My country is a major producer and exporter of refractory materials, with refractory material output accounting for 65% of the global total. Bauxite is one of the main raw materials for the production of refractory materials. Bauxite in the refractory industry usually refers to bauxite ore with a calcined Al2O3 content of ≥48% and a low Fe2O3 content. As an important raw material for refractory materials, bauxite occupies an irreplaceable position.
The main difference between raw bauxite and cooked bauxite is different mineral types: raw material is kaolinite and diaspore, and clinker is mullite. Bauxite clinker, referred to as high alumina material, various high alumina bricks made from its clinker are refractory or anti-corrosion materials widely used in the metallurgical industry and other industries, especially used on the top of electric furnaces, blast furnaces and hot blast furnaces. The refractory effect is very significant, and its performance is better than ordinary clay refractory bricks. Bauxite: an aluminum oxide ore with the chemical formula Al2O3.H2O, Al2O3.3H2O and a small amount of FE2O3.SiO2. It is often yellow to red because it contains iron oxide, so it is also called "iron vanadium soil". It is the main raw material for aluminum smelting. Bauxite is divided into metallurgical grade, chemical grade, refractory grade, grinding grade, cement grade, etc. according to its use.
Used to make refractory materials, this kind of bauxite is called refractory grade alumina.
Alumina clinker with appropriate proportions of AL2O3/Fe2O3 and AL2O3/SiO2 is used to melt alumina·/Fe2O3 and AL2O3/SiO2.
Bauxite clinker can be processed into aggregates and used as refractory materials such as steel and furnace charge. 5. It can be processed into fine powder for use in casting, refractory coatings and other industries. It can also be used for the preparation of water purification agent polyaluminum ferric chloride.
