Study on the influence of selection of vanadium-removing oil on oxygen and carbon content in titanium sponge
Vegetable oil and mineral oil,as organic compounds with good vanadium removal effect of TiCl4,are widely used in titanium dioxide and titani-um sponge industry.In this paper,through a large number of experimental studies,7#,8#,9# mineral oil and imported vegetable oil can remove VOCl3 when the addition amount is lower than 0.07％.Moreover,the vanadium removal effect of vegetable oil is faster and better.However when applied to pro-duction,because the main component of vegetable oil is unsaturated fatty acid which contains oxygen element,the oxygen content of titanium sponge pro-duced is high,but titanium dioxide industry has no requirement for oxygen,so it is concluded that the effect of using vegetable oil is better in titanium di-oxide industry,since it has no requirement for oxygen.However,in the titanium sponge industry,oxygen and carbon as impurity elements,the require-ments for vanadium removal oil are stricter.Therefore,in the vanadium removal process of crude TiCl4,7 # mineral oil has better vanadium removal effect,with no more than 0.07％vanadium removal oil,the highest carbon distribution of C30 and the flash point at about 200℃.
万方数据
维普
