Enlarged laboratory experiments of ferrous metallurgy dust sintering with calcium chloride
Dosmukhamedov N.K. Koishina G.M. Zholdasbay E.E. Argyn A.A. Icheva Y.B.
2025Institute of Metallurgy and Ore Beneficiation JSC
Kompleksnoe Ispolzovanie Mineralnogo Syra
2025#335Issue 459 - 66 pp.
In this work, large-scale laboratory experiments were carried out on high-temperature sintering of clinker with CaCl2. New data were obtained on extracting zinc, lead and related impurities into the targeted products of high-temperature sintering under process scaling conditions. The optimal parameters for high-temperature sintering have been established: t =900 °C, τ = 60 minutes, CaCl2 consumption is 1.3 times higher than its consumption from the stoichiometric required amount (SRA). High-quality zinc sublimates were obtained. The maximum extraction of zinc into sublimates was achieved-98.2%. New data on changes in the quantitative ratios of clinker ingredients under sintering conditions have been obtained. It has been established that zinc in the form of chloride is concentrated in sublimations. The obtained results form the basis of the final stage of the chlorination technology for processing lead-containing zinc dust from ferrous metallurgy and were used in the developing of a general technology for the selective extraction of zinc and lead into marketable products.
chlorinating sintering , dust , extraction , lead , zinc
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Satbayev University, 22 Satbayev St., Almaty, 050013, Kazakhstan
O.A. Baikonurov Zhezkazgan University, 1b Alashahan st., Zhezkazgan, 100600, Kazakhstan
Satbayev University
O.A. Baikonurov Zhezkazgan University
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