, Volume 25, Issue 1, pp 105–113 | Cite as

Adsorption and desorption behavior of anion-exchange resin towards SO42− in the desulphurization process using citric method

  • Tao Hong
  • Guibao Qiu
  • Muhammad Ali Mehmood
  • Hao CuiEmail author


The application of weak-base anion-exchange resin for removal the SO42− from the citrate solution to guarantee its good performance for adsorption of SO2 is proposed in this work. The weak-base anion-exchange resin that has prior adsorption towards SO42− compared with citrate, allows the effective removal of such impure anion. We initially chose four kinds of resins, namely D301R, D301G, D370 and D315, to investigate their behavior upon SO42− adsorption and then determined D301R and D315 to give a comprehensive understanding towards their adsorption performance in various condition. Results indicate that D315 possessing better adsorption ability than D301R could be a potential candidate for SO42− removal from the citrate acid solution during the desulphurization process using citric method. The pretreatment of protonation for resins could effectively facilitate their adsorption behavior towards SO42− under the same pH condition. Moreover, we assume that the protonated D315 would meet the practical requirement well given its good performance.


SO42− Adsorption Resin Desorption Citric acid 



We acknowledge the financial support from National Natural Science Foundation of China (Grant No. 51104115).

Author contributions

Tao Hong guided this work while Hao Cui performed this study and wrote this paper. Tao Hong and Hao Cui contributes equally towards this research. Guibao Qiu and Muhammad Ali Mehmood helped to revised version and improve the writing.

Compliance with ethical standards

Conflict of interest

All authors declare that they have no conflict of interest.


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Authors and Affiliations

  1. 1.School of Metallurgical EngineeringXi’an University of Architecture and TechnologyXi’anPeople’s Republic of China
  2. 2.College of Materials Science and EngineeringChongqing UniversityChongqingPeople’s Republic of China
  3. 3.State Key Laboratory of Power Transmission Equipment & System Security and New TechnologyChongqing UniversityChongqingPeople’s Republic of China

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