aeration flotation cells for copper recovery in greece

The flotation cells are designed for a variety of throughput requirements ranging from small pilot sized cells with a diameter of 08m processing 6 – 10 m 3 h of feed to cells with a diameter of 65m handling feeds of 1500 m 3 h The flow rate is dependent on the feed pressure and rate of concentrate removal

The present study investigates the effect of regrinding and aeration on the separation of pyrite from gold in copper rougher flotation tailings 007 Cu 061gt Au tail grades An aeration stage was applied both at the head of copper flotation copper rougher feed and after regrinding of the copper rougher tailings before goldpyrite selective flotation

Unique flotation mechanism At the heart of each Wemco 11 cell is a patented rotordisperser that delivers intense mixing and aeration Ambient air is drawn into the cell uniformly distributed throughout the pulp providing optimum airparticle contact

Copper 2019 Newcrests Industry First Application of Eriez HydroFloat Technology for Copper Recovery Originally presented at Copper 2019 In the face of declining copper head grades and a tightening regulatory environment around the use of wet tailings dams the processing of copper ores at coarser particle sizes has become a focal point for

Oct 01 2010 · At the end of the 10 min flotation 90 copper recovery and 108 concentrate grade were achieved Meanwhile pyrite recovery was low ie 29 recovery at the end of the 10 min flotation Pyrite recovery was noticeably higher than nonsulphide gangue only at the beginning of the flotation due likely to composite with chalcopyrite

The effects of the duration of aeration on copper and zinc recovery are given in Figure 2 Copper recovery was improved with aeration Zinc recovery was also improved with aeration but to a lesser extent Aeration times of over 20 min increased zinc recovery However zinc recovery did not increase at pH115 Figure 2

The recovery of these copper minerals by flotation or hydrometallurgy from ores typically containing 05TCu open pit mines and 12TCu underground mines is of great commercial importance

CavTubes can also be used as part of a preaeration system that can be applied independently in a flotation feed line or part of a separate equipment package to increase the recovery of overloaded circuits or improve the flotation response of “hardtofloat” material Applications include • Aeration of Column Flotation Cells

It flotation cell after grinding and flotation test was performed for ten minutes with a Humboldt Wedag flotation machine Six separate concentrates were collected at 15 sec 30 sec I min 2 min 5 min and 10 min intervals The pulp pH was adjusted to nearly 118 before flotation at all the tests The chemical analysis of the products was done

One disadvantage of flotation is that efficiency reduces for size range below 100 μm To overcome this constraint a new stirrerless coneshaped flotation cell was developed in Germany Bahr 1982 now called the Pneuflot This cell uses a novel aeration technique in which minute bubbles are introduced into the slurry before it reaches the cell