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Deoxidation of Steel Using Waste Aluminizing Dross (A Feasibility Study).
NTIS: PB 211 349 :9 pages
An aluminizing dross which is accumulating as a waste material in substantial quantities was tested for possible use as a steel deoxidizer. This material, consisting mainly of aluminum, silicon, and iron, was used to deoxidize laboratory-scale melts ranging from 7 to 100 pounds. Oxygen analysis showed that the aluminizing dross was effective in reducing oxygen levels in steel. A direct comparison with aluminum wire showed the dross material to be at least as effective. Under similar test conditions with 7-pound melts, 3 grams of aluminum reduced the oxygen concentration from 210 to 175 ppm, while 4 grams of aluminizing dross (equivalent to approximately 2 grams aluminum) reduced the oxygen concentration from 250 to 170 ppm. An additional 4 grams of aluminizing dross produced a final oxygen concentration of 140 ppm.
NTIS Accession No.
NTIS: PB 211 349
Page last reviewed: April 12, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division