钠化膨润土对氢氧化镁铝的凝聚与助乳化作用  

Coagulation of Magnesium Aluminum Hydroxide Induced by Na-activated Bentonite & Its Co-emulsifying Effect on Paraffin/water

作　　者：田鹏飞[1] 刘温霞[1] 

机构地区：[1]山东轻工业学院制浆造纸工程省级重点学科,山东济南250353

出　　处：《非金属矿》2008年第1期30-33,共4页Non-Metallic Mines

基　　金：国家自然科学基金资助项目(20476053);山东省自然科学基金资助项目(Y2005B17)

摘　　要：以氟化钠将钙基膨润土钠化,研究钠化膨润土对氢氧化镁铝的凝聚及其对液体石蜡/水体系的乳化与稳定作用。结果表明,少量钠化膨润土可引起氢氧化镁铝的微弱聚集,提高分散体系的黏度,改善氢氧化镁铝对液体石蜡/水界面的吸附作用,获得稳定性良好的O/W型石蜡乳状液,并增大油滴直径。Na-activated bentonite prepared by ion-exchanging of Ca-bentonite with sodium fluoride was used to induce the coagulation of magnesium aluminum hydroxide （MAH） and as an MAH promoter to emulsify paraffin/water. The results show that small amount of Na-bentonite can cause the weak coagulation of MAH with a significant viscosity enhancement, which can improve the adsorption of MAH on the paraffin/water boundary surface. Consequently, stable paraffin/water emulsion with increased droplet size is obtained.

关 键 词：氢氧化镁铝 钠化膨润土 凝聚 助乳化作用 石蜡乳液 

分 类 号：TQ658[化学工程—精细化工] TS727.2[轻工技术与工程—制浆造纸工程]