公开(公告)号：EP1120379A1

公开(公告)日：2001-08-01

申请号：EP00931623.3

申请日：2000-05-31

申请人： Mizusawa Industrial Chemicals Ltd.

发明人： HATANO, Masashi, Mizusawa Ind. Chemicals, Ltd. ,  YAMAMOTO, Hitoshi, Mizusawa Ind. Chemicals, Ltd. ,  KUSE, Daisuke, Mizusawa Ind. Chemicals, Ltd.

IPC分类号： C01B33/40 ,  B01J21/16 ,  B01J32/00 ,  C11B3/10

CPC分类号： C01B33/40 ,  B01J20/12 ,  B01J21/16 ,  C11B3/10

摘要： Activated regular-shaped clay particles forming macropores therein, preserving fine structure of the dioctahedral smectite clay minerals, and having particle diameters controlled to lie within a range in which they exhibit excellent filtering property. The invention further provides method of producing activated regular-shaped clay particles comprising the steps of adjusting the particle size of the dioctahedral smectite clay minerals to possess a volume-based median diameter (D 50 ) of from 1 to 10 µ m as found by a laser diffraction method, mixing an acid-soluble or acid-decomposing inorganic compound to the milled product thereof, granulating the mixture into regular particles having a volume-based median diameter (D 50 ) of from 10 to 60 µ m as found by a laser diffraction method, and treating the regular-shaped particles with an acid while maintaining the particle shapes.

摘要翻译： 规则形状活性粘土颗粒形成大孔。其中，保留双八面体绿土粘土矿物的精细结构，和具有控制为处于它们表现出优异的过滤性质的范围内的粒径。 本发明进一步提供了一种生产的激活的方法，包括调节双八面体绿土粘土矿物的颗粒尺寸，以具有1至10微米的基于体积的中值直径（D50）的步骤规则形状活性粘土颗粒作为通过激光发现 衍射法，酸可溶的或酸可分解的无机化合物加入到碾磨产品物，将此混合物造粒而成具有从10至60微米的基于体积的中值直径（D50）的规则颗粒的混合如发现通过激光衍射法 ，并在酸处理规则形状颗粒，具有同时保持颗粒的形状。