RICE BRAN EXTRACTION USED AS PICKLING INHIBITOR IN HYDROGEN CHLORIDE ACID

J Chin Soc Corr Pro

2009, Vol. 29

Issue (2): 149-153 DOI:

技术报告

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RICE BRAN EXTRACTION USED AS PICKLING INHIBITOR IN HYDROGEN CHLORIDE ACID

HU Sheng; KANG Xiaoyang; FU Chaoyang

Hubei Key Laboratory of Materials Chemistry and Service Failure; Department of Chemistry;Huazhong University of Science and Technology; Wuhan 430074

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Abstract

Phytic acid was abstracted from the rice bran by hydrochloric acid leaching method and used as main component of corrosion inhibitor for hydrochloric acid pickling. Its inhibiting behavior on carbon steel in hydrochloric acid was investigated by means of mass loss, polarization curves and electrochemical impedance spectroscopy (EIS) methods. The results show that the corrosion inhibitor exhibits good inhibition effect for carbon steel in 1mol/L hydrochloric acid and inhibition efficiency is less affected by temperature. The results of polarization curves indicate that the corrosion inhibitor mainly prohibits the cathodic process.

Key words: rice bran phytic acid hydrochloric acid pickling corrosion inhibitor inhibition mechanism

Received: 29 May 2007

ZTFLH:

TG174.42

Corresponding Authors: FU Chaoyang E-mail: cyfu@mail.hust.edu.cn

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Cite this article:

HU Sheng KANG Xiaoyang FU Chaoyang. RICE BRAN EXTRACTION USED AS PICKLING INHIBITOR IN HYDROGEN CHLORIDE ACID. J Chin Soc Corr Pro, 2009, 29(2): 149-153.

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y2009/V29/I2/149

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