| abstract |
There is provided a method for preparing a pillared, layered crystalline oxide, said method comprising the steps of: (i) forming a zeolite reaction mixture and effecting crystallization of the mixture; (ii) intercepting the crystalline product of step (i) in, or converting the product to, an intermediate state wherein the product contains a swellable, layered crystalline oxide; (iii) contacting the swellable, layered crystalline oxide of step (ii) with a swelling agent to produce a swollen, layered crystalline oxide; (iv) pillaring the swollen, layered crystalline oxide with a pillaring agent to insert interspathic oxide material between the layers of the swollen, layered crystalline oxide; and (v) calcining the pillared, layered crystalline oxide. |