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。
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.
出处
《云南化工》
CAS
2010年第3期13-15,38,共4页
Yunnan Chemical Technology
关键词
缓释尿素
磷石膏治理
slow release urea
phosphogypsum treatment
