Study on the Influence of Different Molten Salt Systems on the Composition of Resin Molten Salt Oxidation Products

Wang, Xuepeng; Chen, Suwen; Liu, Feichi; Zhang, Yuhao; Zheng, Yanghai; Cao, Haizhou; Guo, Shengrong; Dong, Haiqian; Dong, Zhiqiang; Yan, Yongde

doi:10.3390/inorganics14080199

This is an early access version, the complete PDF, HTML, and XML versions will be available soon.

Open AccessArticle

Study on the Influence of Different Molten Salt Systems on the Composition of Resin Molten Salt Oxidation Products

by

Xuepeng Wang

¹

,

Suwen Chen

^1,2,

Feichi Liu

¹,

Yuhao Zhang

¹,

Yanghai Zheng

^1,*

,

Haizhou Cao

^1,3,

Shengrong Guo

^1,*

,

Haiqian Dong

¹

,

Zhiqiang Dong

¹ and

Yongde Yan

⁴

¹

College of Materials and Energy Engineering, Lishui University, Lishui 323000, China

²

Lishui Huanke Environmental Protection Consulting Co., Ltd., Lishui 323000, China

³

Zhejiang Suichang Huijin Nonferrous Metals Co., Ltd., Lishui 323000, China

⁴

Yantai Research Institute, Harbin Engineering University, Yantai 264006, China

^*

Authors to whom correspondence should be addressed.

Inorganics 2026, 14(8), 199; https://doi.org/10.3390/inorganics14080199

Submission received: 13 June 2026 / Revised: 19 July 2026 / Accepted: 24 July 2026 / Published: 26 July 2026

(This article belongs to the Special Issue Metal Carbonates—from Amorphous Carbonates to Carbonate Complexes)

Download Versions Notes

Abstract

A high-efficiency molten salt oxidation strategy for hazardous spent ion-exchange resins is much needed. The optimized ternary carbonate system (Li₂CO₃-K₂CO₃-Na₂CO₃, 44:26:30 wt%) with a 1:1 salt-to-resin ratio achieves oxidation efficiencies above 98% for single resins and 99% for mixed resins at 800–850 °C for 2 h. A pre-pyrolysis at 550 °C for 0.5 h traps volatile pollutants released at 300–550 °C. An excess air coefficient of 1.25 accelerates the breakdown of sulfur-carbon bonds, eliminating toxic hydrocarbons and CO. This work provides reliable parameters for industrial treatment of such hazardous waste.

Keywords: carbonate; molten salt oxidation; waste treatment; spent resins

Share and Cite

MDPI and ACS Style

Wang, X.; Chen, S.; Liu, F.; Zhang, Y.; Zheng, Y.; Cao, H.; Guo, S.; Dong, H.; Dong, Z.; Yan, Y. Study on the Influence of Different Molten Salt Systems on the Composition of Resin Molten Salt Oxidation Products. Inorganics 2026, 14, 199. https://doi.org/10.3390/inorganics14080199

AMA Style

Wang X, Chen S, Liu F, Zhang Y, Zheng Y, Cao H, Guo S, Dong H, Dong Z, Yan Y. Study on the Influence of Different Molten Salt Systems on the Composition of Resin Molten Salt Oxidation Products. Inorganics. 2026; 14(8):199. https://doi.org/10.3390/inorganics14080199

Chicago/Turabian Style

Wang, Xuepeng, Suwen Chen, Feichi Liu, Yuhao Zhang, Yanghai Zheng, Haizhou Cao, Shengrong Guo, Haiqian Dong, Zhiqiang Dong, and Yongde Yan. 2026. "Study on the Influence of Different Molten Salt Systems on the Composition of Resin Molten Salt Oxidation Products" Inorganics 14, no. 8: 199. https://doi.org/10.3390/inorganics14080199

APA Style

Wang, X., Chen, S., Liu, F., Zhang, Y., Zheng, Y., Cao, H., Guo, S., Dong, H., Dong, Z., & Yan, Y. (2026). Study on the Influence of Different Molten Salt Systems on the Composition of Resin Molten Salt Oxidation Products. Inorganics, 14(8), 199. https://doi.org/10.3390/inorganics14080199

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

Article Menu

Study on the Influence of Different Molten Salt Systems on the Composition of Resin Molten Salt Oxidation Products

Abstract

Share and Cite

Article Metrics

Article Access Statistics

Further Information

Guidelines

MDPI Initiatives

Follow MDPI