超声波对蒸发结晶法制备仲钨酸铵过程的影响  

Effect of Ultrasonic on Preparing Process of Ammonium Paratungstate by Evaporation Crystal Technology

作　　者：谭艳芝[1] 陈启元[2] 尹周澜[2] 

机构地区：[1]广东药学院药科学院,广东广州510006 [2]中南大学化学化工学院,湖南长沙410083

出　　处：《中国钨业》2008年第6期19-21,共3页China Tungsten Industry

基　　金：国家自然科学基金重点资助项目(59934080)

摘　　要：研究了超声波对制备仲钨酸铵晶体的影响,探讨了超声波对仲钨酸铵的结晶时间、晶体粒度和晶型的影响。试验表明:超声波缩短了仲钨酸铵结晶的时间;超声波作用下制备的仲钨酸铵晶体粒度更小,分布更均匀;超声波并没有改变仲钨酸铵晶体的晶型,但所得到的晶体的d值与文献d值吻合更好,表明超声波有利于仲钨酸铵晶体的制备。The effect of ultrasonic on the crystals of ammonium paratungstate （APT） was investigated. Crystalline growth rate, crystalline particle and the crystalline style were discussed respectively.The results show that the effect of ultrasonic on ammonium tungstate was evident.Ultrasonic shortened the induction period of crystal nucleus. Distributing of crystalline granularity with ultrasonic became narrower and the crystal was more homogeneous. Ultrasonic had no effects on the crystalline styles of APT. The d value with ultrasonic is more tallied with that in the past studies. It proves that ultrasonic is beneficial to preparing APT crystals.

关 键 词：超声波 仲钨酸铵晶体 蒸发结晶法 

分 类 号：TF841.1[冶金工程—有色金属冶金]