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US 2024/0382926 A1Published application
Gis-type zeolite, adsorbent, and separation method
AssigneeAsahi Kasei Kabushiki Kaisha
InventorsAtsushi OKUBO, Saya MAEDA, Takayuki AKAOGI
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Abstract
A GIS-type zeolite having a silica/alumina ratio of 3.40 or more, in which, when area intensities of peaks assigned to Q4(3Al), Q4(2AL), Q4(1Al) and Q4(0Al) observed in a 29Si-MAS-NMR spectrum are respectively defined as a, b, c and d, (a+d)/(b+c)≥0.192 is satisfied.
Claims18
A GIS-type zeolite, having a silica/alumina ratio of 3.40 or more, wherein
- when area intensities of peaks assigned to Q4(3Al), Q4(2Al), Q4(1Al) and Q4(0Al) observed in a 29Si-MAS-NMR spectrum are respectively defined as a, b, c and d, (a+d)/(b+c)≥0.192 is satisfied.
Dependencies are inferred from the claim text.