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Follow on Google News | Preparation of metal molybdenum powderThe raw material is generally ammonium paramolybdate 3(NH4)O·7MoO3· The factors that affect the quality of molybdenum powder are mainly the quality of raw materials, loading of the boat, reduction temperature, hydrogen flow and humidity, and the residence time of the material in the furnace. The purity of the raw material molybdenum dioxide determines the purity of the product molybdenum powder. The amount of material in the reduction boat, the thickness of the material layer, and the tightness of the material will affect the penetration of hydrogen and the elimination of reducing water and gas, and therefore the quality of the molybdenum powder. The reduction temperature is low, the reduction reaction is incomplete, and the reaction speed is slow. The obtained molybdenum powder has high oxygen content and fine particle size; the high reduction temperature is the opposite. Molybdenum powder has a high humidity, and the molybdenum powder has an increased oxygen content and a coarse particle size; a large hydrogen flow rate increases the reduction reaction speed, and the molybdenum powder has a reduced oxygen content, but the material and heat loss taken away increase. The material stays in the furnace for a long time, the oxygen content of the product molybdenum powder decreases and the particle size becomes coarse. In the reduction process, trying to avoid the introduction of other impurities and prevent the molybdenum powder from oxidizing during cooling can also improve the quality of the product molybdenum powder. molybdenum powder (https://www.edge- molybdenum (https://www.edgetechmat.com/ End
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