Novel clays bridged a large interfoliate spacing and their method of preparation.

摘要

The present invention relates to novel clays bridged by aluminum pillars and having an interfoliate spacing of at least 1 nm. & br / & they are obtained according to a process which consists in introducing an aqueous solution of a base in a reaction medium comprising an aluminum salt and the clay, in aqueous suspension, and then to separate the product obtained and which is characterized by the fact that the addition of the base is carried out in a controlled manner. & br / clays of the invention are particularly well suited to applications in the field of catalysis.