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slag

method, process, technology

A mixture of non-metallic matter and by-products occurring in the smelting of ore or the melting of metals.

Blast furnace slag is a by-product in the smelting of pig iron in a blast furnace.

Traveljournal 1814

Traveljournal 1825

Traveljournal 1845

  • Fischer, Johann Conrad: Tagebücher. Bearbeitet von Karl Schib. Schaffhausen 1951.
  • Schlacke. In: Brockhaus’ Kleines Konversations-Lexikon, fünfte Auflage, Band 2. Leipzig 1911, S. 635 (Zeno.org, Stand 1.12.2023).
  • Schlacke. In: Pierer’s Universal-Lexikon, Band 15. Altenburg 1862, S. 204 (Zeno.org, Stand 1.12.2023).

Cite as: slag. In: Travel Reports of a Pioneer: Digital Edition of the Travel Journals of Johann Conrad Fischer 1794–1851. Published by Franziska Eggimann. Edited by Franziska Eggimann, Nicolau Lutz, Valerija Rukavina und Christopher Zoller-Blundell. Schlatt 2023, Version 1.2, https://johannconradfischer.com/en/keywords/gfa-keywords-336, viewed on 6 June 2025.

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Primary oven with slag buckets (photographer unknown, 1932)