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(2020) Mineralogical Cycle of Pb(II) in a Sinter Plant of Iron and Steel Industry

Mankovics M, Topa BA, Pekker P, Meskál L, Harman Tóth E & Weiszburg TG


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08r: Plenary Hall, Friday 26th June 06:57 - 07:00

Milán Mankovics
Boglárka Anna Topa View abstracts at 2 conferences in series
Péter Pekker View abstracts at 5 conferences in series
László Meskál
Erzsébet Harman Tóth
Tamás Gábor Weiszburg View all 3 abstracts at Goldschmidt2020 View abstracts at 2 conferences in series

Listed below are questions that have been submitted by the community that the author will try and cover in their presentation. To submit a question, ensure you are signed in to the website. Authors or session conveners approve questions before they are displayed here.

Submitted by Fulvio Di Lorenzo on Monday 22nd June 23:21
Do you think that one of the steps during the mineralogical cycle of Pb could be a more suitable target for a Pb-recovery process? Is the elevated density of Pb a property that can be used to enhance the separation of the Pb-bearing phases?
Answer for the first question: - The lead could be recovered from after the dust extraction by the electrofilter, here is the highest lead concentration of the system. It should be led out from the system in wet medium. Here we would have 2 phases, a solution and solid mineral mixture, both containing lead minerals or ions. From the solution the solid mineral mixture is separable (for example by centrifuge),then the only solid lead mineral, the hydrocerussite is able to dissolve in acids. - In the other case, when the solution is led out from the system, many components, such as sodium, potassium, chlorine and lead-ions could be recovered by hydrometallurgical methods. Answer for the second question: - Every lead mineral has a high specific gravity, in each case the value is between approximately 6 and 7 grams per cubic centimeter. However, the high density is compensated by the grain size. Only the fine (I mean maximum few micrometers) fraction dust samples contain lead minerals. Due to the strong stream of the flue gas, in this case the effect of high specific gravity of the lead phases isn’t essential in the air. On the other hand the rate of the extraction by the electrostatic precipitator doesn’t depend on the density either.

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