粗TiCl4铜丝塔除钒废水的净化新工艺
来源期刊：中国有色金属学报2008年第6期
论文作者：张力萍 王学文 袁继维 龚仕成
文章页码：1159 - 1159
关键词：TiCl4；铜丝；废水净化；综合回收;
Key words：TiCl4; copper wire; wastewater purification; comprehensive recovery
摘 要：
Abstract: A coprecipitation process was used to purify the washing water and recover copper and vanadium. The factors affecting the purification were investigated. The results show that when the washing water is treated by adding sodium hydroxide to precondition the pH value to 3.0-4.0 under stirring, vanadium is oxidized from V4+ to V5+ with H2O2. The molar ratio of Cu to V is increased to 7.5-8.5 by adding Cu2+. The solution is neutralized to pH value of 7.5-8.5 with NaOH, then the solution is filtered after agitating for 20 min at room temperature. The filtrate is very clear with concentrations of V and Cu less than 2.0 mg/L, which meet with the National Standards of Integrated Discharged Wastewater. The contents of copper and vanadium in the filter residues are 45%~60% Cu and 11%~15% V, which is a good crude material for recovery of vanadium and copper.
基金信息：国家高新技术研究发展计划资助项目
湖南省杰出青年科学基金资助项目
