SOLVOTHERMAL METHOD FOR MAKING LITHIUM IRON PHOSPHATE
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Jul 25, 2017
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Jan 27, 2015
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Abstract
A solvothermal method for making a lithium iron phosphate is disclosed. The waste liquid of a solvothermal reaction is treated synthetically by flash evaporation and a centrifugal separation to separate the water, the organic solvent, and the lithium sulfate, which is a byproduct from each other. One part of the separated organic solvent is reused as a reaction material of the solvothermal reaction to form a organic solvent recycle circuit. The other part of the separated organic solvent is mixed with the separated water to be used as a washing liquid. The washing liquid is retreated by flash evaporation and centrifugal separation to obtain the water and the organic solvent again to form a washing liquid circuit.
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