Process for Recovery of Heavy Metal Oxides from Heavy Metal-Containing Sources

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This invention describes a method for recovering heavy metal oxides from sources containing heavy metals. It involves melting the heavy metal-containing material, treating the molten material with oxygen or an oxygen-containing gas, and collecting the heavy metal oxides that evaporate from the melt, with some steps performed under vacuum or reduced pressure conditions.

Use CasesContent extracted from patent full text and abstract with AI.

• Recycling of heavy metals from industrial waste or residues
• Recovery of valuable heavy metal oxides from scrap or contaminated materials
• Improved extraction of specific metal oxides for industrial use
• Environmental remediation of heavy metal-contaminated materials

BenefitsContent extracted from patent full text and abstract with AI.

• Increases efficiency in recovering heavy metal oxides from various sources
• Reduces environmental impact by enabling recycling of hazardous heavy metals
• Allows for selective recovery and purification of heavy metal oxides
• Operates under vacuum or reduced pressure to enhance yield and reduce unwanted reactions
• Supports resource conservation by reusing extracted metals

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Patent Abstract

Die Erfindung betrifft ein Verfahren zur Rückgewinnung von Schwermetalloxiden aus schwermetallhaltigen Quellen umfassend die Schritte a) Bereitstellen mindestens einer schwermetallhaltigen Quelle, b) Schmelzen der mindestens einen schwermetallhaltigen Quelle, c) Behandeln der mindestens einen schmelzflüssigen schwermetallhaltigen Quelle mit Sauerstoff oder einem sauerstoffhaltigen Gasgemisch, und d) Rückgewinnung der aus der schmelzflüssigen schwermetallhaltigen Quelle verdampften Schwermetalloxide, wobei die Schritte c) und/oder d) bei Unterdruck oder Vakuum erfolgen.