Revert manufactured from iron-bearing waste material

Details Revert manufactured from iron-bearing waste material Revert manufactured from iron-bearing waste material

1999-06-15

2000-10-03

Warden, Jill

Specialized metallurgical processes, compositions for use therei

Compositions

Solid treating composition for liquid metal or charge

75327, 75961, C22B 704

Patent

active

061267147

ABSTRACT:
The invention is directed to a process for dehydrating and recycling back into a BOF converter wet BOF scrubber sludge to produce a steelmaking revert having an improved flow rate when handled in a recycle stream. Wet sludge is combined with hot BOF slag to provide a slag/sludge mixture. The wet sludge causes the mixture to have a moisture content greater than 10% water by weight, and the hot slag, having a temperature below the molten liquid state, vaporizes the water in the mixture and reduces the moisture content to about 4% water by weight or less. The dehydrated mixture has improved flow rate properties when it is recycled as a steelmaking revert.

REFERENCES:
patent: Re30060 (1979-07-01), Kreiger
patent: 4711662 (1987-12-01), Harada
patent: 5885328 (1999-03-01), Markarian et al.

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