Development of Zeolite Y from Arobieye Mined Kaolin
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Zeolite Y was synthesized from Arobieye mined kaolin
in Ota, Ogun state Nigeria through metakaolinization and
zeolitization. The thermal activation of kaolin was achieved
through the process of metakaolinization while zeolitization
involved alkaline attack of thermally activated amorphous kaolin
(metakaolin) and its transformation into Zeolite Y crystal.
Silica/Alumina molar ratio of 5.84 of dealuminated metakaolin
was synthesized under hydrothermal treatment with aqeous
NaOH at atmospheric pressure after 7 days aging at room
temperature, and hydrothermally crystallized at 100oC for 24
hours. Zeolite NaY with Si/Al molar ratio of 3.46 was achieved
and then modified to its hydrogen form by ion exchange with
NH4Cl. The molar ratio of Zeolite Y in hydrogen form is 3.22.
The sample was characterized by Scanning Electron Microscope
(SEM) which gives Zeolite Y Structure.
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TP Chemical technology