15TPH Tailings Lead & Barite Extraction Process in Iran · Introduction of the tailings process plant. Material: tailings contain lead 2% and barite 20%. Capacity: 15TPH. Country: Iran. Feeding size: 1mm. Raw mineral description: Mineral composition: 12,000 tons of tailings which contain lead 2% and barite 20%. Customers requirements: increase the lead and barite grade as much as possible.