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Aluminum Recycling, 2nd Edition
book

Aluminum Recycling, 2nd Edition

by Mark E. Schlesinger
December 2013
Intermediate to advanced content levelIntermediate to advanced
282 pages
9h 56m
English
CRC Press
Content preview from Aluminum Recycling, 2nd Edition
169
10
Electric Furnace Melting
As illustrated in previous chapters, most aluminum scrap is melted in furnaces
heated by the combustion of a fossil fuel—natural gas, oil, or perhaps coal. However,
the use of fossil fuels as an energy source has disadvantages (Butler, 2006):
Poor fuel efciency
Required ventilation to handle the combustion products
Dross generation from the interaction of combustion products with the mol-
ten metal
Melt contamination from the interaction of combustion products with the
molten metal
High surface temperature in the metal, which encourages hydrogen
absorption
Refractory degradation in the roof and side
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Publisher Resources

ISBN: 9781466570245