Influence of Layer Charge and Modifier on Wettability of Organo-Montmorillonite

2014 ◽  
Vol 1030-1032 ◽  
pp. 90-94
Author(s):  
Zhong Xin Luo ◽  
Mang Lai Gao ◽  
Ya Ge Ye
Keyword(s):  
Synergistic Effect ◽  
Chain Length ◽  
Quaternary Ammonium ◽  
Capillary Rise ◽  
Quaternary Ammonium Salts ◽  
Deionized Water ◽  
Ammonium Salts ◽  
Layer Charge ◽  
Oil Reservoir ◽  
Capillary Rise Method

To study the influence of layer charge and modifier on wettability plays an important role on the diagnosis of oil reservoir. In this paper, two quaternary ammonium salts (QASs) with different chain-length were used singularly or in compound form to modify the reduced-charge montmorillonites (RCMs). The wettability alterations of the organo-RCMs for deionized water and cyclohexane were studied based on capillary rise method. The results showed that RCMs singularly modified by QASs show different wettability characteristics. Moreover, there is a synergistic effect on the wettability when the RCMs are compound modified by two QASs and the organo-RCMs turn to more hydrophilic. The results of this work also indicated that it is possible to regulate the wettability of the RCMs by choosing different recipe of QASs, which is helpful to provide theoretical guidance for the oil production.

Caesium desorption from layer silicate minerals using quaternary ammonium salts

Clay Minerals ◽  
2018 ◽  
Vol 53 (3) ◽  
pp. 487-496 ◽  
Author(s):  
T. Miura ◽  
A. Sasaki ◽  
N. Suzuki ◽  
M. Endo
Keyword(s):  
Quaternary Ammonium ◽  
Quaternary Ammonium Salts ◽  
Deionized Water ◽  
Ammonium Salts ◽  
Radioactive Cesium ◽  
Layer Silicate ◽  
Ammonium Ions ◽  
Quaternary Ammonium Ions ◽  
Mineral Structure ◽  
Reference Samples

ABSTRACTThe adsorption and desorption of cesium onto layered minerals, zeolite and geochemical reference samples were studied. 0.5 g of bentonite and mica were able to adsorb 71.2 and 51.5 mg of cesium, respectively, from 50 mL of deionized water containing 200 mg/L of cesium under neutral pH condition. These amounts of cesium adsorption were greater than those reported for vermiculites (8.9 and 5.6 mg, respectively). Additionally, the cesium adsorption on mica and vermiculite remained essentially unchanged under seawater conditions, but it decreased drastically on zeolite. The cesium desorption from the layered minerals was promoted by the addition of ammonium ions, namely trioctylmethylammonium chloride and zephiramine. These ammonium ions desorb cesium from the interlayers of the minerals without destroying the mineral structure. The cesium desorption procedure using quaternary ammonium ions would be extremely useful for decontamination of soil containing the layered minerals with adsorbed radioactive cesium.

Comparison of the synergistic effect of counterions on the inhibition of mild steel corrosion in acid solution: electrochemical, gravimetric and thermodynamic studies

RSC Advances ◽  
2015 ◽  
Vol 5 (6) ◽  
pp. 4716-4726 ◽  
Author(s):  
Li Bai ◽  
La-Jun Feng ◽  
Hong-Yan Wang ◽  
Yong-Bin Lu ◽  
Xiao-Wei Lei ◽  
...  
Keyword(s):  
Synergistic Effect ◽  
Acid Solution ◽  
Mild Steel ◽  
Quaternary Ammonium ◽  
Corrosion Inhibitors ◽  
Steel Corrosion ◽  
Quaternary Ammonium Salts ◽  
Ammonium Salts ◽  
Mild Steel Corrosion ◽  
Hcl Solution

Quinoline quaternary ammonium salts 1-benzylquinoline bromide (1) and 1-benzylquinoline chloride (2) have been synthesized and then developed as corrosion inhibitors in acidic HCl solution.

scholarly journals Erratum to: Effects of particle size and chain length on flotation of quaternary ammonium salts onto kaolinite

2015 ◽  
Vol 109 (3) ◽  
pp. 317-317 ◽  
Author(s):  
Longhua Xu ◽  
Yuehua Hu ◽  
Houqin Wu ◽  
Faqin Dong ◽  
Hao Jiang ◽  
...  
Keyword(s):  
Particle Size ◽  
Chain Length ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salts ◽  
Ammonium Salts

XRD Study of Hydrophlogopite Intercalated with Alkyl Quaternary Ammonium Salt

2010 ◽  
Vol 178 ◽  
pp. 330-335
Author(s):  
Hong Juan Sun ◽  
Tong Jiang Peng ◽  
Hai Feng Liu ◽  
Jin Mei Sun
Keyword(s):  
Chain Length ◽  
Ammonium Salt ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salt ◽  
Interlayer Spacing ◽  
Quaternary Ammonium Salts ◽  
Ammonium Salts ◽  
Ammonium Bromide ◽  
X Ray Diffraction ◽  
Xrd Study

Hydrophlogopite was modified with sodium and then organically intercalated with a series of alkyl quaternary ammonium salts. The organically intercalated samples were characterized by X-ray diffraction analysis (XRD) and the effect of alkyl quaternary ammonium salt on the interlayer spacing of hydrophlogopite was discussed. The results showed that if the same alkyl quaternary ammonium salt was used to intercalate hydrophlogopite, the interlayer spacing of hydrophlogopite increased gradually with the rise of the added amount of quaternary ammonium salt, and that if different quaternary ammonium salts with the same amount were used, the interlayer spacing increased gradually with the rise of the chain length of the alkyl quaternary ammonium salts. For the alkyl quaternary ammonium salts with large chain length (n>10), the inflection point for the increasing interlayer spacing of the intercalated hydrophlogopite is at about 0.5 times of CEC. When octadecyl trimethyl ammonium bromide is used as intercalation agent and the added amount is 5 times of CEC, the interlayer spacing of hydrophlogopite is relatively maximal.

Effects of particle size and chain length on flotation of quaternary ammonium salts onto kaolinite

2014 ◽  
Vol 109 (3) ◽  
pp. 309-316 ◽  
Author(s):  
Xu Longhua ◽  
Hu Yuehua ◽  
Dong Faqin ◽  
Jiang Hao ◽  
Wu Houqin ◽  
...  
Keyword(s):  
Particle Size ◽  
Chain Length ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salts ◽  
Ammonium Salts
Sign in / Sign up

Export Citation Format

Share Document