| 萃取法回收钛白水解废酸中的硫酸 |
| |
| 引用本文： | 李潜,朱红力.萃取法回收钛白水解废酸中的硫酸[J].化工环保,2003,23(4):225-228. |
| |
| 作者姓名： | 李潜 朱红力 |
| |
| 作者单位： | 江苏大学,生物与环境工程学院,江苏,镇江,212013 |
| |
| 摘 要： | 提出了以三异辛胺作萃取剂、H2O作反萃取剂从钛白水解废酸中萃取回收硫酸的新工艺。考察了萃取剂浓度、相调节剂浓度、相比及温度对萃取和反萃取的影响，并进行了模拟试验。在以40％三异辛胺、25％仲辛醇和35％航空煤油(均为质量分数)为萃取有机相，相比为2，以H2O为反萃剂，相比为1．5的条件下，质量浓度为146．02g/L的废酸经8级萃取和6级反萃取，硫酸回收率达到91．81％，产品酸质量浓度达119．73g/L。
|
| 关 键 词： | 钛白 萃取 硫酸 综合利用 |
| 文章编号： | 1006-1878(2003)04-0225-04 |
| 修稿时间： | 2002年6月20日 |
Recovery of Sulfuric Acid from Hydrolysis Waste Acid in Titanium Dioxide Production by Solvent Extraction |
| |
| Liqian,Zhuhongli.Recovery of Sulfuric Acid from Hydrolysis Waste Acid in Titanium Dioxide Production by Solvent Extraction[J].Environmental Protection of Chemical Industry,2003,23(4):225-228. |
| |
| Authors: | Liqian Zhuhongli |
| |
| Abstract: | A new process using tri-isoctylamine as the extractant and water as the back-extractant was developed to recover sulfuric acid from hydrolysis waste acid in titanium dioxide production.The effects of extractant concentration,phase regulators,phase ratio and temperature on extraction and back-extraction were examined and simulation tests were carried out.The extraction organic phase is composed of 40% tri-isoctylamine,25% 2-octanol and 35% aviation kerosene.The phase ratio for extraction is 2 and that for back-extraction is 1.5. The waste acid with mass concentration 146.02 mg/L was treated by 8-stage extraction and 6-stage back-extraction.The recovery of sulfuric acid is 91.8% and the mass concentration of recovered sulfuric acid is 119.73 g/L. |
| |
| Keywords: | titanium dioxide extraction sulfuric acid comprehensive utilization |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
