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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
97Beneficiation Technology
much aluminum to be classied as ferrous scrap but too much iron to be remelted by
secondary smelters.
Figure 5.26 shows a traditional solution to this problem (EnviroAir Inc., 2005;
Nijkerk and Dalmijn, 1998), a sweat furnace. Sweat furnaces can be either the
rotary type shown here or a less sophisticated stationary dry-hearth design. In
either case, the principle is simple. High-irony scrap fed to the furnace is heated
to a temperature just above the melting point of aluminum (660°C). At this tem-
perature, the aluminum slowly melts away (hence the term, sweating), leaving the
higher-melting point iron behind. The liquid ...
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Publisher Resources

ISBN: 9781466570245