吴易梅,孙玉柱,路贵民,宋兴福,于建国

• 1:华东理工大学国家盐湖资源综合利用工程技术研究中心
• 2:上海污染控制与生态安全研究院

摘要(Abstract)：

针对常温合成的氢氧化镁(MH)易团聚,分散性差的问题,提出结晶-水热法制备分散性良好的六角片状氢氧化镁,确定了制备MH的最优工艺条件是以12 moL×L~(-1) NaOH为水热矿化剂,7%固含量的MH料浆为前驱体在170 ℃下水热5 h。结果表明制备的MH纯度达99.66%,白度达97.66,比表面积为3.57 m~2×g~(-1),平均一次粒径为0.69μm,颗粒厚度为185nm,(101)面微观应变为2.30×10~(-3),符合一级阻燃型氢氧化镁的标准。水热后的水热矿化剂,可以作为制备MH前驱体的沉淀剂;MH反应得到的NaCl滤液既可作为反应过程的底衬液,又能通过电解生产NaOH,实现了资源的循环利用。

关键词(KeyWords)： 氢氧化镁;水热改性;分散性;六角片状;阻燃

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(U1607112);; 国家重点研发计划(2016YFC0401203);; 上海市优秀学术/技术带头人计划资助(18XD1424600)

作者(Author): 吴易梅,孙玉柱,路贵民,宋兴福,于建国

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