Cr(VI) sorption behavior from aqueous solutions onto polymeric microcapsules containing a long-chain quaternary ammonium salt: Kinetics and thermodynamics analysis

2009 ◽  
Vol 172 (1) ◽  
pp. 262-268 ◽  
Author(s):  
Giancarlo Barassi ◽  
Andrea Valdés ◽  
Claudio Araneda ◽  
Carlos Basualto ◽  
Jaime Sapag ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Ammonium Salt ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salt ◽  
Sorption Behavior ◽  
Kinetics And Thermodynamics ◽  
Thermodynamics Analysis ◽  
Polymeric Microcapsules ◽  
Long Chain

Extractive spectrophotometric determination of mercury(II) with 4-(2-pyridylazo)resorcinol and a long-chain quaternary ammonium salt

The Analyst ◽  
1985 ◽  
Vol 110 (4) ◽  
pp. 391 ◽  
Author(s):  
Yerramilli Anjaneyulu ◽  
P. Chandra Mouli ◽  
M. Ravi Prakasa Reddy ◽  
Kavi Purapu Chandra Sekhar
Keyword(s):  
Spectrophotometric Determination ◽  
Ammonium Salt ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salt ◽  
Long Chain

Synthesis of Quaternary Ammonium Salt Cationic Surfactant with Long-Chain Alkyl and Epoxy Groups

2012 ◽  
Vol 554-556 ◽  
pp. 864-867 ◽  
Author(s):  
Zong Cheng Miao ◽  
Fang Wang ◽  
Deng Deng ◽  
Lei Wang ◽  
Jian Zhou Yang
Keyword(s):  
Cationic Surfactant ◽  
Ammonium Salt ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salt ◽  
Traditional Method ◽  
Raw Materials ◽  
Reaction Conditions ◽  
Important Intermediate ◽  
Epoxy Groups ◽  
Long Chain

The quaternary ammonium salt cationic surfactant with long-chain alkyl and epoxy groups is very important intermediate product to synthesis novel functional surfactants. In this paper, a kind of quaternary ammonium salt cationic surfactant with long-chain alkyl and epoxy groups was synthesized by traditional method with epichlorohydrin and N-octadecyldimethylamine as raw materials. During the synthesis, the best reaction conditions have been obtained, that the reaction temperature is 35 °C, the reaction time is 4 h and the best mol ratio of epichlorohydrin to timethylamine is 5:1. In addition, the synthesized intermediate with long-chain alkyl and epoxy groups plays a very important roles in the development of cationic surfactant.

Preparation of modified montmorillonite with different quaternary ammonium salts and application in Pickering emulsion

2019 ◽  
Vol 43 (29) ◽  
pp. 11543-11548 ◽  
Author(s):  
Zeyu Yang ◽  
Wanxu Wang ◽  
Xiumei Tai ◽  
Guoyong Wang
Keyword(s):  
Ammonium Salt ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salt ◽  
Pickering Emulsion ◽  
Quaternary Ammonium Salts ◽  
Ammonium Salts ◽  
Modified Montmorillonite ◽  
Long Chain

The emulsion stabilized with long-chain quaternary ammonium salt-modified montmorillonite has better stability.

Catalyst- and oxidant-free electrochemical para-selective hydroxylation of N-arylamides in batch and continuous-flow

2020 ◽  
Vol 22 (19) ◽  
pp. 6437-6443
Author(s):  
Cheng-Kou Liu ◽  
Meng-Yi Chen ◽  
Xin-Xin Lin ◽  
Zheng Fang ◽  
Kai Guo
Keyword(s):  
Ammonium Salt ◽  
Quaternary Ammonium ◽  
Continuous Flow ◽  
Quaternary Ammonium Salt ◽  
Selective Hydroxylation

A catalyst-, oxidant-, acidic solvent- and quaternary ammonium salt-free electrochemical para-selective hydroxylation of N-arylamides at rt in batch and continuous-flow was developed.

Synthesis and Performance of Polyoxy-ethylene Ester Quaternary Ammonium Salt

2013 ◽  
Vol 50 (1) ◽  
pp. 9-13 ◽  
Author(s):  
Yong-Qiang Sun ◽  
Wen-Jing Li ◽  
Wan-Xu Wang ◽  
Qiu-Xiao Li ◽  
Wieslaw Hreczuch ◽  
...  
Keyword(s):  
Ammonium Salt ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salt ◽  
And Performance
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