2025年04月30日 星期三 首页   |   期刊介绍   |   编 委 会   |   投稿指南   |   出版法规   |   出版伦理   |   期刊订阅   |   联系我们   |   留言板   |   广告合作   |   ENGLISH
粉末冶金材料科学与工程  2020, Vol. 25 Issue (5): 433-439    
  工艺技术 本期目录 | 过刊浏览 | 高级检索 |
AlCl3∙6H2O中Mg杂质的去除工艺
钞晓光, 高桂梅, 王宏宾, 曹坤, 戴崟, 松丽涛, 邹萍, 王永旺
神华准能资源综合开发有限公司,鄂尔多斯 010300
Removal process of Mg impurity in AlCl3∙6H2O
CHAO Xiaoguang, GAO Guimei, WANG Hongbin, CAO Kun, DAI Yin, SONG Litao, ZOU Ping, WANG Yongwang
Shenhua Zhunneng Resources Comprehensive Development Limited Company, Erdos 010300, China
全文: PDF (486 KB)   HTML (0 KB) 
输出: BibTeX | EndNote (RIS)      
摘要 AlCl3·6H2O(ACH)是粉煤灰盐酸法提取Al2O3工艺中的重要中间产物,其纯度直接决定产品Al2O3的纯度,采用洗涤法去除ACH携带的杂质是提高其纯度的重要手段。本文从多个方面对ACH的洗涤工艺参数进行研究。通过实验发现,饱和AlCl3溶液作洗液时,采用淋洗的效果略好于搅洗,且洗涤3次与洗涤4次的洗涤效率接近;原料中杂质MgO的含量越高,洗涤后产品中杂质MgO的含量也越高,对应的洗涤效率也相应升高。采用洗涤比即ACH质量与洗液质量的比值为1:1.5的洗涤效果强于洗涤比为1:1的洗涤效果,且3次洗涤后的晶体损失率分别为19.2%和16.7%,将洗液进行重复利用后,可大幅降低晶体的损失。质量分数为29%的HCl溶液的洗涤效果略低于饱和AlCl3溶液,其3次洗涤后,晶体损失率达50%以上,重复利用后,可降低晶体的损失。
服务
把本文推荐给朋友
加入我的书架
加入引用管理器
E-mail Alert
RSS
作者相关文章
钞晓光
高桂梅
王宏宾
曹坤
戴崟
松丽涛
邹萍
王永旺
关键词 粉煤灰Al2O3AlCl3·6H2O(ACH)洗涤MgO    
Abstract:AlCl3·6H2O (ACH) is an important intermediate product in the process of extracting Al2O3 from fly ash by hydrochloric acid. The purity of ACH directly determines the purity of the product Al2O3. Among them, it is an important way to improve the purity of ACH by washing. In this paper, the washing process parameters of ACH were studied from many aspects. It was found that the washing effect of spray washing is slightly better than that of stirring washing when saturated AlCl3 solution was used as the washing solution, and the washing efficiency of thre-times washing is similar to that of four-times washing. The higher the content of impurity MgO in the raw material, the higher the impurity MgO content in the product after washing. Stimultaneously, the corresponding washing efficiency is also increased. The washing effect of the ratio of 1:1.5 (mass of ACH/ mass of washing solution)is better than that of 1:1. After three times washing, the crystal loss rate is 19.2% and 16.7%, respectively. The loss rate of crystal can be greatly reduced when the washing solution is reused. The washing effect of HCl solution with mass fraction of 29% is slightly lower than that of saturated AlCl3 solution. After three times washing, the crystal loss rate is more than 50%, and it can be reduced after the washing solution is reused.
Key wordsfly ash    Al2O3    AlCl3·6H2O(ACH)    washing    MgO
收稿日期: 2020-05-07      出版日期: 2021-01-18
ZTFLH:  TF114.3  
基金资助:国家科技部“十二五”科技支撑计划项目(2011BAA04B05)
通讯作者: 王永旺,教授级高级工程师。电话:0477-3971898;E-mail: zgrwyw@163.com   
引用本文:   
钞晓光, 高桂梅, 王宏宾, 曹坤, 戴崟, 松丽涛, 邹萍, 王永旺. AlCl3∙6H2O中Mg杂质的去除工艺[J]. 粉末冶金材料科学与工程, 2020, 25(5): 433-439.
CHAO Xiaoguang, GAO Guimei, WANG Hongbin, CAO Kun, DAI Yin, SONG Litao, ZOU Ping, WANG Yongwang. Removal process of Mg impurity in AlCl3∙6H2O. Materials Science and Engineering of Powder Metallurgy, 2020, 25(5): 433-439.
链接本文:  
http://pmbjb.csu.edu.cn/CN/     或     http://pmbjb.csu.edu.cn/CN/Y2020/V25/I5/433
版权所有 © 《粉末冶金材料科学与工程》编辑部
地址:长沙市麓山南路中南大学粉末冶金研究院 邮编:410083 电话:0731-88877163 邮箱:pmbjb@csu.edu.cn
本系统由北京玛格泰克科技发展有限公司设计开发 技术支持:support@magtech.com.cn