金属铍生产中烟尘综合回收利用的工艺研究  

Research on Comprehensive Recovery and Utilization of Smoke and Dust in Metal Beryllium Production

作　　者：雷湘 Lei Xiang(Changsha Institute of Mining and Metallurgy Co.,Ltd.,Hu'nan,410100)

机构地区：[1]长沙矿冶研究院有限责任公司,湖南410100

出　　处：《当代化工研究》2020年第24期138-140,共3页Modern Chemical Research

基　　金：国家重点研发计划固废资源化专项“铜冶炼危废源头减量及全过程控制技术与示范”项目,课题编号:2018YFC1900304“铜冶炼废酸梯级回收与氟氯分步脱除技术”。

摘　　要：本文主要阐述了从金属铍生产过程中产生的含铍烟尘(包括分解烟尘和还原烟尘)中回收铍及有用资源的工艺研究。分解烟尘氟化铵加净化剂净化提纯,还原烟尘用化学方法回收其中的铍,使铍以氟化铍或氟铍酸的形式存在,同时与净化后的氟化铵一起用于生产金属铍,使废渣得到资源化综合利用,减少生产成本,提高铍的回收率。回收铍后的氟化镁渣经再除杂、提纯后用于制造陶瓷、玻璃等的助熔剂。此技术的成功研发还可用于处理以前储存的烟尘,为企业挖潜增效提出一个新的思路。实现了经济和社会双重效益。This paper mainly describes the technological research on recovery of beryllium and useful resources from beryllium-containing smoke and dust(including decomposition smoke and dust and reduction smoke and dust)produced in the production process of metal beryllium.Ammonium fluoride in smoke and dust is decomposed and purified by adding a purifying agent,then,the smoke and dust is reduced,and beryllium in it is recovered by chemical method,so that beryllium exists in the form of beryllium fluoride or fluoroberyllium acid.At the same time,it is used together with purified ammonium fluoride to produce metal beryllium,so that the waste residue resource can be comprehensively utilized,thus reducing the production cost and improving the recovery rate of beryllium.The magnesium fluoride slag after beryllium recovery is used to make fluxing agents for ceramics and glass after impurity removal and purification.The successful research and development of this technology can also be used to treat the previously stored smoke and dust,which provides a new idea for enterprises to tap the potential and increase efficiency,and achieves both economic and social benefits.

关 键 词：分解烟尘 还原烟尘 废渣资源化 铍回收率 综合回收利用 

分 类 号：T[一般工业技术]