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现代化工  2019, Vol. 39 Issue (11): 180-184    DOI: 10.16606/j.cnki.issn0253-4320.2019.11.039
  工艺与设备 本期目录 | 过刊浏览 | 高级检索 |
硫酸铵转化法制取硫酸钾新工艺设计研究
程加林1, 池永庆1, 贾攀锋2
1. 太原科技大学化学与生物工程学院, 山西 太原 030021;
2. 山西华普检测技术有限公司, 山西 太原 030199
Design research of a new process for production of potassium sulfate by ammonium sulfate conversion method
CHENG Jia-lin1, CHI Yong-qing1, JIA Pan-feng2
1. School of Chemical and Biological Engineering, Taiyuan University of Science and Technology, Taiyuan 030021, China;
2. Shanxi Huapu Testing Center, Taiyuan 030199, China
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摘要 介绍了硫酸铵转化法制取硫酸钾新工艺设计及实验研究。依据体系的水盐相图,设计出的新工艺由硫酸钾的制备、中间热析硫酸钾铵的制备和氯化铵的制备3部分组成。根据新设计的工艺参数和操作指标,利用工业级原料进行了实验研究。实验数据与新设计工艺参数吻合较好。制备的硫酸钾含K2O质量分数51.63%,氧化钾利用率达92.16%。工艺过程中产生的固体热析硫酸铵钾以及精制硫酸钾母液、粗氯化铵母液、重结晶氯化铵母液等3种液体返回系统循环利用。整个工艺过程闭路循环,无污染排放。
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程加林
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贾攀锋
关键词:  硫酸铵转化法  硫酸钾  新工艺设计  热析硫酸钾铵    
Abstract: The design and experimental study on a new process for the preparation of potassium sulfate via ammonium-potassium sulfate conversion method is introduced.According to the water-salt phase diagram of the system,the new process designed is composed of three parts:potassium sulfate preparation,thermal precipitation of ammonium-potassium sulfate,and preparation of ammonium chloride.The experimental study is conducted through using industrial grade raw materials based on newly-designed process parameters and operation indexes.The obtained experimental data are in good agreement with the newly-designed process parameters.The prepared K2SO4 contains 51.63% of K2O and the utilization rate of K2O reaches 92.16%.Ammonium-potassium sulfate,refined potassium sulfate mother liquor Ⅱ,crude ammonium chloride mother liquor Ⅳ,and recrystallized ammonium chloride mother liquor Ⅴ generated during the process are all recycled back to the system.The whole process is a closed loop and there is no pollutant to discharge.
Key words:  ammonium sulfate conversion method    potassium sulfate    design of new process    thermally precipitated ammonium-potassium sulfate
收稿日期:  2019-07-10      修回日期:  2019-08-30           出版日期:  2019-11-20
TQ443.2  
通讯作者:  程加林(1962-),男,本科,高级工程师,从事实验教学及煤化工、无机盐的工艺研究等工作,通讯联系人,1985051@tyust.edu.cn。    E-mail:  1985051@tyust.edu.cn
引用本文:    
程加林, 池永庆, 贾攀锋. 硫酸铵转化法制取硫酸钾新工艺设计研究[J]. 现代化工, 2019, 39(11): 180-184.
CHENG Jia-lin, CHI Yong-qing, JIA Pan-feng. Design research of a new process for production of potassium sulfate by ammonium sulfate conversion method. Modern Chemical Industry, 2019, 39(11): 180-184.
链接本文:  
https://www.xdhg.com.cn/CN/10.16606/j.cnki.issn0253-4320.2019.11.039  或          https://www.xdhg.com.cn/CN/Y2019/V39/I11/180
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