Driving hearth

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Driving stove for the separation of lead and silver in the course of the Seiger process in the Saigerhütte Grünthal

Use of the forcing stove

The driving hearth (also driving furnace or lead hearth ) was used to separate silver from raw lead. The cupellation was used as the method .

construction

An appropriately designed furnace enables raw lead to be melted in a refractory pan by passing flames over it. When the temperature is high, air is forced through the melt. The existing lead is oxidized and continuously pushed out through an opening by the air flow until only metallic silver ( silver , burnt silver) remains.

See also

• Silver - extraction from lead ores

literature

• HA Pierer: Pierer's Universal Lexicon of the Past and Present . Ed .: HA Pierer. 4th edition. tape 1 . Publishing house HA Pierer, Altenburg 1857 ( Pierer's Universal Lexikon Volume 1: A-Aufzwingen ).

Web links

• Description of the forcing hearth in Pierer's Universal Lexicon .
• Description of the driving hearth in the context of silver mining in Meyers Konversations-Lexikon .