Method for melting ferrous scrap metal and chromite in a submerged arc furnace to produce a chromium containing iron
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United States of America Patent
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Aug 5, 1997
Grant Date -
N/A
app pub date -
Apr 18, 1995
filing date -
Apr 18, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The process feeds a mixture of scrap metal, chromite, flux materials, carbonaceous material and wood chips to a submerged arc furnace to make a base iron suitable for iron and steel purposes. The mixture contains about 1-60% chromite, about 1 to 20% flux materials, about 5 to 35% carbonaceous material, about 0-10% wood chips, all based on the weight of scrap in the mixture. By maintaining the charge in the furnace, good energy efficiencies are obtained.
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