Eksperymentalna charakterystyka procesu ługowania Pb(ll) z odpadowych szkieł CRT w roztworach kwasu azotowego(V)

W artykule przedstawiono wyniki eksperymentalnych badań laboratoryjnych dotyczące wpływu różnych parametrów fizyko-chemicznych na ługowanie Pb(ll) z odpadowych szkieł ołowiowych w roztworach kwasu azotowego(V). Badanie dotyczyło szkieł pochodzących z odpadowych lamp katodowych zużytych monitorów CRT.

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The paper presents the results of experimental laboratory studies concerning the influence of different physico-chemical parameters on the leaching of Pb(ll) from lead waste glass in solutions of nitric acid(V). The research focused on waste glass from cathode ray tubes of used CRT monitors. Alm of this study was to determine the parameters of an effective process for the Pb(ll) leaching from waste CRT glass with solutions of nitric acid(V). The effect on the process of following physical and chemical factors such as: concentration of reagent, particle size, stirring intensity, the ratio of solid to liquid phase (solid/liquid), temperature and leaching time was examined. Analysis of the results of Pb(ll) leaching from waste CRT glass in solutions of nitric acid(V) allowed to determine the optimal conditions for achieving the greatest grade of Pb(ll) leaching. The results obtained thus confirm the feasibility of Pb(ll) from waste CRT glass into an aqueous solution by hydrometallurgical process.