Midrex Corporation

Wolfgang B Pietsch

Charles A Schroer

The method of making a briquet from directly reduced finely divided metallized material is disclosed whereby 85 to 95% of metallized material is mixed with 5 to 15% of a binder to form a free flowing briquet feed, then densifying the feed material and forming it into briquets.

Metallized iron briquet

A briquet consisting of agglomerated directly reduced metallized particles, or mineral ore particles or a mixture thereof and a binder consisting of hydrated lime, sodium silicate and water. The method of making the briquet is also disclosed.

Briquet and method of making same

A compacted, passivated metallized iron product useful as a feed material for a steelmaking process, the product generally being formed by the compaction of hot metallized iron material, thus forming a product with a very dense face and a less dense center. The total iron present in the product is at least 75% in the metallic state and generally from 90% to 96% in the metallic state.

Compacted, passivated metallized iron product

A method for continuous passivation of hot sponge iron material, by feeding hot sponge iron material to a compactor, compacting the material to a high density elongated strip-like mass, cutting the mass longitudinally into a plurality of strips while simultaneously compacting the freshly cut longitudinal edges, cutting the strips transversely of their longitudinal dimensions while simultaneously compacting these freshly cut transverse edges.

Method for continuous passivation of sponge iron material

Apparatus for continuous passivation of hot sponge iron material consists of a feeder, a roll compactor for forming a high density continuous elongated mass, and longitudinal and transverse shearing devices, along with the requisite control and transporting mechanisms.

Apparatus for continuous passivation of sponge iron material

A binder composition for agglomerating directly reduced metallized particles and mineral ore particles comprises pitch, hydrated lime, sodium silicate and water. An agglomerated product is also disclosed.

Growing community of inventors

Matthews, NC, United States of America

Wolfgang B Pietsch