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Zinc Roasting — Shrinking-Core Furnace Cross-Section (2D)

A 2D furnace cross-section showing ZnS concentrate particles roasting under a real shrinking-core kinetic model: an unreacted sulfide core shrinks inward as a porous ZnO shell grows outward, releasing SO2, while excess temperature diverts some ZnO into insoluble zinc ferrite instead of leachable oxide.

Chemistry & Materials2DAdvanced60 FPS📱 Mobile-adapted🔥 Fire ⇄ 3D version

A companion to the 3D smelter view: watch individual ZnS grains roast under a real shrinking-core kinetic model as they fall through the fluidized bed, tracking desulfurization, soluble Zn and the zinc-ferrite loss that appears when the bed runs too hot.

⚙ Under the hood

2D furnace cross-section companion to the 3D zinc-roasting smelter: the same temperature, oxygen-enrichment and concentrate-grade controls now drive a real shrinking-core kinetic model per ZnS grain (1-(1-X)^(1/3)=k·t/r0, k=k0·[0.3+0.7·O2/100]·exp(-Ea/RT)), so each grain's unreacted sulfide core visibly shrinks inside its growing ZnO shell as it falls through the fluidized bed, releasing SO2 and, past ~1300°C, diverting some ZnO into acid-insoluble zinc ferrite.

zinc roastingshrinking-core modelreaction kineticsmetallurgyzinc ferritecanvas 2d

2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install