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中国科学院大学学报 ›› 2013, Vol. 30 ›› Issue (6): 845-850.DOI: 10.7523/j.issn.2095-6134.2013.06.020

• 简报 • 上一篇    

水热条件下磷矿粉活化条件的筛选

何海勇1,2, 齐鑫1, 石元亮1   

  1. 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
  • 收稿日期:2013-02-05 修回日期:2013-04-23 发布日期:2013-11-15
  • 通讯作者: 石元亮
  • 基金资助:

    国家科技支撑计划项目(2011BAD11B04)资助

Phosphate rock activation condition screening under treatment of hydrothermal condition

HE Hai-Yong1,2, QI Xin1, SHI Yuan-Liang1   

  1. 1. Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China;
    2. University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2013-02-05 Revised:2013-04-23 Published:2013-11-15

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.

关键词: 磷矿粉, 硫酸铵, 水热活化, 有效磷

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.

Key words: phosphate rock, ammonium sulphate, hydrothermal activation, available P

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