Metalurgi v37 640

4.
 
C
ONCLUSIONS
 
The goal of this experiment is to separate 
magnesium ions from seawater in order to 
liberate a lithium solution from magnesium ions. 
The precipitation experiment results revealed that 
the addition of 80 percent stoichiometric sodium 
silicate resulted in the most effective separation 
of lithium and magnesium ions. The Mg/Li ratio 
in the filtrate was reduced from 10521 before 
precipitation to 64 after precipitation, which was 
the most effective result. When lithium and 
magnesium ions are separated using the sodium 
silicate precipitation process, the removed 
lithium from the filtrate is 82,26%. The multi-
stage process could only reduce the amount of 
lithium-ion lost in the filtrate from 82.26% to 
76.54%. According to the findings of this study, 
the sodium silicate precipitation process was 
ineffective in separating lithium and magnesium 
ions from seawater in both single-stage and 
multi-stage processes. Because the obtained 
solids have a chemical structure similar to talc, 
solid products could be used as basic ingredients 
in the pharmaceutical industry. 
A
CKNOWLEDGMENT
 
Thank you to the National Research and 
Innovation Agency's Research Center for 
Metallurgy for supporting the activities of the 
Red and White Lithium Battery, the national 
research priority grant in 2021. 
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