二甘醇用于胶体Sb_2O_5的制备及稳定作用  

Preparation and stabilization of colloidal Sb_2O_5 using diethylene glycol as stabilizer

作　　者：胡勇[1] 李侃社[1] 肖欢[1] 丁胜春[1] 

机构地区：[1]西安科技大学化学与化工学院,陕西西安710054

出　　处：《西安科技大学学报》2009年第5期603-606,共4页Journal of Xi’an University of Science and Technology

基　　金：陕西省教育厅专项课题(06JK241)

摘　　要：采用二甘醇为稳定剂,以H2O2为氧化剂,将Sb2O3氧化,制得胶体Sb2O5。通过正交实验法优选出最佳制备工艺条件为:n(H2O2)/n(Sb2O3)=3,m(H2O)/m(Sb2O3)=6,m(二甘醇)/m(Sb2O3)=0.3,温度95℃,反应2h。该条件下,Sb2O3转化率达到94%,透光率80.2%。实验结果表明:采用二甘醇作为稳定剂,可使Sb2O5粒子稳定存在1a以上而不发生聚沉。Using diethylene glycol as stabilizer and hydrogen peroxide as oxidant,antimony trioxide is oxidized and colloid antimony pentoxide is obtained.The best preparation conditions:n(H2O2)/n(Sb2O3)=3,m(H2O)/m(Sb2O3)=6,m(diethylene glycol)/m(Sb2O3)=0.3,T=95 ℃,time=2h.From these conditions,Sb2O3's conversion rate is 94% and transmittance is 80.2%.The results show that diethylene glycol as stabilizer can make Sb2O5 particles stabilize one year without sedimentation.

关 键 词：胶体五氧化二锑 二甘醇 稳定剂 转化率 透光率 

分 类 号：O614.433[理学—无机化学]