Research progress of CO<sub>2</sub> mineralization using carbide slag

LI Jing; JIA Xiaoxiao; LIU Jiaxin; GUO Hong; LU Su

doi:10.13205/j.hjgc.202605022

Volume 44 Issue 5

May 2026

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LI Jing, JIA Xiaoxiao, LIU Jiaxin, GUO Hong, LU Su. Research progress of CO2 mineralization using carbide slag[J]. ENVIRONMENTAL ENGINEERING , 2026, 44(5): 215-224. doi: 10.13205/j.hjgc.202605022

Citation:

LI Jing, JIA Xiaoxiao, LIU Jiaxin, GUO Hong, LU Su. Research progress of CO₂ mineralization using carbide slag[J]. ENVIRONMENTAL ENGINEERING , 2026, 44(5): 215-224. doi: 10.13205/j.hjgc.202605022

LI Jing, JIA Xiaoxiao, LIU Jiaxin, GUO Hong, LU Su. Research progress of CO2 mineralization using carbide slag[J]. ENVIRONMENTAL ENGINEERING , 2026, 44(5): 215-224. doi: 10.13205/j.hjgc.202605022

Citation:

LI Jing, JIA Xiaoxiao, LIU Jiaxin, GUO Hong, LU Su. Research progress of CO₂ mineralization using carbide slag[J]. ENVIRONMENTAL ENGINEERING , 2026, 44(5): 215-224. doi: 10.13205/j.hjgc.202605022

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Research progress of CO₂ mineralization using carbide slag

doi: 10.13205/j.hjgc.202605022

LI Jing¹,
JIA Xiaoxiao¹,
LIU Jiaxin²,
GUO Hong¹,
LU Su^{2
,
,}

1. Xinjiang College of Science & Technology, Korla 841000, China;
2. College of Water Conservancy & Hydropower Engineering, Hohai University, Nanjing 210098, China

Received Date: 2025-08-18
Available Online: 2026-06-06

Abstract

Abstract

As an alkaline industrial solid waste produced in the process of acetylene production from the chlor-alkali industry， the long-term storage of carbide slag poses serious ecological and environmental risks， which urgently require efficient disposal. In this paper， the technical pathways and application progress of carbon dioxide fixation by carbide slag mineralization are systematically reviewed. Based on the high-active phase characteristics dominated by calcium hydroxide， the reaction mechanisms of gas-solid/liquid-solid direct carbonization and ammonium salt cyclic leaching-carbonation indirect carbonization are elaborated. The mineralization process has been optimized through process parameter regulation， amino acid modification， and multi-solid waste coordination， which significantly improves reaction efficiency and product performance and enables the controllable synthesis of high-value-added calcium carbonate products. The analysis of the environmental and economic benefits of the mineralized products confirms that the technology exhibits good economic feasibility while achieving CO₂ fixation. The CO₂ mineralization process of carbide slag synchronously achieves the dual goal of solid waste resource utilization and carbon emission reduction. The derived lightweight fillers and low-carbon cementitious materials possess both environmental and economic potential， which provides theoretical and application support for the “waste-to-waste” carbon emission reduction technology system.
- carbide slag,
- CO₂ mineralization,
- carbonization technology,
- calcium carbonate,
- multi-solid waste coordinated treatment

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References(68)

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