Preparation of titanium dioxide powder by phase transfer method

Titanium dioxide powder was preparated by phase transfer method respectively using three different inorganic phase of saturated solution of ammonium oxalate,one added ammonium hydroxide and ammonium carbonate and the organic phase of 1-octanol solution of four titanium chloride.The process conditions and properties of powder were studied by thermal analysis,XRD phase analysis and composition analysis.The results show that the organic phase effectively inhibited nucleation rate and crystal nucleus growth rate of hydrolysis product of four titanium chloride in aqueous solution.Saturated solution of ammonium oxalate and one added ammonium hydroxide promote the nucleation rate,inhibition of growth rate,product to be difficult to filtering,washing and ensuring the purity.Saturated solution of ammonium carbonate promotes nucleation growth rate significantly,product easy filtering and washing.The content of TiO2 in the powder preparated by this experiment is 99.9647%.It proved that this experiment was one of potential pathways for the preparation of rutile single crystal material powder.