无机盐工业
主管:中海油天津化工研究设计院有限公司
主办:中海油天津化工研究设计院有限公司
   中海油炼油化工科学研究院(北京)有限公司
   中国化工学会无机酸碱盐专业委员会
ISSN 1006-4990 CN 12-1069/TQ

无机盐工业 ›› 2022, Vol. 54 ›› Issue (12): 79-86.doi: 10.19964/j.issn.1006-4990.2022-0593

• 环境·健康·安全 • 上一篇    下一篇

利用黄磷渣改性制备云贵川地区水稻专用肥

王杰1(),谷守玉1,侯翠红1(),侯黎爽1,刘玉琼1,王孟来2,杜雄雁2,姜威2,刘祖锋3   

  1. 1.郑州大学化工学院, 河南 郑州 450001
    2.国家磷资源开发利用工程技术研究中心
    3.湖北宜施壮农业科技有限公司
  • 收稿日期:2022-10-08 出版日期:2022-12-10 发布日期:2022-12-19
  • 通讯作者: 侯翠红
  • 作者简介:王杰(1996─ ),男,硕士在读,从事中低品位磷矿研究;E-mail:15238301510@163.com
  • 基金资助:
    “十三五”国家重点研发计划(2018YFC1900204-04);国家磷资源开发利用工程技术研究中心开放基金(NECP2022-02)

Preparation of rice special fertilizer in Yunnan,Guizhou,Sichuan area by modification of yellow phosphorus residue

WANG Jie1(),GU Shouyu1,HOU Cuihong1(),HOU Lishuang1,LIU Yuqiong1,WANG Menglai2,DU Xiongyan2,JIANG Wei2,LIU Zufeng3   

  1. 1. School of Chemical Engineering,Zhengzhou University,Zhengzhou 450001,China
    2. National Engineering and Technology Research Center for Development & Utilization of Phosphate Resources
    3. Hubei Yishizhuang Agricultural Technology Company
  • Received:2022-10-08 Online:2022-12-10 Published:2022-12-19
  • Contact: HOU Cuihong

摘要:

黄磷渣是电炉法生产黄磷产生的副产物,年排放量达到数百万吨,主要成分为氧化钙和二氧化硅。针对黄磷渣堆存量大、利用价值低等问题,通过在源头添加作物所需的营养元素助剂,在保证黄磷生产磷高效逸出的同时,实现炉渣中硅、钙的协同活化,进一步生产水稻专用肥,实现黄磷渣的高值化利用。改性黄磷渣的元素分析、X射线衍射(XRD)及扫描电镜(SEM)表征结果表明:添加作物所需营养元素助剂的黄磷在1 450 ℃熔融60 min,磷逸出率达到95.56%,黄磷渣中有效二氧化硅质量分数为36.45%、有效氧化钙质量分数为47.46%,渣系呈良好的玻璃相结构,有利于释放活性营养元素,且源头添加的微量元素助剂保留在渣相中。根据云贵川水稻营养需肥规律及大中微量元素的协同增效配伍作用,以改性黄磷渣为主要中量元素原料,设计了水稻专用肥16N-10P2O5-14K2O+7SiO2+10CaO+0.45Zn产品。水稻专用肥元素分析结果表明:氮有效性为99%、五氧化二磷有效性为98.81%、氧化钾有效性为99.15%、二氧化硅有效性为93.88%、氧化钙有效性为88.53%、锌有效性为97.78%。

关键词: 改性, 黄磷渣, 水稻专用肥, 助剂

Abstract:

Yellow phosphorus slag is a by-product of yellow phosphorus production by electric furnace,and its annual emissions is amount to millions of tons.Its main components are CaO and SiO2.Aiming at the problems of large stock of yellow phosphorus slag and low current utilization value,nutrient element auxiliaries needed by crops were added at the source to ensure efficient escape of yellow phosphorus production and realize cooperative activation of silicon and calcium in furnace slag,so as to further produce special fertilizer for rice and realize high value utilization of yellow phosphorus slag.The elemental analysis,X-ray diffraction(XRD) and scanning electron microscopy(SEM) of modified yellow phosphorus slag showed that the yellow phosphorus added with the nutrient additives needed by crops was melted at 1 450 ℃ for 60 min,and the phosphorus escape rate reached 95.56%.The effective SiO2 content in the yellow phosphorus slag was 36.45%,and the effective CaO content was 47.46%.The slag system showed good glass phase structure,which was conducive to release active nutrients,and remain the trace element additives added from the source in the slag phase.According to the rule of nutrient fertilizer requirement of rice in Yunnan,Guizhou,Sichuan and the synergistic synergism and compatibility of large,medium and trace elements,a special rice fertilizer product 16N-10P2O5-14K2O+7SiO2+10CaO+0.45Zn was designed with modified yellow phosphorus residue as the main medium element raw materials.The results of element analysis showed that the effectiveness of N,P2O5,K2O,SiO2,CaO and Zn was 99%,98.81%,99.15%,93.88%,88.53% and 97.78%,respectively.

Key words: modification, yellow phosphorus slag, rice special fertilizer, auxiliary

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