摘要
菱镁矿作为我国优势矿产资源之一,广泛应用于冶金、建材、化工等行业。高硅菱镁矿(SiO 2>3%,质量分数)是一种低品质菱镁矿,为难选菱镁矿矿石。采用浮选工艺可以制备出高质量的镁矿产品。将选后高硅菱镁矿合理配料后直接煅烧,可以制备镁硅砂、镁橄榄石及复合粉体材料等高附加值耐火材料,还可以制备建材、化工等原料,具有重要的经济意义和科学研究价值。本文对国内外高硅菱镁矿提纯工艺进行归纳,阐述其技术指标和提纯原理,最后介绍高硅菱镁矿的综合利用方法。
Magnesite is one of superior mineral resources in China.It has been widely used in metallurgy,building industry,chemical industry etc.High-silicon magnesite(SiO 2>3%,mass fraction)is one of low-grade and difficult-to-select magnesite with high content of SiO 2.High-quality magnesia products are prepared from high-silicon magnesite by flotation.By direct calcination of high-silicon magnesite with reasonable ingredients,high value-added refractory materials such as magnesia-silica,forsterite and composite powder materials are prepared.Important raw materials such as building materials and chemical materials are also prepared from high-silicon magnesite.Hence high-silicon magnesite has high economic and scientific research value.In the paper,the purification processes of high-silicon magnesite at home and abroad were reviewed.The purification principles and technical indicators were expounded.Finally the comprehensive utilization of high-silicon magnesite were introduced.
作者
祁欣
罗旭东
李振
周远鹏
潘振中
QI Xin;LUO Xudong;LI Zhen;ZHOU Yuanpeng;PAN Zhenzhong(School of Materials and Metallurgy,University of Science and Technology Liaoning,Anshan 114051,China;School of Metallurgy Engineering,Liaoning Institute of Science and Technology,Benxi 117004,China;Liaoning Key Laboratory of Optimization and Utilization of Non-associated Low-grade Iron Ore,Benxi 117004,China;School of Materials Science and Engineering,Yingkou Institute of Technology,Yingkou 1150145,China;Haicheng Far East Mining Co.,Ltd.,Anshan 114200,China)
出处
《硅酸盐通报》
CAS
北大核心
2021年第2期485-492,共8页
Bulletin of the Chinese Ceramic Society
基金
国家自然科学基金联合基金(U1908227)
辽宁省自然科学基金(2019-ZD-0367)。
