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The classification of bauxite


Bauxite can be classified as diaspore, boehmite and gibbsite from a perspective of chemical structure. It can be used in different industries after classified by the difference on physical and chemical features. There are mainly four categories:

1.Metallurgy grade bauxite: Normally refer to the bauxite mines that are used for refining metal aluminum or smelting aluminum oxide, with a alumina silica ratio over 2.6;
2.Grinding grade bauxite: Maily used for producing high alumina cement, abrasives or abrasive tools;
3.Refractory grade bauxite: Used to produce all kinds of shaped and unshaped refractory material;
4.Electric welding grade bauxite: Usually used for producing electric welding rod.

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