Method and agglomerates for production of FeSi
AssigneeSinvent AS
InventorOla Schiefloe Raaness
Life of this patent
Estimating the term…
Abstract
In the production of ferrosilicon in an electric reduction furnace by the reaction of iron-containing, silica-containing and carbonaceous materials, agglomerates containing a substantially homogeneous mixture of iron or a reducible iron compound and a carbonaceous material are used to replace at least a portion of the iron-containing materials in the furnace. These agglomerates have a weight ratio of carbon to iron of 0.2:1 to 1.5:1 in their reduced form after reaction in the furnace.
Claims12
In a method for production of ferrosilicon in an electric reduction furnace by the reaction of iron-containing, silica-containing and carbonaceous materials,
- the improvement comprising supplying the furnace, with iron-containing and carbonaceous materials in the form of agglomerates consisting essentially of a substantially homogeneous mixture of iron or a reducible iron compound and the carbonaceous material, having a weight ratio of carbon to iron of 0.2:1 to 1.5:1 after reaction in the furnace.
Agglomerates for the production of ferrosilicon in an electric reduction furnace consisting essentially of a substantially homogeneous mixture of iron or a reducible iron compound and a carbonaceous material having a weight ratio between carbon and iron in reduced form of 0.2:1 to 1.5:1,
- said agglomerates being adapted for reaction with silica in an electric reduction furnace for production of ferrosilicon.
Dependencies are inferred from the claim text.