Agglomerated alumina-based spherical grains
    2.
    发明授权
    Agglomerated alumina-based spherical grains 失效
    聚集的氧化铝基球形颗粒

    公开(公告)号:US3960772A

    公开(公告)日:1976-06-01

    申请号:US455233

    申请日:1974-03-27

    摘要: The invention concerns alumina-based spherically shaped grains produced from pastes of moistened particles. These grains are produced by subjecting the pastes, in the form of grains of any shape whatever, to the action of mechanical vibrations of frequencies within the range of from a few herz, in liquids which are slightly or not at all water-miscible. To the alumina, which is the main component, particles of various natures and acids, bases and various compounds which are dissolved in the water used for preparing the pastes, can be added. Once matured, dried and calcined, the grains have a very high level of resistance to attrition, a porosity comprising pores of large dimensions, and can be used in particular for adsorption, chromatography and catalysis.

    摘要翻译: 本发明涉及由湿润颗粒糊制成的氧化铝基球形颗粒。 这些颗粒是通过将任何形状的颗粒形式的糊状物在少量或不完全与水混溶的液体中经受几毫升范围内的频率的机械振动的作用而制得的。 作为主要成分的氧化铝可以添加各种性质的酸和碱,溶解在用于制备糊料的水中的各种化合物。 一旦成熟,干燥和煅烧,颗粒具有非常高的耐磨性,具有包括大尺寸的孔的孔隙率,并且可以特别用于吸附,色谱和催化。