Purchasing Zinc Ore
1. Purchasing Categories: Zinc Concentrates, Zinc Ores
2.Trial Order Quantity:200Mt
3.Quality Standard Indication for Zinc Ores
(Please inform the content of the following elements)
Quality Standard for Zinc Concentrates
| Grade |
Zn %≥ |
Impurity ≤ % |
Cu |
Pb |
Fe |
As |
SiO2 |
Grade 1 |
55 |
0.8 |
1.0 |
6 |
0.2 |
4.0 |
Grade 2 |
50 |
1.0 |
1.5 |
8 |
0.4 |
5.0 |
Grade 3 |
45 |
1.0 |
2.0 |
12 |
0.5 |
5.5 |
Grade 4 |
40 |
1.5 |
2.5 |
14 |
0.5 |
6.0 |
Notice
1. The content of cadmium and fluorine in zinc concentrates should be less than 0.3% respectively. The antimony content should be less than 0.03%. The tin content should be less than 0.1%. The required contents of nickel and germanium can be negotiated by both parties.
2. The iron content in Marmatite, IV grade, should be less than 18%. Please mark the shape and specification. |
This standard is applied to zinc concentrates getting from mineral processing of sulphide ores and used for zinc smelting.
(1).The moisture content in the concentrates should be less than 12%,
and also less than 8% during heating-period.
(2).Other impurities should not be mixed into concentrates.
(3).Packing
The 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 the final for both parties.
|
