A New Process of Preparing High-purity Molybdenum Trioxide by Microwave Hybrid Heating

A new process of preparing high-purity molybdenum trioxide by means of microwave calcining ammonium molybdate was studied in this paper. Influence of the heating time,microwave power and material weight on the decomposing ratio of ammonium molybdate was investigated.The characteristics of MoO_3 powders was measured by XRD and SEM.Experimental results indicated that microwave may rapidly calcine ammonium molybdate to gain high-purity molybdenum trioxide,the decomposition rate of ammonium molybdate was 99.72%.The powders possess single phase,uniformity and excellent dispersivity.