Rare earth ion migration simulation method based on nuclear magnetic resonance imaging

The invention relates to the technical field of rare earth ion migration, and provides a rare earth ion migration simulation method based on nuclear magnetic resonance imaging, which comprises the following steps: step 1, obtaining an ionic rare earth ore body sample; 2, acquiring a pore structure image of the ionic rare earth ore body sample based on a nuclear magnetic resonance imaging technology; 3, preprocessing the pore structure image and generating a two-dimensional geometric model; and 4, simulating the rare earth ion migration process by utilizing multi-physics field coupling software, importing the two-dimensional geometric model into COMSOL Multiphysics multi-physics field coupling software, and simulating the rare earth ion migration process by adopting a seepage control equation, an ion exchange reaction control equation and a solute migration control equation. According to the method, the ionic rare earth digital model with real size, shape, seepage channel and pore proportion ...