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| 钛白废酸低温除杂浓缩的研究 | |
| 引用本文： | 王隽,郭勇,王强,周在德,肖丹.钛白废酸低温除杂浓缩的研究[J].化学研究与应用,2009,21(12). |
| 作者姓名： | 王隽 郭勇 王强 周在德 肖丹 |
| 作者单位： | 1. 四川大学化学工程学院,四川,成都,610065 2. 四川大学化学学院,四川,成都,610064 3. 攀化科技有限公司,四川,攀枝花,617000 |
| 摘 要： | 钛白粉是一种白色颜料,其主要成分为二氧化钛(TiO_2),是一种重要的无机化工产品.其生产工艺有硫酸盐工艺和氯化物工艺两种,硫酸盐法的技术比氯化物法简单,可以用于品位低和比较便宜的矿物~(1]). |
| 关 键 词： | 钛白废酸 浓缩 冷却 结晶 硫酸亚铁 |
Low-temperature purification and concentration of waste acid in titanium dioxide industry |
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| WANG Jun,GUO Yong,WANG Qiang,ZHOU Zai-de,XIAO Dan.Low-temperature purification and concentration of waste acid in titanium dioxide industry[J].Chemical Research and Application,2009,21(12). | |
| Authors: | WANG Jun GUO Yong WANG Qiang ZHOU Zai-de XIAO Dan |
| Abstract: | We reported a low temperature method of dealing with waste sulfuric acid in titanium dioxide industry. By studying the four impact factors: pre-cooling, temperature, time and centrifugal, we optimized the experimental conditions: pre-cooling at 2℃ in 3h,freeze crystallization at -35℃～-20℃ in 18h, and separation of ferrous sulfate and ice from acid at 3000～4000rpm. The concentration of sulfuric acid achieved 27%～30%, while that of ferrous sulfate decrease to 0.5%. |
| Keywords: | waste acid in titanium dioxide industry concentration freeze crystallization ferrous sulfate |
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