云峰磷酸装置提高萃取率降低矿耗的措施

详细信息    查看全文 | 推荐本文 |

英文篇名：Measures to Increase Extraction Rate and Reduce Rock Consumption by the Phosphoric Acid Plant of Yunfeng 作者：念吉红 英文作者：NIAN Ji-hong;Yunfeng Branch of Yuntianhua International Chemical Co. ,Ltd.; 关键词：磷酸萃取率 ; 磷矿利用率 ; 矿浆粒度 ; 萃取工艺 ; 控制措施 英文关键词：phosphoric acid extraction rate;;phosphate rock utilization rate;;particle size of slurry;;extraction process;;control measure 中文刊名：LLFT 英文刊名：Sulphur Phosphorus & Bulk Materials Handling Related Engineering 机构：云南云天化国际化工有限公司云峰分公司; 出版日期：2014-11-30 出版单位：硫磷设计与粉体工程 年：2014 期：No.123 语种：中文; 页：LLFT201406008 页数：6 CN：06 ISSN：32-1590/TQ 分类号：5+21-25

摘要

介绍云天化云峰分公司产能为280 kt/a的磷酸装置工艺流程以及萃取槽的性能及工艺控制指标,分析了矿耗、矿浆粒度、萃取反应温度、石膏中不溶磷情况,总结了酸解反应工艺指标的优化控制、过滤系统絮凝剂的使用、闭路磨矿系统改造等措施,现场检测数据证明有效地提高了萃取率降低磷矿消耗。
        The process flow of the phosphoric acid plant with a production capacity of 280 kt / a of Yunfeng Branch of Yuntianhua,the performance of extraction tank,and the process control figures are outlined. The rock consumption,particle size of slurry,temperature of extraction reactor,non-soluble phosphorus in phosphogypsum are analyzed,and the optimization of reaction process figures,application of flocculating agent in the filtration system,revamp of closed milling system,etc. are summarized. Site testing data show that it has effectively increased the extraction rate while reducing the consumption.

引文

[1]念吉红.云峰分公司280 kt/a磷酸装置运行情况及技改[J].磷肥与复肥,2011,26(4):20~24.
    [2]袁俊秀,金汉强,赵思远.湿法磷酸生产的工艺条件探析[J].硫磷设计与粉体工程,2008(3):8~11.
    [3]江善襄,方天翰,戴元法,等.磷酸、磷肥和复混肥料[M].北京:化学工业出版社,1999:170.
    [4]邓金玉.二水法湿法磷酸生产中提高磷收率的探析[J].磷肥与复肥,2005,20(4):34~36.