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18 条记录 (耗时 0.018 秒)

    Process for the preparation of a catalyst carrier based on aluminosilicates
    2.
    发明授权
    Process for the preparation of a catalyst carrier based on aluminosilicates 失效
    用于制备基于硅铝酸盐的催化剂载体的方法

    公开(公告)号：US5045519A

    公开(公告)日：1991-09-03

    申请号：US407863

    申请日：1989-09-15

    申请人： Arnold Meyer ,  Klaus Noweck ,  Ansgar Reichenauer ,  Jurgen Schimanski

    发明人： Arnold Meyer ,  Klaus Noweck ,  Ansgar Reichenauer ,  Jurgen Schimanski

    IPC分类号： B01J37/04 ,  A01B20060101 ,  B01J21/12 ,  B01J21/16 ,  B01J23/10 ,  B01J32/00 ,  C01B33/26

    CPC分类号： B01J21/12 ,  B01J23/10

    摘要： The invention relates to a process for the preparation of a high-purity, thermally stable catalyst carrier based on aluminosilicate with 0.5 to 50% by weight SiO.sub.2 by mixing an aluminum compound with a silicic acid compound in an aqueous medium, and subsequently drying or calcining the product obtained. The aluminum component used is a C.sub.2 to C.sub.20+ aluminum alkoxide hydrolyzed with water and purified by means of ion exchangers. Simultaneously or subsequently orthosilicic acid purified by means of ion exchangers is added to the aluminum compound.

    摘要翻译： 本发明涉及一种通过在水性介质中混合铝化合物与硅酸化合物，然后干燥或煅烧，制备基于硅铝酸盐的高纯度，热稳定的催化剂载体的方法，该催化剂载体具有0.5至50重量％的SiO 2 获得产品。 使用的铝组分是用水水解并通过离子交换剂纯化的C2至C20 +铝醇盐。 同时或随后通过离子交换剂纯化的正硅酸加入到铝化合物中。

    Process for the production of boehmitic aluminas
    6.
    发明授权
    Process for the production of boehmitic aluminas 失效
    制造BOEHICIC铝的工艺

    公开(公告)号：US5055019A

    公开(公告)日：1991-10-08

    申请号：US360311

    申请日：1989-06-02

    申请人： Arnold Meyer ,  Klaus Noweck ,  Ansgar Reichenauer

    发明人： Arnold Meyer ,  Klaus Noweck ,  Ansgar Reichenauer

    IPC分类号： C01F7/36 ,  C01F7/44

    CPC分类号： C01F7/448 ,  C01P2006/10 ,  C01P2006/12 ,  C01P2006/14 ,  C01P2006/16 ,  C01P2006/22 ,  C01P2006/80

    摘要： A process for the preparation of boehmitic alumina compounds having a purity of, at least, 99.95% Al.sub.2 O.sub.3. The compounds produced according to the invention have a pore radii in the range of 3 to 100 nm. The preparation of such compounds is carried out by, first, obtaining an alumina suspension from a neutral aluminum alkoxide hydrolysis and, then, aging the alumina suspension in an autoclave, preferably, at a steam pressure of 1 to 30 bar, corresponding to a temperature of 100.degree. C. to 235.degree. C., for between 0.5 and 20 hours. The aging step of the invention is preferably carried out with stirring at a peripheral speed of 1 to 6 m/s.

    摘要翻译： 一种制备具有至少99.95％纯度的Al 2 O 3的勃姆石氧化铝化合物的方法。 根据本发明生产的化合物的孔半径在3至100nm的范围内。 这种化合物的制备首先由中性醇铝水解得到氧化铝悬浮液，然后将氧化铝悬浮液在高压釜中老化，优选在1至30巴的蒸汽压力下，对应于温度 在100℃至235℃下进行0.5至20小时。 本发明的老化步骤优选在搅拌下以1〜6m / s的圆周速度进行。

    Method for preparing spheroidal alumina
    8.
    发明授权
    Method for preparing spheroidal alumina 失效
    球形氧化铝的制备方法

