Recovery of lithium from brines

US4116856A · kind A · utility

Assignee

• THE DOW CHEMICAL COMPANY · US

Inventors

• John M. Lee · Lake Jackson, US
• William C. Bauman · Lake Jackson, US

Key dates

• Filing date: Jul 5, 1977
• Grant date: Sep 26, 1978
• Expiry date: Jul 5, 1997

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01F7/78
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

An anion exchange resin, containing Al(OH).sub.3 suspended therein, is reacted with aq. LiOH to form microcrystalline LiOH.2Al(OH).sub.3 which is then reacted with a halogen acid or halide salt to form microcrystalline LiX.2Al(OH).sub.3. The resin, after having a portion of the LiX eluted by using an aqueous wash, is used to recover Li.sup.+ values from aqueous brines.