Boiler for molten metals and a method of boiling and refining a molten metal

• Main Author: KRUGER, ALBERT
• Format: Patent
• Language: English; French; German
• Published: 08.04.1981
• Subjects: CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; FERROUS OR NON-FERROUS ALLOYS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; METALLURGY; PRETREATMENT OF RAW MATERIALS; PRODUCTION AND REFINING OF METALS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TREATMENT OF ALLOYS OR NON-FERROUS METALS

A boiler for molten metals, especially zinc or cadmium, has a vertical perforated inner tube (1) surrounded by an outer tube (3), the annular space between the tubes being packed with a refractory lump material (2) to which molten metal is fed. The outer surface of the outer tube (3) is heated, e.g. with hot gases from a burner, and metal vapour is withdrawn from the interior of the inner tube (1), to be used for example in zinc dust or zinc oxide production.