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2024 | OriginalPaper | Buchkapitel

Study on Resource Utilization of Sintering Semi-Dry Desulphurization Ash

verfasst von : Zhang Yang, Jiao Lina

Erschienen in: Materials Processing Fundamentals 2024

Verlag: Springer Nature Switzerland

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Abstract

The desulfurization ash contains high content of CaSO₃, which makes it difficult for its resource utilization. In the present study, the physical–chemical performance of the sintering flue gas desulfurization ash from a typical steel corporation was analyzed. On this basis, the H₂O₂ oxidation modification, MnSO₄ catalytic modification and air oxidation test with different process conditions of it were studied, and the best process conditions of desulfurization ash modification were analyzed. Considering the test results and the industrial practice, the optimal process conditions were thought as: hydrogen peroxide was oxidant, pH value was 5.5, the molar ratio of H₂O₂ and CaSO₃ was 1:1, the slurry solid content was 10%, and the reaction time was 1.5 h, and under these conditions, the CaSO₃ conversion rate reached 98%. However, MnSO₄ was not suggested to be added for oxidation of sintering semi-dry desulphurization ash.

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Titel: Study on Resource Utilization of Sintering Semi-Dry Desulphurization Ash
verfasst von: Zhang Yang
Jiao Lina
Verlag: Springer Nature Switzerland
Buch: Materials Processing Fundamentals 2024
Print ISBN: 978-3-031-50183-8

Electronic ISBN: 978-3-031-50184-5

Copyright-Jahr: 2024
DOI: https://doi.org/10.1007/978-3-031-50184-5_28

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