| 磷石膏包裹制备缓释尿素的工艺研究 |
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| 引用本文： | 董芸,张正清.磷石膏包裹制备缓释尿素的工艺研究[J].云南化工,2010,37(3):13-15,38. |
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| 作者姓名： | 董芸 张正清 |
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| 作者单位： | 1. 云南省化工研究院,云南,昆明,650228
2. 云天化集团,云南,昆明,650228 |
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| 摘 要： | 磷肥生产每年产生大量磷石膏,目前采用的露天堆存磷石膏方式存在着很大的环境安全隐患,磷石膏的治理是个世界难题。研究利用磷石膏包裹制备缓释尿素,在有效提高尿素N利用率的同时,既可为植物提供硫元素,又可消耗利用部分磷石膏。
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| 关 键 词： | 缓释尿素 磷石膏治理 |
Preparation Research of Slow Release Urea Wrapped with Phosphogypsum |
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| DONG Yun,ZHANG Zheng-qing.Preparation Research of Slow Release Urea Wrapped with Phosphogypsum[J].Yunnan Chemical Technology,2010,37(3):13-15,38. |
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| Authors: | DONG Yun ZHANG Zheng-qing |
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| Affiliation: | 1.Yunnan Research Institute of Chemical Industry,Kunming 650228,China;2.Yun Tianhua Group,Kunming 650228,China) |
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| Abstract: | Vast phosphogypsum has been brought with the preparation of phosphate.Stack of phosphogypsum in the open air is a huge potential safety hazard.And recovery of phosphogypsum is a universal problem.Phosphogypsum has been used in preparation of slow release urea in this research.With increasing of the utilization ratio of urea nitrogen,sulfur also has been provided for plant,and a lot of phosphogypsum has been consumed. |
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| Keywords: | slow release urea phosphogypsum treatment |
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