矿产综合利用Issue(2)：40-44,5.DOI:10.3969/j.issn.1000-6532.2013.02.011
菱镁矿煅烧制备高活性MgO工艺
Study on the Process of the Preparation of Activated MgO by Calcining Magnesite
摘要
Abstract
The research on the preparation of activated MgO and Mg-based cement was carried on in this paper. The magnesite of the little storage capacity rotary furnace was adopted to prepare light-burnt MgO. The activation of calcinate under different condition was determined by the citric acid coloration method and the correction hydration method and the influence of calcination temperature, holding time and heating rate on the activation of calcinate was analyzed. Then the light-burnt MgO was used as one of the basic raw materials to prepare Mg-based cement and cement block. Meanwhile,the influence of strength properties of Mg-based cement and different curing methods were studied. The results showed that the strength of the Mg-based cement was relatively low in the standard curing condition, but the carbonated curing can greatly improve the level of Mg-based cement strength, reaching the level of the ordinary portland cement. At the same time, according the weight gain of the cement block during the course of carbonated curing,the feasibility of using high activity of MgO as CO2 capture and sealing materials was analyzed.关键词
菱镁矿/煅烧工艺/活性MgO/镁基水泥/碳化养护Key words
Magnesite/ Calcining process/ Activated MgO/ Mg-based cement/ Carbonated curing分类
矿业与冶金引用本文复制引用
徐鹏,朱静,高小明,康征,杨家宽..菱镁矿煅烧制备高活性MgO工艺[J].矿产综合利用,2013,(2):40-44,5.基金项目
华中科技大学大学生创新基金项目(NO.101048776) （NO.101048776）
