TL;DR: Magnetic/Electrostatic Beneficiation is a main entry in the 外星矿物知识引擎 database.
Pre-processing step using magnetic fields and/or triboelectric charging to concentrate target minerals before extraction
Method Type
Physical Separation
Input Material
Raw lunar regolith
Output
Concentrated mineral fractions (ilmenite, anorthite, etc.)
Efficiency
5-10x concentration achievable; low energy input
Space Viability
Excellent - no reagents needed; works in vacuum; demonstrated with simulants