METHOD FOR EXTRACTING LEAD FROM LEAD-CONTAINING RAW MATERIALS

• Main Authors: KUZNETSOV, OLEG KONSTANTINOVICH, KHODOV, NIKOLAI VLADIMIROVICH
• Format: Patent
• Language: English; French; Russian
• Published: 30.03.2000
• Edition: 7
• 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

The present invention relates to a lead extraction method that involves feeding melted potassium hydroxide, lead-containing raw materials and an oxygen-containing gas into a reaction area at a temperature of between 600 and 700 DEG C. The lead is extracted from the reaction area and a first aqueous...