铁尾矿制备微晶玻璃的研究  

Investigation on Preparation of Glass-ceramics with Iron Tailings

作　　者：南宁[1,2] 崔孝炜 孙强强[1,2] 赵威 王之宇[1,2] 李峰 何奔[1] Nan Ning;Cui Xiaowei;Sun Qiangqiang;Zhao Wei;Wang Zhiyu;Li Feng;He Ben(Shangluo University,Shangluo,Shaanxi,China;Shaanxi Key Laboratory of Comprehensive Utilization of Tailings Resources,Shangluo,Shaanxi,China)

机构地区：[1]商洛学院,陕西商洛726000 [2]陕西省尾矿资源综合利用重点实验室,陕西商洛726000

出　　处：《矿产综合利用》2022年第3期47-50,共4页Multipurpose Utilization of Mineral Resources

基　　金：陕西省科技惠民计划项目(2018ZY-HM-01);陕西省自然科学基金企业联合基金(2019JLM-49);陕西省教育厅服务地方科学研究计划项目(18JC010);商洛市科技计划项目(SK2018-03-02);陕西省尾矿资源综合利用重点实验室开放基金(2017SKY-WK009)。

摘　　要：采用烧结法以商洛某尾矿库现存铁尾矿为主要原料制备微晶玻璃。对基础玻璃熔制较佳工艺进行了优化,并探究晶化温度和保温时间对微晶玻璃的抗压强度、密度以及热膨胀系数的影响。结果表明:在熔制温度1400℃,保温2 h条件下熔制的基础玻璃性能较优;在晶化温度900℃,保温2 h条件下晶化处理得到的微晶玻璃试样性能较优,其抗压强度达到158.32 MPa,密度为2.74 g/cm^(3),热膨胀系数为6.8×10^(-6)K^(-1)。The glass-ceramics were prepared by sintering method from an iron tailings in Shangluo area.The optimum process parameters of melting base glass were optimized.The effects of the crystallization temperature on the compressive strength,density and thermal expansivity of glass-ceramics were investigated.The results show that optimal performance of the base glass melted can be obtained at the melting temperature of 1400℃ and melting time of 2 h.Moreover the best properties of the glass-ceramics such as compressive strength of 158.32 MPa,density of 2.74 g/cm^(3),thermal expansivity of 6.8×10^(-6)K^(-1) could be obtained at the crystallization temperature of 900℃ and holding time of 2 h.

关 键 词：铁尾矿 微晶玻璃 抗压强度 热膨胀系数 

分 类 号：TD989[矿业工程—选矿] TQ174[化学工程—陶瓷工业]