ratory kiln calcined bauxite powder price Al2O3 80% 83% 85% 90%
Bauxite
Item Number:Al2O3 Fe2O3 TiO2 CaO+MgO K2O+Na2O Density (g/cm3) L.O.I
LMME-AL90 ≥89.5 ≤1.5 ≤4.0 ≤0.35 ≤0.35 ≥3.25 ≤2.5
LMME-AL88A ≥87.5 ≤1.6 ≤4.0 ≤0.4 ≤0.4 ≥3.20 ≤3.0
LMME-AL88B ≥87.5 ≤2.0 ≤4.0 ≤0.4 ≤0.4 ≥3.25 ≤3.0
LMME-AL85A ≥85 ≤1.8 ≤4.0 ≤0.4 ≤0.4 ≥3.15 ≤3.0
LMME-AL85B ≥85 ≤2.0 ≤4.0 ≤0.4 ≤0.4 ≥3.10 ≤3.0
LMME-AL83 ≥83 ≤2.0 ≤4.0 ≤0.4 ≤0.4 ≥3.15 ≤3.0
- Bauxite (aluminous soil; Bauxite) is also called the alumina or bauxite, main ingredients are alumina,
hydrated alumina containing impurities, is an earthy mineral. White or gray, brown and yellow or light red by iron.
From 4 to 3.9 g/cm3 density, hardness, 1 ~ 3 is not transparent, very brittle. Very difficult to melt.
Insoluble in water, soluble in sulfuric acid, sodium hydroxide solution. Mainly used for aluminium, refractory material.
It can be used in aluminium industry ,precision casting, refractory materials and refractory cement. 2.Manufacturing Process:
Raw material fed into the calciner at high temperature calcination,part drying may also be part of the way. Calcined material through the jaw crusher or hammer crusher, then sent Rulei Meng mill. After crushing the material into the mill production system, the entire milling, grading and other operations processes and procedures are completed within the mill automation, operating crew should pay close attention to the cabinet meter data. Qualified bauxite powder released by the discharge valve, packaging products. 3.Usage:
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.
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