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    Process for the production of spherical shaped bodies based on Al.sub.2 O.sub.3 and optionally SiO.sub.2
    7.
    发明授权
    Process for the production of spherical shaped bodies based on Al.sub.2 O.sub.3 and optionally SiO.sub.2 失效
    用于生产基于Al2O3和任选的SiO 2的球形体的方法

    公开(公告)号：US4341663A

    公开(公告)日：1982-07-27

    申请号：US182708

    申请日：1980-08-29

    申请人： Helmut Derleth ,  Karl-Heinz Bretz ,  Gunther Sauer

    发明人： Helmut Derleth ,  Karl-Heinz Bretz ,  Gunther Sauer

    IPC分类号： C01B33/26 ,  B01J20/08 ,  B01J20/10 ,  B01J21/04 ,  B01J21/08 ,  B01J21/12 ,  B01J35/08 ,  C01B33/12 ,  C01F7/02

    CPC分类号： C01F7/025 ,  B01J21/12 ,  B01J35/08 ,  C01B33/12 ,  C01P2004/32 ,  C01P2006/12 ,  C01P2006/14 ,  C01P2006/21

    摘要： A process for the preparation of shaped bodies includes preparing a plastic mixture of a material selected from the group consisting of aluminum oxides, aluminum hydroxides, silicon oxides, silicon hydroxides and mixtures thereof from a predominantly dry component K1 in powdered form and a paste component K2 comprising water and additional additives, continuously extruding the plastic mixture into cut lengths, shaping the cut lengths into spherical shaped bodies and drying the spherical shaped bodies and optionally tempering such bodies to form catalyst and catalyst supports. The solids content of the powdered component K1 is from 65 to 100% by weight whereas the solids content of the paste component K2 is 10 to 50% by weight. Preferable spherical shaped bodies are based on Al.sub.2 O.sub.3, SiO.sub.2, or Al.sub.2 O.sub.3 /SiO.sub.2.

    摘要翻译： 制备成形体的方法包括制备选自氧化铝，氢氧化铝，氧化硅，氢氧化硅及其混合物的材料的塑料混合物，其主要是粉状形式的干组分K1和糊组分K2 包括水和附加添加剂，将塑料混合物连续挤出成切割长度，将切割长度成形为球形体并干燥球形体，并任选回火这样的主体以形成催化剂和催化剂载体。 粉末状成分K1的固体成分为65〜100重量％，糊剂成分K2的固体成分为10〜50重量％。 优选的球形体基于Al 2 O 3，SiO 2或Al 2 O 3 / SiO 2。

    Process for the production of active aluminum oxide in bead and powder form
    8.
    发明授权
    Process for the production of active aluminum oxide in bead and powder form 失效
    用于生产珠粒和粉末形式的活性氧化铝的方法

    公开(公告)号：US3958341A

    公开(公告)日：1976-05-25

    申请号：US407096

    申请日：1973-10-17

    申请人： Ernst Podschus

    发明人： Ernst Podschus

    IPC分类号： B01J20/08 ,  B01J21/02 ,  B01J21/04 ,  B01J35/02 ,  C01F7/02 ,  C01F7/44 ,  F26B7/00

    CPC分类号： B01J21/02 ,  B01J20/08 ,  B01J21/04 ,  B01J35/02 ,  B01J35/026 ,  C01F7/025 ,  C01F7/441 ,  C01P2004/51 ,  C01P2004/60 ,  C01P2006/12 ,  C01P2006/21 ,  C01P2006/82

    摘要： Highly active aluminum oxide characterized by a severely disturbed crystalline structure of .chi.-(chi-)aluminum oxide, a specific surface area of about 260 to 400 m.sup.2 /g according to BET, a residual water content of 2 to 10 % and a water absorption capacity at 50 % relative atmospheric humidity of more than 15 %, and process of producing same by heating aluminum hydroxide to a temperature of 350.degree. to 800.degree.C with a residence time of from 0.1 to 2 seconds in a zone of high turbulence in a hot gas which enters said zone at a temperature of about 500.degree. to 1200.degree.C at an inflow rate of 30 to 150 m/second. These highly active aluminum oxide may be formed into beads by grinding said aluminum oxide to a specified particle size and forming the aluminum oxide under addition of water.

    摘要翻译： 高活性氧化铝，其特征在于奇 - （chi-）氧化铝严重受干扰的结晶结构，根据BET的比表面积为约260-400m2 / g，残留水含量为2-10％，吸水率 在50％相对大气湿度下的容量大于15％，以及通过将氢氧化铝加热至350℃至800℃的温度，在高湍流区域中的停留时间为0.1至2秒的同时，在 在大约500℃至1200℃的温度下以30至150m /秒的流入速率进入所述区域的热气体。 这些高活性氧化铝可以通过将所述氧化铝研磨成规定的粒径并在加入水中形成氧化铝而形成珠粒。