Surface modification coating for lithium extraction from field collected lithium bearing waters
AssigneeThe Governors of the University of Alberta
InventorsDaniel Scott Alessi, Karthik Ramachandran Shivakumar, Fangshuai Wu
Life of this patent
Estimating the term…
Abstract
A method for extracting lithium from a lithium bearing water includes preparing a lithium manganese oxide (LMO) adsorbent, such as Li1.6Mn1.6O4, having a ceramic coating, such as zirconium dioxide, on a surface thereof; protonating the LMO adsorbent to remove lithium therefrom by topotactic exchange of Li to proton using an acid solution to form a delithiated LMO adsorbent; introducing the delithiated LMO adsorbent into the lithium bearing water for selective extraction of lithium from the lithium bearing water; and recovering lithium from the lithium bearing water. A novel composition delithiated compound is also provided.
Claims20
A method for extracting lithium from a lithium bearing water, the method comprising:
- preparing a lithium manganese oxide (LMO) adsorbent having a ceramic coating on a surface thereof;
- protonating the LMO adsorbent to remove lithium therefrom by topotactic exchange of Li for protons using an acid solution to form a delithiated LMO adsorbent;
- introducing the delithiated LMO adsorbent into the lithium bearing water for selective extraction of lithium from the lithium bearing water;
- and
- recovering lithium from the lithium bearing water.
A composition comprising:
- a delithiated lithium manganese oxide (LMO) adsorbent having a ceramic coating on a surface thereof and protons in place of lithium ions.
Dependencies are inferred from the claim text.