文献类型：期刊文献

英文题名：Forsterite refractory preparation using magnesium resources from salt lake brines

作者：Zhang, Ye[1,2];Yan, Xiao[3];Wang, Li[2];Sun, Wei[2]

机构：[1]East China Univ Sci & Technol, Natl Engn Res Ctr Integrated Utilizat Salt Lake Re, Sch Chem Engn, Joint Int Lab Potassium & Lithium Strateg Resource, Shanghai 200237, Peoples R China;[2]Cent South Univ, Hunan Int Joint Res Ctr Efficient & Clean Utilizat, Sch Minerals Proc & Bioengn, Key Lab Hunan Prov Clean & Efficient Utilizat Stra, Changsha 410083, Hunan, Peoples R China;[3]SDIC Xinjiang Luobupo Potash Co LTD, Hami 839000, Xinjiang, Peoples R China

年份：2023

卷号：203

外文期刊名：MINERALS ENGINEERING

收录：;EI(收录号：20234014817518);WOS:【SCI-EXPANDED(收录号:WOS:001066811500001)】；

基金：We gratefully appreciate the financial support from the National Natural Science Foundation of China (52204268, 51974365, 91962223), the Natural Science Foundation of Hunan Province (2020JJ5747, 2020JJ5749), the Innovation-Driven Project of Central South University (No.2020CX039), the National 111 Project (No. B14034), Key Laboratory of Hunan Province for Clean and Efficient Utilization of Strategic Calcium containing Mineral Resources (No. 2018TP1002).

语种：英文

外文关键词：Salt lake brine; Combined Precipitant; Sodium metasilicate; Sodium hydroxide; Forsterite refractory materials

摘要：In this study, combined precipitants of sodium metasilicate and sodium hydroxide were used for effectively separating lithium (Li) from magnesium (Mg) in salt lake brine and meanwhile generating magnesium precipitates with high MgO/SiO2 molar ratios to produce high-performance refractory materials. When the mole of combined precipitant was 1.0, Li/Mg precipitation separation can be achieved with Mg precipitation yield of above 99.5% and Li precipitation yield of approximately 5%. The MgO/SiO2 molar ratio in magnesium precipitates can be enhanced by adjusting the mole fraction of sodium hydroxide (NaOH) in the combined precipitant. Under the condition of a NaOH mole fraction was 40%, sintering temperature of 1350 & DEG;C, and sintering time of 180 min, the prepared refractory material comprised of mainly forsterite phase and showed excellent properties of the refractoriness of 1780 & DEG;C, bulk density of 2.21 g/cm3, and compressive strength of 118.11 MPa. This study could provide a promising guide for facile production of value-added forsterite refractory materials using magnesium resources in salt lake brine.