1. Magnetic separation

2. Magnetic separation Overview
Material is separated based on magnetic susceptibility
Highly magnetic material is removed using a hand magnet
Weakly magnetic materials are separated by a Frantz magnetic separator

3. Magnetic separation Hand Magnet
Spread the sample in a single layer on a piece of paper
Cover the hand magnet in weighing paper and pass over the sample
Set the magnet of a second piece of weighing paper, hold the first down and remove the magnet
Do not allow sample to contact the magnet directly as it is very difficult to remove.

4. Magnetic separation Frantz set up
The Frantz produces a strong magnetic field over a ramp that holds magnetically susceptible material, while non magnetic material falls to a second ramp
Set the angle of the ramp using the black rotating handle, typical angles are 10° - 25°
Adjust the strength of the magnetic field using the current knob *do not exceed 1.3 A*
Set the sample constrainers in place at the end of the ramps
Magnet current
Current Adjustment

5. Magnetic Separation Frantz Magnetic separator High magnetic
sample collection
Sample
Feed
Ramp angle
Adjustment
(typically 10°-25°)
Ramp
Low magnetic
sample collection
Vibration control

6. Magnetic separation Frantz sample separation
Add sample to the feed shoe.
The rate of sample introduction is controlled by the angle of the feed outlet shoot and the strength of feed vibration
The speed at which material moved down the ramp is controlled by the strength of the chute vibration
Set the vibrations such that material is able to separate on the ramp and is not introduced so fast as to cause clogs.

7. Magnetic Separation
Sample
Introduction
Ramp
Vibration

8. Magnetic separation Franz clean up
Remove separated material and blow off all surfaces with compressed air.