Work

Thermodynamic Analysis of Ca-Mg-Al-based Refractory Resistance to Na2CO3 Corrosion

Year: 2025

Type: article

Abstract: Papermaking black liquor contains Na2CO3, which can corrode refractory materials and cause economic losses. It is considered to introduce CaO and MgO alkaline oxides into Al2O3 to prepare calcium magnesium aluminum composite oxides as a substitute for Al2O3 as corrosion shell materials. Using the FactSage material balance module, the optimal ratio of CaO-MgO-Al2O3 was calculated, and it was found that the Gibbs free energy of C2M2A14 reacting with Na2CO3 at 800-1200 ℃ was positive. C2M2A14 was selected as the optimal ratio of calcium-magnesium aluminum composite oxide to resist Na2CO3.

Source: Annals of Environmental Science and Toxicology

DOI: 10.17352/aest.000087

Authors: Quanjun Zheng, Qiushi Zhang, Changqing Dong, Xiaoying Hu, Huiyu WU

Language: English

Topic: Metallurgical Processes and Thermodynamics

Subfield: Mechanical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: diamond

OpenAlex ID: W4411288676

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Cites: 8

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Related to: 10