In 1900 the company settled with the Electric Smelting and Aluminum Company when a judge's decision gave " priority broadly " to its founders " for reducing ores and other substances by the incandescent method ".
2.
His visionary concept was set out in a March 1949 paper entitled " The electric smelting of iron ores for production of alloy irons and steels and the recovery of chromium and vanadium " which was published by the South African Institute of Mining and Metallurgy.
3.
The solid product from roasting is often called " calcine . " In oxidizing roasting, if the temperature and gas conditions are such that the sulfide feed is completely oxidized, the process is known as " dead roasting . " Sometimes, as in the case of pre-treating reverberatory or electric smelting furnace feed, the roasting process is performed with less than the required amount of oxygen to fully oxidize the feed.
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