摘要
针对氢氧化镁制备工艺中Mg(OH)2极难沉降和过滤,考察了Mg(OH)2微粒在聚丙烯酰胺絮凝体系中沉降效果。在晶种法基础上,通过正交试验和单因素试验,确定了加快Mg(OH)2沉降速度的最佳工艺条件:搅拌时间10 min,PAM加量3 mL,反应温度60℃;最佳晶种循环次数为6次。为Mg(OH)2沉降工艺的工业化应用提供指导。
In view of the fact that magnesium hydrate is very difficuh to be settled and filtered in magnesi- um hydrate preparation process, the settling effect of magnesium hydrate particles in polyacrylamide floccula- tion system was studied. The optimum process conditions identified via orthogonal test and single factor experi- ment based on seeding method are as follows： mixing time： 10 min, addition of PAM： 3 mL, reaction temperature： 60 ℃, optimum seed crystal cycle number： 6. This research is useful for directing the industrial appli- cation of magnesium hydrate settlement technology.
出处
《精细石油化工进展》
CAS
2011年第10期16-19,共4页
Advances in Fine Petrochemicals
关键词
氢氧化镁
絮凝剂
沉降速度
晶种法
聚丙烯酰胺
magnesium hydrate
flocculant
settling velocity
seeding method
polyacrylamide
