| 表面吸附层对磷矿石磷素释放的影响 |
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| 引用本文： | 王光火. 表面吸附层对磷矿石磷素释放的影响[J]. 土壤学报, 1998, 35(1): 65-69 |
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| 作者姓名： | 王光火 |
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| 作者单位： | 浙江农业大学 |
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| 摘 要： | 次生磷矿石表面的Ｃａ－Ｐ吸附层对磷矿石磷的释放有重要影响，以ＮａＣｌ，ＫＣｌ或ＮＨ４Ｃｌ浸提除去磷矿石表面的吸附态Ｃａ，导致了随后的水提取磷的大量增加。认为磷矿石表面的吸附层给磷灰石的加速溶解提供了Ｃａ的接收率。
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| 关 键 词： | 磷矿石 表面络合物 溶解 |
| 收稿时间： | 1995-11-30 |
| 修稿时间： | 1997-04-23 |
INFLUENCE OF SURFACE Ca-P-ADSORBING LAYER ON THE RELEASE OF PHOSPHORUS FROM PHOSPHATE ROCK |
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| Wang Guang-huo. INFLUENCE OF SURFACE Ca-P-ADSORBING LAYER ON THE RELEASE OF PHOSPHORUS FROM PHOSPHATE ROCK[J]. Acta Pedologica Sinica, 1998, 35(1): 65-69 |
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| Authors: | Wang Guang-huo |
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| Affiliation: | Zhejiang Agricultural University, Hangzhou 310029 |
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| Abstract: | The release of phosphorus from secondary phosphate rock is influenced by the Ca-P-adsorbing layer on surface of the rock. Washing with NaCl, KCl or NH4Cl to remove adsorbed Ca on the surface of phosphate rock resulted in a large increase in P extracted subsequently with water. It was suggested that the removal of adsorbed Ca could accelerate the dissolution of apatite by creating a sink for Ca at the solid surface. |
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| Keywords: | Phosphate rock Surface complex Dissolution |
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