	US 12,459,828 B2
	Method of making zeolite
Akolade Idris Bakare, Dhahran (SA); Galal A. Naseer, Dhahran (SA); Mohammed Ahmed Sanhoob, Dhahran (SA); and Zain Hassan Yamani, Dhahran (SA)
Assigned to KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS, Dhahran (SA)
Filed by KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS, Dhahran (SA)
Filed on Aug. 4, 2022, as Appl. No. 17/881,173.
Prior Publication US 2024/0043279 A1, Feb. 8, 2024
Int. Cl. C01B 39/38 (2006.01)

CPC C01B 39/38 (2013.01) [C01P 2002/72 (2013.01); C01P 2002/88 (2013.01); C01P 2004/03 (2013.01); C01P 2004/38 (2013.01); C01P 2004/61 (2013.01); C01P 2004/62 (2013.01)]

18 Claims

1. A method of making a zeolite, the method comprising:

mixing an aluminum nitrate with an aqueous solution of NaOH to form a first mixture;

mixing silica gel with the first mixture to form a second mixture;

heating the second mixture with microwave irradiation to form a first sample;

washing, drying, and ion exchanging the first sample with ammonium nitrate to form a second sample; and

calcining the second sample to form the zeolite,

wherein the method does not use a seed or a structural directing agent,

wherein the zeolite has a molar ratio of Al₂O₃:xSiO₂:yH₂O:zNaOH, and

x is in the range of 30 to 100,

y is in the range of 10000 to 35000, and

z is in the range of 8 to 30.