Beneficiation of metal slags for use as cement material
AssigneeCemVision AB
InventorsPaul Johan Sandberg, Claes Göran Kollberg, Mats Erik Åhlin, Francis Louis Kemeny
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Abstract
Methods and systems are provided for forming a cement material incorporating an industrial byproduct. In at least one embodiment, a method for forming a cement material includes maintaining a slag as an at least partially molten material and adding one or additives to modify the at least partially molten material. The method further comprises cooling the at least partially molten material to comprise a solid non-metallic fraction with a substantially amorphous molecular structure and a metal fraction that is substantively separated from the solid non-metallic fraction.
Claims20
A method for forming a cement material, the method comprising:
- maintaining a slag, the slag to leave a furnace as an at least partially molten material;
- separating a solid non-metallic fraction and a metal fraction from the at least partially molten material;
- and
- adding a calcium source to the solid non-metallic fraction,
- wherein the solid non-metallic fraction has an amorphous content of greater than 90%.
A method for forming a cement material, the method comprising:
- maintaining a slag, the slag to leave a furnace as an at least partially molten material;
- adding a calcium source to the at least partially molten material, wherein the calcium source is added in an amount approaching a saturation level of the at least partially molten material with calcium;
- and
- separating a solid non-metallic fraction and a metal fraction from the at least partially molten material.
Dependencies are inferred from the claim text.