Premium
Purification of titanium tetrachloride from titania slag chlorination
Author(s) -
Hung Ly Cam,
Hai Tran Duy,
Khoa Tran Anh,
Vien Le Minh,
Tuan Phan Dinh
Publication year - 2019
Publication title -
vietnam journal of chemistry
Language(s) - English
Resource type - Journals
eISSN - 2572-8288
pISSN - 0866-7144
DOI - 10.1002/vjch.201900105
Subject(s) - acetylacetone , distillation , titanium tetrachloride , titanium , impurity , vacuum distillation , chemistry , copper , extraction (chemistry) , metal , inorganic chemistry , nuclear chemistry , materials science , chromatography , organic chemistry
Purification of titanium tetrachloride (TiCl 4 ) is an important step in the titanium process. After chlorination, impurities in the gained crude TiCl 4 such as V, Al, Fe, Si, etc. were removed by distillation technique following the chemical pre‐treatment method. Simple distillation, distillation with bubbled N 2 and distillation in presence of copper metal were tested. Effect of copper metal, diethyl malonate and acetylacetone on the impurities removal was evaluated. Obtained results showed that the chemical pre‐treatment method exhibited a higher efficiency for TiCl 4 purification than the distillation method. Acetylacetone was shown to be a suitable agent for impurities removal, resulting low content of V, Zr, Al, Fe and Si in the final purified TiCl 4 product. Crude TiCl 4 purification in distillation tower of a pilot scale was successfully operated.