Process for recovering lithium from salt brines
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United States of America Patent
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Feb 9, 1988
Issued Date -
N/A
app pub date -
Jun 5, 1986
filing date -
Feb 4, 1985
priority date (Note) -
Expired
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Abstract
An improved process is described for recovering lithium from evaporatively concentrated brines. Epsom salt recovered from the brine at about 0.degree. C. is added to the concentrated lithium-containing brine, so as to precipitate lithium sulfate monohydrate, the brine having previously been subjected to the sequential steps of two stage chilling, evaporative concentration, further chilling and vacuum evaporation.
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