Black Mass Lithium Leach: 2D Particle and Kinetics View

Leach conditions

Temperature 60 C

H2SO4 concentration 2.0 M

Solid / liquid 50 g/L

H2O2 reductant 2.0 vol%

Particle size 50 um

Stirring 400 rpm

Extraction

Lithium

-

Cobalt

-

Nickel

-

Manganese

-

Free acid left

-

H2O2 left

-

Leach time

-

Acid demand / supply

-

Shrinking-core model: t = tau_r[1-(1-X)^(1/3)] + tau_d[1-3(1-X)^(2/3)+2(1-X)], tau_r ~ d exp(Ea/R(1/T0-1/T)) C^-0.6 with reductant need for Co/Mn; tau_d ~ d^2. Acid is consumed stoichiometrically.