An estimated 10 million tons of lead/zinc veins are spread over eight States in Nigeria. Joint venture partners are encouraged to develop and exploit the various lead/zinc deposits all over the country. Zinc is usually found associated with lead and an estimated 10 million tonnes of lead/zinc veins are spread over eight States of Nigeria have been found.
Lead and zinc were a significant source of export revenue, and Nigeria was the world's largest exporter of columbite. Stagnation in the solid minerals sector cannot simply be attributed to the meteoric rise of oil: poor management by state-owned enterprises - compounded by corruption and an incoherent exploitation of resources - has also played its part.
An estimated 10 million tonnes of lead and zinc veins straddle eight of Nigeria's states, with the 700,000 tonnes in Abakiliki in Ebyoni State representing the most favourable prospect.
Lead and Zinc mining production line:
Stage 1. Lead and Zinc are sent into hopper by truck, and then lifted into storage silo by bucket elevator.
Stage 2. Lead and Zinc comes from hopper and feed into main mill uniformly by vibrating feeder, then goes into pipes.
Stage 3. In the grinding process, qualified final product after screening system will go into powder collector by pipes, and then go out from outlet. Unqualified product will be sent back to regrind until it is qualified.