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Bauxite stone is a type of ore that has large quantities of aluminum. This rock is one of the sedimentary rocks. Bauxite stone is the source of alumina and aluminum in the world. It is named after the village of Les Boxing, France, because it was first discovered in the village.
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Bauxite stone has several compounds, but their most important compounds are aluminum oxides, inorganic quartz, hematite, magnetite, siderite and small amounts of anatase.
Color variation and soil luminosity:This type of mineral can be found in three different colors: white, gray and brown. This mineral has a lot of luminosity.
Pisolitic structure: The pizolitic structure of the bauxite mineral is a single nucleus surrounded by concentric layers.
Low specific gravity: Bauxite minerals do not have a high weight and have their own low weight. It weighs about 2 to 5.2 N/m2.
Low hardness:The hardness of the mineral bauxite is lower than other minerals. This hardness is on a scale of 1 to 3 mouse.
About 90% of the bauxite that is extracted is spent on supplying aluminum. This aluminum is made under bayer operation. Aluminum manufacturing has different stages that we will examine together.
Since bauxite has very low hardness, it is therefore known as a very good pulp lubricant in the steelmaking industry. Bauxite is a very suitable and inexpensive alternative to fluorine as a lubricant.
Using sintring can be obtained from bauxite stone a very good abrasive material for sandblaste processes. It is produced by grinding and powdering bauxite and agglomerate it at high temperatures. These agglomerates are mostly used to reduce wear in sandblasting parts.
Refractory cements are obtained by combining lime with equal amounts of bauxite. Alumina and silica form molyte, which increases the melting point.
Bauxite reserves in Iran are much more limited than in the world and many bauxite mines in Iran do not have a suitable alloy for exploitation. Currently, the need for Iranian bauxite is supplied through jajarum bauxite mine, the country's largest mine.
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