钛精矿生产钛白粉废酸的回收技术研究  

Research on the recovery technology of titanium pigment waste acid produced by ilmenite

作　　者：王伟[1] 唐明林[1] 桑世华[1] 

机构地区：[1]成都理工大学材料与化学化工学院,四川成都610059

出　　处：《现代盐化工》2017年第5期50-51,共2页Modern Salt and Chemical Industry

摘　　要：文章探索了钛白废酸浓缩的两种方法:太阳能蒸发、低温冷冻结晶。两种方法得到的硫酸质量分数不同。研究表明:先采用太阳蒸发到一定程度再采用低温冷冻结晶方法可以得到质量分数为87.9%的浓硫酸,该方法可以规模化回收硫酸,经济环保、成本低、操作简单。This article explores two methods for concentrating titanium dioxide waste acid： solar evaporation, freezing and crystallization at lowe temperature. The sulfuric acid fractions obtained by the two methods are different. The study shows that frst using the solar to evaporate to a certain extent then using freezing crystallization method can get the mass fraction of 87.9% concentrated sulfuric acid, the method can recovery of sulfuric acid on a large scale, and has the advantages of economy, environmental protection, low cost and simple operation.

关 键 词：钛白废酸 浓缩 蒸发 环保 

分 类 号：X788[环境科学与工程—环境工程]