中国钼业Issue(2)：7-9,3.DOI:10.13384/j.cnki.cmi.1006-2602.2015.02.003
浅谈 SO2尾气回收生产七水亚硫酸钠工艺
THE PROCESS OF RECOVERING NA2 SO3 · 7H2 O FROM SO2-CONTAINING EXHAUST
陈志刚1
作者信息
- 1. 厦门钨业股份有限公司，福建厦门361026
- 折叠
摘要
Abstract
The flue dust from molybdenum concentrate roasting process passes through the cyclone dust collection and washing tower for recovering the fine molybdenum particle which would be returned to the maln flow.The sulfur dioxide in exhaust is absorbed by sodium hydroxide solution, and is converted to the saturated solution of sodium bi-sulfite.And then by removing the iron by sodium sulfide, decolorizing with active carbon, crystallizing at low tem-perature, filtering the solution, the sodium sulfite heptahydrate crystals is separated.This process not only recovers the slfur dioxide and molybdenum, but also is important for building environment-friendly company.关键词
烟尘/二氧化硫/碱吸收/七水亚硫酸钠Key words
flue dust/sulfur dioxide/alkli absorbtion/sodium sulfite heptahydrate分类
矿业与冶金引用本文复制引用
陈志刚..浅谈 SO2尾气回收生产七水亚硫酸钠工艺[J].中国钼业,2015,(2):7-9,3.
