Magnetic separation is a laboratory procedure in which dry granular material are being separated based on magnetic susceptibility of minerals. This is a valuable method to quantify the mineral species in a sample.
Available Instrument: Frantz L-1 Laboratory Isodynamic
Key Features
- Material is deflected by opposed magnetic and non-magnetic (gravitational)forces, controlled by the current and side slope respectively.
- Employs a powerful electromagnet to generate a magnetic field of variable intensity and
gradient.
- Current can be adjusted from zero to over 2 Amperes at start-up.
- The power supply will maintain 1.8 Amperes indefinitely at ambient temperatures up to
approximately 32°C (90°F).
- Features a sample feed system for controlled introduction of mineral samples.
- Offers precise control over the magnetic field strength and gradient for optimal separation
Sample Acceptance and Analysis
- About 20mg of 100% dry, granular material is required
- Required particle sizes – 250µm (preferred), 125µm
- Testing time: varies depending on size of the sample, amount of magnetic and
- non-magnetic minerals in the sample etc. (usually between 1-2 hrs. for a 20g sample)
