Preliminary Investigation on Leaching Behavior of Zinc ash

• Autorzy: Rudnik E. , Włoch G. , Szatan L.

Identyfikatory

DOI

10.24425/122406

• Języki publikacji: EN

Abstrakty

EN

Oxide fraction of industrial zinc ash from hot dip galvanizing was characterized in terms of composition and leaching behaviour in 10% sulfuric acid solution. Waste product contained about 68% Zn, 6% Cl, 3% Al, 1% Fe, 0.7% Si, 0.5% Pb and minor percentages of other metals (Mn, Cu, Ti etc.). It consisted mainly of zinc oxide contaminated with metallic zinc, zinc hydroxide chloride and silica. Dissolution of the metals from the material was determined as a function of solid to liquid ratio (50-150 kg/m³), temperature (20°C and 35°C) and agitation rate (300 and 900 rpm). The best results (50 g/dm³ Zn(II) at 78% zinc recovery) were obtained for 100 kg/m³ and the temperature of 20°C. Increase in the agitation rate had weak effect on the zinc yield. The final solutions were contaminated mainly by Fe(II, III) ions. Leaching of the material was an exothermic process with the reaction heat of about 800 kJ/kg.

Słowa kluczowe

EN

zinc ash; hydrometallurgy; leaching; recovery

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2018
• Tom: Vol. 63, iss. 2
• Strony: 801--807
• Opis fizyczny: Bibliogr. 27 poz., fot., rys., tab., wzory

Twórcy

autor

Rudnik E.

• AGH University of Science and Technology, Faculty of Non-Ferrous Metals, Al. Mickiewicza 30, 30-059 Kraków, Poland

autor

Włoch G.

• AGH University of Science and Technology, Faculty of Non-Ferrous Metals, Al. Mickiewicza 30, 30-059 Kraków, Poland

autor

Szatan L.

• Oksymet, 23e Piłsudskiego Str., 32-050 Skawina, Poland

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Uwagi

EN

1. This research work was realized under the project no. POIR.01.01.01-00-0032/16 in the frame of Smart Growth Operational Programme 2014-2020.

PL

2. Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).