Accelerated ammoniacal leaching of copper
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FeS Addition Exp to Charge* No. (mg)
1 2 3 4 5 6 7 8 9 10 11 12
Temp 1150~ 0 200 100 50 0 200 100 50 0 200 100 50
13 14 15 16 17 18
Temp 1250~ 0 300 0 300 0 300
Copper Fe
S
0.0 0.54 0.25 0.13 0.0 0.32 0.12 0.06 0.0 0.51 0.27 0.14
0.92 1.12 1.44 0.92 1.44 0.85 0.56 0.42 1.34 1.23 1.39 1.10
0.0 0.70 0.0 0.84 0.0 0.79
1.29 1.29 1.39 1.18 1.34 1.39
As
Sb
Bi
0.11 0.10 0.10 0.098
0.11 0.11 0.10 0.12
0.095 0.089 0.098 0.100 -
0.110 0.106 0.106 0.125
Distribution Coefficient, L x
Matte Se
0.0083 0.0075 0.011 0.011 -
0.089 0.094 0.089 0.099 0.097 . . .
0.014 0.012 .
Te
Fe
0.012 0.014 0.014 0.015 -
0.0 3.51 1.98 1.27 0.0 3.68 2.01 1.06 0.0 3.58 1.85 0.94
0.018 0.017 -
As
Sb
0.0087 0.0041 0.0086 . . 0.0080 0.0027 0.0082 0.0029
0.0 2.65 0.0 3.20 0.0 2.42
Bi
Se
Te
0.012 0.012 0.012 0.009 . -
0.066 0.056 0.061 0.074 . -
0.041 0.039 0.039 0.048 -
0.005 0.005 0.015 0.0045 0.0015 0.015 0.0070 0.014 0.0055 . . .
As
Sb
Se
Te
0.13 0.13 0.18 0.15
0.30 0.36 0.35 0.31
7.9 7.4 8.2 11.2
12 12 13 12 Average 12
0.12 0.12 .
Bi
27 34 37 40 35
0.079 0.079 -
8.0
0.15 0.33 0.12 0.23 0.10 0.22
22 24 15 23 Average 22
18 6
6.3 6.6 6.9
15
6.6
0.11 0.23
*Charge: CusS 3 g; Cu 4 g (Nos. 1-8), 5 g (Nos. 9-18), minor element addition: 5 mg (Nos. 1-8), 6 mg (Nos. 9-18).
t
Accelerated Ammoniacal Leaching of Copper
Table II. Distribution Coefficients This Study
Element Bi Sb As Se Te
Experimental Data 1150~ 1250~ 8.0 35 12 0.15 0.33
Asano
Schlitt
et at a,4,s Linear Equation (T in ~
6.6 15 22 0.11 0.23
Lni = 7.3 Lsb = 25 L a s = 17 + Lse = 0.13 LTe = 0.28
et al.S
(1200~
(1200~
0.014 (T-1200) 8.1 0.20 (T-1200) 13.6 (3.10 (T-1200) 9 - 0.0004 (T-1200) 0.074 -- 0.001 (T-1200) 0.12
0.077 0.13
T.
P. FLORIDIS Copper
rials
is recovered
by ammoniacal
of two tions
major
of ammonium are The
results
of the present
copper coexists with white ing and converting, arsenic,
study
indicate
that
when
metal as in continuous antimony and bismuth
smeltwill
tend to concentrate in the copper, while selenium and tellurium will concentrate in the white metal which is continuously minor smelting
by the converting
levels
process
in the copper degree
flushed
element
in the copper
will,
however,
concentrate
of elimination
Which
by slagging
air.
The
actual
in a continuous
depend
on the levels
is smelted,
and
on the
and volatilization.
1. W. A. Baker and A. P. C. Hallowes: Trans. Inst. Min. Met., 1949, vol. 59, pp. 129-46. 2. N. Asano and T. Ichio: Suiyokaishi, 1962, vol. 14, pp. 467-70. 3. N. Asano: Nippon Kogyo Kaishi, 1965, vol. 81, pp. 283-85. 4. N. Asano and M. Wada: Suiyokaishi, 1968, vol. 16, pp. 385-88. 5. N. Asano, K. Wase, and M. Kobayashi: Nippon Kogyo Kaishi, 1971, vol. 87, pp. 347-52. 6. J. Gerlach, U. Hennig, and K. Trettin: Erzmetall., 1966, vol. 19, pp. 458-63. 7. J. Gerlach, U. Hemaig, and H-S. Park: Erzmetalt., 1972, vol. 25, pp. 69-77. 8. W. J. Schlitt and K. J. Richards: Met. Trans., vol. 4, 1973, pp. 819-23. 9. W. J. Schlitt and K. J. Richards: Kennecott C
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