Smectic clay containing certain metal compounds in insertion, and which can be used as catalyst interlamellar

摘要

P smectic clay containing, by insertion interlamellar certain metal compounds. / p & & p & these clays have a spacing interlamellar of 6 to 16 a, the layers are separated by a metal oxide or a polymer metal complex, which may be converted by heating in the metal oxide and a proportion greater than 50% of the specific surface area of the clay consists in the pores of a size less than 30 ångstrom when the material of the separation of the layers is a metal oxide. / p & & p & these clays are used in particular of catalysts for the conversion of hydrocarbons. / p