| 从硫铁矿矿渣中制备聚合硫酸铁 |
| |
| 引用本文： | 周明.从硫铁矿矿渣中制备聚合硫酸铁[J].化学世界,2003,44(2):72-74,77. |
| |
| 作者姓名： | 周明 |
| |
| 作者单位： | 西南石油学院研究生院,四川,成都,610500 |
| |
| 摘 要： | 以硫铁矿矿渣为原料 ,按反浮选和选择性浸出原理除去杂质 ,在 1 0 0°C用硫酸浸得硫酸铁和硫酸亚铁混合液 ,并测定了 Fe2 + 和 Fe3 + 含量。同时对废铁屑经硫酸洗涤和纯碱洗涤后 ,把过量的废铁屑加入该混合液中 ,使整个溶液还原成硫酸亚铁溶液。采用氯酸钠氧化法 ,在 65°C经氧化、水解、聚合得聚合硫酸铁溶液 ,讨论了影响聚合反应的主要因素。对炼油厂废水进行处理 ,合成的聚合硫酸铁的处理效果明显优于市售三氯化铝
|
| 关 键 词： | 硫铁矿矿渣 反浮选 氯酸钠氧化法 聚合硫酸铁 废水处理 |
| 文章编号： | 0367-6358(2003)02-0072-04 |
Preparation of Polymeric Ferric Sulphate from Sulfurous Iron Cinder |
| |
| ZHOU Ming.Preparation of Polymeric Ferric Sulphate from Sulfurous Iron Cinder[J].Chemical World,2003,44(2):72-74,77. |
| |
| Authors: | ZHOU Ming |
| |
| Abstract: | A solution of ferric and ferrous sulphate was obtained from sulfurous iron cinder by backfloatation selective leaching to remove pernicious impurities and adding H 2SO 4 in 100 °C . The concentration of Fe 2+ and Fe 3+ was determined. Then, Fe 3+ in solution was reducted to Fe 2+ by adding excessive scrap iron which was cleaned with H 2SO 4 and Na 2CO 3. A solution of polymeric ferric sulphate was obtained by oxidation, hydrolysis and polymerization in 65 °C using NaClO 3 as oxidant. The effect of various factors on the oxidation reaction was discussed. The product is more effective than commercial AlCl 3 on wastewater disposal of refinery. |
| |
| Keywords: | backfloatation NaClO 3 oxidation method polymeric ferric sulphate wastewater disposal |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
