Process for uniform and reproducible shell impregnation of fixed bed
catalyst supports in the form of loose particles
    3.
    发明授权
    Process for uniform and reproducible shell impregnation of fixed bed catalyst supports in the form of loose particles 失效
    固定床催化剂载体以松散颗粒的形式均匀且可再现的壳浸渍方法

    公开(公告)号:US5498590A

    公开(公告)日:1996-03-12

    申请号:US157233

    申请日:1993-11-24

    IPC分类号: B01J37/02

    CPC分类号: B01J37/0223 B01J37/0232

    摘要: A process for uniform and reproducible impregnation of fixed bed catalyst supports in the form of loose particles with a desired shell volume, by applying atomized impregnating solutions of precursors of the catalytically active components onto the heap of catalyst supports circulated in a tank. By suitable selection of the spraying parameters, in particular the droplet size range, the quantity of solvent and the quantity of impregnating solution sprayed per rotation of the tank, the catalyst supports may be provided with shells with an excellent degree of uniformity.

    摘要翻译: 通过将催化活性组分的前体的雾化浸渍溶液施加到在罐中循环的催化剂载体的堆上,使具有所需壳体积的松散颗粒形式的固定床催化剂载体均匀且可重复地浸渍的方法。 通过适当选择喷雾参数,特别是液滴尺寸范围,溶剂的量和每个罐的每转喷涂的浸渍溶液的量,催化剂载体可以具有优异的均匀度的壳。

    Metal-containing, shaped polymeric, tertiary and/or secondary
organosiloxane amine compounds, method of their production and use
    4.
    发明授权
    Metal-containing, shaped polymeric, tertiary and/or secondary organosiloxane amine compounds, method of their production and use 失效
    含金属,形状的聚合物,仲胺和/或次生有机硅氧烷化合物,其生产和使用方法

    公开(公告)号:US5237019A

    公开(公告)日:1993-08-17

    申请号:US858415

    申请日:1992-03-27

    摘要: Metal-containing, shaped, polymeric, tertiary and/or secondary organosiloxane amine compounds are introduced which contain the metals Pd, Pt, Ru, Rh individually or in combination as well as optional promotors and/or moderators. The organosiloxane amine functioning as carrier for the metals contains the units ##STR1## and/or units ##STR2## in which R.sup.1 to R.sup.5 are a group ##STR3## with R.sup.6 as a double-bonded group bound to N and Si (e.g. an alkylene group) and X is an amine group such as The carrier substance can be cross-linked with cross-linking agents containing Si, Ti, Zr or Al. The metal-containing product is spherical in form and is defined by the parameters of sphere diameter, specific surface and pore volume as well as bulk density. A method of production is disclosed which can be carried out in several variants as well as the use of the metal-containing product as catalyst for hydrogenation reactions and oxidation reactions.

    摘要翻译: 引入含金属,成型,聚合,叔和/或次级有机硅氧烷胺化合物,其单独或组合地含有金属Pd,Pt,Ru,Rh以及任选的促进剂和/或调节剂。 有机硅氧烷胺作为载体发挥功能的金属包含单元和/或单元(II)其中R 1至R 5是一组(III)与R6如与N-双键基团 和Si(例如亚烷基),X是胺基,例如载体物质可以与含有Si,Ti,Zr或Al的交联剂交联。 含金属产品的形状为球形,由球体直径,比表面积和孔体积以及堆积密度的参数定义。 公开了一种生产方法,其可以在几种变体中进行,以及使用含金属的产物作为氢化反应和氧化反应的催化剂。

    Shaped articles based on pyrogenically produced titanium dioxide
    7.
    发明授权
    Shaped articles based on pyrogenically produced titanium dioxide 失效
    基于热解产生的二氧化钛的成型制品

    公开(公告)号:US5366938A

    公开(公告)日:1994-11-22

    申请号:US508564

    申请日:1990-04-13

    摘要: Pressed parts based on pyrogenically produced titanium dioxide with the following physico-chemical characteristics:______________________________________ Outer diameter 0.8-15 mm BET surface according 99.5% TiO.sub.2 ______________________________________ They are produced by mixing pyrogenically produced titanium dioxide with urea, graphite and water, compacting the mixture, optionally drying the resulting mass at 80.degree. C. to 120.degree. C. comminuting, subsequently extruding or tabletting to produce pressed parts and tempering the pressed parts at a temperature of 710.degree. C. to 1000.degree. C. for a period of 0.5 to 6 hours. The pressed parts can be used as catalyst or catalytic carrier.

    摘要翻译: 基于热解产生的二氧化钛的压制零件,具有以下物理化学特性:-Out直径0.8-15mm -BET表面,根据<1-20m2 / g-至DIN 66131-孔体积0.01-0.29cm 3 / g - 孔 分布无孔<10nm - 至少90%的孔 - 在10-80nm的范围内 - 增强强度30-500N /压制部分-TiO 2相金红石100% - 复合> 99.5%TiO 2 - 它们由 将热解产生的二氧化钛与尿素,石墨和水混合,将混合物压实,任选地将所得物质在80℃至120℃干燥,粉碎,随后挤出或压片以产生压制部件,并在 710℃至1000℃,时间为0.5至6小时。 压制零件可用作催化剂或催化载体。

    Shaped articles based on pyrogenically produced titanium dioxide, method
of their production and their use
    10.
    发明授权
    Shaped articles based on pyrogenically produced titanium dioxide, method of their production and their use 失效
    基于热解产生的二氧化钛的成型制品,其生产方法及其用途

    公开(公告)号:US5231067A

    公开(公告)日:1993-07-27

    申请号:US773504

    申请日:1991-10-09

    摘要: Pressed parts based on pyrogenically produced titanium dioxide with the following physico-chemical characteristics:______________________________________ Outer diameter 0.8-15 mm BET surface according 99.5% TiO.sub.2 ______________________________________ They are produced by mixing pyrogenically produced titanium dioxide with urea, graphite and water, compacting the mixture, optionally drying the resulting mass at 80.degree. C. to 120.degree. C. comminuting, subsequently extruding or tabletting to produce pressed parts and tempering the pressed parts at a temperature of 710.degree. C. to 1000.degree. C. for a period of 0.5 to 6 hours.The pressed parts can be used as catalyst or catalytic carrier.

    摘要翻译: 基于热解产生的二氧化钛的压制零件,具有以下物理化学特性:-Out直径0.8-15mm -BET表面,根据<1-20m2 / g-至DIN 66131-孔体积0.01-0.29cm 3 / g - 孔 分布无孔<10nm - 至少90%的孔 - 在10-80nm的范围内 - 增强强度30-500N /压制部分-TiO 2相金红石100% - 复合> 99.5%TiO 2 - 它们由 将热解产生的二氧化钛与尿素,石墨和水混合,将混合物压实,任选地将所得物质在80℃至120℃干燥,粉碎,随后挤出或压片以产生压制部件,并在 710℃至1000℃,时间为0.5至6小时。 压制零件可用作催化剂或催化载体。