东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2005, Vol. 26 ›› Issue (3): 263-265.DOI: -

• 论著 • 上一篇    下一篇

脱硅渣合成钾肥的溶出特性

沈建国;郭春媛;于景坤;姜茂发   

  1. 东北大学材料与冶金学院;东北大学材料与冶金学院;东北大学材料与冶金学院;东北大学材料与冶金学院 辽宁沈阳　110004
  • 收稿日期:2013-06-24 修回日期:2013-06-24 出版日期:2005-03-15 发布日期:2013-06-24
  • 通讯作者: Yu, J.-K.
  • 作者简介:-
  • 基金资助:
    教育部科学技术研究重点资助项目(01057)·

Dissolubility of potash fertilizer synthesized with desiliconized slag

Shen, Jian-Guo (1); Guo, Chun-Yuan (1); Yu, Jing-Kun (1); Jiang, Mao-Fa (1)   

  1. (1) Sch. of Mat. and Metall., Northeastern Univ., Shenyang 110004, China
  • Received:2013-06-24 Revised:2013-06-24 Online:2005-03-15 Published:2013-06-24
  • Contact: Yu, J.-K.
  • About author:-
  • Supported by:
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摘要： 在水和柠檬酸溶液中分别测定了利用脱硅渣合成钾肥中的钾元素的溶出率,考察了多种因素对钾元素溶出率的影响·结果表明,钾元素在水中的溶出率小于其在柠檬酸溶液中的溶出率·与农用钾肥硫酸钾相比,合成钾肥的溶出率很小,具有明显的缓释性·K2O含量,保温时间以及氧化物添加种类对合成钾肥的缓释性没有明显影响,但加热温度和冷却方式具有显著作用·

关键词: 柠檬酸, 脱硅渣, 钾肥, 溶出率, 缓释性

Abstract: The dissolution rate of potassium in the potash fertilizer synthesized with desiliconized slag under different conditions was determined and discussed. The results showed that the dissolution rate of potassium in water is less than that in aqueous citric acid solution and much less than that in the widely used fertilizer of potassium sulphate. The fact shows that the potash fertilizer synthesized with desiliconized slag has an obvious property of slow release. The effects of the amount of K2O addition, holding time and oxide additives on the dissolution rate are not obvious, though the heating temperature and cooling mode affect it notably.

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