Separation

Question 1

depends on mineral properties, production requirements

Answer 1

na

Question 2

hydrocyclones

Answer 2

• cone shape
• small size, easily transportable
• lacks sharpness of separation

Question 3

spiral concentrator

Answer 3

• device for gravity concentrating particles based upon particle density, shape and size
• slurry flows down the spiral, light density particle travels outward to the outer periphery of the spiral

Question 4

shaking table

Answer 4

• riffles run perpendicular to feed

- particles behing riffles, heavier particles at bottom

Question 5

coal jigs

Answer 5

• separation by density
• air pulsed to remove ash and sulphur from coal
• gravity dense media separation
• cyclone configuration at finer sizes

Question 6

Froth/ flotation background

Answer 6

• gas bubbles act as balloon and provide the necessary buoyancy to carry selected minerals to the surface

Question 7

hydrometallurgy

Answer 7

heap leaching

-ore heaped on top of impermeable liner

Question 8

TSF (tailings storage facility)

Answer 8

input > separation > waste