Wettability of the Organic Bentonite Modified by MDFFA Mixed With  Other Alkyl Quaternary Ammonnium Salts

Journal of Petrochemical Universities ›› 2008, Vol. 21 ›› Issue (1): 21-24.

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Wettability of the Organic Bentonite Modified by MDFFA Mixed With Other Alkyl Quaternary Ammonnium Salts

HAN Fan-zhen, GAO Mang-lai**, LIU Yong-bin

Faculty of Chemical Science and Engineering, China University of Petroleum, Beijing 102249,P.R.China

Received:2007-04-28 Published:2008-03-20 Online:2017-06-28

MD膜驱剂与烷基季铵盐复配改性粘土的润湿性

韩翻珍, 高芒来** , 刘永斌

中国石油大学(北京)化学科学与工程学院,北京102249

作者简介:韩翻珍(1980-),女,内蒙古五原县,硕士。
基金资助:
北京市教委共建计划项目资助(XK114140479)。

Abstract

Abstract:

Washburn method was applied to investigate on the wettability of the organic bentonite modified by molecular deposition filming flooding agent (MDFFA) mixed with tetraethyl ammonium bromide ［(Et)₄NB］, dodecyl trimethyl ammonium bromide (DTAB) or hexadecyl trimethyl ammonium bromide (CTAB). The results show that the organic bentonite absorbed MDFFA is more hydrophilic than that of organic bentonite absorbed (Et)₄NB,DTAB,CTAB, then the oil wettability of organic bentonite absorbed MDFFA is lower than others. For the solution of MDFFA mixed with (Et)₄NB,DTAB or CTAB, with the increase of MDFFA volume proportion the organic bentonite is more hydrophilic and the oil wettability is lower, especially for the organic bentonite treated by the solution of MDFFA mixed with (Et)₄NB, when (Et)₄NB mixed with a little MDFFA the organic bentonite is more hydrophilic than that of absorbed (Et)₄NB and the oil wettability is lower obviously.

Key words: Bentonite , , Molecular deposition filming flooding agent (MDFFA) , , Quaternary ammonium salt , , Modified by mixed system , , Wettability

摘要： 用Washburn法对比了单分子双季铵盐(MD膜驱剂)、四乙基溴化铵[(Et) ₄ NB]、十二烷基三甲基溴
化铵(DTAB)、十六烷基三甲基溴化铵(CTAB)单独及复配溶液对粘土润湿性的影响。研究结果表明,以MD膜驱
剂、(Et) ₄ NB,DTAB,CTAB单独作为改性剂,粘土吸附MD膜驱剂的亲水性大于(Et)₄NB,DTAB,CTAB,而亲油性
均小于(Et) ₄ NB,DTAB,CTAB。MD膜驱剂分别与(Et) ₄ NB,DTAB,CTAB以不同比例复配的溶液改性粘土随着
MD膜驱剂所占比例的增大亲水性增强,亲油性减弱;尤其当MD膜驱剂以较小比例与短链季铵盐(Et) ₄NB复配时,
比(Et) ₄ NB单独改性的亲水性明显增强,而亲油性明显减弱

关键词: 膨润土 , , MD膜驱剂 , , 季铵盐 , 复配改性 , , 润湿性

HAN Fan-zhen, GAO Mang-lai*, LIU Yong-bin.

Wettability of the Organic Bentonite Modified by MDFFA Mixed With Other Alkyl Quaternary Ammonnium Salts

[J]. Journal of Petrochemical Universities, 2008, 21(1): 21-24.

韩翻珍, 高芒来*,刘永斌. MD膜驱剂与烷基季铵盐复配改性粘土的润湿性[J]. 石油化工高等学校学报, 2008, 21(1): 21-24.

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Wettability of the Organic Bentonite Modified by MDFFA Mixed With Other Alkyl Quaternary Ammonnium Salts

MD膜驱剂与烷基季铵盐复配改性粘土的润湿性

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