【摘要】 以提纯后的TiCl₄为原料,氨水作为形核剂,PEG400为分散剂,制备出高纯TiO₂粉体。采用ICP、XRD、SEM等手段对所得样品进行分析。结果表明,TiCl₄溶液经60℃水浴2h后加入含15mL PEG400的氨水溶液,在900℃下煅烧3h,可以制备出晶型为单一金红石相,平均粒度为70μm,形貌为近球形,流动性良好的高纯TiO2粉体。更多还原

【Abstract】 The high purity TiO₂ powders were prepared using purified TiCl₄ as raw materials,PEG400 as dispersant and ammonia as nucleation agent.The obtained samples were analyzed by ICP,XRD and SEM.The results indicated that after 60℃ water bath 2 h,the ammonia solution containing 15 mL PEG400 was joined into TiCl₄ solution,and then,calcined under 900 ℃,the high purity TiO₂ powders with rutile crystalline phase were obtained.The average particle size of the powders was 70μm,the morphology was nearly spherical,and the liquidity was good.更多还原