| 脱硅渣合成钾肥的溶出特性 |
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| 引用本文： | 沈建国,郭春媛,于景坤,姜茂发.脱硅渣合成钾肥的溶出特性[J].东北大学学报(自然科学版),2005,26(3):263-265. |
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| 作者姓名： | 沈建国 郭春媛 于景坤 姜茂发 |
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| 作者单位： | 东北大学,材料与冶金学院,辽宁,沈阳,110004;东北大学,材料与冶金学院,辽宁,沈阳,110004;东北大学,材料与冶金学院,辽宁,沈阳,110004;东北大学,材料与冶金学院,辽宁,沈阳,110004 |
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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·
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| 关 键 词： | 柠檬酸 脱硅渣 钾肥 溶出率 缓释性 |
| 文章编号： | 1005-3026(2005)03-0263-04 |
| 修稿时间： | 2004年4月20日 |
Dissolubility of Potash Fertilizer Synthesized with Desiliconized Slag |
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| SHEN Jian-guo,GUO Chun-yuan,YU Jing-kun,JIANG Mao-fa.Dissolubility of Potash Fertilizer Synthesized with Desiliconized Slag[J].Journal of Northeastern University(Natural Science),2005,26(3):263-265. |
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| Authors: | SHEN Jian-guo GUO Chun-yuan YU Jing-kun JIANG Mao-fa |
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| Institution: | (1) Sch. of Mat. and Metall., Northeastern Univ., Shenyang 110004, China |
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| 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 K_2O 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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| Keywords: | citric acid desiliconized slag potash fertilizer dissolution rate slow relea |
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