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US 9,499,755 B2Granted
Composite briquette for steelmaking or ironmaking furnace charge
OwnerPierre Vaydainventor
Life of this patent
Estimating the term…
Abstract
A briquette for addition to the charge in a steelmaking or ironmaking furnace includes at least 15% by weight of magnesium carbonate, and a binder.
Claims14
A composite briquette for addition to a charge in a steelmaking or ironmaking furnace, the briquette comprising:
- about 75% by weight of magnesium carbonate;
- about 15% by weight metallurgical coke;
- and
- about 10% by weight of a binder.
1 more element
A composite briquette for addition to the charge in a steelmaking or ironmaking furnace, the briquette comprising:
- about 52% by weight magnesium carbonate;
- about 30% by weight metallurgical coke;
- about 9% by weight magnesium oxide;
- and
- about 9% by weight of the binder.
2 more elements
A method of improving the charge in a steelmaking or ironmaking furnace, the charge having a slag layer on top of the charge, the method comprising the steps of:
- adding a composite briquette to the charge below the slag layer, the composite briquette comprising:
- about 75% by weight magnesium carbonate,
- about 15% by weight metallurgical coke, and
- about 10% by weight of the binder, the steelmaking or ironmaking furnace being an electric arc furnace, a basic oxygen furnace, or a blast furnace.
1 more element
A composite briquette for addition to the charge in a steelmaking or ironmaking furnace, the briquette comprising:
- about 75% by weight of magnesium carbonate;
- about 15% by weight of one or more carbonaceous substances selected from the group consisting of:
- metallurgical coke, carbon fines, anthracite, and non-anthracitic coal;
- and
- about 10% by weight of a binder.
2 more elements
Dependencies are inferred from the claim text.