| 水热条件下磷矿粉活化条件的筛选 |
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| 作者姓名： | 何海勇 齐鑫 石元亮 |
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| 作者单位： | 1. 中国科学院沈阳应用生态研究所, 沈阳 110016;
2. 中国科学院大学, 北京 100049 |
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| 基金项目： | 国家科技支撑计划项目(2011BAD11B04)资助 |
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| 摘 要： | 在水热反应釜中利用硫酸铵作为活化剂对磷矿粉进行活化处理,研究其水热活化工艺条件.结果表明,在水固比为1:1、硫酸铵与磷矿粉的质量比为3:7、水热时间12 h、水热温度为220℃时有较好的活化效果,活化后的磷矿粉的有效磷含量提高78.2%.采用X-射线衍射技术对活化产物物相变化进行分析,其物相经水热活化后发生改变.
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| 关 键 词： | 磷矿粉 硫酸铵 水热活化 有效磷 |
| 收稿时间： | 2013-02-05 |
| 修稿时间： | 2013-04-23 |
Phosphate rock activation condition screening under treatment of hydrothermal condition |
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| Authors: | HE Hai-Yong QI Xin SHI Yuan-Liang |
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| Institution: | 1. Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China;
2. University of Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | The phosphate rock was activated in a hydrothermal reaction kettle by using ammonium sulphate as activator, and the hydrothermal technological conditions were studied. The results showed that the effect of activation was strong when the water-solid ratio was 1:1; ammonium sulphate-phosphate rock ratio was 3:7; hydrothermal time was 12 h; and hydrothermal temperature was 220℃. The available P content in activated phosphate rock increased by 78.2%. The phase change of activation products was studied by X-Ray diffraction, and the phase was changed under the treatment of hydrothermal activation. |
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| Keywords: | phosphate rock ammonium sulphate hydrothermal activation available P |
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