Battery grade lithium carbonate raw materials through 150 mesh ~ 350 mesh screen, sintering using two temperature zone setting, in order to 600 ~ 750℃ sintering 7 ~ 12 hours, 750 ~ 930℃ sintering 9 ~ 18 hours, each stage to do the sintering temperature transition. The concrete steps of crushing, screening, pulping, washing, drying, PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC field of the semi-finished product obtained from a sintering process.
First, the primary sintered semi-finished product is broken, graded and screened, and the particle size is controlled d50=10 ~ 12µm; Then the crushed MATERIAL is added to the pulping kettle for washing, according to the mass ratio of the material: water = 1:3 ~ 5 to add pure water, stir for 15 ~ 45 minutes, filter, and recycle the filtrate, which is conducive to the PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC removal operation.
Add pure water with a mass ratio of water = 1:3 ~ 5, wash and filter 2 ~ 5 times; Finally, the filter cake was dried for 6 ~ 12 hours, the drying temperature was 110 ~ 130℃, and the iron was removed by PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC. Metal oxides are oxides or hydroxides of titanium, aluminum, magnesium, zirconium or cerium, and d50 is 100 to 500 nanometers.
Contact: DELLA
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