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Keywords from Image Description:
Meyers sa. extraction of sulfur extraction du soufre Schwefelgewinnung Fig Meiler zum Ausseigern des Schwefels Fig Sublimation des Schwefels aus gueisernen Retorten Fig Grittis Apparat zum Ausschmelzen des Schwefels Fig Lamys Apparat zur Raffination des Schwefels Fig Lngsschnitt Fig Querschnitt Fig Dujardins Apparat zur Raffination