利用制溴废液生产高纯活性氧化镁的工艺研究  

Produces the high pure active magnesia craft research using the system bromine waste liquid

作　　者：杨维强[1] 肖根图 

机构地区：[1]江苏金桥盐化集团有限责任公司台南盐场,江苏连云港222066

出　　处：《化工科技市场》2009年第10期20-23,共4页Chemical Technology Market

摘　　要：在总结国内高纯活性氧化镁不同生产方法的基础上,研究了利用制溴废液先制得优质氯化镁(MgCl2.6H2O),再进行煅烧制取高纯活性氧化镁的新工艺,其工艺过程包括蒸发、保温沉降、冷却结晶、一次煅烧、洗涤、二次煅烧等。制得的产品具有纯度高w(MgO)≥99%,低硫w(SO24-)≤0.1%、低氯w(Cl-)≤0.1%、高活性且工艺简单、生产成本低等特点,便于工业化生产。On the basis of concluding different production methods of Chinese high -purity active magnesium oxide,a new technology was studied that high - quality magnesium chloride （ MgCl2 · 6H2O） was first obtained by using waste liquid frome bromine system ,then high purity active magnesium oxide by further calcination. The process is including evaporation, heat deposition, cooling crystallization, first calcination, washing, second calcinations, etc. The production has characteristics of high quality ω （MgO） ≥99% ,low sulfur ω（SO4^2- ） ≤0.1% ,low -chlorine ω （Cl^-） ≤0. 1%, high activity, simple process, and low cost etc. ,which surely will be propitious to industrialized manufacture.

关 键 词：制溴废液 高纯活性氧化镁 工艺研究 

分 类 号：TQ132.2[化学工程—无机化工]