Research Progress on Resource Utilization of Fly Ash Acid Leaching Residue after Aluminum Extraction
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摘要:
粉煤灰酸浸提铝渣的主要成分为二氧化硅，可作为许多硅基材料的生产原料。本文以粉煤灰酸浸提铝渣为原料，综述了制备白炭黑、沸石分子筛、介孔材料、陶瓷材料和橡胶填料等产品的研究进展，并对粉煤灰酸浸提铝渣资源化利用的未来发展进行了展望，提出了向高附加值化、低成本化和绿色环保化的发展方向。
Abstract:In the process of extracting alumina from fly ash by acid method, the acid leaching residue is the main solid waste. The main component of acid leaching residue is silicon dioxide, which can be used as a high-quality silicon source for many silicon-based materials. Using acid leaching residue as raw materials, white carbon black, molecular sieves, mesoporous materials, ceramic materials, rubber fillers and other products can be prepared. The research progress on resource utilization of acid leaching residues is reviewed, its future development is prospected, and the development direction towards high added value, low cost and green environmental protection is proposed.
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Key words:
- Fly ash /
- Acid leaching residue /
- Resource utilization
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