'n Magnetiese skeier met hoë gradiënt (HGMS) is 'n gevorderde magnetiese skeidingstegnologie wat ontwerp is om swak magnetiese deeltjies of fyn deeltjies uit vloeistowwe te onttrek, slurries, of gasse. Dit bereik hoë selektiwiteit en doeltreffendheid deur uiters sterk magnetiese veldgradiënte op te wek (tot verskeie Tesla) met behulp van 'n matriks van ferromagnetiese materiale (bv., staalwol, uitgerekte metaal, or plates) placed in the magnetic field.

Sleutelkenmerke van HGMS:
1. High Magnetic Gradient:
- Uses a magnetized matrix (bv., stainless steel wool) to create localized high gradients, enabling the capture of fine or weakly magnetic materials (bv., iron oxides, paramagnetic minerals).

2. Strong Background Field:
- Generated by superconducting magnets (for high fields >2T) or rare-earth permanent magnets (for lower fields).

3. Aansoeke:
- Mineraalverwerking: Removal of iron impurities from kaolin, kwarts, veldspaat.
- Water behandeling: Heavy metal removal (bv., arseen, chroom).
- Herwinning: Recovery of metals from waste streams.
- Biomedical/Life Sciences: Cell sorting, protein purification.

4. Operation Modes:
- Batch Mode: Matrix is cleaned after saturation.
- Continuous Mode: Self-cleaning systems for industrial-scale use.

5. Advantages Over Conventional Magnetic Separators:
- Higher recovery of ultrafine particles (<1 µm).
- Better selectivity for low-susceptibility materials.

Beperkings:
- Hoë energieverbruik (if using superconducting magnets).
- Matrix clogging in high-solid-content feeds.

Example Manufacturers:
- Eriez Magnetics
- SLon Magnetic Separator Ltd. (China)
- Outotec ()

Would you like details on a specific application or technical parameters?