江西某铜尾矿制备发泡陶瓷的正交试验研究
|
摘要
我国尾矿资源的综合利用一直是一个难题。在研究尾矿及辅助原料化学成分组成及X射线衍射分析基础上,通过前期探索实验及尾矿用量、废石-8用量、钠长石用量、发泡剂用量、粉磨时间、烧成温度和烧成时间的7因素3水平正交试验,最终确定了发泡陶瓷的最佳组成配方为尾矿用量55wt%,废石-8用量25wt%,钠长石用量20wt%,白云石掺量为5wt%,发泡剂掺量0.3wt%;最佳工艺流程为磨矿时间15min,烧成温度1200℃,保温时间60min。按照最佳工艺流程制备实验发泡陶瓷样块,其最终表观密度为605kg/m~3,抗压强度为5.3MPa,孔隙率为72.7%,吸水率为1.4%,为铜尾矿的高附加值综合利用提供了一个新的解决方案。
The comprehensive utilization of tailings resources in China has always been a difficult problem. On the basis of studying the composition of chemical composition and X ray diffraction analysis of tailings and auxiliary materials, the optimum composition of foamed ceramics was determined by the 7 factors, 3 levels of orthogonal test, including the amount of tailings, the amount of waste stone, the amount of sodium feldspar, the amount of foaming agent, the amount of foaming agent, the grinding time, the firing temperature and the firing time, based on the study of the composition of chemical composition and the analysis of the chemical composition of tailings and auxiliary materials. The amount of tailings is 55 wt%, the amount of waste stone is 25 wt%, the amount of sodium feldspar is 20 wt%, the amount of dolomite is 5 wt%, and the amount of the foaming agent is 0.3 wt%; the best process is grinding time 15 min, the sintering temperature is 1200, and the heat preservation time is 60 min. The final apparent density of ceramic sample was 605 kg/m~3, the compressive strength was 5.3 Mpa, the porosity was 72.7%, and the water absorption rate was 1.4%. It provides a new solution for the comprehensive utilization of copper tailings with high added value.
The comprehensive utilization of tailings resources in China has always been a difficult problem. On the basis of studying the composition of chemical composition and X ray diffraction analysis of tailings and auxiliary materials, the optimum composition of foamed ceramics was determined by the 7 factors, 3 levels of orthogonal test, including the amount of tailings, the amount of waste stone, the amount of sodium feldspar, the amount of foaming agent, the amount of foaming agent, the grinding time, the firing temperature and the firing time, based on the study of the composition of chemical composition and the analysis of the chemical composition of tailings and auxiliary materials. The amount of tailings is 55 wt%, the amount of waste stone is 25 wt%, the amount of sodium feldspar is 20 wt%, the amount of dolomite is 5 wt%, and the amount of the foaming agent is 0.3 wt%; the best process is grinding time 15 min, the sintering temperature is 1200, and the heat preservation time is 60 min. The final apparent density of ceramic sample was 605 kg/m~3, the compressive strength was 5.3 Mpa, the porosity was 72.7%, and the water absorption rate was 1.4%. It provides a new solution for the comprehensive utilization of copper tailings with high added value.
引文
[1]廖丰庄.关于矿山尾矿综合利用技术的探索[J].低碳世界,2017(3):93-94.
[2]张宏泉,李琦缘,文进,等.铜尾矿资源的利用现状及展望[J].现代业,2017,33(1):127-131.
[3]余晶,李秋月.尾矿资源综合利用现状及政策研究[J].内蒙古科技与经济,2017(14):52-54.
[4]崔正旭.论尾矿综合利用现状调查及其意义[J].低碳世界,2017(12):76-77.
[5] Feng Wang,Hao Gu,Jinwei Yin,et al. Porous Si3N4 fabrication via volume-controlled foaming and their sound absorption properties[J].Journal of Alloys and Compounds,2017,727.
[6]罗学维,石朝军,陈上,等.电解锰渣制备轻质发泡陶瓷保温板工艺及性能研究[J].中国业,2016,34(6):125-129.
[7]陈鑫.金矿尾矿的利用现状及综合化利用远景分析[J].世界有色金属,2017(20):32,34.
[8]区雪连,郭艳平,李保庆.重金属尾矿发泡陶瓷制备技术的探讨[J].世界有色金属,2016(14):143-144.
[9]邓坚勇,胡丽芳,罗淑芬,等.发泡剂在发泡陶瓷保温板中发泡原理的研究[J].佛山陶瓷,2017,27(1):34-36.
[10]杜程,庄剑英,张彦林,等.我国发泡陶瓷保温板发展现状与市场前景[J].建材发展导向,2018,16(12):7-9.
[11]张栋,张燕,吕宝伟,等.发泡陶瓷材料与装配式建筑[J].砖瓦世界,2018(4):57-59.
[2]张宏泉,李琦缘,文进,等.铜尾矿资源的利用现状及展望[J].现代业,2017,33(1):127-131.
[3]余晶,李秋月.尾矿资源综合利用现状及政策研究[J].内蒙古科技与经济,2017(14):52-54.
[4]崔正旭.论尾矿综合利用现状调查及其意义[J].低碳世界,2017(12):76-77.
[5] Feng Wang,Hao Gu,Jinwei Yin,et al. Porous Si3N4 fabrication via volume-controlled foaming and their sound absorption properties[J].Journal of Alloys and Compounds,2017,727.
[6]罗学维,石朝军,陈上,等.电解锰渣制备轻质发泡陶瓷保温板工艺及性能研究[J].中国业,2016,34(6):125-129.
[7]陈鑫.金矿尾矿的利用现状及综合化利用远景分析[J].世界有色金属,2017(20):32,34.
[8]区雪连,郭艳平,李保庆.重金属尾矿发泡陶瓷制备技术的探讨[J].世界有色金属,2016(14):143-144.
[9]邓坚勇,胡丽芳,罗淑芬,等.发泡剂在发泡陶瓷保温板中发泡原理的研究[J].佛山陶瓷,2017,27(1):34-36.
[10]杜程,庄剑英,张彦林,等.我国发泡陶瓷保温板发展现状与市场前景[J].建材发展导向,2018,16(12):7-9.
[11]张栋,张燕,吕宝伟,等.发泡陶瓷材料与装配式建筑[J].砖瓦世界,2018(4):57-59.