Method for producing aluminum hydroxide from aluminum ash

The invention relates to a method for producing aluminum hydroxide from aluminum ash, which comprises the following steps of: reacting the aluminum ash with alkali liquor, and introducing carbon dioxide to generate the aluminum hydroxide. According to the novel aluminum ash utilization method, a series of procedures such as acid leaching and alkaline leaching of the aluminum ash in the prior art are omitted, the subsequent treatment process is avoided, the cost is saved, the method is suitable for the aluminum ash of various composition systems, and the aluminum ash can have a good treatment effect. 本发明涉及一种铝灰渣生产氢氧化铝的方法，包括以下步骤：铝灰渣与碱液反应后，通入二氧化碳，即可生成氢氧化铝。本发明提供了一种新型铝灰渣利用方法，免除了现有技术中对于铝灰渣进行酸浸、碱浸等一系列工序，避免了后续处理过程，节约了成本，且适合于各种组成体系的铝灰渣，使其均能够具有良好的处理效果。