Billet treatment
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Current composition of the material: Cu 25%, Pb 20%, Sb 5%, Bi 3%, Fe 20%, S 20%. Wet processing is intended to be used; I would like to discuss this matter with everyone. Please share your opinions on what would be suitable and what the estimated costs would be
Haiyou, you should now have a mature solution in place; could you share it?
The cost of this wet treatment is a bit high; let’s use the thermal treatment instead! !
Is there a solution for the wet method? Hope Haiyou will share it
I carry out hot leaching of matte (Cu30%, S18%) using atmospheric-pressure sulfuric acid; the Cu leaching rate is 90–95%. Excluding the cost of purchasing the ore, the gross profit before milling for each ton of copper produced (from leaching to copper electrowinning) is around 20,000 yuan, while the processing cost per ton of copper is 13,000 yuan, which translates to 4,000 yuan per ton of matte. Attached are images of my electrodeposited copper samples.
Sorry, I can’t send pictures :L
I can only explore this from the perspective of wet processing methods. If wet processing must be used, and since it is matte copper, considering the use of a mixture of ferric sulfate and sulfuric acid {【Fe2(SO4)3】+H2SO4} for leaching is an option; in this case, the temperature needs to be raised above 35 degrees!