无机盐工业
主管:中海油天津化工研究设计院有限公司
主办:中海油天津化工研究设计院有限公司
   中海油炼油化工科学研究院(北京)有限公司
   中国化工学会无机酸碱盐专业委员会
ISSN 1006-4990 CN 12-1069/TQ

无机盐工业 ›› 2012, Vol. 44 ›› Issue (3): 30-.

• 论文 • 上一篇    下一篇

均相沉淀法制备超细氢氧化镁

刘有智,白 梅,申红艳,邱尚煌   

  1. 中北大学,山西省超重力化工工程技术研究中心,山西太原 030051
  • 发布日期:2012-03-12

Preparation of superfine magnesium hydroxide by homogeneous precipitation method

 LIU  You-Zhi, BAI   Mei, SHEN  Hong-Yan, QIU  Shang-Huang   

  1. Research Center of Shanxi Province for High Gravity Chemical Engineering and Technology,
    North University of China,Taiyuan 030051,China
  • Online:2012-03-12

摘要: 以氯化镁、氢氧化钠为原料,采用均相沉淀法制备超细氢氧化镁。研究了分散剂种类对氢氧化镁产率和粒径的影响,以及分散剂种类、氯化镁浓度、反应温度等因素对氢氧化镁沉降速率的影响,同时分别选择水、乙醇两种不同的反应介质,对氢氧化镁的粒径及产率进行对比。结果表明,以葡萄糖作为分散剂,氯化镁浓度为0.75 mol/L,反应温度为60 ℃,所得氢氧化镁产率较高,且粒径较小(约为6.4 μm)、粒度分布较均匀。

关键词: 氢氧化镁, 沉降速率, 超细, 均相沉淀法

Abstract: Superfine magnesium hydroxide was prepared by homogeneous precipitation method with magnesium chloride and sodium hydroxide as raw materials.Influence of different dispersants on product yield and particle size,and the influence of different dispersants,magnesium chloride concentration,and temperature etc.on settlement rate of magnesium hydroxide were investigated.Meanwhile the product particle sizes and yields were compared while the water and ethanol were selected as the reaction media respectively.Results showed that when the glucose as dispersant and under the conditions of 0.75 mol/L magnesium chloride concentration,and 60 ℃ reaction temperature,magnesium hydroxide production rate was high,and the particle size was small (about 6.4 μm) with more uniform distribution.              

Key words: magnesium hydroxide;settlement rate, superfine, homogeneous precipitation method

中图分类号: