Preparation of High Purity Metal Titanium by Iodization

In this paper,the influences of raw material temperature and K value on the average deposition rate for iodization reaction were studied using industrial sponge titanium as raw material.The results show that the deposition rate increases with raw material temperature rising at a fixed K value,while the deposition rate increases at an obviously slow trend with raw material temperature over 600 ℃.Furthermore,the deposition rate increases with increase of K value at a certain raw material temperature.At a raw material temperature of 600 ℃ and K value of 80,multi-batch trial production results show that the diameter of the obtained crystal rods is about 23～26 mm with a total yield rate of about 98% and a deposition rate of 30 g/（h·m）.Meanwhile,the prepared forgeable high-purity metallic titanium owns a thick grain size,shining surface and a purity higher than 99.99%,showing an excellent purification effect.