摘要
以二级铝矾土细粉为主要原料,陶粒支撑剂废品细粉为辅助原料,同时添加0~4%(w)的铝酸钙水泥(CA50),经制粒成球、干燥、烧成等制成压裂支撑剂试样。考察了CA50加入量对支撑剂试样体积密度、破碎率、酸溶解度等性能的影响,并进行了XRD、SEM、EDS分析。结果表明:1)烧成试样中未检测到莫来石,主要由刚玉、铁铝钛酸盐固溶体(FeAlTiO 5)、钙长石和玻璃相组成;且随着CA50加入量的增加,刚玉相和FeAlTiO 5逐渐减少,钙长石相和玻璃相逐渐增多。2,随着CA50加入量的增加,烧成试样的体积密度和抗破碎能力呈先增大后减小的变化趋势,添加3%(w)的CA50时最大。3)随着CA50加入量的增加,烧成试样的酸溶解度逐渐增大,表明其抵抗酸溶液侵蚀的能力持续下降。
Fracturing proppant was prepared using second grade bauxite powder as the main starting material,ceramic proppant waste powder as the auxiliary raw material,adding 1 mass%-4 mass%of calcium aluminate cement(CA50)as additive,granulating into balls,drying,and firing.The influences of the CA50 addition on properties of the proppant samples such as the bulk density,the breakage ratio and the acid solubility were determined;meanwhile,XRD,and SEM and EDS analyses were conducted.The results show that(1,no mullite is detected,the samples mainly contain corundum,iron-aluminium titanate(FeAlTiO 5),anorthite,and glass;as the CA50 addition increases,corundum and FeAlTiO 5 decrease,anorthite and glass increase;(2,with the increasing CA50 addition,the bulk density and the crushing resistance of the sintered samples first increase and then decrease,and the maximum value appears with 3 mass%CA50;3)with the increasing CA50 addition,the acid solubility of the sintered samples increases gradually,indicating that the resistance to acid solution erosion keeps declining.
作者
张梦真
陆昕昱
尹蕊
张国强
郭利朋
Zhang Mengzhen;Lu Xinyu;Yin Rui;Zhang Guoqiang;Guo Lipeng(Henan Building Materials Research and Design Institute Co.,Ltd.,Zhengzhou 450002,Henan,China)
出处
《耐火材料》
CAS
北大核心
2021年第2期111-115,共5页
Refractories
基金
河南省科研开发专项(豫科院2019101)。
关键词
铝酸钙水泥
压裂支撑剂
体积密度
视密度
酸溶解度
物相组成
calcium aluminate cement
fracturing proppant
bulk density
apparent density
acid solubility
phase composition
