Crystalline silicate compositions having unique combinations of framework-confined uniform mesopores and textural mesopores and to a method for their preparation. The compositions typically possess a small particle size of .ltoreq.400 .ANG., a ratio of textural to framework-confined...http://www.google.com.au/patents/US5672556?utm_source=gb-gplus-sharePatent US5672556 - Crystalline silicate compositions and method of preparation
