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Manganese removal is an essential step for implementing MMO anodes in zinc electrowinning. We worked on the manganese removal process using an SO2/air gas mixture. Our results indicate that copper as a catalyst has a detrimental effect on manganese removal at high concentrations, and MeOH suppresses the manganese elimination and reduces the solution potential from 750 to 703 mV.

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Effect of Copper on Oxidative Precipitation Reaction by Using SO2/Air Gas Mixture

  • 会议论文

  • 发表日期：

    2025年

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  • Masoomeh Askarian,
  • Fariba Mousavi,
  • Georges Houlachi,
  • Houshang Alamdari

摘要

Manganese removal is an essential step for implementing MMO anodes in zinc electrowinning. We worked on the manganese removal process using an SO2/air gas mixture. Our results indicate that copper as a catalyst has a detrimental effect on manganese removal at high concentrations, and MeOH suppresses the manganese elimination and reduces the solution potential from 750 to 703 mV.