磷石膏脱水制度与中试生产研究  

STUDY ON THE DEHYDRATION TECHNOLOGY AND MIDDLE EXPERIMENTAL MANUFACTURE OF PHOSPHOGYPSUM

作　　者：彭志辉[1] 彭家惠[1] 张建新[1] 

机构地区：[1]重庆建筑大学材料科学与工程系,400045

出　　处：《建筑技术开发》2000年第4期40-43,共4页Building Technology Development

基　　金：国家自然科学基金!资助项目 (磷石膏中杂质影响机理及其资源化研究5 970 80 14 )

摘　　要：通过宏观性能试验 ,结合石膏相分析、过饱和度及结晶水测定及DSC、SEM分析 ,对磷石膏的适宜炒制制度以及预处理方式对炒制建筑石膏性能的影响进行了研究 ,介绍了采用生石灰中和预处理磷石膏工业性生产建筑石膏的性能、能耗与经济分析。本文还介绍了煅烧磷石膏胶结材的性能试验结果。实验室研究与生产实践表明 。By means of substantial composition analysis, measurement of degree of supersaturation and content of consitution water, DSC, SEM, as well as macro\|property experiments, the proper calcining technology and the effects of different pretreatment methods on the microstructure of hardened body and properties of plaster of paris calcined from phosphogypsum were studied. This paper presents the properties, energy consumption, economic analysis of plaster of paris produced from pretreated phosphogypsum with quick lime in plant. Experimental result on the properties of anhydrate\|Ⅱ binder calcined from phosphogypsum at 800℃ is also described. Through laboratory investigation and production practice, results show that gypsum binder with excellent properties can be prepared from phosphogypsum neutralized with lime. \[

关 键 词：磷石膏 脱水 建筑石膏 妙制 煅烧 

分 类 号：TQ177.375[化学工程—硅酸盐工业] TQ177.377