Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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GEA Group AG
Original Assignee
Metallgesellschaft AG
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Filing date
Publication date
Application filed by Metallgesellschaft AGfiledCriticalMetallgesellschaft AG
Publication of ES215281A1publicationCriticalpatent/ES215281A1/en
A process for obtaining lead from powders or sludges containing lead sulphate without having to agglomerate them into pieces and avoiding the formation of dust, characterized in that the powders or sludges are fused with coal, iron oxide and sodium sulphate or sulfate, if necessary, adding materials that lower the melting point, all at temperatures of 900 to 1,100ºc, separating the melted material into lead and slag. (Machine-translation by Google Translate, not legally binding)
ES0215281A1953-06-051954-05-11A procedure for the obtaining of lead from dust or sludge (Machine-translation by Google Translate, not legally binding)
ExpiredES215281A1
(en)
Fusion procedure for the use of mineral reduction sponges by gas without fusion and especially from iron minerals (Machine-translation by Google Translate, not legally binding)
A procedure for the metalurgical treatment of pulverulent or fine grain minerals, especially iron minerals (Machine-translation by Google Translate, not legally binding)
Improvements in or relative to the foundry of metallic materials containing lead and zinc in a high oven (Machine-translation by Google Translate, not legally binding)
Procedure for the production of foundry, steel and iron, starting from powdered iron minerals and particularly from pirate ashes (Machine-translation by Google Translate, not legally binding)