Treatment of arsenic-containing matte
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The treatment of lead dross in a reverberatory furnace yields some arsenic-containing copper matte, whose main chemical components are 20% lead, 20% arsenic, and 35–45% copper. Question: 1. How can we minimize the production of arsenic-rich matte in the reverberatory furnace? 2. What treatment processes are used for arsenic-containing matte to comprehensively recover copper, lead, and arsenic from it?
-- Haha, the levels of lead and arsenic are quite high. --
For low-output arsenic-containing blister copper, do you need to set up an open circuit? What should be used for dust collection? Some arsenic-containing dust is intercepted at the appropriate location and sold, rather than being returned to the system for recycling.
The arsenic-containing ash produced by the 3# dalee reflection furnace was not returned to the system for recycling
2# FILTRATION-MAN: Due to the high arsenic content, matte can only be sold at a low price, and lead cannot even be valued.
A bag filter can be used for dust collection
The oxygen pressure alkali leaching-electrolysis method can be used for the comprehensive recovery of lead, arsenic, and copper.
Leaching can be carried out using pressurized oxygen in a sulfuric acid system
Copper is leached by sulfuric acid oxidation at normal pressure and low temperature; the leaching residue is reprocessed to recover lead, antimony, and silver, while copper is deposited electrochemically from the leachate. Arsenic dust and copper oxide slag are volatilized as intermediate products.