4iiieNEe2ee s.gses MACLENNAN 010 PAMOUR AREA METALLURGICAL LABORATORY METALLURGICAL EVALUATION OF COWACHJNG PROPERTY ORE November 90, 1382 SUDBURY MINING DIV. RECEIVED O CT 2 7 1996 v A.M. P.M. v RECEIVED *- OCT 3 O 1986 MINING LANDS SECTION Distribution: J. J. R. D. Lindsay By: Charlie Vos Laboratory Supervisor Note: The metallurgical results contained in this report were obtained from laboratory testwork on samples submitted for evaluation and should not be interpreted as being necessarily indicative of full scale plant performance.
Transcript
4iiieNEe2ee s.gses MACLENNAN010
PAMOUR AREA METALLURGICAL LABORATORY
METALLURGICAL EVALUATION OF COWACHJNG PROPERTY ORE
November 90, 1382
SUDBURYMINING DIV.
RECEIVED
O CT 2 7 1996 vA.M. P.M.
v RECEIVED*-
OCT 3 O 1986
MINING LANDS SECTION
Distribution: J. J.R. D. Lindsay By: Charlie Vos
Laboratory Supervisor
Note: The metallurgical results contained in this report were obtained from laboratory testwork on samples submitted for evaluation and should not be interpreted as being necessarily indicative of full scale plant performance.
IH - , - . , INTROl
On October l, 1982, approximately 60 kilograms of Cowaching property ore was received by the Pamour Area Metallurgical Laboratory for metallurgical testing to determine if the ore would be amenable to processing at either the Pamour No. l or Schumacher Mine Concentrator. The ore sample was received as two separate lots; lot A was described as "straight disseminated", and lot B was described as "Marcasite" by the property owner. Each lot was tested separately. Head analyses as reported by the Pamour Analytical Laboratory are a* follows:
Considering past experiences with custom shipper's metallurgical test samples, it is doubtful that the grade of ore shipped would be as high as that of the test sample submitted for evaluation. The tendency in the past has been for potential shippers to sample only vein material or material containing visible sulphide mineralization, omitting wall rock which would normally be included with mined ore.
* ' .V'3.**. '
SUMMARY
Standard Bonds work index tests performed on both lots of Cowaching ore indicate that no grinding circuit throughput problems should be experienced. Both lots reported practically identical power consumption values, lot A being 17.6 Kwhr/D.S.T. and lot B being 17.7 Kwhr/Q.S.T. -Prpan this data, a laboratory rod mill grind of 30 minutes was chosjM^ 'to produce a flotation tail with a mesh of grind of approximately 6(U minus 200 mesh.
Total Gold recovery from the "A" ore sample achieved by standard Pamour test procedures was 90.981. Flotation recovery from a 0.517 OPT Au calculated head was 95.60%, produc ing a concentrate that assayed 1.858 OPT Au after one cleaning stage. The ratio of concentration based on Gold assays was 3.7:1 and the final flotation tailing averaged 0.023 OPT Au. Cyanidation recovery from the flotation cleaner concentrate reground to 901 minus 325 mesh averaged 95.17i. Lime consumption averaged 7.96 Ib/ton of ore and cyanide consumption averaged 0.56 Ib/ton of ore. Cyanide residues averaged 0.088 OPT Au.
Total Gold recovery from the "A" ore sample achieved by standard Schumacher test procedures wasfcJ)2-.J)6Jfci J?'lotation recovery from a 0.497 OPT Au head was 95^. 33.221 of the Gold in the head reported to the "Copper" cleaner concentrate at a grade of 5.795 OPT Au after one cleaning stage. The final flotation tailing averaged 0.022 OPT Au. Cyanidation recovery
from the combined Pyrite concentrate/Copper cleaner tail reground to 901 minus 325 mesh was 91.991, the cyanide test head represent ing 63.96% of the Gold in the ore at a grade of 0.979 OPT Au. Lime consumption averaged 13.02 Ib/ton of ore and cyanide consumption averaged 1.03 Ib/ton of ore. Cyanide residues assayed 0.075 OPT Au.
Total gold recovery from the "B" ore sample achieved by standard Pamour test procedures was 89.611. Flotation recovery from a 0.387 OPT Au calculated head was 94.831 producing a con centrate that assayed 1.512 OPT Au after one cleaning stage. The
ratio of concentration based on gold assays was 4.1:1 and the
flotation tailing from the third cycle assayed 0.020 OPT Au. Cyanidation recovery from the flotation cleaner concentrate reground to 901 minus 325 mesh averaged 94.51. Lime consump tion averaged 12.0 Ib./ton of ore and cyanide consumption averaged 3.45 Ib./ton of ore. Cyanide residues averaged 0.090 OPT Au.
