烧结温度对添加镁渣制备陶粒支撑剂性能的影响
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摘要
采用山西阳泉铝矾土和煤矸石为主要原料,工业废弃物镁渣为添加剂,在1180～1350℃下烧结制备陶粒支撑剂。对比分析各温度下陶粒体积密度,视密度和破碎率的变化趋势,利用XRD和SEM对陶粒的物相及微观形貌进行了表征。探讨了烧结温度对添加镁渣制备陶粒支撑剂性能的影响,同时明确了最好性能陶粒支撑剂对应的最佳烧结温度。结果表明:烧结温度为1250℃时,陶粒支撑剂的体积密度为1. 39 g/cm~3,视密度为2. 84 g/cm~3,48 MPa闭合压力下破碎率为6. 87%,52 MPa闭合压力下破碎率为8. 64%。在该温度下,陶粒的性能较好,烧结致密度很高。
Bauxite and coal gangue from Shanxi Yangquan were used as the main raw materials,industrial waste magnesium slag as additive,and ceramic proppants were sintered at 1180-1350 ℃. The changes of bulk density,apparent density and breakage ratio of the ceramic proppants were analyzed at each temperature,the XRD and SEM were used to characterize the phase and morphology of the ceramic proppants. The effect of sintering temperature on the performance of ceramic proppants was discussed,And know the best performance of ceramic proppants corresponding to the optimal sintering temperature.The results show that the ceramic proppants sintered at a sintering temperature of 1250 ℃ have bulk density of 1. 39 g/cm~3,apparent density of 2. 84 g/cm~3,breakage ratio of 6. 87% and 8. 64% at a closing pressure of 48 MPa and 52 MPa, respectively. The ceramic proppants prepared at this temperature have good performance and high density.
Bauxite and coal gangue from Shanxi Yangquan were used as the main raw materials,industrial waste magnesium slag as additive,and ceramic proppants were sintered at 1180-1350 ℃. The changes of bulk density,apparent density and breakage ratio of the ceramic proppants were analyzed at each temperature,the XRD and SEM were used to characterize the phase and morphology of the ceramic proppants. The effect of sintering temperature on the performance of ceramic proppants was discussed,And know the best performance of ceramic proppants corresponding to the optimal sintering temperature.The results show that the ceramic proppants sintered at a sintering temperature of 1250 ℃ have bulk density of 1. 39 g/cm~3,apparent density of 2. 84 g/cm~3,breakage ratio of 6. 87% and 8. 64% at a closing pressure of 48 MPa and 52 MPa, respectively. The ceramic proppants prepared at this temperature have good performance and high density.
引文
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[2]陈耀斌.高强度低密度陶粒压裂支撑剂的研究[D].太原:太原理工大学,2017.
[3]接金利,刘洪升,陈丽.高压低渗油气藏GSB-1型压裂支撑剂研究与应用[J].钻井液与完井液,2004(2):33-35.
[4]刘挺,王菊侠,曹义平,等.添加铁粉制备低密度中强度陶粒支撑剂及性能研究[J].陶瓷,2017(1):30-34.
[5]Ji H P,Fang M H,Huang Z H,et al.Effect of La2O3additives on the strength and microstructure of mullite ceramics obtained from coal gangue and c-Al2O3[J].Ceram.Int.,2013,39:6841-6846.
[6]Wu T T,Wu B L.Corrosion resistance of ceramic proppant in BaO-CaO-P2O5-Al2O3system[J].Corrosion Science,2012,63:399-403.
[7]Wu T T,Wu B L,Zhao S A.Acid resistance of silicon-free ceramic proppants[J].Materials Letters,2013,92:210-212.
[8]章启军,刘育鑫,吴玉锋.金属镁渣的回收利用现状[J].再生资源与循环经济,2011,4(6):30-32.
[9]李亚芳.镁渣填充材料的制备及其性能研究[D].西安:西安建筑科技大学,2017.
[10]张程.镁渣混凝土的早期收缩[D].银川:宁夏大学,2017.
[11]张旭.镁渣在水泥生产中的应用[J].水泥,2016(12):14-16.
[12]Courtial M,Cabrillac R,Duval R.Feasibility of the manufacturing of building materials from magnesium slag[J].Studies in Environment Science,1991,48:491-498.
[13]Courtial M,Cabrillac R,Duval R.Recycling of magnesium slag in construction block form[J].Studies in Environment Science,1994,60:599-604.
[14]田玉明,王凯悦,孔祥辰,等.镁渣在陶粒支撑剂制备中的应用[J].山西冶金,2015,38(4):32-35.
[15]Hao J Y,Ma H Q,Feng X,et al.Low-temperature sintering of ceramic proppants by adding solid wastes[J].International Journal of Applied Ceramic Technology,2018,15:563-568.
[16]周少鹏.添加镁渣制备陶粒支撑剂及其性能研究[D].太原:太原科技大学,2014.
[17]李昕,李丹丹,王晋槐,等.低成本石油压裂陶粒支撑剂的研究[J].山东陶瓷,2016,39(3):6-9.
[18]Chen Y F,Wang M C,Hon M H.Kinetics of secondary mullite formation in kaolin-Al2O3ceramics[J].Scripta Materiali,2004,51(3):231-235.