SHI Tianjiao¹, WANG Yulian¹, LIU Jiayi¹, XUE Chen², LI Chuang¹, XU Hao¹,YUAN Zhigang¹

(1. College of Materials Science and Engineering, Shenyang Ligong University, Shenyang 110159, China;2.AVIC SAC Commercial Aircraft Company Ltd.，Shenyang 110000, China)

Abstract: MgCl2·6H2O was used as raw material and Na2CO3 as precipitator,the nesquehonite crystals were prepared by co-precipitation method. The influence of reactant concentration, reaction temperature, reaction time and aging time on the phase composition and morphology of the product were investigated and its growth mechanism was explored. The results show that when reaction condition that the MgCl2 is 0.3 mol/L,the reaction temperature is 50 ℃,the reaction time is 15 min,thereaction temperature is 50 ℃, and the aging time is 0.5 h, the nesquehonite crystals with average diameter of 5 μm are obtained, and MgCO3·3H2O crystals growth accords with liquid-liquid-solid growth mechanism.

Keywords: nesquehonite; co-precipitation method; preparation; morphology

中图分类号：TQ132.2

文献标志码：A

文章编号：1008-5548(2021)05-0120-08

DOI:10.13732/j.issn.1008-5548.2021.05.015

收稿日期： 2021-03-23，修回日期：2021-05-18，在线出版时间：2021-08-16 17:15。

基金项目：国家自然科学基金项目，编号：51804200；辽宁省教育厅高校科研基金项目，编号：LG201927。

第一作者简介：时天骄(1997—)，男，硕士研究生，研究方向为微纳米碳酸镁系化合物的制备。E-mail：michaelstj@163.com。

通信作者简介：王余莲(1986—)，女，博士，副教授，硕士生导师，研究方向为矿物材料的制备及应用。E-mail：xinxinwyl@163.com。