Total gold recovery from the "B" ore sample achieved by standard Schumacher test procedures was 92.531. Flotation recovery from a 0.408 OPT Au calculated head was 97.11. 15.121 of the gold in the head reported to the "copper" cleaner con centrate at a grade of 8.932 OPT Au after one cleaning stage. The final flotation tailing averaged 0.012 OPT Au. Cyanidation recovery from the combined pyrite concentrate/"copper" cleaner tail reground to 9 01 minus 325 mesh was 93.491, the cyanide test head representing 82.801 of the gold in the ore at a grade of 1.440 OPT Au. Lime consumption averaged 6.06 Ib./ton of ore
and cyanide consumption averaged 0.42 Ib./ton of ore. Cyanide residues averaged 0.088 OPT Au.
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CONCLUSIONS
Laboratory test results indicate that Cowaching property ore can be processed successfully at either the Pamour #1 or Schumacher Mine concentrator with overall gold recovery in the 90% range. The Arsenic content of the copper cleaner concentrate produced from the "A" ore type was 0.879l and Q.136% from the MB" ore type. Depending on the quantity of ore processed at one time and on the amount of Arsenic al ready contained in Schumacher's copper concentrate, it is possible that a penalty for excessive Arsenic content be charged against Pamour by the Noranda smelter. Consideration should be given to allowing for this potential penalty in the contract with the shipper. All test data, calculations and analytical analyses are attached.
Code: H- High {-ID-100% approx.) M- Medium (-1-1OX approx.) - not detected < less than
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CYANIDATION HEAD ANALYSES
Cowaching "A" Cleaner Concentrate
Au, OPT
1.850
Ag,OPT
0.14
Cu %
0.01
Pb t
0.03
Zn t
0.03
Ni 1
0.31
Fe %
39.6
As %
1.21
Py %
40.22
Po 1
1.28
Cowaching "A" Py Con/Cu C1T1
Au, OPT
0.920
Ag , OPT
0.14
Cu %
0.01
Pb %
0.02
Zn %
0.01
Ni %
0.25
Fe %
28.0
As %
1.08
Py %
28.97
Po %
1.73
Cowaching "B" Cleaner Concentrate
Au , OPT
1.750
Ag,OPT
0.20
Cu 1
0.008
Pb %
0.012
Zn 1
0.004
Ni %
0.278
Fe 1
52.0
As %
0.168
Py l
40.55
Po %
1.55
Cowaching "B" Py Con/Cu ClTl
Au , OPT
1.440
Ag , OPT
0.10
Cu %
0.008
Pb %
0.01
Zn %
0.003
Ni 1
0.254
Fe %
40.0
As 1
0.150
Py 1
32.9
Po 1
1.60
g
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Grind: ^oft -44f Prsaeration Cyanidation fbtalInitial Density (1 solids)Retention Time - Hours 2LO A-SLime Strength - Ibs/ton sol'nCyanide Strength - Ibs/ton sol 'aLime Consumption - CaO Ibs/ton sol id i **-Cyanide Consumption - NaCN Ibs/ton solids gt.3
Product
Preg Sol'n
Titr. Sol'n
Wash Sol'n
Residue
Carbon
Weight
? oo
So
1000
9x00
—
Height i
l?- ft
S* C
t2^1
a.tr—
Assay (Au)
o.??#
o.aar0.037
0.07Z
*-
Units
7.?Wf
/./?pr1.3^/7o.?^
-
Distribution^
t a. Hws-/?^r.P.of
—
Assayed Head: 0.99^0
:alculated Head: Q.
OPT Au b*fore grinding OFT Au after grinding OPT Au
Recovery using assayed Head and Residuet Recovery using Gold in sol'n and Residues
Additiooal iol 'm9bt Bit
Cut In t fit.
Ho.
lTest Date: O2
Sample s
Grind:
'' Pu
t PrsssTStion CyanidAtion Total'Initial Density (t solids) IS 3CRetention Time ~ Hour* Jlo ASLime Strength - 1 bs X t on sol'nCyanide Strength - Ibs/ton sol'nLime Consumption - CaO Ibs/ton solidsCyanide Consumption - NaCN Ibs/ton solid*
Product
Preg Sol'n
Titr. Sol'n
Wash Sol'n
Residue
Carbon
Weight
39.0
~
(ooo
XoO
—
Height 1
5^/^S"
-~
fcr.7?/a /t
—
Xssay (Au)
0.41?
