四氯化钛精制车间氯化物泥浆提钒新工艺

A New Technology of Vanadium Extraction from Chloride Mud in the TiCl_4 Refining Workshop

氯化物泥浆是海绵钛生产的副产品,含有钒、钛等有价元素。该氯化物泥浆成分复杂,很难回收利用,长期堆放很容易与空气中的水分发生水解反应,生成刺激性气体,严重危害环境。为了回收其中的有价元素钒并减少环境危害,开发了处理含钒氯化物泥浆的新工艺。通过熟石灰处理、水洗、氧化焙烧等工艺,使钒能够顺利通过湿法冶金的方法进行提取,钒的有效回收率达到90%。对于年产15 kt的海绵钛厂,通过该工艺回收废渣中的钒,每年可增加利润约364.5万元。

The chloride mud is a by-product of titanium sponge production, which contains vanadium, titanium and other valence elements. But the composition of the chloride mud is so complicated that it is diffieuh to recycle, and the mud is easy to hydrolysis with moisture in the air and generates irritant gas, which will pollute the environment, in order to reclaim the valence element of vanadium and reduce environmental damage, a new technology of processing the chloride mud containing vanadium was developed. By slaked lime processing, water washing, oxidation roasting and other processes, the vanadium could be extracted successfully by the method of hydrometallurgy, which made the effective recovery rate of vanadium up to 90%. To a titanium sponge factory with the annual production of 15 kt, the profit of the factory could increase 3. 645 million by the usage of the new technology.