Abstract
Non-agglomerated ammonium dimolybdate (ADM) monocrystals with large diameter and high dispersion has been prepared through reaction-evaporation-crystallization (REC) process using ammonium tetramolybdate and ammonia solution as reactants. The as-prepared ADM monocrystals were systematically characterized by x-ray powder diffraction, transmission-reflection optical microscope, Fourier transform infrared spectroscopy and TG-DSC thermal analysis. It is shown that the as-prepared ADM samples are disperse monocrystals with well grain distribution and geometric shape, which can well meet the quality requirements for the subsequent production of molybdenum powders.
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