Process for recovering lithium from salt brines

Details Process for recovering lithium from salt brines Process for recovering lithium from salt brines

1986-06-05

1988-02-09

Metz, Andrew H.

Chemistry: physical processes

Physical processes

Crystallization

23304, 23296, 23300, 23298, 23295S, 23295R, 4231795, 423551, B01D 900, B01D 902, C01D 1500, C01D 1506

Patent

active

047239620

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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