-
o.o^-/
0.^75"-*
Units
?.M57-.
^.6T7f
0.7J7
*-
Distribution4
70.213-
;U7?7.77'-
Assayed Head:
alculated Head:
OPT Au before grinding OPT Au after grinding OPT Au
Recovery using assayed Head and Residue i ,—lli^—— Recovery using Gold in sol'n and Residual 9fl.o3
Additional imalysls *
Agi
Cu: Sni
Mi t
Aft
STANDARD PAMOUR FLOTATION TEST RESULTS
Test #1156
Product
CI Con 1
CI Con 2
CI Con 3
Total
Product
Py Tl 1
Py Tl 2
Py Tl 3
Total
Weight
499.7
487.9
477.0
1464.6
Weight
1342.6
1530.6
1556.2
4429.4
COWACHING "B" ORE
Assay, Au-OPT
1.438
1.550
1.550
1.512
Assay, Au-OPT
0.008
0.016
0.020
0.015
Units , Au
718.569
756.245
739.350
2214.164
Units, Au
10.7408
24.4896
31.124
66.3544
Calc. Concentrate: 1.512 OPTAu
Calc. Py Tail: 0.015 OPT Au
(use 0.020)
Cleaner Tail #3; 99.7 grams @ 0.190 OPT Au
Flotation Recovery: 0.387 - 0.020.387
Cyanidation Recovery: 94. 5%
0 (100) - 94.83%
Total Gold Recovery; 0.945 x 94.83 - 8 9.611
PAMOUR STANDARD FLOTATION LABORATORY TEST REPORT POW CHEMICAL OF CMMM, INMTCB
OPT Au before grinding OPT Au after grinding OPT Au
Recovery using assayed Head and Residue: Recovery using Gold in sol'n and Residue:
Ag:
Additional Analysis * Preg Sol 'p
Fbi Hit
Co: In:
li
L Ontario
.Ministry ofNorthern Development and Mines t
Report of Work(Geophysical, Geological, Geochemical and Expenditures) 2.9ses MACLENNAN
900Mining Act - Do not use (haded areas below.
Type of Survey(s)
Claim Holder(s)
Address
township o' Area
.Prospector's Uc*nce"Ro.
Survey Company
Nami end Address of Author (of Geo Technical report)
jbate of Survey (from 6 to)
j Dax j Mo j Y r j Day j MoJtotai Miies of line Cut
Credits Requested per Each Claim in Columns at right
fc;r: .
\-li
p-"f
rr S'-
U if
Special Provisions
For first survey:
Inter 40 days. (This includes line cutting)
For each additional survey: ; using the same grid:
Enter 20 days (for each)
Geophysical D'V* "erClaim
Electromagnetic jt^
Magnetometer
- Other
Geological
Geochemical
Man Days
Complete reverse side and enter total(s) hi
Geophysical Davs pe, c*8im
REqEiVEtr*j - Magnetometer
ne?! 3 04986^- Othe'
MINING fei SECTION ~Geochemical
Airborne Credits
Note: S pecial provisions Electromagnetic credits do not apply to Airborne Surveys, j Magnetometer
Radiometric
Days perClaim
Expenditures (excludes power stripping)
Mining Claims Traversed (List in numerical sequence)
Type of WOIK Perlormeo
'erformed on Claim(s)
Calbulation of Expenditure Days Credits
Total ExpendituresTotai
Days Creoits
nstructionsTotal Days Credits may be apportioned at the claim holoe: s choice. Enter number 01 days credits per claim selected in columns at right.
Mi rt ing ClaimPrefix Number
S i 607399(pOf^rOpl.
to 67 JrfrO
Expend.Days Cr.
\js,0
37 o3?* 3
Mining ClaimPrefix Number
i
' - t
Total number of mining 4 claims covered by this i report of work. ^
Expend.Days Cr.
J ty^*
Date Recor
f Certification Verifying Report of Work1 hereby certifv that 1 have a personal and- intimate knowleciof of the facts set forth in the Report of Work BnnexecUvere^having performed the work or witnessed same during and 'or after its completion and the annexed repnn is true.
N*me and Postal Address of Person Certifying 7 .̂ ̂.
* Or/
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CM O
5: H-c o
.E\~ Oz:
Q.
H
oCD y—O.OO
,, Mining ,Right* qf the land' and land undor thn walere ' ~ of Wanaplt.tl Lake, are WITHDRAWN from staking out-
, under Sec. 43 ol the Mining Act, Order No. W.67/76 : dated Novir.1976, '"' File, 7598 v. 9. ,
