Purchasing Copper Materials
Our company purchases the following regularly:
Copper oxide ores, Tailing ores containing copper, copper mud, copper slag and sponge copper (The Cu content should be 8% min), materials containing copper and molybdenum (Cu content should be 8% min, Mo content should be 2% min), copper and cadmium slag (Cu content should be between 5% and 20%), silver and copper slag (Cu content should be 1.5% min), all slag containing copper that can be smelted.
Copper Raw Materials Categories
Copper oxide ores, copper ash, sponge copper, waste bluestone, copper mud and slag from Pb&Zn smelting factory, waste slag from treating gold & silver, anode furnace refining slag, cathode furnace refining slag, the converter blowing slag, the refining slag of black copper, impure-red-copper, copper, nickel and zinc alloy slag, copper and tin alloy slag, copper and nickel alloy slag, the furnace slag from casting copper alloy.
NO.
|
Category
|
Element & Production line
|
Specification Required |
1 |
Cupronickel-Honey |
Copper, nickel and zinc alloy scraps |
Cu 54-70%,Zn 18-30%,
Ni 2.5-15% |
2 |
Bronze scraps |
Copper and tin alloy scraps |
Cu 70-75%
Sn 10-20% |
3 |
Copper and nickel alloy scraps |
Copper and nickel alloy scraps |
Cu 27-42%
Fe 2-4%
Ni+Co residue |
4 |
Copper slag |
the furnace slag when producing copper alloy |
Cu 6-30%
Zn 5-20% |
Slag from refining furnace |
Cu 10-60% |
Anode furnace refining slag |
Cu 10-20% |
Cathode furnace refining slag |
Cu 10-25% |
Refining slag of black copper\impure-red-copper |
Cu 25-35% |
Converter blowing slag |
Cu 30-40% |
Note: Our group possesses eight professional production lines to process the copper oxide ore and materials containing copper.
Inspection and acceptance
The inspection for copper materials should be carried out by the technical supervision department of buyer, or a third party inspectorate can be consigned to make the inspection (e.g. SGS, Alex Stewart in China).The method of sampling from Cu and Cu alloy and other related matters can be negotiated by both parties of seller and buyer. Generally, the inspection will be done by the third party recognized internationally. |