Skip directly to search Skip directly to A to Z list Skip directly to page options Skip directly to site content

NIOSHTIC-2 Publications Search

Search Results

Lithium and Its Recovery from Low-Grade Nevada Clays.

Authors
Crocker-L; Lien-RH; Et Al
Source
MISSING :37 pages
Link
NIOSHTIC No.
10005992
Abstract
The Bureau of Mines investigated processes for recovering a marketable lithium product from the montmorillonite-type clays of the McDermitt Caldera. The clay deposit, located on the Nevada- Oregon border, is estimated to contain over 3 million short tons of lithium. 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. The operating costs for the limestone-gypsum roast process were estimated at $2.02/Lb li2co3; selective chlorination operating costs were estimated at $3.85/Lb li2co3. The current selling price of li2co3 is about $1.50/Lb. A detailed flowsheet, material balance, and process evaluation are presented for the limestone-gypsum roast process. In addition, lithium reserves and resources are discussed and the McDermitt clays are described.
Publication Date
19880101
Document Type
IH;
Fiscal Year
1988
NTIS Accession No.
NTIS Price
Identifying No.
B 691
NIOSH Division
SLRC;
Source Name
MISSING
State
NV; OR;
TOP