Patent ID: 11873540
Assignee: US BORAX INC.
Field: Materials, metallurgy (Chemistry)
Classification: CPC C  Y | IPC C

Claim 0:
1. A method of extracting lithium from a lithium-bearing material including:
(i) mixing the lithium-bearing material, gypsum, a sulfur-containing material, and a calcium-containing material and forming a feed mixture having a moisture content ranging from 20 to 60 wt %;
(ii) drying the feed mixture to form a dried mixture having a moisture content of less than 20 wt %;
(iii) roasting the dried mixture and forming a roasted mixture including a water-soluble lithium compound; and
(iv) leaching lithium from the water-soluble lithium compound and forming a lithium-containing leachate by mixing an aqueous solution and the water-soluble lithium compound.