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Lithium and Its Recovery from Low-Grade Nevada Clays.

PB88232541

Publication Date	1987
Personal Author	Crocker, L.; Lien, R. H.
Page Count	44
Abstract	Processes were investigated for recovering a marketable lithium product from the montmorillonite-type clays of the McDermitt caldera. Limestone-gypsum roasting and selective chlorination proved most successful for extracting lithium from the clays; 80-pct Li recovery was achieved using either technique. With both processes, lithium silicate in the clay was converted to a water-soluble compound--either lithium sulfate or lithium chloride. The lithium was then recovered as a carbonate by water leaching the calcine, concentrating the leach solution by evaporation, and precipitating the lithium with soda ash.
Keywords	Materials recovery Lithium Clays Mining engineering Roasting Chlorination Leaching Limestone Gypsum Alkali metals
Source Agency	Bureau of Mines
NTIS Subject Category	48A - Mineral Industries 71N - Nonferrous Metals & Alloys
Corporate Authors	Bureau of Mines, Salt Lake City, UT. Salt Lake City Research Center.
Supplemental Notes	Library of Congress catalog card no. 87-600197.
Document Type	Technical Report
Title Note	Bulletin,
NTIS Issue Number	198821

Lithium and Its Recovery from Low-Grade Nevada Clays.

Lithium and Its Recovery from Low-Grade Nevada Clays.
PB88232541

Publication Date	1987
Personal Author	Crocker, L.; Lien, R. H.
Page Count	44
Abstract	Processes were investigated for recovering a marketable lithium product from the montmorillonite-type clays of the McDermitt caldera. Limestone-gypsum roasting and selective chlorination proved most successful for extracting lithium from the clays; 80-pct Li recovery was achieved using either technique. With both processes, lithium silicate in the clay was converted to a water-soluble compound--either lithium sulfate or lithium chloride. The lithium was then recovered as a carbonate by water leaching the calcine, concentrating the leach solution by evaporation, and precipitating the lithium with soda ash.
Keywords	Materials recovery Lithium Clays Mining engineering Roasting Chlorination Leaching Limestone Gypsum Alkali metals
Source Agency	Bureau of Mines
NTIS Subject Category	48A - Mineral Industries 71N - Nonferrous Metals & Alloys
Corporate Authors	Bureau of Mines, Salt Lake City, UT. Salt Lake City Research Center.
Supplemental Notes	Library of Congress catalog card no. 87-600197.
Document Type	Technical Report
Title Note	Bulletin,
NTIS Issue Number	198821