Our history News Metalls Wood production  
 
  29.10.2008
You are welcomed to the official website of JSC Primorsky group of mines and JSC A& IR Mining group of companies

You are welcomed to the official website of JSC Primorsky group of mines and JSC A& IR Mining group of companies


29.10.2008
In the 25th of June, 2008 there were annual stockholders meetings of the Primorsky and A&IR Mining.

In the 25th of June, 2008 there were annual stockholders meetings of the Primorsky and A&IR Mining.


29.10.2008
The annual 2007 report of the JSC Primorsky group of mines and JSC A& IR Mining Boards of Directors and Administrations.

The annual 2007 report of the JSC Primorsky group of mines and JSC A& IR Mining Boards of Directors and Administrations.


 
     
 
Metalls



Tungsten concentrate (Scheelite)

Assays:

(Range) (Average)
WO3 50 - 56%

53%

P 1,4 - 2,5% 2,0%
S 0,3 -0,7 %

0,45%

Cu < 0,2 % 0,1 %
Bi <0,03 % 0,02%
Mo <0,04 % 0,02%
Fe 0,3 - 1,0% 0,5 %
As <0,01 % 0,005%

Mineralogy:

 

CaWO 4 67,5%
CaCO 3 18%
Ca5 (PO4)3 7%
SiO2 4,5 %
MeS( FeS ) 3,0 %

Moisture: 3,0-6,0 %
Packing: - 1MT big-bags

Copper concentrate

Range

Average

Range

Average

Cu15-19 %
17 %
S
25 30 %
27,5 %
Au
33-57 / (g/t)45 / (g/t)Pb0,1- 0,5 %0,3 %
Ag100300/ (g/t)200 / (g/t)SiO21,5 6%3,7 %
Bi0,3 0,8 %0,55 %WO30,03 0,22 %0,12 %
As0,4 2,6 %1,5 %CaO1,5 4,0 %2,8 %
Zn0,1-0,3 %0,2 %Mg0,5 2,0 %1,2 %
Fe34-40 %37 %

Moisture: 7,0 12,0 %
Packing: - 1MT big-bags

Products of conversion

Ammonium Paratungstate

WO 3 < 88.5% min
Al/Cr/Co/Mg/Mn ≥ 5
Ni/Ti/V/Ca > 5
As/P/S ≥ 7
Bi/Cd/Cu/Pb/Sn ≥ 1
Fe/Si/K/ Na ≥ 10
Mo ≥ 20
Sb ≥ 2
Apparent Density 1.6 2.4 /3

Tungsten trioxide

WO 3 < 88.5% min
Al/Cr/Co/Mg/Mn/Ni/V 5
Bi/Cd/Cu/Pb/Sn 1
Ca/Na/P/S 7
Fe/Si/K 10
Mo 20
Sb 2
As 9
Apparent Density 2.4 3.0 /3


 
 

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Copyright JSC A&IR Mining 2008