Patent ID: 11958753
Assignee: ILIAD IP COMPANY, LLC
Field: Chemical engineering (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 18:
19. The process of claim 1 wherein the step of flowing the brine solution through said countercurrent adsorption and desorption circuit further comprises the steps of:
a) displacing a lithium-containing feed brine solution from a freshly loaded adsorbent bed or column using said lithium product eluate and passing a displacement liquor solution to a brine feed inlet of a lithium adsorption zone;
b) incorporating said displacement liquor solution into said feed brine solution to form a combined liquor/feed brine solution;
c) passing said combined liquor/feed brine solution through a lithium loading zone where lithium is adsorbed on one or more loading adsorbent beds or columns and forming a lithium depleted brine raffinate;
d) displacing an eluate solution from said loading adsorbent beds with a portion of said lithium depleted brine raffinate from said lithium loading zone and into an elution zone;
e) flowing a fresh eluant solution through said elution zone stripping a portion of lithium adsorbed on said adsorbent beds or columns; and
f) collecting a portion of said eluant having high lithium concentration as said enhanced lithium product solution.