الزنك الرصاص تعويم متسلسل, How to Process Oxidized Lead-Zinc Ore by Flotation - 911 Metallurgist. Mar 19, 2017 . The problem of treating oxidized lead-zinc ores for the production of high-grade lead zinc concentrates is a complex problem due to the nature of the ores and to the soft s characteristics of the lead and zinc minerals.