化学共沉淀法制备β-磷酸三钙的条件研究  

Synthesizing Conditions of β-tricalcium Phosphate by Co-precipitation Method

作　　者：李素芹[1] 宋邦才[1] 张军[1] 王俊凤[1] 王志锋[1] 

机构地区：[1]河南科技大学化工与制药学院,河南洛阳471003

出　　处：《河南师范大学学报（自然科学版）》2007年第3期112-114,共3页Journal of Henan Normal University(Natural Science Edition)

基　　金：河南省科技攻关项目(0524240014);河南科技大学重大科技预研专项(2004ZD005)

摘　　要：对化学共沉淀法制备β-磷酸三钙的工艺条件进行了系统研究.采用正交实验,将产物分子中钙磷原子的摩尔比即n(Ca)/n(P)作为控制指标,对影响该指标的4个要素在4个水平上进行考察,并对实验数据进行了直观分析.结果表明,当控制反应物的钙磷源配比为1.50、pH值为11、反应温度为25℃、反应时间为3 h时,制得的β-磷酸三钙纯度最高,并用化学分析法和XRD进一步确证了实验结果.The optimal synthesizing conditions of β-tricalcium phosphate by co-precipitation method were studied. By way of orthogonal design,the molar ratio of calcium and phosphorus, or n（Ca）/n（p） in the products were designed as controlled index, the molar ratio of reactants, pH, reaction temperature and reaction time have been optimized according to the orthogonal table, and direct analysis of the results were also carried out. It is shown that the molar ratio of reactant of 1.50, pH of 11, reaction temperature of 25℃ and reaction time of 3 h are the best synthesizing conditions. The molar ratio of reactant and pH remarkably affect the n（Ca）/n（P）. Under the optimal conditions the β-trialcium phosphate with high purity was prepared and verified by chemical analysis and XRD method.

关 键 词：化学共沉淀法 Β-磷酸三钙 化学分析 

分 类 号：TQ127[化学工程—无机化工]