Technology for processing balanced feed charge based on copper-, lead-containing products
DOI:
https://doi.org/10.31643/2026/6445.09Keywords:
copper, lead, zinc, natural gas, smelting, extraction, processing.Abstract
The study examined the behavior of copper, lead, zinc, and arsenic during the reductive-oxidative processing of a balanced charge under scaled-up technology conditions. The optimal parameters for ensuring high comprehensive recovery of metals into targeted products were identified: lead into rough lead, copper into matte, and zinc into slag. The feasibility of conducting reductive-oxidative smelting of a balanced charge was demonstrated. Optimal technology parameters were established: gas blowing time with natural gas – 20 minutes; with oxygen – 20 minutes; methane consumption – 1.7 times higher than that from the stoichiometric requirement for the reduction of lead compounds; oxygen consumption – 1.4 times higher than that from the stoichiometric requirement for the oxidation of zinc and iron sulfides; temperature – 1523 K. High rates of comprehensive selective recovery of metals into targeted products were achieved: lead into rough lead – 97.6%; copper into matte – 98.6%; zinc into slag – 56.8%, into matte – 1.7%, into dust and gases – 41.5%; arsenic and antimony into dust – up to 97.4% and 90%, respectively. A balanced charge processing technology has been developed for processing substandard intermediates of copper and lead production.
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Copyright (c) 2024 N.K. Dosmukhamedov, E.E. Zholdasbay, A.A. Argyn, Yu.B. Icheva, M.B. Kurmanseitov
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