Oxidation and Decomposition Characteristics of Organic Sulfonate in Leachables (Extracts) from 001×7 Cation Resin

doi:10.11930/j.issn.1004-9649.2016.01.049.04

Abstract

Abstract: The contents of SO42- increase significantly in the steam generator water of some nuclear power plants and the boiler water of large thermal power plants due to the applications of the condensate polishing treatment system. To find the root cause behind this, the oxidation and decomposition characteristics of organic sulfonate in the leachables (extracts) from 001×7 cation resin is studied by using ion chromatography. The results illustrate that the organic sulfonate in the leachables(extracts) from this type of cation resin will be oxidized and decomposed to SO42- by oxidant; with the temperature and time increasing, the oxidation and decomposition show an upward trend. Fe3+ in the water is the catalyst for this oxidation and decomposition. In addition, the estimation method is also put forward for calculating the maximum organic sulfonate convertible to SO42- in the leachables(extracts) to determine the stability of the organic sulfonate in the leachables (extracts).

Key words: cation resin, leachables (extracts), organic sulfonate, oxidation and decomposition

CLC Number:

TM621.8

WANG Shaolong, WU Chunhua, DING Huanru, ZHANG Weilin. Oxidation and Decomposition Characteristics of Organic Sulfonate in Leachables (Extracts) from 001×7 Cation Resin[J]. Electric Power, 2016, 49(1): 49-52.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.2016.01.049.04

https://www.electricpower.com.cn/EN/Y2016/V49/I1/49

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