体的微孔颗粒,交换颗粒中的孔隙液体用于流体并干燥含流体的颗粒,进行交换和干燥的方法制备微孔,三维网状颗粒 在移动床上采用逆流法。

    Method for drying and producing microporous particles and a drying device
    9.
    发明授权
    Method for drying and producing microporous particles and a drying device 有权
    干燥和生产微孔颗粒的方法和干燥装置

    公开(公告)号:US06438867B1

    公开(公告)日:2002-08-27

    申请号:US09623873

    申请日:2000-09-11

    IPC分类号: F26B300

    CPC分类号: F26B7/00

    摘要: In a process for drying microporous, fluid-containing particles, the heat required for increasing the temperature is supplied by convection by reducing the interfacial tension of the fluid, preferably to 0 to 1/10, in particular to 0 to 1/20, of the interfacial tension of the fluid at room temperature, by appropriately increasing the temperature at from close to the critical pressure to supercritical pressure of the fluid. Furthermore, microporous, three-dimensionally networked particles are prepared by a process in which the drying process is used. In addition, an apparatus is used for carrying out the drying process, the apparatus comprising a pressure container having an inner container and pressure-withstanding outer container and suitable measuring and control apparatuses and pump apparatuses and heat exchangers, the inner container being provided for holding the particles to be dried and a gap being provided between the inner container and the outer container.

    摘要翻译: 在微孔,含流体颗粒的干燥过程中,通过降低流体的界面张力,优选为0至1/10,特别是0至1/20,通过对流来提供增加温度所需的热量 流体在室温下的界面张力,通过将接近临界压力的温度适当地提高到流体的超临界压力。 此外,通过使用干燥方法的方法制备微孔,三维网状颗粒。 此外,使用装置进行干燥处理,该装置包括具有内部容器和耐压外部容器的压力容器以及合适的测量和控制装置以及泵装置和热交换器,所述内部容器设置用于保持 待干燥的颗粒和在内部容器和外部容器之间设置的间隙。

    Hydrophobic silica aerogels
    10.
    发明授权
    Hydrophobic silica aerogels 失效
    疏水二氧化硅气凝胶

    公开(公告)号:US5738801A

    公开(公告)日:1998-04-14

    申请号:US600929

    申请日:1996-02-29

    摘要: Hydrophobic silica aerogels obtainable by reacting a waterglass solution with an acid at a pH of from 7.5 to 11, substantially removing ionic constituents from the resulting silica hydrogels by washing with water or dilute aqueous solutions of inorganic bases, while the pH of the hydrogels is kept in the range from 7.5 to 11, displacing the aqueous phase contained in the hydrogel by an alcohol, and subsequent supercritical drying of the resulting alcogels.

    摘要翻译: PCT No.PCT / EP94 / 02822 Sec。 371日期1996年2月29日 102(e)日期1996年2月29日PCT 1994年8月25日PCT公布。 出版物WO95 / 06617 日期1995年3月9日通过使水玻璃溶液与pH值为7.5〜11的酸反应获得的疏水性二氧化硅气凝胶,通过用水或稀释的无机碱水溶液洗涤,基本上从所得二氧化硅水凝胶中除去离子组分,同时pH 的水凝胶保持在7.5至11的范围内,用醇将水凝胶中所含的水相置换,随后对所得的凝胶进行超临界干燥。