Zeolite and preparation method therefor
AssigneesPosco, Research Institute of Industrial Science & Technology
InventorsTae Bong BYEON, Keon Mok SOHN, Kiyoung KIM
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Abstract
Disclosed is a method of producing zeolite that includes obtaining a lithium residue including aluminosilicate from lithium ore including lithium oxide; washing the lithium residue to adjust the pH of the lithium residue; adjusting a molar ratio of silicon to aluminum (Si/Al) included in the lithium residue; preparing a hydrogel by adding an alkali material to the lithium residue; and preparing crystals by crystallizing the lithium residue in the form of a hydrogel.
Claims14
A method of producing zeolite, comprising
- obtaining a lithium residue including aluminosilicate from lithium ore including lithium oxide;
- washing the lithium residue to adjust the pH of the lithium residue;
- adjusting a molar ratio of silicon to aluminum (Si/Al) included in the lithium residue;
- preparing a hydrogel by adding an alkali material to the lithium residue;
- and
- preparing crystals by crystallizing the lithium residue in the form of a hydrogel.
A zeolite having a crystal phase comprising at least one an A-type zeolite, an X-type zeolite, and a P-type zeolite and
- comprising 0.005 wt % or less (excluding 0 wt %) of hydroxysodalite (Na8(AlSiO6)4(OH)2), analcime (NaAlSi2O6.H2O), and SOD based on total 100 wt %.
Dependencies are inferred from the claim text.