| 脲硫酸分解磷矿宏观动力学研究 |
| |
| 引用本文： | 侯翠红,王光龙,张宝林,王民生.脲硫酸分解磷矿宏观动力学研究[J].化学工程,2007,35(1):28-31. |
| |
| 作者姓名： | 侯翠红 王光龙 张宝林 王民生 |
| |
| 作者单位： | 郑州大学,化工学院,河南,郑州,450002;河南黄河物资公司,河南,郑州,450052 |
| |
| 基金项目： | 河南省科技厅科技攻关项目 |
| |
| 摘 要： | 以保康矿为基础,对脲硫酸分解磷矿的宏观反应动力学进行了研究,该反应过程中阻化作用对反应速率影响很大,阻化系数β随反应温度升高、矿粉粒度减小而增大,随酸解剂摩尔比而变化。在磷矿粒度为0.110—0.174mm,反应温度为339—359 K和酸解剂摩尔比为n(尿素)∶n(硫酸)=2.0—3.6∶1的条件下,实验得到包含阻化系数的脲硫酸分解磷矿过程的宏观动力学方程,方差分析表明模型可靠,为工艺条件的优化和反应器的设计提供了理论依据。
|
| 关 键 词： | 尿素 硫酸 磷矿 反应动力学 |
| 文章编号： | 1005-9954（2007）01-0028-04 |
Study on reaction kinetics of urea sulfuric acid decomposing phosphate rock |
| |
| HOU Cui-hong,WANG Guang-long,ZHANG Bao-lin,WANG Min-sheng.Study on reaction kinetics of urea sulfuric acid decomposing phosphate rock[J].Chemical Engineering,2007,35(1):28-31. |
| |
| Authors: | HOU Cui-hong WANG Guang-long ZHANG Bao-lin WANG Min-sheng |
| |
| Affiliation: | 1. College of Chemical Engineering, Zhengzhou University, Zhengzhou 450002, Henan Province, China; 2. Henan Huanghe Material Co. , Zhengzhou 450052, Henan Province, China |
| |
| Abstract: | Based on Baokang phosphate rock(PR),reaction kinetics of urea sulfuric acid decomposing phosphate rock was studied,in which,retardation played an important role on reaction rate.Retardation coefficient β was(increased) with the rise of reaction temperature,reduction of PR powder size and changed with the acidulation ratio.Through the experiments with reaction temperature from 339 K to 359 K,PR size from 0.110 mm to 0.174 mm,mole ratio of urea to sulfuric acid from 2.0 ∶1 to 3.6 ∶1,a macro kinetics equation of decomposing PR with urea-sulfuric acid containing β was established.Varian analysis indicated a good reliability of the model.The study(provided) theoretical basis for the design of reactor and the optimization of process operation. |
| |
| Keywords: | urea sulfuric acid phosphate rock reaction kinetics |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
