高钛高炉渣富镁铝浸取液共沉淀-水热法制备镁铝水滑石  

Preparation of Mg-Al hydrotalcite from leaching solution of high-titanium blast furnace slag by co-precipitation-hydrothermal process

作　　者：王澜 赵海迪 何思祺 彭同江[4] 黄晨 唐玉梅 王岩[1] Wang Lan;Zhao Haidi;He Siqi;Peng Tongjiang;Huang Chen;Tang Yumei;Wang Yan(School of Environment and Resources,Southwest University of Science and Technology,Mianyang Sichuan 621010,China;Guangyuan Conch Cement Co.,Ltd.,Guangyuan Sichuan 628000,China;College of Resources and Environmental Engineering,Mianyang Normal University,Mianyang Sichuan 621010,China;Institute of Mineral Materials&Application,Southwest University of Science and Technology,Mianyang Sichuan 621010,China)

机构地区：[1]西南科技大学环境与资源学院,四川绵阳621010 [2]广元海螺水泥有限责任公司,四川广元628000 [3]绵阳师范学院资源环境工程学院,四川绵阳621010 [4]西南科技大学矿物材料及应用研究所,四川绵阳621010

出　　处：《化工矿物与加工》2022年第5期49-53,共5页Industrial Minerals & Processing

基　　金：大学生创新创业训练计划项目(S202010619016)。

摘　　要：以提取钛后的高钛高炉渣富含镁铝的浸出液为原料,通过共沉淀-水热法制备镁铝水滑石,并通过单因素试验确定了制备镁铝水滑石的优化条件,结果表明,在水热温度为150℃、水热时间为14 h、镁铝摩尔比为2.5∶1的优化条件下,其沉淀-水热反应得到的镁铝水滑石的相对结晶度和晶型完整度均较高,可以实现高钛高炉渣的综合利用。In this paper the preparation of Mg-Al hydrotalcite from the leaching solution of high-titanium blast furnace slag after extraction of titanium by co-precipitation-hydrothermal process was studied,during which the optimal operation conditions were determined with performance of single-factor experiments.The results show that the Mg-Al hydrotalcite with high crystallinity and high crystal integrity can be obtained by co-precipitation-hydrothermal reaction under the conditions of 150 ℃ hydrothermal temperature,14 hours hydrothermal time,and magnesium-aluminum ratio of 2.5∶1 by weight.This makes it possible for comprehensive utilization of high-titanium blast furnace slag.

关 键 词：高钛高炉渣 浸出液 共沉淀-水热法 镁铝水滑石 结晶度 晶型完整度 

分 类 号：X754[环境科学与工程—环境工程]