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    Your Position ：Home->Past Journals Catalog->2016 Vol.4

    Research on Synthesis of lmidazoline Corrosion Inhibitor and Inhibition Performance
    Author of the article:Li Junlong, Xu Xing, Zou Lifei
    Author's Workplace：1.Shaanxi Yuyang Petroleum Technology Engineering Co., Ltd.,2.School of Earth Science and Resources, Chang'an University
    Key Words：lmidazoline; Inhibitor; Weight loss method; Tung oil; Rosin
    Abstract：In order to solve the serious corrosion to pipeline equipment caused by oilfield sewage, injection of corrosion inhibitor into oilfield sewage treatment process is a kind of economical and practical method of anti-corrosion. lmidazoline corrosion inhibitor was synthesized using tung oil and rosin reacted with dimethylbenzene through two-step dewatering. The main influencing factors in the process of the synthesis were discussed and better synthesis process was got as follows: the molar ration of mixture of tung oil and rosin with dimethylbenzene was 1: 1.3, refluxing temperature was about 140°C for 8h, which gradually increased to 220°C . The dosage of water carrying agent was 25(wt) % of the total reaction mass, the molar ration of chloroacetic acid with imidazoline was 1: 1. The yield of the product was more than 90% under the optimized conditions. The corrosion inhibition performance of the synthesized imidazoline on A3 steel in 5% NaCl solutions were measured using weight loss method. Results showed that the synthesized imidazoline was a good corrosion inhibitor for A3 steel in experimental solutions. The inhibition efficiency of synthesized imidazoline on A3 steel in 5% NaCl solution at 45 °C was more than 90% when the concentration of inhibitor was 150× 10-6.

     


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