GENERAL47956

• Permit No: M1988112
• IBM Index Class Name: General Documents
• Doc Name: THE RECOVERY OF CYANIDE FROM SLURRIES
• Media Type: D
• Archive: No

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.TABLE 1 .. -
CHEMICALCHARACTERISTICS FOLLOWING CYANIDE RECOVERY
•Parometert''° Concentration Ranas .Average Concentration
•"ArsenlC
• •';' ~'.' 0.01 - 0.02 0.01
Cadmlurti .
~ ~' 0.004 - 0.004 0.004
Chromium <0.01 - <0.02 <0.02
. - Cobalt 0.15 - 0.18 0.16
Copper 0.28 - 0.55 0.39
Iron 0.05 - 0.09 0.01
Lead 0.05 - 0.20 0.10
Mercury 0.013 - 0.015 0.014
Nickel 2.05 - 0.10 0.0:3
Silver 0.5 - 1.1 0.9
Zinc 0.04 - 0.13 0.0!~
Thlocyanate 27.4 -36.6 31.3
Total Cyanide 1.3 - 2.3 1.7
Method-C Cyanide 0.7 - 1.6 1.2
Ammonta (as N) 13.8 • 21.3 18.6
Nitrate (as N) 20.0 - 31.4 25.4
Sulfate 1200 - 1600 1450
pH (in pH units) 9.5 - 9.8 -----
t't All concentrations In mg/I, unless otherwise stated.
1~1 All values are the result of direct analysts of the samples.
•. ~:
~ ..:
TABLE 5
RESULTS OF THE CANMET BENCH-SCALE AVR STUDIES
Mine and Barren Solution Parameter Concetration 1't
Chemistry Before
and After AYR CMt SCN .

Kerr Addison
- Barren Feed 60 47
- AVR Treated Effluent <O.t0 <1
:. .Dome _.. : . _.... _._ . ..- _
-Barren Feed 23 -
- AVR Treated EMuent ~ ~ <0.10 ~ 14
Giant Yellowknlle
- Barren Feed 260 50
-AVR Treated Effluent <0.10 57
Hollinger Ross
- Barren Feed 610 540
- AVR Treated Effluent 4.16 300-370
Pamour
- Barren Feed 990 1530
- AVR Treated Effluent <0.1-0 1180-1320
,~i Zn
14 10
0.3 0.01
-12 - 8
_...0.09 ,- . . 0.2 :` .
77 98
0.3 0.1
310 82
4 <0.01-8.0
310 86
0.3 - 2 <0.01
Ni Fe
6 0.8
0.05 <0.1
2 -
0.2 ~ 02
6 11
<0.03 <0.03
1 11
0.2 <0.03-0.08
230 1
0.1-2 <0.03-.01
t't All values In mg/I, unless otherwise stated.
"~ Total cyanide as measured by the picric acid colorlmetrlc method.