Indolizine quaternary ammonium salt inhibitors part II: a reinvestigation of an old-fashioned strong acid corrosion inhibitor phenacyl quinolinium bromide and its indolizine derivative

2018 ◽  
Vol 42 (15) ◽  
pp. 12977-12989 ◽  
Author(s):  
Yefei Wang ◽  
Zhen Yang ◽  
Fengtao Zhan ◽  
Zhifeng LYu ◽  
Chengyou Han ◽  
...  
Keyword(s):  
Corrosion Inhibitor ◽  
Corrosion Inhibition ◽  
Ammonium Salt ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salt ◽  
Acid Corrosion ◽  
Strong Acid ◽  
Acid Corrosion Inhibitor

Anti-corrosion inhibition was dramatically improved by transforming heterocyclic ammonium inhibitors into their dimer indolizine derivatives.

scholarly journals Correction: Indolizine quaternary ammonium salt inhibitors part II: a reinvestigation of an old-fashioned strong acid corrosion inhibitor phenacyl quinolinium bromide and its indolizine derivative

2019 ◽  
Vol 43 (43) ◽  
pp. 17123-17124
Author(s):  
Yefei Wang ◽  
Zhen Yang ◽  
Fengtao Zhan ◽  
Zhifeng LYu ◽  
Chengyou Han ◽  
...  
Keyword(s):  
Corrosion Inhibitor ◽  
Ammonium Salt ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salt ◽  
Acid Corrosion ◽  
Strong Acid ◽  
Acid Corrosion Inhibitor

Correction for ‘Indolizine quaternary ammonium salt inhibitors part II: a reinvestigation of an old-fashioned strong acid corrosion inhibitor phenacyl quinolinium bromide and its indolizine derivative’ by Yefei Wang et al., New J. Chem., 2018, 42, 12977–12989.

Indolizine quaternary ammonium salt inhibitors, part III: insights into the highly effective low-toxicity acid corrosion inhibitor – synthesis and protection performance

2019 ◽  
Vol 43 (47) ◽  
pp. 18461-18475 ◽  
Author(s):  
Zhen Yang ◽  
Yefei Wang ◽  
Fengtao Zhan ◽  
Wuhua Chen ◽  
Mingchen Ding ◽  
...  
Keyword(s):  
Corrosion Inhibitor ◽  
Ammonium Salt ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salt ◽  
Acid Corrosion ◽  
Propargyl Alcohol ◽  
High Yield ◽  
Dipolar Cycloaddition ◽  
Acid Corrosion Inhibitor ◽  
Low Toxicity

Three indolizine derivatives (Di-BQC, QM-DiBQC, PyM-DiBQC) were prepared facilely in high yield via 1,3-dipolar cycloaddition. These compounds exhibit good inhibition for steel in concentrated acid without the synergism of propargyl alcohol (PA).

Synthesis and evaluation of hexamethylenetetramine quaternary ammonium salt as corrosion inhibitor

2019 ◽  
Vol 70 (10) ◽  
pp. 1907-1916 ◽  
Author(s):  
Dexin Liu ◽  
Xiaolong Qiu ◽  
Minglu Shao ◽  
Jianchong Gao ◽  
Jiaju Xu ◽  
...  
Keyword(s):  
Corrosion Inhibitor ◽  
Ammonium Salt ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salt

Study on Synthesis of Alkynoxymethyl Benzyl Quaternary Ammonium Salt and its Corrosion Inhibition for Blast Furnace Gas Pipeline

2014 ◽  
Vol 672-674 ◽  
pp. 684-687
Author(s):  
Hu Zhang ◽  
Fu Rong Zhou
Keyword(s):  
Blast Furnace ◽  
Corrosion Inhibition ◽  
Ammonium Salt ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salt ◽  
Raw Materials ◽  
Electrochemical Process ◽  
Gas Pipeline ◽  
Blast Furnace Gas ◽  
Inhibition Performance

Two kinds of alkynoxymethyl benzyl quaternary ammonium salt (ABQAS) were synthesized by raw materials of paraformaldehyde, propiolic alcohol, organic amine, benzyl chloride and ethanol under nitrogen protection, toluene as carrying agent. The products were characterized by FTIR. According to the characteristics of blast furnace gas pipeline, quaternary ammonium salt type compound corrosion inhibitor formulas were designed, and their corrosion inhibition performance were evaluated by weight-loss method and electrochemical method. The results showed that the products were synthesized as expected, the two kinds of products had excellent inhibition performance to the cathode electrochemical process of A3 carbon steel, and the corrosion inhibition efficiency in simulative blast furnace gas reached to 100%.

scholarly journals Synthesis and Characterization of Nano-SiO2@octadecylbisimidazoline Quaternary Ammonium Salt Using as Acidizing Corrosion Inhibitor

2021 ◽  
Author(s):  
Yunfeng Liu ◽  
Xingde Zhang ◽  
Zhengsong Qiu ◽  
Lili Chen
Keyword(s):  
High Temperature ◽  
Corrosion Inhibition ◽  
Ammonium Salt ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salt ◽  
Steel Sheet ◽  
Testing Machine ◽  
High Concentration ◽  
N80 Steel ◽  
Quantum Chemistry Calculations

Abstract Aiming at the current situation that the existing acidizing corrosion inhibitors are difficult to apply to high temperature, high concentration acid, and other complex conditions. This paper uses nano-SiO2 as the core and preferably functional monomers to synthesize nano-SiO2@octadecylbisimidazoline quaternary ammonium salt. Analytical methods such as nuclear magnetic resonance, infrared, SEM were used for characterization. The corrosion inhibition performance of the N80 steel sheet by nano-SiO2@octadecylbisimidazoline quaternary ammonium salt in 20% concentrated hydrochloric acid was studied using the high-temperature corrosion testing machine and adsorption isotherm model. Combined with quantum chemistry calculations to explore its mechanism of action. The results show that nano-SiO2@octadecylbisimidazoline quaternary ammonium salt has good high-temperature resistance. When the temperature is 180℃ and the dosage of nano-SiO2@octadecylbisimidazoline quaternary ammonium salt is 4%, the corrosion inhibition rate is 61.42g·m− 2·h− 1. Studies have shown that the adsorption of nano-SiO2@octadecylbisimidazoline quaternary ammonium salt on the surface of the N80 steel sheet follows the Langmuir isotherm adsorption model, which is spontaneous chemical adsorption.

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