WEI Dong-tian1,2, GONG Guo-hong1, MENG Yong1,2, WU Zheng-ping3,YIN Zong-ju3, XIE Yu-min3
(1.The State Key Laboratory of Ore Deposit Geochemistry, Institute of geochemistry, Chinese Academy of Sciences, Guiyang 550002, China;
2.University of Chinese Academy of Sciences, Beijing 100049, China;
3.Guizhou Jiutian Gaoyuan Porcelain Insulator Company Ltd., Bijie 551700, China)
Abstract: The results of using atomic absorption spectroscopy (AAS) and X-ray diffraction (XRD) to test Zuoyun clay in Shanxi province and Bijie clay in Guizhou Province show that Zuoyun clay and Bijie clay have little difference with respect to various chemical components, but have a large difference in phase compositions. Zuoyun clay is mainly composed of kaolinite and quartz (85%－90%). There is a high quartz content (about 20%), together with a small amount is montmorillonite, illite, hornblende and other minerals. However, the quartz-type Bijie clay is mainly composed of kaolinite (85%－90%), sericite (1%－20%) and quartz (1%－10%), together with a small amount of montmorillonite, chlorite, hornblende and so on. The results of sintering production trials demonstrate that a reasonable proportion of Bijie clay can produce quality porcelain electrical insulators.
Key words: clay; porcelain electrical insulator; AAS; XRD; phase compositions
ACTA MINERALOGICA SINICA Vol. 34, No. 4, 2014, Page 547-552
