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- [22] EFFECT OF METHACRYLIC ACID CONTENT AND MOLECULAR-WEIGHT OF COPOLYMER ON ELECTRODEPOSITION OF WATER-SOLUBLE ACRYLIC FILM-FORMING MATERIALKOLLOIDNYI ZHURNAL, 1973, 35 (06): : 1100 - 1103SPASOV, VAKRYLOVA, IAKVASNIKO.YPZUBOV, PI
Effect of Hydroxyl Content and Molecular Weight of Biodegradable Ethylcellulose on Demulsification of Water-in-Diluted Bitumen Emulsions
被引：74
|作者：
Feng, Xianhua
[1
]
Wang, Shengqun
[1
]
Hou, Jun
[1
]
Wang, Louxiang
[1
]
Cepuch, Carolyn
[1
]
Masliyah, Jacob
[1
]
Xu, Zhenghe
[1
]
机构：
[1] Univ Alberta, Dept Chem & Mat Engn, Edmonton, AB T6G 2G6, Canada
基金：
加拿大自然科学与工程研究理事会;
关键词：
OIL-EMULSIONS;
POLYOXYALKYLENATED AMINES;
DESTABILIZATION;
BREAKING;
STABILIZATION;
ASPHALTENES;
SURFACTANTS;
CELLULOSE;
POLYMER;
FILMS;
D O I：
10.1021/ie102071q
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Ethylcellulose (EC) polymers with different hydroxyl content and molecular weight were synthesized in tetrabutyl ammonium fluoride/dimethyl sulfoxide medium. Their performance for demulsification of water-in-naphtha diluted bitumen emulsions was evaluated. It was found that EC with 4.5 wt % hydroxyl (degree of hydroxyl substitution, 2.4) is the most effective in demulsification. The demulsification efficiency of EC could be linked to its interfacial activity and potency of flocculation. The potency of flocculation by EC depends on its molecular weight and hydroxyl content, which affect molecular interactions. EC with higher molecular weight was found to be more effective in the demulsification of water-in-naphtha diluted bitumen emulsions.
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页码：6347 / 6354
页数：8
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