| 磷矿粉的超微细活化及磷释放动态研究 |
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| 引用本文： | 赵夫涛,盖国胜,井大炜,杨玉芬,董元杰,刘春生.磷矿粉的超微细活化及磷释放动态研究[J].植物营养与肥料学报,2009,15(2):474-477. |
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| 作者姓名： | 赵夫涛 盖国胜 井大炜 杨玉芬 董元杰 刘春生 |
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| 作者单位： | 1.山东农业大学资源与环境学院,山东泰安 271018; |
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| 基金项目： | 国家自然科学基金,国家科技支撑计划 |
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| 摘 要： | 以无机、有机材料为活化剂,用振动磨湿法研磨和连续提取的方法,研究了不同活化剂对磷矿粉的超微细活化作用及磷素动态释放特性。结果表明,添加活化剂能够显著提高磷矿粉的粉碎效率,缩短研磨时间。对磷矿粉进行超微细活化处理能显著提高磷矿粉有效磷的含量,胶磷矿加入无机,有机活化剂和无机、有机活化剂并用的处理2h样品的有效磷含量是粗胶磷矿的1.82、1.86、1.83倍。 2%柠檬酸连续浸提试验表明,各微细处理的胶磷矿6次累积磷总量分别是粗胶磷矿粉的1.90、1.86、1.64、1.69倍。
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| 关 键 词： | 磷矿粉 超微细 活化 有效磷含量 磷释放动态 |
| 收稿时间： | 2008-2-25 |
Ultrafine grinding activations of phosphate rock and their dynamic phosphorus releases |
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| ZHAO Fu-tao,GAI Guo-sheng,JING Da-wei,YANG Yu-fen,DONG Yuan-jie,LIU Chun-sheng.Ultrafine grinding activations of phosphate rock and their dynamic phosphorus releases[J].Plant Nutrition and Fertilizer Science,2009,15(2):474-477. |
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| Authors: | ZHAO Fu-tao GAI Guo-sheng JING Da-wei YANG Yu-fen DONG Yuan-jie LIU Chun-sheng |
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| Institution: | 1.Resources and Environment College,Shandong Agricultural University,Taian 271018,China;
2 Key Laboratory of Advanced Materials sponsored by the Education Ministry of China,Department of Materials Science and Engineering,Tsinghua University,Beijing 10084,China; |
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| Abstract: | Ultrafine grinding activations of phosphate rock and their dynamic phosphorus releasing rates were investigated by using the vibration mill wet grinding processing method in which the inorganic activator and organic activator were added. The results show that the milling efficiencies are significantly improved, and the milling periods are shortened by adding the activators in the processing. The available phosphorus contents of the phosphate rock are increased by using the ultrafine grinding activations. By adding the activators to superfine chollophanite powder and 2h superfine processing, the available phosphorus contents of the powders which are mixed with the inorganic activator, the organic activator, and the inorganic--organic activator combination are 1.82, 1.86 and 1.83 times higher than that of the chollophanite without any additions, respectively. The results of the continuous 2% citric acid extraction experiment indicate that the cumulative release amounts from chollophanite by the check (only milling) the three additions are 1.90, 1.86, 1.64 and 1.69 times higher than that from the raw chollophanite |
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| Keywords: | phosphate rock superfine activation available phosphorus content dynamic phosphorus releasing rate |
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