Purchasing Lead Ore
1. Purchasing Categories: Lead Concentrates, Lead Ores, Lead Sulfide Concentrates, Lead and Tin bulk concentrates, Lead and antimony bulk concentrates, Lead and Zinc bulk concentrates.
2. Trial Order Quantity: 200Mt.
3. Quality Standard Indication for Lead Ores.
(Please inform the content of the following elements)
| Grade |
Pb (Min)% |
Impurity (Max)% ≤ |
Cu |
Zn |
As |
MgO |
Al2O3 |
Grade 1 |
70 |
1.2 |
4 |
0.2 |
1.0 |
2.0 |
Grade 2 |
65 |
1.5 |
5 |
0.3 |
1.5 |
2.5 |
Grade 3 |
55 |
2.0 |
6 |
0.4 |
1.5 |
3.0 |
Grade 4 |
45 |
2.5 |
7 |
0.6 |
2.0 |
4.0 |
This standard is applied to lead concentrates getting from mineral processing of sulphide ores and used for lead smelting.
(1) The analysis index for valuable elements of gold, silver and bismuth in lead concentrates should be informed.
(2) The impurities of MgO and Al2O3 in lead concentrates can be considered as reference index .
(3) The analysis index for valuable elements of silver, cadmium and sulfur in lead concentrates should be informed.
(4) The impurities of SiO2, F,Sn and Sb in lead concentrates can be considered as reference index .
(5) The moisture content in the lead concentrates should be less than 12%,
and also less than 8% during heating-period.
(6) Other impurities should not be mixed into lead concentrates.
(7) The lead concentrates most have been delivered by bulk transport and small quantity can be packed. The same grade can be classified as one lot.
4.Inspection Method
The inspection carried out by SGS at the port of discharge should be final for both parties.
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