Abrasion-resistant catalyst carrier formed of transition aluminas
    2.
    发明授权
    Abrasion-resistant catalyst carrier formed of transition aluminas 失效
    由过渡氧化铝形成的耐磨催化剂载体

    公开(公告)号:US5518979A

    公开(公告)日:1996-05-21

    申请号:US302751

    申请日:1994-09-13

    摘要: The description relates to a particularly abrasion-resistant catalyst carrier of special activated aluminum oxide. The aluminum oxide consists of either the "gamma" or the "kappa" modification and has no "delta" modification, or it consists of the "kappa" and "theta" modifications and has no "alpha" modification. Carrier catalysts which contain catalytically active metals and/or metal compounds on the abrasion-resistant carrier are especially suitable for use in fluidized bed processes.

    摘要翻译: PCT No.PCT / EP93 / 00525 Sec。 371日期1994年9月13日 102(e)1994年9月13日PCT 1993年3月8日PCT公布。 公开号WO93 / 17786 日期1993年9月16日。该描述涉及特殊的耐磨催化剂载体的特殊活性氧化铝。 氧化铝由“γ”或“κ”修饰组成,不具有“delta”修饰,或者由“kappa”和“theta”修饰组成,并且没有“α”修饰。 在耐磨载体上含有催化活性金属和/或金属化合物的载体催化剂特别适用于流化床方法。

    Process for the production of spherical shaped bodies based on Al.sub.2
O.sub.3 and optionally SiO.sub.2
    3.
    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

    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 producing spherical catalyst particles, catalyst particles and their use in a chemical synthesis
    7.
    发明授权
    Process for producing spherical catalyst particles, catalyst particles and their use in a chemical synthesis 有权
    制备球形催化剂颗粒,催化剂颗粒及其在化学合成中的应用的方法

    公开(公告)号:US06465382B1

    公开(公告)日:2002-10-15

    申请号:US09554113

    申请日:2000-07-12

    IPC分类号: B01J2989

    摘要: Process for producing spherical catalyst particles containing a zeolite as active element, according to which a sol containing zeolite crystals and at least one gel-forming compound is sprayed from below directly into a reaction zone containing a reaction gas such that the sol breaks up into individual sol beads immediately before or upon entry into the reaction zone, the sol beads flow through the reaction zone on a curved trajectory, in so doing are pre-consolidated and the sol beads are collected on a collecting means.

    摘要翻译: 制备含沸石作为活性成分的球形催化剂颗粒的方法,根据该方法,将含有沸石晶体和至少一种凝胶形成化合物的溶胶直接从下面喷入含有反应气体的反应区,使得溶胶分解成单独的 溶胶珠在进入反应区之前或进入反应区后,溶胶珠在弯曲的轨迹上流过反应区,这样做被预固化,并将溶胶珠收集在收集装置上。

    Abrasion-resistant carrier catalyst
    8.
    发明授权
    Abrasion-resistant carrier catalyst 失效
    耐磨载体催化剂

    公开(公告)号:US5507956A

    公开(公告)日:1996-04-16

    申请号:US302764

    申请日:1994-12-19

    摘要: The description relates to an abrasion-resistant carrier catalyst for removing the nitrite and/or nitrate content of polluted water with selective nitrogen formation. The catalytically active metal component is palladium and/or rhodium or palladium and a metal from the copper group. The carrier consists of aluminum oxide in the "theta" and "kappa" modification and has either one maximum pore diameter in the 70 to 150 nm (700 to 1500 .ANG.) range or two maxima in the 10 to 150 nm (100 to 1500 .ANG.) range. The description also relates to a continuously operable process for the removal or reduction of the oxygen, nitrite and/or nitrate content of water by catalytic hydrogenation. The process is implemented using the novel carrier catalysts, the carriers being made of aluminum oxide of the theta and kappa modifications. Contamination of the catalyst is effectively prevented by the preferred use according to the fluidized bed process.

    摘要翻译: PCT No.PCT / EP93 / 00523 Sec。 371日期1994年12月19日第 102(e)1994年12月19日PCT PCT 1993年3月8日PCT公布。 出版物WO93 / 17790 日期1993年9月16日。该描述涉及用于除去选择性氮形成的污水的亚硝酸盐和/或硝酸盐含量的耐磨载体催化剂。 催化活性金属组分是钯和/或铑或钯和来自铜基团的金属。 载体由“θ”和“κ”修饰中的氧化铝组成,并且在70至150nm(700至1500安氏)范围内具有一个最大孔径,或在10至150nm(100至1500安培)中具有两个最大值 ) 范围。 该描述还涉及通过催化氢化除去或还原氧,亚硝酸盐和/或硝酸盐含量的连续可操作的方法。 该方法使用新的载体催化剂来实施,载体由θ和κ修饰的氧化铝制成。 通过根据流化床方法的优选用途有效地防止了催化剂的污染。