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
研究与开发

磷酸高效分解磷矿实验研究

  • 尹伟 ,
  • 黄进 ,
  • 解田 ,
  • 何兵兵
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  • 1.贵州大学化学与化工学院,贵州贵阳550025
    2.瓮福(集团)有限责任公司
    3.中低品位磷矿及其共伴生资源高效利用国家重点实验室
尹伟(1991— ),男,硕士,研究方向为磷化工;E-mail: 418877932@qq.com

收稿日期: 2020-03-26

  网络出版日期: 2020-09-27

基金资助

国家重点研发计划“固废资源化”重点专项(2018YFC1900206)

Experimental study on high efficiency decomposition of phosphate rock by phosphoric acid

  • Wei Yin ,
  • Jin Huang ,
  • Tian Xie ,
  • Bingbing He
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  • 1. School of Chemistry and Chemical Engineering,Guizhou University,Guiyang 550025,China
    2. Wengfu(Group) Co.,Ltd.
    3. National Key Laboratory of Efficient Utilization of Low Grade Phosphate Rock and Its Associated Resources

Received date: 2020-03-26

  Online published: 2020-09-27

摘要

为改进湿法磷酸生产工艺,提高副产石膏的品质,减少湿法磷酸固体副产物磷石膏堆存产生的经济和环保压力,进行了磷酸分解磷矿制磷酸的实验研究。采用贵州某磷矿为主要原料,研究了湿法磷酸预分解磷矿的反应条件。通过单因素实验确定了湿法磷酸分解磷矿最优反应条件:反应温度为75 ℃,磷酸与磷矿的质量比(液固比)为9,反应时间为3 h,磷酸质量分数为30%(以五氧化二磷计)。在此条件下,磷矿的分解率为98.62%。

本文引用格式

尹伟 , 黄进 , 解田 , 何兵兵 . 磷酸高效分解磷矿实验研究[J]. 无机盐工业, 2020 , 52(9) : 34 -36 . DOI: 10.11962/1006-4990.2019-0511

Abstract

In order to improve the production process of wet-process phosphoric acid,improve the quality of by-product phos-phogypsum,and reduce the economic and environmental pressure caused by the storage of solid by-products of wet-process phosphoric acid,the experiment of phosphoric acid decomposition of phosphate rock to produce phosphoric acid was carried out.Using a phosphate rock in Guizhou,China as the main raw material,the reaction conditions of pre-decomposition of phos-phate rock by wet-process phosphoric acid were studied.The optimum reaction conditions for the decomposition of phos-phate rock by wet process phosphoric acid were determined by single factor test,i.e.reaction temperature was 75 ℃,mass ra-tio of phosphoric acid to phosphate rock(liquid-solid ratio) was 9,reaction time was 3 h and mass fraction of phosphoric acid was 30%(in terms of P2O5).Under these conditions,the decomposition rate of phosphate rock was 98.62%.

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