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Sorption of Lithium from a Geothermal Brine by Pelletized Mixed Aluminum-Lithium Hydrous Oxides.

PB85245686

Publication Date	1985
Personal Author	Schultze, L. E.; Bauer, D. J.
Page Count	22
Abstract	An inorganic ion exchanger was evaluated by the Bureau of Mines for recovering lithium from geothermal brines. The ion exchanger or sorbent was mixed hydrous oxide of aluminum and lithium that had been dried at 100 C. The dried precipitate was pelletized with a sodium silicate binder to improve flow rates in sorption tests. The sorbent was loaded to 2 mg Li/g of pellets and sorption from the solution was independent of the concentrations of Ca, Fe, Mn, and Zn. Manganese and zinc were sorbed by the pellets but did not suppress lithium sorption. Lithium was desorbed with water, but none of the washing solutions investigated removed entrained brine without stripping lithium. The complex nature of the sorption mechanisms is discussed.
Keywords	Materials recovery Lithium Brines Precipitation(Chemistry) Separation Geothermy Evaporation Purification Process charting Geothermal resources
Source Agency	Bureau of Mines
NTIS Subject Category	71N - Nonferrous Metals & Alloys 97P - Geothermal Energy 99B - Industrial Chemistry & Chemical Process Engineering
Corporate Authors	Bureau of Mines, Reno, NV. Reno Research Center.
Document Type	Technical Report
NTIS Issue Number	198526

Sorption of Lithium from a Geothermal Brine by Pelletized Mixed Aluminum-Lithium Hydrous Oxides.

Sorption of Lithium from a Geothermal Brine by Pelletized Mixed Aluminum-Lithium Hydrous Oxides.
PB85245686

Publication Date	1985
Personal Author	Schultze, L. E.; Bauer, D. J.
Page Count	22
Abstract	An inorganic ion exchanger was evaluated by the Bureau of Mines for recovering lithium from geothermal brines. The ion exchanger or sorbent was mixed hydrous oxide of aluminum and lithium that had been dried at 100 C. The dried precipitate was pelletized with a sodium silicate binder to improve flow rates in sorption tests. The sorbent was loaded to 2 mg Li/g of pellets and sorption from the solution was independent of the concentrations of Ca, Fe, Mn, and Zn. Manganese and zinc were sorbed by the pellets but did not suppress lithium sorption. Lithium was desorbed with water, but none of the washing solutions investigated removed entrained brine without stripping lithium. The complex nature of the sorption mechanisms is discussed.
Keywords	Materials recovery Lithium Brines Precipitation(Chemistry) Separation Geothermy Evaporation Purification Process charting Geothermal resources
Source Agency	Bureau of Mines
NTIS Subject Category	71N - Nonferrous Metals & Alloys 97P - Geothermal Energy 99B - Industrial Chemistry & Chemical Process Engineering
Corporate Authors	Bureau of Mines, Reno, NV. Reno Research Center.
Document Type	Technical Report
NTIS Issue Number	198526