Jarogain Process: A Hydrometallurgical Option to Recover Metal Values from RLE Zinc Residue and Steel Dust

Pertti Koukkari, Petteri Kangas, Mari Lundström, Sami Kinnunen, Jussi Rastas, Pekka Saikkonen

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review


The novel Jarogain process combines treatment of the jarosite residue of zinc manufacturing and processing of arc furnace dust from steelmaking to a holistic recovery technology. The new hydrometallurgical approach is targeted to recover the major constituents (Fe, Zn, Pb) as well as valuable components such as Ag, Au, In and Ga from the jarosite-dust mixture as reusable concentrates. The fractionation process proposed by VTT and Aalto University takes advantage of jarosite being readily fine powder and directly available for wet chemical processing. Jarogain process provides a low cost and energy efficient opportunity for jarosite utilization as value added products. The experimental proof-of-concept of key stages of the process will be outlined with a comparison of available pyrometallurgical treatments of jarosite waste. The techno-economical assessment is based on estimated investment and variable production cost using the discounted cash flow (DCF) analysis.
Original languageEnglish
Title of host publicationExtraction 2018
Subtitle of host publicationProceedings of the First Global Conference on Extractive Metallurgy
ISBN (Electronic)978-3-319-95022-8
ISBN (Print)978-3-319-95021-1
Publication statusPublished - 2018
MoE publication typeA4 Article in a conference publication
EventExtraction 2018 - Ottawa, Canada
Duration: 26 Aug 201829 Aug 2018

Publication series

SeriesMinerals, Metals and Materials Series


ConferenceExtraction 2018
Abbreviated titleExtraction 2018

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