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 ›› 2021, Vol. 53 ›› Issue (3): 65-67.doi: 10.11962/1006-4990.2020-0184

• 工业技术 • 上一篇    下一篇

氯化焙烧-水浸法回收钡渣中钡的研究

尚方毓1(),苏雪桐2,尚苏滢3   

  1. 1.南风化工集团,山西运城 044000
    2.中北大学化工学院
    3.山西大学化软学院
  • 收稿日期:2020-09-12 出版日期:2021-03-10 发布日期:2021-03-11
  • 作者简介:尚方毓(1973— ),男,大学本科,高级工程师,长期从事沉淀硫酸钡、硫化钠、硫酸镁等无机盐化工设计、生产和研发工作,中国化工学会钡锶盐专家组成员;E-mial:sfy111@sohu.com

Study on recovery of barium from barium slag by chlorination roasting-water leaching process

Shang Fangyu1(),Su Xuetong2,Shang Suying3   

  1. 1. Nafine Chemical (Group) Co.,Ltd.,Yuncheng 044000,China
    2. School of Chemical Engineering,North University of China
    3. School of Automation and Software,Shanxi University
  • Received:2020-09-12 Published:2021-03-10 Online:2021-03-11

摘要:

以氯化钙为氯化剂,采用氯化焙烧-水浸取的方法处理钡渣,钡渣中的钡以氯化钡的形式被回收。通过焙烧温度、焙烧时间、氯化剂用量等一系列条件实验确定了适宜工艺条件:焙烧温度为1 000 ℃、焙烧时间为45 min、氯化钙用量为理论量的1.3倍。在此条件下钡渣中的酸溶钡可全部回收,钡的回收率为86.8%。浸出液主要成分是氯化钡和氯化钙,经过蒸发浓缩、结晶析出氯化钡产品,其质量符合GB/T 1617—2014《工业氯化钡》的要求。

关键词: 氯化钡, 钡渣, 氯化焙烧-水浸, 浸出率, 回收率

Abstract:

Barium slag was treated by chlorination roasting-hot water leaching process using CaCl2 as chlorinating agent and the barium was recovered in the form of BaCl2 from barium slag.Through a series of experiments such as roasting temperature,roasting time and chlorinating agent amount etc.,the optimal technological conditions were determined as follows:the roasting temperature is 1 000 ℃,the roasting time is 45 min and the amounts of CaCl2 is 1.3 times of the theoretical value.Under the optimal conditions,the acid dissolved barium in barium slag was recovered completely with the recovery rate of barium at 86.8%. The main components of the leaching solution were BaCl2 and CaCl2.The product of BaCl2 is obtained by evaporating,concentrating and crystallizing,which quality meets the requirements of GB/T 1617—2014,Barium Chloride for Industrial Use.

Key words: barium chloride, barium slag, chlorination roasting-water leaching, leaching rate, recovery rate

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