分散剂对制备超细氢氧化镁影响的实验研究  

Experiment Study of Dispersing Agent Effects on Superfine Magnesium Hydroxide Preparation

作　　者：孙永明[1] 钱海燕[2] 刘建兰[1] 俞斌[1] 

机构地区：[1]南京工业大学理学院,南京210009 [2]南京工业大学材料科学与工程学院,南京210009

出　　处：《非金属矿》2005年第4期54-56,共3页Non-Metallic Mines

摘　　要：以菱镁矿煅烧所得氧化镁为原料,水化制备超细氢氧化镁。在水化反应进行一段时间后加入分散剂,考察了分散剂种类和用量对氢氧化镁颗粒大小的影响。用偏光显微镜对氢氧化镁进行表征、扫描电镜观察产品微观大小与形貌,在添加适量分散剂条件下,可制得粒径为200～400nm、形状为六边形的片状氢氧化镁。Magnesia calcined from magnesite as raw material, superfine magnesium hydroxide has been produced by hydration. During the process of hydration dispersing agent being added,the relationships among the kinds and amounts of additives and the particle size of magnesium hydroxide have been studied.Polarizing microscope and SEM are used to characterize the products and the particle size and morphology of magnesium hydroxide is investigated.It is proved that magnesium hydroxide particle size is 200～400nm and plate shape can be manufactured when proper dispersing agent exists.

关 键 词：氢氧化镁 分散剂 实验研究 超细 制备 扫描电镜观察 偏光显微镜 水化反应 颗粒大小 菱镁矿 六边形 煅烧 片状 

分 类 号：TQ132.2[化学工程—无机化工] TQ314.255