Geology Reference
In-Depth Information
1
H
2
He
3
Li
4
Be
5
B
6
C
7
N
8
O
9
F
10
Ne
11
Na
12
Mg
13
Al
14
Si
15
P
16
S
17
Cl
18
Ar
19
K
20
Ca
21
Sc
22
Ti
23
V
24
Cr
25
Mn
26
Fe
27
Co
28
Ni
29
Cu
30
Zn
31
Ga
32
Ge
33
As
34
Se
35
Br
36
Kr
37
Rb
38
Sr
39
Y
40
Zr
41
Nb
42
Mo
43
Tc
44
Ru
45
Rh
46
Pd
47
Ag
48
Cd
49
In
50
Sn
51
Sb
52
Te
53
I
54
Xe
55
Cs
56
Ba
72
Hf
73
Ta
74
W
75
Re
76
Os
77
Ir
78
Pt
79
Au
80
Hg
81
Tl
82
Pb
83
Bi
84
Po
85
At
86
Rn
87
Fr
88
Ra
••
104
Rf
105
Db
106
Sg
107
Sg
108
Hs
109
Mt
110
Ds
111
Rg
112
Uub
113
Uut
114
Uug
115
Uup
116
Uuh
117
Uus
118
Uuo
57
La
58
Ce
59
Pr
60
Nd
61
Pm
62
Sm
63
Eu
64
Gd
65
Tb
66
Dy
67
Ho
68
Er
69
Tm
70
Yb
71
Lu
*Lanthanides
** Actinides
89
Ac
90
Th
91
Pa
92
U
93
Np
94
Pu
95
Am
96
Cm
97
Bk
98
Cf
99
Es
100
Fm
101
Md
102
No
103
Lr
> 50%
> 25-50%
> 1-25%
1-10%
< 1%
Fig. 14.1 The periodic table of global average recycled content for sixty metals. RC, the fraction
of secondary [scrap] metal in the total metal input to metal production). Unfilled boxes indicate
that no data or estimates are available, or that the element was not addressed as part of this study.
Reprinted from Graedel et al. (2011b)
75%, 50-55%, 29-33% and 85-90%); platinum 15/85 (75% e ciency) and beryllium
10/90 (5% e ciency). Recycled metal commodities in the US have been consis-
tently documented by the USGS over time, the latest of which forms the basis of
Fig. 14.2.
100%
90%
80%
70%
60%
50%
Percent Primary
Recycling Rate
40%
30%
20%
10%
0%
Fig. 14.2 Flow studies for recycled metal commodities in the US. Adapted from Sibley (2011)
A historical analysis for the case of aluminium made by Gerber (2007) 2 as shown
in Fig. 14.3 helps one understand the correlation between extraction and recycling
2 J. Gerber is a former chairman of the Global Aluminium Recycling Committee.
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