武汉工程大学学报2011，Vol.33Issue(11)：38-42,5.DOI:10.3969/j.issn.1674-2869.2011.11.010
硫铁矿烧渣制备高铁酸钾及高铁酸钾溶液稳定性
Preparation of potassium ferrate with pyrite cinders and potassium ferrate solutions stability
高荣 1金士威 1张旭 1刚典臣2
作者信息
- 1. 武汉工程大学化工与制药学院,绿色化工过程教育部重点实验室,湖北 武汉 430074
- 2. 美国路易斯安那大学拉法叶分校工程学院,路易斯安那州 拉斐特 70504
- 折叠
摘要
Abstract
Ferric sulfate was prepared using pyrite cinders as raw material by acid splitting-water extraction method. Then potassium ferrate was produced with ferric sulfate by sodium hypochlorite oxidation method. The results of the preparation of ferric sulfate solution from pyrite cinders showed that the best operation conditions as follows:Under the condition of the weight ratio of water and pyrite cinder was 0. 65 and 98% sulfuric acid for acid splitting, the recovery rate of ferrum was 78. 6% after reacting 1 hour at 280 ℃. Moreover, the best operation conditions of producing potassium ferrate demonstrated as follows: with 20% of the sodium hypochlorite and 0. 65 of the mass ratio between ferric sulfate and sodium hydroxide by weight,the yield of potassium ferrate can reach 73. 4% by reacting 1. 5 hours at 25 ℃. The best storage way was that avoided light and mixed with 0. 10% of NaIO4 as stabilizer in polyethylene plastic bottles.关键词
硫铁矿烧渣/高铁酸钾/次氯酸钠氧化法/稳定剂Key words
pyrite cinders/potassium ferrate/sodium hypochlorite oxidation/stabilizer分类
化学化工引用本文复制引用
高荣,金士威,张旭,刚典臣..硫铁矿烧渣制备高铁酸钾及高铁酸钾溶液稳定性[J].武汉工程大学学报,2011,33(11):38-42,5.
