Back to results
US 5,944,870 AGranted
Method of manufacturing pig iron or steel and cement clinker from slags
Assignee"Holderbank" Financiere Glarus AG
InventorAlfred Edlinger
Life of this patent
Estimating the term…
Abstract
To produce pig iron or steel and cement clinker from slags it has been proposed to react iron-oxide containing liquid slags, such as, e.g., steelworks slag, with iron oxide carriers, such as, e.g., ores, cinders or the like and lime to a ferrite-containing slag and to reduce the formed ferrite slag in a reduction reactor, such as, e.g., an iron bath reactor, whereupon the sinter phase is discharged as a clinker.
Claims13
A process for producing pig iron or steel and cement clinker from slags, comprising:
- mixing an iron-oxide containing liquid slag with at least one iron oxide carrier and lime to form a Fe.sub.2 O.sub.3 -containing ferrite slag;
- introducing the ferrite slag into a reduction reactor over, and in contact with, an iron bath within the reactor, the iron bath containing carbon sufficient to reduce the Fe.sub.2 O.sub.3 content of the slag to form a sinter phase and pig iron or steel;
- and
- discharging the sinter phase from the reactor as a clinker.
1 more element
Dependencies are inferred from the claim text.