Next Article in Journal
Evaluation Study on Iterative Inverse Modeling Procedure for Determining Post-Necking Hardening Behavior of Sheet Metal at Elevated Temperature
Next Article in Special Issue
Bioleaching for Copper Extraction of Marginal Ores from the Brazilian Amazon Region
Previous Article in Journal
A Comprehensive CFD Model for Dual-Phase Brass Indirect Extrusion Based on Constitutive Laws: Assessment of Hot-Zone Formation and Failure Prognosis
Previous Article in Special Issue
Recycling the GaN Waste from LED Industry by Pressurized Leaching Method
Article Menu
Issue 12 (December) cover image

Export Article

Open AccessArticle
Metals 2018, 8(12), 1041; https://doi.org/10.3390/met8121041

Germanium and Indium Recovery from Zinc Metallurgy by-Products—Dross Leaching in Sulphuric and Oxalic Acids

Instytut Metali Nieżelaznych (IMN), Sowińskiego 5, 44-100 Gliwice, Poland
*
Author to whom correspondence should be addressed.
Received: 8 November 2018 / Revised: 3 December 2018 / Accepted: 6 December 2018 / Published: 8 December 2018
Full-Text   |   PDF [2475 KB, uploaded 8 December 2018]   |  

Abstract

Leaching of the dross containing 28.7% Sn, 18.0 Pb, 10.6% Cu, 8.9% Ge, 8.1% Zn, and 2.7% In in sulphuric and oxalic acid solution was investigated. The dross was obtained from thermal oxidation of by-product alloy generated during a New Jersey (NJ) zinc rectification process. The influence of different process conditions (temperature, time, acid concentration, and solid to liquid ratio) on leaching yield of the main components was determined. Additionally, the impact of oxidant (hydrogen peroxide, sodium hypochlorite, manganese (IV) oxide) addition on leachabilities was investigated. Germanium leaching yields exceeding 80% were observed for both sulphuric and oxalic acid solutions. Indium leachability in H2C2O4(aq) was found at the level of 20%, while in H2SO4(aq), it strongly depends on process temperature, and reached 80% at 80 °C. View Full-Text
Keywords: germanium recovery; indium recovery; tin recovery; New Jersey process; leaching; hydrometallurgy germanium recovery; indium recovery; tin recovery; New Jersey process; leaching; hydrometallurgy
Figures

Graphical abstract

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Drzazga, M.; Prajsnar, R.; Chmielarz, A.; Benke, G.; Leszczyńska-Sejda, K.; Ciszewski, M.; Bilewska, K.; Krawiec, G. Germanium and Indium Recovery from Zinc Metallurgy by-Products—Dross Leaching in Sulphuric and Oxalic Acids. Metals 2018, 8, 1041.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Metals EISSN 2075-4701 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top