钼粉还原过程中的遗传特性研究

INVESTIGATION ON THE HERETIDY OF MOLYBDENUM POWDER REDUCTION PROCESSING

利生物学中遗传的概念,针对以钼酸铵为原料经2段还原生产制备钼粉的工艺过程为研究对象,详细分析了还原过程中钼酸铵、二氧化钼、钼粉颗粒形貌、费氏粒度以及杂质元素含量等关键特点的演变过程和遗传特性。研究结果表明,颗粒团聚体的形貌演变具有明显的遗传现象,并伴有一定程度的变异;对于单颗粒形貌,每一代均具有自己本征特点,变异占主导地位,基本不存在遗传现象;费氏粒度的遗传特点是原料钼酸铵颗粒较粗对应产物颗粒较粗,原料颗粒较细对应产物颗粒也较细。杂质元素的遗传也具有明显的特点,易挥发元素、易受污染元素在还原过程中以变异为主;而其他不易挥发、不存在污染的杂质元素以遗传为主。

According to the concept of genetic biology,studying on two-stage reduction process for molybdenum powder preparation with AQM as raw material,the evolution process and genetic characteristics of key features which are morphology,FSSS,impurities of AQM,MoO2 and Mo in reduction process were analyzed in detail.The results show that the morphology of the aggregate particles exist genetic phenomenon obviously and accompanied by variation in some extent.For single particle,each generation has its own intrinsic characteristics.So variation is dominant with least genetic phenomenon.The genetic characteristic of FSSS is coarser raw material AQM particles corresponding coarser products particles,and vice versa.Impurities also have significant genetic characteristics.Volatile elements and vulnerable to pollution elements are variation mainly in the reduction process,while other less volatile and polluted elements are prefer to genetic.