锆在硫酸提浓工艺中的腐蚀研究

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Abstract Based on the current domestic waste sulfuric acid concentration in the process of zirconium corrosion as the research object, the corrosion behavior of zirconium and premembrane zirconium in sulfuric acid concentration was studied by various experimental methods.Firstly, the corrosion of zirconium alloy at different temperature and different concentration was studied by observation method and gravimetric method in laboratory,and discuss the applicable scope of waste acid concentration in zirconium.Electrochemical behavior of zirconium alloy and premembrane zirconium under 100 ℃ and 70%(mass fraction) sulfuric acid was discussed. The polarization curves were measured. The corrosion rate difference between the two samples was measured by analysis of the polarization curves. This work provides material selection support for waste sulfuric acid concentration process, and provides reference for safety service of evaporator.

Key words： zirconium alloy sulfuric acid corrosion polarization curve

Published: 01 July 2020

CLC number:

TG174.2

Fund:This work was financially supported by the Natural Science and Technology Innovation Team of Shaanxi (2019TD-037).

About author:: Peng Wang, senior engineer,mainly engaged in rare metal material processing and advanced metal material application research ; Weigang Zhang, senior engineer,mainly engaged in rare metal material processing and advanced metal material application research.

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	WANG Peng
	ZHANG Weigang
	SUN Xudong

Cite this article:

WANG Peng,ZHANG Weigang,SUN Xudong. Study on Corrosion of Zirconium in Sulfuric Acid Concentration Process[J]. Materials Reports, 2020, 34(Z1): 385-389.

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http://www.mater-rep.com/EN/ OR http://www.mater-rep.com/EN/Y2020/V34/IZ1/385