煤系高岭土制备微孔硅酸钙  

Preparation of Micro-porous Calcium Silicate with Coal Series Kaolin

作　　者：伍泽广[1,2] 石松林[1] 刘钦甫[1] 

机构地区：[1]中国矿业大学(北京) [2]湖南科技大学

出　　处：《金属矿山》2011年第1期162-164,共3页Metal Mine

基　　金："十一五"国家科技支撑计划项目(编号:2009BAB49B02);国家高技术研究发展计划(863计划)项目(编号:2008AA06Z109)

摘　　要：通过水热合成的方法,以煤系高岭土和石灰乳为原料制备出微孔硅酸钙粉体,并用XRD,SEM,TGA/DSC等对硅酸钙粉体进行了表征。结果表明,硅酸钙主要以半结晶态形式存在,粉体颗粒的粒径大小为10～20μm不等,结构松散,含有大量孔径为1～2μm的不规则微孔。Through hydrothermal synthesis process, micro-porous calcium silicate powder was prepared with coal kaolin and lime as raw materials. The powder was characterized by the measure of XRD, SEM, TGA/DSC and FT-IR. The results showed that the powder was semi-crystalline calcium silicate with particle size of 10~20 μm, and the particles owned loose internal structure with many irregular-shaped micro-pores of 1~2 μm.

关 键 词：煤系高岭土 水热合成 硅酸钙 

分 类 号：TQ174.61[化学工程—陶瓷工业]