中国电力2013，Vol.46Issue(2)：40-45,6.
利用电厂粉煤灰酸法生产氧化铝
Discussion of Alumina Acid Production from Fly Ash of Power Plants
李瑞冰 1张廷安 1李景江 1李鑫 1吴楠1
作者信息
摘要
Abstract
Coal fly ash from power plants contains large amounts of alumina. When it is used to produce alumina, it can not only overcome the shortage of alumina resources, but also avoid environmental contamination. The methods and the status quo of the research on alumna production from fly ash are reviewed and the characteristics, trends and feasibility of these methods are analyzed. Some recommendations are given for improving the product quality, reducing the investment and lowering the cost of the alumina production. One method of acid extracting alumina from fly ash (GP method) is introduced, which consists of three steps of leaching with sulfurie acid, removing impurities with hydrochloric acid and ammonia conversion. With this method, the reaction temperature, the energy consumption and the production cost are low and there are not new solid emissions generated from the closed cycle process. The issues on the alumina crystal size, acid-resistant materials as well as iron and other impurities removal need to be further studied.关键词
粉煤灰/氧化铝/酸法/碱法Key words
coal fly ash/alumina/acid method/soda method分类
信息技术与安全科学引用本文复制引用
李瑞冰,张廷安,李景江,李鑫,吴楠..利用电厂粉煤灰酸法生产氧化铝[J].中国电力,2013,46(2):40-45,6.
