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Languages : en
Pages : 6
Book Description
United States Patent : US3347664 : Process for the Production of Low Silicon Medium -to-low Carbon Ferromanganese
Author: United States Patent : US2823983 : Process for the Production of Metallic Silicon
Author: The Production of Refined Ferromanganese in a Transferred-arc Plasma Furnace
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 17
Book Description
This report describes experimental work on production and refining of medium-carbon ferromanganese in a dc transferred-arc plasma furnace. Medium-carbon ferromanganese was produced by the simultaneous reaction of silicomanganese, manganese ore, burnt lime, and clay. The metals produced contained less than 1,5 per cent silicon and about 1,5 per cent carbon, and the manganese oxide level in the slag was below 25 per cent. The overall recovery of manganese was 95 per cent, while about 55 per cent of the manganese could be extracted from the ore. A low-silicon medium-carbon ferromanganese (refined ferromanganese) was produced by reaction of standard-grade medium-carbon ferromanganese with different manganese ores. Refining was achieved by the reduction of the silicon from 1,1 and 1,6 per cent in the initial metal samples to between 0,12 and 0,22 per cent in the processed metals.
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