We studied the recycling of swelling solution of MWW-type lamellar zeolitic precursor with a Si/Al = 25. Swollen materials were obtained up to a third reuse without any compensation of reactants, pH or decrease of lamellar ordering degree. The pillared material showed a surface area of 777 m2 g−1 and mesopores sizes of 2–4 nm characteristic of pillared MWW materials obtained by traditional approaches.
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