粉煤灰提取氧化铝技术研究进展
发布时间：2018-09-08 20:02
【摘要】：粉煤灰的高附加值资源化关系经济建设和环境保护两大重要问题。粉煤灰是工业固体废料但也是一种重要的潜在铝资源,从粉煤灰中提取氧化铝备受瞩目。重点分析总结了粉煤灰中氧化铝提取技术进展,根据处理手段的不同,氧化铝提取技术分为烧结法和直接湿法浸出两大类。石灰石烧结法、碱石灰烧结法和纯碱烧结法是烧结法最主要的三种工艺,相关研究众多,但大多仅限于实验室;湿法酸浸潜力巨大,已有盐酸浸出法成功应用于工业,但浸出过程的研究亟待充实和深入;湿法碱浸工艺仅有很少量的实验室研究。因此,湿法酸浸工艺是未来研究的一个重要方向。
[Abstract]:The utilization of high added value of fly ash relates to two important issues: economic construction and environmental protection. Fly ash is a kind of industrial solid waste but also an important potential aluminum resource. The progress of alumina extraction technology in fly ash is analyzed and summarized emphatically. According to the different treatment methods, alumina extraction technology can be divided into two categories: sinter method and direct wet leaching method. Limestone sintering, alkali lime sintering and soda alkali sintering are the three most important sintering processes, and the related studies are numerous, but mostly confined to laboratory. The wet acid leaching method has great potential and has been successfully applied in industry by hydrochloric acid leaching. However, the study of leaching process needs to be enriched and deepened, and only a small amount of laboratory research is carried out in wet alkaline leaching process. Therefore, wet acid leaching process is an important research direction in the future.
【作者单位】： 省部共建复杂有色金属资源清洁利用国家重点实验室;昆明理工大学国土资源工程学院;
【基金】：国家自然科学基金(51264020)
【分类号】：TQ133.1;TQ536.4
本文编号：2231551
[Abstract]:The utilization of high added value of fly ash relates to two important issues: economic construction and environmental protection. Fly ash is a kind of industrial solid waste but also an important potential aluminum resource. The progress of alumina extraction technology in fly ash is analyzed and summarized emphatically. According to the different treatment methods, alumina extraction technology can be divided into two categories: sinter method and direct wet leaching method. Limestone sintering, alkali lime sintering and soda alkali sintering are the three most important sintering processes, and the related studies are numerous, but mostly confined to laboratory. The wet acid leaching method has great potential and has been successfully applied in industry by hydrochloric acid leaching. However, the study of leaching process needs to be enriched and deepened, and only a small amount of laboratory research is carried out in wet alkaline leaching process. Therefore, wet acid leaching process is an important research direction in the future.
【作者单位】： 省部共建复杂有色金属资源清洁利用国家重点实验室;昆明理工大学国土资源工程学院;
【基金】：国家自然科学基金(51264020)
【分类号】：TQ133.1;TQ536.4
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