一种快速检测建筑石膏相组成的方法  

A rapid method for detecting the phase composition of buildinggypsum

作　　者：龚颖 陈雨 韦井秀 GONG Ying;CHEN Yu;WEI Jingxiu(Wengfu(Group)Co.,Ltd.Guiyang 550002,China)

机构地区：[1]瓮福(集团)有限责任公司,贵州贵阳550002

出　　处：《生态产业科学与磷氟工程》2025年第3期118-122,共5页Eco-industry Science & Phosphorus Fluorine Engineering

摘　　要：对采用烘箱干燥法和石膏相组成分析仪法测定建筑石膏粉相组成的结果进行对比分析,确定石膏相组成分析仪的测定条件。结果表明:半水相水化时间为0.5 h,测试温度、恒质量时间设置为可溶性无水石膏(AⅢ)45℃、30 s,半水石膏(HH)50℃、90 s,二水石膏(DH)140℃、40 s时,石膏相组成分析仪法与标准烘箱干燥法的检测结果具有良好的一致性。该方法大幅度缩短了检测时间,降低了人工分析成本,同时测定步骤简单易操作,能够满足生产所需,可进一步助力磷石膏资源综合利用。The determination results of phase composition of building gypsum powder by oven method and gypsum phase composition analyzer method are compared and analyzed,and the determination conditions of gypsum phase composition analyzer are determined.The results show that when the hydration time of hemihydrate phase is O.5 h,and the test temperature,constant weight time are set to soluble anhydrous gypsum(AⅢ)45℃,30 s,hemihydrate gypsum(HH)50℃,90 s and dihydrate gypsum(DH)140℃,40 s,there is a good agreement in results with gypsum phase composition analyzer method and the standard oven method.This method significantly reduces detection time and manual analysis costs,while the measurement steps are simple and easy to operate,which can meet production needs and further assist in the comprehensive utilization of phosphogypsum resources.

关 键 词：磷石膏 无水相 半水相 二水相 烘箱干燥法 石膏相组成分析仪 

分 类 号：TQ177.3[化学工程—硅酸盐工业] TQ075