Cementing material based on electrolytic manganese residues and preparation method

Through multi-stage heating and calcination, electrolytic manganese slag is prepared to prepare structurally stable gelling materials, which solves the problems of harmless and resource utilization of electrolytic manganese slag, and realizes efficient treatment and resource application of electrolytic manganese slag.

CN119954418AActive Publication Date: 2025-05-09GUIZHOU DONGFANG ENGINEERING INFORMATION TECHNOLOGY CONSULTING CO LTD
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Patent Information

Application Number
CN202510128977.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-05
Publication Date
2025-05-09
Estimated Expiration
2045-02-05

AI Technical Summary

Technical Problem

The existing technology is difficult to effectively treat electrolytic manganese slag, which leads to difficulties in harmless treatment and resource utilization, large water consumption and high cost, making it difficult to achieve large-scale application.

Method used

The electrolytic manganese slag is treated by multi-stage heating and calcination, including removing free water at low temperature, desulfurization and ammonia solidification, and curing heavy metal ions at high temperature to prepare structurally stable gelling materials.

Benefits of technology

The harmless treatment and resource utilization of electrolytic manganese slag have been achieved, the treatment cost is reduced, and the utilization rate of electrolytic manganese slag has been improved. The prepared gelling materials are suitable for road construction and other fields.

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Abstract

The invention provides a cementing material based on electrolytic manganese residues and a preparation method thereof.The preparation method comprises the steps that original electrolytic manganese residues are heated within a first preset temperature range, and a first electrolytic manganese residue material is obtained; heating the first electrolytic manganese residue material within a second preset temperature range so as to perform desulfurization and ammonia fixation treatment on the first electrolytic manganese residue material, and obtaining a second electrolytic manganese residue material; the second electrolytic manganese residue material is heated within a third preset temperature range, so that heavy metal ions in the second electrolytic manganese residue material are solidified, and a target mineral phase with a stable structure is obtained; the second preset temperature range is larger than the first preset temperature range and smaller than the third preset temperature range; and cooling the target mineral phase to room temperature and grinding to obtain the cementing material. According to the scheme, through multi-section type heating, harmless treatment of the electrolytic manganese residues is achieved; and a cementing material is prepared according to a product obtained after heating treatment, so that maximum utilization of the electrolytic manganese residues is achieved.
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Citation Information

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