Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Coal-based solid waste separation-smelting-material resource comprehensive utilization process method and application thereof
The invention provides a coal-based solid waste separation-smelting-material resource comprehensive utilization process method and application thereof, and belongs to the technical field of coal-based solid waste comprehensive utilization. The method comprises the following steps: carrying out flotation separation on the coal-based solid waste to obtain residual carbon and tail ash; drying the tail ash, and carrying out alkali fusion to obtain an active material; then leaching and filtering the active material to obtain a leaching solution and leaching residues, and adsorbing and enriching Li and Ga in the leaching solution; the adsorbed leachate is subjected to silica-alumina ratio adjustment, hydrothermal crystallization, filtration and high-temperature calcination to obtain a mesoporous molecular sieve; subjecting the filtered silicon-containing alkali liquor to carbonation and calcination so as to obtain white carbon black; and mixing the tail ash with the leaching residues, and carrying out moisture adjustment and maintenance processes to obtain a geopolymer product. According to the method, waste residues and waste water are not generated in the implementation process, the Li and Ga enriched product, the geopolymer product, the mesoporous molecular sieve and the white carbon black are finally obtained, full and comprehensive utilization of the coal-based solid waste is achieved, the environmental benefits are good, and the significance is great.
本发明提供了一种煤基固废选‑冶‑材资源化综合利用工艺方法及其应用，属于煤基固废综合利用技术领域。本发明中先将煤基固废浮选分离得到残碳与尾灰；然后将尾灰干燥、碱熔变为活性物料；接着将活性物料浸出过滤得到浸出液和浸出渣，将浸出液中的Li、Ga吸附富集；吸附后的浸出液通过调节硅铝比、水热晶化、过滤、高温煅烧得到介孔分子筛；过滤后的含硅碱液通过碳分、煅烧得到白炭黑；尾灰与浸出渣混合，通过水分调节、养护过程，得到地质聚合物产品。本发明中的方法在实施过程中不产生废渣、废水，最终得到了Li、Ga富集产品、地质聚合物产品、介孔分子筛和白炭黑四种产物，实现了煤基固废的充分、综合利用，且环境效益也很好，意义重大。
Coal-based solid waste separation-smelting-material resource comprehensive utilization process method and application thereof
The invention provides a coal-based solid waste separation-smelting-material resource comprehensive utilization process method and application thereof, and belongs to the technical field of coal-based solid waste comprehensive utilization. The method comprises the following steps: carrying out flotation separation on the coal-based solid waste to obtain residual carbon and tail ash; drying the tail ash, and carrying out alkali fusion to obtain an active material; then leaching and filtering the active material to obtain a leaching solution and leaching residues, and adsorbing and enriching Li and Ga in the leaching solution; the adsorbed leachate is subjected to silica-alumina ratio adjustment, hydrothermal crystallization, filtration and high-temperature calcination to obtain a mesoporous molecular sieve; subjecting the filtered silicon-containing alkali liquor to carbonation and calcination so as to obtain white carbon black; and mixing the tail ash with the leaching residues, and carrying out moisture adjustment and maintenance processes to obtain a geopolymer product. According to the method, waste residues and waste water are not generated in the implementation process, the Li and Ga enriched product, the geopolymer product, the mesoporous molecular sieve and the white carbon black are finally obtained, full and comprehensive utilization of the coal-based solid waste is achieved, the environmental benefits are good, and the significance is great.
本发明提供了一种煤基固废选‑冶‑材资源化综合利用工艺方法及其应用，属于煤基固废综合利用技术领域。本发明中先将煤基固废浮选分离得到残碳与尾灰；然后将尾灰干燥、碱熔变为活性物料；接着将活性物料浸出过滤得到浸出液和浸出渣，将浸出液中的Li、Ga吸附富集；吸附后的浸出液通过调节硅铝比、水热晶化、过滤、高温煅烧得到介孔分子筛；过滤后的含硅碱液通过碳分、煅烧得到白炭黑；尾灰与浸出渣混合，通过水分调节、养护过程，得到地质聚合物产品。本发明中的方法在实施过程中不产生废渣、废水，最终得到了Li、Ga富集产品、地质聚合物产品、介孔分子筛和白炭黑四种产物，实现了煤基固废的充分、综合利用，且环境效益也很好，意义重大。
Coal-based solid waste separation-smelting-material resource comprehensive utilization process method and application thereof
一种煤基固废选-冶-材资源化综合利用工艺方法及其应用
TIAN QUANZHI (Autor:in) / ZHANG HAIJUN (Autor:in) / PAN YINHAI (Autor:in) / YAO SHUO (Autor:in) / WANG HAINAN (Autor:in) / ZHAO ZHENYANG (Autor:in) / ITO (Autor:in)
29.09.2023
Patent
Elektronische Ressource
Chinesisch
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