Claim · committed · confidence 0.92
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Statement: A basic blast furnace slag (CaO/SiO₂ > 1) removes sulfur from the pig iron melt; alkali removal is favored by a more acidic slag (CaO/SiO₂ < 1), creating an operational trade-off that furnace operators must manage.
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- About → Blast Furnace Slag
- Cites → 2026-slag-wikipedia