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1 The imidazoline was synthesized from black acid liquid.

2 The oil-soluble imidazoline type corrosion inhibitor GAC-968 developed and manufactured by Guangzhou Petrochemical Complex was commercially experimented in crude oil atmospheric distillation tower.

3 Results showed that both types of imidazoline derivative inhibitors were mix-type inhibitors which mainly inhibited anodic processes.

4 Imidazoline is a kind of excellent corrosion inhibitor developed in the recent 30 years. It is widely used in the petroleum and natural gas production.

5 Four imidazoline borates were synthesized with two kinds of fatty acid, N-hydroxyethyl-ethylenediamine, boric acid according to the different ratio of reaction materials.

6 Then the imidazoline boric acid ester was synthesized when the intermediate reacts boric acid.

7 The tribological test results showed that the imidazoline borates had good load carrying-capacity and antiwear property, and the antiwear mechanisms were preliminarily discussed.

8 The results showed that the inhibitor imidazoline and Zn diffusion treatment techniques could effectively prevent the CO2 corrosion.

9 Results showed that imidazoline was hydrolyzed to amide by ring opening reaction under high temperature.

10 The efficiency of corrosion inhibition of imidazoline derivatives containing N, S or O for steel in hydrofluoric acid,(www.Sentencedict.com) hydrochloric acid and citric acid is studied.

11 Cationic imidazoline softener was synthesized with stearic acid, diethylenetriamide and dimethyl sulfate.

12 The structure and inhibiting principles of the imidazoline inhibitors are summarized, and the present situation of imidazoline pickling inhibitors in China is introduced.

13 Thus the inhibition behavior of composite imidazoline inhibitor LAN was studied by means of weight-loss, potentiodynamic polarization curve, and electrochemical impedance spectroscopy (EIS).

14 The cationic surfactants based on bisamide and imidazoline quaternary ammonium salts were synthesized and the content of cations was determined.

15 The performance of corrosion inhibition of self-assembled monolayers of imidazoline formed on iron substrate was characterized by means of scanning electrochemical microscopy.

16 The result shows that the inhibitive efficiency of the composite inhibitor can increase by 0.7% compared with imidazoline inhibitor, and the inhibitive efficiency for A3 iron reaches above 99%.

17 The effect of agmatine was related to activation of imidazoline receptor.

18 In this paper, laboratorial evaluation and industrial application of curing accelerator, imidazoline prepared from naphthenic acid were introduced.

19 Weight-loss method and polarization curve measurement were employed to study the inhibition mechanism of imidazoline derivate for mild steel in acidic solution with H2S.

20 Agmatine formed by the decarboxylation of L-Arginine by the enzyme L-arginine decarboxylase, has been postulated to be an endogenous ligand for imidazoline receptors (I-R).