Extraction Technique of Aluminum Oxide Has Realized Industrialization

At present, the extraction technique of aluminum oxide from high-alumina coal ash has realized industrialization. Promoting the healthy development of the extraction technique of alumina industry from coal ash can help us construct high alumina coal recycling industry layout which has important strategic significance in China.

Coal is the main fossil fuel in our country, which contains a large amount of inorganic elements that are usually treated as ash or harmful substances. And through scientific and technological innovation, it can help to make inorganic component in coal converted into all kinds of useful products, realizing the transformation of coal from the fuel to the base material.

Using high-alumina coal ash to produce alumina is of great significance for the healthy development and environmental protection of aluminum industry in China. The exploration and practice for environmental protection and comprehensive utilization of resources industry for many years, increasingly strengthen people’s suffering consciousness for the traditional industry. From the point of view of environmental protection and resources strategic reserves, experts suggest that we should carry out protective or restrictive mining for limited precious bauxite resources. The source of alumina raw materials should be given priority to imported aluminum ore and high-alumina coal ash.

"Because of the lack of bauxite in China, the vegetation damage caused by predatory exploitation is difficult to restore. On the other hand, part of the coal resources in Junggar Basin, alumina in the coal ash from the burning of potential resources is far more than our country's proven reserves of bauxite." Using high-alumina coal ash to produce alumina not only promote healthy development of aluminum industry but also help realize energy saving and emission reduction of papermaking and building materials industry. Some relevant departments should increase the supporting intensity of tax incentives and demonstration projects, promote the healthy development of the extraction technique of alumina from coal ash, and help us construct high alumina coal recycling industry layout which has important strategic significance in China.