SEPARATION TEST OF GALENA LEAD ORE-GALENA ORE BENEFICIATION MACHINES
                                                                                                                                                                          ---FORUI

 Beneficiation is the process by which the concentration of the valuable constituent in an ore is increased while impurities are reduced to practically acceptable levels. As applied to metallic minerals, it involves upgrading of the valuable metal while reducing the gangue and other minerals to acceptable levels in the ore.  Minerals which can be separated by gravimetric methods must have measurable difference in density.

Here are tests for beneficiation of galena lead ore in Nigeria.

1.  Jigging test  

Jigging test of the galena was carried out on a laboratory jig (Forui jig) that was powered by 0.5hp motor. A sieve that is slightly bigger than the size of materials to be jigged was laid in the jig. Steel balls of size 5mm diameter were arranged as ragging on the floor of the screen in three layers. Before jigging, the material has been crushed and screened into a certain size range. 500g of each close sized sample were weighed and transferred to the jig. Water was supplied to the jig and the motor was switched on while addition of chamber water continued intermittently. Jigging was stopped after 5minutes and the chamber was opened to discharge the concentrate. Collection of the overflow was continuous throughout the jigging cycle. The mass of the concentrates and tailings were measured and recorded after drying.

2. Shaking table test

The inclination of the table was 45 degree. Five hundred grams sample was fed gradually to the feed trough of the shaking table at a rate of about 60g/minute. The water was supplied at a rate of about 300ml/minute. Collection of concentrates and tailings was continuous throughout the process. The concentrates and tailings for each size fraction were put to constant weight in well labeled trays after drying. The mass of the concentrates and tailings were measured and recorded.

The results showed that lead ore responded well to beneficiation by jigging, and shaking table separations. The best combination of grade and recovery was obtained by jigging separation. Higher lead grades could be achieved by gravity separation. The gravity separation methods increased the value of lead and gold as well in the tailings. Further work is required to extract free gold from the tailings like amalgamation etc.

Here Forui is professional manufacturer of kinds of mining beneficiation equipment and free test can be done free for you if samples about 15 kgs can be available. A processing and beneficiation line for Lead ore can be supplied including galena lead jig separation machine, crusher, conveyor, vibrating screen, etc.