Froth Flotation (Sulphide & Oxide)

Froth Flotation (Sulphide & Oxide) 2017-04-04T06:57:31+00:00
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Solid concentration froth concentrate pumping (5 replies and 1 comment)

9 months ago
Romain CADENAT 9 months ago

Dear All 

I need to transfer some phosphate froth concentrate (coming from flotation cells) and feed a dewatering hydrocyclone. What should be my average solid concentration for a correct pumping ? I consider 21% solid (weight basis). Do I need to dilute any more? Is a froth pump well suited to feed my hydrocyclone ?

Kind regards

Paul Morrow
9 months ago
Paul Morrow 9 months ago

Hi Romain,

this will pump fine. No need to dilute further. Be sure to have a good head over your pump intake for steady feed pressure. I see no issues.

9 months ago
SURESH BEVARA 9 months ago

Dear sir,

20-25 %solids by weight fine. To avoid  froth pump u can use dewatering screw instead of dewatering cyclone.

8 months ago
Romain CADENAT 8 months ago

Thank you for your answers. 

I am in contact with a pump manufacturer and he advise a slurry pump instead of a froth pump, because I want to feed a Hydrocyclone. Does it seem a good application for a slurry pump ? Have you ever met this configuration ? 


8 months ago
MillMan 8 months ago

A slurry pump is best. Froth (air) does not pump.

8 months ago

even with slurry pump if you are facing problem like froth is overflowing from slurry pump pit , variation in pressure at hydro-cyclone inlet .. You can try a agitator in that pit , which will break the froth and it will be easily pump to hydro-cyclone battery .

8 months ago
David 8 months ago

With regards to froth tenacity,  it always pays to observe the ability of the froth to breakdown in launders and pump hoppers. While the majority of froths break down easily, it may be necessary to modify hoppers and launders to accommodate tenacious froths and often reduce or even change frother.

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