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[资源] 【资源】Aluminum Recycling

Aluminum Recycling

CRC Press
Taylor & Francis Group
6000 Broken Sound Parkway NW, Suite 300
Boca Raton, FL 33487-2742
© 2007 by Taylor & Francis Group, LLC
CRC Press is an imprint of Taylor & Francis Group, an Informa business
No claim to original U.S. Government works
Printed in the United States of America on acid-free paper
10 9 8 7 6 5 4 3 2 1
International Standard Book Number-10: 0-8493-9662-X (Hardcover)
International Standard Book Number-13: 978-0-8493-9662-5 (Hardcover)

Table of Contents
Chapter 1 Introduction ..........................................................................................1
A Brief History of Aluminum Recycling..................................................................2
Advantages (and Challenges) of Recycling ..............................................................4
Recommended Reading.............................................................................................8
References..................................................................................................................8
Chapter 2  The Ore Body.......................................................................................9
The Wrought Aluminum Alloy System ....................................................................9
The Cast Aluminum Alloy System .........................................................................14
The Product Mix......................................................................................................18
Recommended Reading...........................................................................................23
References................................................................................................................23
Chapter 3  Scrap Collection.................................................................................25
The Materials Life Cycle ........................................................................................25
Scrap Collection Practice ........................................................................................29
New Scrap ......................................................................................................29
Old Scrap........................................................................................................30
Transportation ....................................................................................31
Building..............................................................................................32
Packaging ...........................................................................................32
Wire and Cable ..................................................................................37
Recommended Reading...........................................................................................37
References................................................................................................................37
Chapter 4  Aluminum Recycling Economics ......................................................41
History of Aluminum Production............................................................................41
Production of Primary Aluminum...........................................................................42
Uses..........................................................................................................................43
Aluminum Recycling...............................................................................................43
Recycling of Used Aluminum Beverage Cans .......................................................45
Aluminum Recycling: An Economic Perspective...................................................48
Conclusion ...............................................................................................................51
Recommended Reading...........................................................................................53
References................................................................................................................53
Chapter 5  BeneﬁciationTechnology ...................................................................55
Comminution ...........................................................................................................55
Separation ................................................................................................................62
Hand Sorting ..................................................................................................62
Air Classiﬁcation............................................................................................63
Magnetic Separation ......................................................................................65
Eddy-Current Sorting.....................................................................................67
Heavy-Media Separation (HMS) ...................................................................71
The Alloy Separation Problem................................................................................75
Thermal Processing .................................................................................................78
Decoating .......................................................................................................78
Pyrolysis of Composite Packaging................................................................85
Paint Removal ................................................................................................85
Partial Melting................................................................................................86
Sweat Melting ................................................................................................86
Agglomeration .........................................................................................................87
Balers ............................................................................................................87
Briquetting......................................................................................................88
Recommended Reading...........................................................................................89
References................................................................................................................90
Chapter 6  Beneﬁciation Practice ........................................................................93
New Scrap................................................................................................................93
Municipal Solid Waste...........................................................................................100
UBCs and Other Packaging ..................................................................................102
Automotive Scrap ..................................................................................................105
Electrical and Electronic Scrap .............................................................................107
Recommended Reading.........................................................................................111
References..............................................................................................................111
Chapter 7  Melting Furnace Fundamentals .......................................................113
Heat-Transfer Kinetics...........................................................................................113
Combustion ............................................................................................................115
The Chemistry of Fluxing .....................................................................................117
Refractory Interactions ..........................................................................................118
Recommended Reading.........................................................................................120
References..............................................................................................................120
Chapter 8  Melting Furnace Parts and Accessories...........................................123
Burners...................................................................................................................123
Use of Enriched Air .....................................................................................123
Regeneration.................................................................................................125

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