Tuning wettability by controlling the layer charge and structure of organo-vermiculites

被引：20

作者：

Ding, Fan ^{[1
]}

Gao, Manglai ^{[1
]}

Wang, Jie ^{[1
]}

Shen, Tao ^{[1
]}

Zang, Weili ^{[1
]}

机构：

[1] China Univ Petr, Coll Sci, State Key Lab Heavy Oil Proc, Beijing 102249, Peoples R China

来源：

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY | 2018年 / 57卷

关键词：

Vermiculite; Layer charge; Surfactant; Organo-vermiculites; Wettability; OIL-RECOVERY; AQUEOUS-SOLUTION; ADSORPTION; SURFACE; ACID; MONTMORILLONITES; REMOVAL; TEMPERATURE; BENTONITE; ADSORBENT;

D O I：

10.1016/j.jiec.2017.08.037

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Tunable wettability was studied on series of organo-vermiculites with different layer charge. Reduced-charge vermiculites (RCVts) were fabricated via one-step-heating method, which constituted a high-middle charge system. Organo-vermiculites were prepared by four cationic surfactants and characterized by XRD, FT-IR and TG. The results indicated that organo monolayer has been formed between layers and resulted in a water repelling surface. The wettability of the organo-vermiculites was monitored by capillary rise experiments. Among those factors, layer charge took a decisive position in wettability alteration. These facts give an inspiration for regulating wettability of the high charge mineral surface. (c) 2017 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.

引用

页码：304 / 312

页数：9

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