Efficient fixation of Co2+ and organic sulfur from cation exchange resins into CaO enhanced molten Li2CO3-Na2CO3-K2CO3 system

Xin Liu,Yong-De Yan,Yun Xue,Yang-Hai Zheng,Wen-Da Xu,Yue-Lin Wang,Qing-Guo Zhang,Fu-Qiu Ma,Kai Zhu,Jing-Ping Wang

Separation and Purification Technology（2023）

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摘要

•Co2+ in Co-CERs could catalyze the oxidation of the thermally stable structure SC.•CaO enhanced molten Li2CO3-Na2CO3-K2CO3 showed good capacity to convert Co2+ and organic S into oxide and sulfate.•CaO was quite effective to facilitate the sulfation process of S and Co2+.•97.36% of Co and 87.79% of S in Co-CERs were efficiently remained in the CaO enhanced Li2CO3-Na2CO3-K2CO3 system.

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关键词

Molten salt oxidation,Ternary molten carbonate,CaO,Co2+ catalysis,Sulfur fixation,Organic contaminant treatment

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