    公开(公告)号：US4542113A

    公开(公告)日：1985-09-17

    申请号：US478851

    申请日：1983-03-25

    申请人： Arnold Meyer ,  Klaus Noweck

    发明人： Arnold Meyer ,  Klaus Noweck

    IPC分类号： B01J21/00 ,  C01F7/02 ,  B01J35/08 ,  B01J37/00

    CPC分类号： C01F7/025 ,  C01P2004/32 ,  C01P2006/11 ,  C01P2006/12 ,  C01P2006/14 ,  C01P2006/21

    摘要： For the preparation of spheroidal alumina, an alumina sol having a solids content of more than 20 to 40% by weight of alumina is prepared from alumina hydrate, which consists of boehmite/pseudo-boehmite, by thorough stirring in aqueous dilute acid, and the alumina sol is caused in the presence of 1 to 10% by weight of urea to drop into a forming column whose top portion is filled with a liquid hydrocarbon and whose bottom portion is filled with an aqueous solution of ammonia and which is held at room temperature, and the thus formed spheroidal particles are dried and activated. The resultant spheroidal particles may also be subjected to a per se known aging treatment.

    摘要翻译： 对于球形氧化铝的制备，通过在稀酸水溶液中充分搅拌，由勃姆石/假勃姆石组成的水合氧化铝制备固体含量大于20-40重量％的氧化铝的氧化铝溶胶， 氧化铝溶胶在1〜10重量％的尿素存在下引入成型塔，其顶部填充有液体烃，其底部填充有氨水溶液，并保持在室温 并将由此形成的球状颗粒干燥并活化。 所得的球形颗粒也可以经历本身已知的时效处理。

    Agents for unsticking paint, and sedimentation agents
    9.
    发明授权
    Agents for unsticking paint, and sedimentation agents 失效
    油漆脱色剂和沉降剂

    公开(公告)号：US06485656B1

    公开(公告)日：2002-11-26

    申请号：US09424423

    申请日：2000-02-11

    申请人： Arnold Meyer ,  Jens Juhl ,  Klaus Noweck

    发明人： Arnold Meyer ,  Jens Juhl ,  Klaus Noweck

    IPC分类号： C09D700

    CPC分类号： C09D7/71 ,  Y10S210/93

    摘要： Paint detackifiers and/or sedimentation agents are provided which contain amorphous alumina and/or alumina in pseudoboehmite or boehmite form having an average crystallite size of from 0.1 to 15 nm and/or the hydrates and hydroxyalkylpolysaccharides thereof.

    摘要翻译： 提供了含有平均微晶尺寸为0.1至15nm的假勃姆石或勃姆石形式的无定形氧化铝和/或氧化铝和/或其水合物和羟烷基多糖的涂料防粘剂和/或沉降剂。

    Method for manufacturing a high porous alumina having a large surface area and a low bulk density
    10.
    发明授权
    Method for manufacturing a high porous alumina having a large surface area and a low bulk density 失效
    具有大表面积和低体积密度的高多孔氧化铝的制造方法

    公开(公告)号：US4175118A

    公开(公告)日：1979-11-20

    申请号：US908626

    申请日：1978-05-23

    申请人： Martin Wassermann ,  Klaus Noweck ,  Arnold Meyer

    发明人： Martin Wassermann ,  Klaus Noweck ,  Arnold Meyer

    IPC分类号： B01J20/08 ,  B01J21/04 ,  C01F7/36 ,  C01F7/02

    CPC分类号： B01J20/08 ,  B01J21/04 ,  C01F7/36 ,  C01P2006/10 ,  C01P2006/12 ,  C01P2006/14 ,  C01P2006/16

    摘要： A highly porous alumina having a large surface area and a low bulk density is prepared by hydrolyzing an aluminum alcoholate at a temperature of 40.degree. to 90.degree. C. in an aqueous solution containing 8 to 30% by weight of a compound which upon drying or activating splits out NH.sub.3 and/or CO.sub.2, there being used 0.5 to 3 parts by weight of the compound per 10 parts of aluminum alcoholate. The aluminum oxyhydrate paste formed by the hydrolysis is separated from the alcohol phase, in a given case is also purified, and subsequently dried or activated.

    摘要翻译： 通过在含有8〜30重量％的化合物的水溶液中，在40〜90℃的温度下水解醇铝，制备高表面积，低堆积密度的高度多孔的氧化铝， 活化分解NH 3和/或CO 2，每10份醇铝酸盐使用0.5至3重量份的化合物。 通过水解形成的氧化铝水合物糊料与醇相分离，在给定的情况下也被纯化，随后干燥或活化。