天然沸石(粉)鉴别试验方法研究  

Research on Distinguishing Test Method of Natural Zeolite(Powder)

作　　者：孙炎云 王永海[2] 李康[2,3] 冷发光[2] 张敬[2] 钟立博 

机构地区：[1]浙江天工建设集团有限公司,浙江绍兴312000 [2]中国建筑科学研究院,北京100013 [3]北京科技大学,北京100083

出　　处：《工程质量》2017年第2期89-94,共6页Construction Quality

摘　　要：总结与归纳天然沸石(粉)鉴别的试验方法,并对其进行系统的验证试验和分析,结果表明:GB/T 21695-2008《饲料级沸石粉》中的天然沸石鉴别试验方法判定标准存在一定的局限性,可能存在误判情况;吸铵值试验是一种定量、灵敏的方法,可对待测样品进行鉴定,并根据吸铵值结果对沸石粉品位定级;扫描电镜(SEM)下沸石粉部分颗粒具有独特的微观形貌,辨识度较高,有条件的单位亦可采用此方法来对样品进行鉴别。This paper concluded and summarized distinguishing test method of natural zeolite （powder）, and carried on systematic verification test and analysis, the result showed that Identify test method standard of natural zeolite had certain limitations in GB/T 21695-2008 ＂Food grade-Zeolite Meal＂, there may be a miscalculation; ammonium absorption value test was a quantitative and sensitive method, which could identify sample to be tested, and grading of zeolite powder according to the results of ammonium absorption value; zeolite powder particles had unique microstructure under scanning electron microscope（SEM）,its identification was higher, enterprises with the condition could use this method to identify the samples.

关 键 词：天然沸石鉴别 吸铵值试验 扫描电镜 

分 类 号：TU755[建筑科学—建筑技术科学]