用K值法对硫铝酸钙含量进行定量分析研究  

Quantitative analysis of calcium sulphoaluminate content with K value method

作　　者：潘荣伟[1] 李晃[1] 佟月宇[1] 陈益兰[1] 

机构地区：[1]广西大学,广西南宁530004

出　　处：《无机盐工业》2013年第6期44-46,共3页Inorganic Chemicals Industry

基　　金：南宁市科学研究与技术开发计划项目基金(合同编号:201003061G);广西自然科学基金项目(2010GXNSFC013001)

摘　　要：以电石渣、脱硫石膏、粉煤灰等工业废渣为原料,并添加氟化钙、二氧化钛、氧化铜等不同种类和掺量的矿化剂,制备以硅酸二钙和硫铝酸钙为主要矿物的多孔胶凝材料;运用X射线衍射技术,通过K值法对硫铝酸钙含量进行定量分析,探讨不同矿化剂的掺入对硫铝酸钙矿物形成的影响。实验结果表明:矿化剂的加入能够降低硫铝酸钙的形成温度,同时能促进硫铝酸钙的形成。氟化钙掺量为1%(质量分数)时硫铝酸钙的含量最高,为12.43%(质量分数);当氟化钙掺量超过1%时硫铝酸钙含量下降。二氧化钛掺量为0.5%(质量分数)时硫铝酸钙含量最高,达17.85%(质量分数);当二氧化钛掺量超过1.5%时硫铝酸钙含量下降较为明显。氧化铜适宜的掺量为0.5%～1.0%(质量分数),掺量超过1.5%时硫铝酸钙含量显著下降。Porous cementing material,with dicalcium silicate and calcium sulphoaluminate as the main minerals was pre- pared by adding different kinds and amounts of mineralizers, such as calcium fluoride, titanium oxide, and copper oxide, with some industrial waste residues like fly-ash,carbide slag,desnlfurization gypsum,and so on as the raw materials.Calcium sulphoaluminate content was analyzed quantitatively with K value method by XRD technology, and the effect of different min- eralizers on the formation of calcium sulphoaluminate was investigated.Experiment results showed that the addition of miner- alizer could decrease the formation temperature of calcium sulphoaluminate and promote its formation.For calcium fluoride, when its doping amount reached 1% （mass fraction,same blew）,the content of calcium sulphoaluminate was the highest, reached 12.43%, and when its amount exceeded 1%, calcium sulphoaluminate content began to decline.For titanium dioxide, when it doping amount reached 0.5%, the content of calcium sulphoaluminate was the highest, reached 17.85%, and when the its amount exceeded 1.5% ,the content of caleium sulphoaluminate reduced obviously.For copper oxide,the optimum doping amount was at 0.5%-1.0%,when its amount was more than 1.5%, the content of calcium sulphoaluminate reduced obviously.

关 键 词：矿化剂 硫铝酸钙 XRD定量分析 

分 类 号：TQ172[化学工程—水泥工业]