自从沸石作为催化剂被成功采用以后,在这个地区工作的几个研究组看到了粘土矿物用作催化剂的前景。其实,粘土对催化剂的制备有着良好的性能,即是说,在某种情况下,结晶结构能够很方便地被改型变成一种高表面积、以及对某些热处理和化学处理的稳定性。在天然粘土矿物中,海泡石分布十分广泛。这种矿物具有在纤维状结构边缘被接合在一起构成的板条状晶体。根据全长5.3A的纤维,通道测量约为11.5A。在某些 Since zeolite was successfully used as a catalyst, several groups working in the area have seen the prospect of clay minerals as catalysts. In fact, clay has good properties for the preparation of catalysts, that is to say that in some cases the crystalline structure can easily be modified to a high surface area, as well as to some heat treatment and chemical stability. In natural clay minerals, sepiolite distribution is very wide. This mineral has slab-like crystals joined together at the edges of the fibrous structure. According to the fiber length of 5.3A, the channel measurement is about 11.5A. In some