铝矾土按照原料类型分类：

       1、生矾土：即矾土原矿石(天然沉积岩类)，生料的原料是高岭石和水铝石。

       2、熟矾土，将生矾土经高温煅烧后(12001700)称为熟矾土，熟料的原料为莫来石。

       铝矾土按照煅烧窑炉不同划分为：

       1、竖炉熟矾土；2、转炉熟矾土；3、倒焰窑矾土。

       熟矾土按不同用途划分为：

       1、耐火级矾土；2、研磨级矾土；3、电焊级矾土。

英文翻译

Chinese name: bauxite
English name: bauxitic rock
Bauxite is also called the alumina or bauxite, main ingredients are aluminum oxide, hydrate alumina containing impurities, is a kind of soil minerals, white or gray, brown yellow or light red by iron.2.4 2.5 g/cm3 density, hardness, 1 3 is not transparent, very brittle and very difficult to melt, insoluble in water, soluble in sulfuric acid, sodium hydroxide solution, it is mainly used for aluminium, refractory material.
Bauxite is usually referred to in the refractory industry refers to after calcining Al2O3 > = 48, and contain low Fe2O3 high bauxite clinker.Clinker to pale yellow and dark gray, it is mainly used for high aluminum refractory material, can also be used to make the fused corundum.High bauxite clinker is according to the content of AL2O3 and Fe2O3, TiO2, CaO + MgO style, K2O + Na2O and other impurity content and clinker indicators such as volume density and bibulous to classification.
bauxite classification
Type bauxite in accordance with the raw material classification:
raw bauxite, alumina raw ore (natural sedimentary rock class), raw material is kaolinite and diaspore.
A longitudinal calcined bauxite, the raw bauxite after high temperature calcination (1200 1700 ) is called the calcined bauxite, clinker raw materials for the mullite.
Bauxite in accordance with the different calcining kiln is divided into:
shaft furnace calcined bauxite;A longitudinal converter calcined bauxite;ƒ down-draft kiln bauxite.
Calcined bauxite according to different purposes are divided into:
alumina refractory level;A longitudinal grinding grade bauxite;ƒ welding grade bauxite.

bauxite USES 1, aluminium industry, used for national defense, aerospace, automotive, electrical, chemical industry, daily necessities, etc.
2, precision casting, bauxite clinker made after mold precision casting processed into fine powder, used in military industry, aerospace, communications, instrumentation, machinery and medical equipment department.
3, used for refractory products - high bauxite clinker as high as 1780 , refractoriness strong chemical stability, good physical properties.
4, aluminum silicate refractory fiber with light weight, high temperature resistance, good thermal stability, low thermal conductivity, heat capacity is small and the advantages of resistance to mechanical shock.Used in iron and steel, nonferrous metallurgy, electronics, petroleum, chemical, aerospace, atomic energy, defense and other industries.It is the high alumina clinker in the melting temperature of about 2000 2200 high temperature electric arc furnace, via high pressure of high temperature melting, high-speed air or steam injection, cooling, became a white cotton - silicate aluminum refractory fiber.It can be pressed into fiber blanket, board or woven cloth instead of smelting, chemical industry, glass and other industrial furnace lining brick.Firefighters available refractory fiber cloth to make clothes.
5, magnesia and bauxite clinker as raw material, adding proper binder, used for pouring ladle whole ladle lining has particularly good effects.
6, manufacture alumina cement, abrasive materials, ceramic industry and chemical industry can be of aluminum compounds.