各种含量铝矾土
英文名称：bauxitic rock
定义：
一种富含铝质矿物的化学或生物化学岩。主要矿物成分为一水硬铝石、一水软铝石、三水铝石。主要由铝硅酸盐类矿物受强热化学风化，带出溶解的氧化铝，搬运到海湖盆地沉积而成。
铝矾土（aluminous soil；bauxite）又称矾土或铝土矿，主要成分是氧化铝，系含有杂质的水合氧化铝，是一种土状矿物。白色或灰白色，因含铁而呈褐黄或浅红色。密度3.9～4g/cm3，硬度1～3，不透明，质脆。极难熔化。不溶于水，能溶于硫酸、氢氧化钠溶液。主要用于炼铝，制耐火材料。
铝矾土产地分布：
目前，已知赋存铝土矿的国家有49个。中国有丰富的铝矾土资源，约37亿吨，居世界前列，与几内亚、澳大利亚、巴西同属世界铝矾土资源大国。但生产供耐火材料用的高铝矾土的国家只有圭亚那和中国，其他国家的铝矾土含铁量高，多用于炼铝和研磨材料。
中国铝土矿资源比较丰富，在全国18个省、自治区、直辖市已查明铝土矿产地205处，其中大型产地72处（不包括台湾）。主要分布在山西、山东、河北、河南、贵州、四川、广西、辽宁、湖南等地。
产品用途：
⑴炼铝工业。用于国防、航空、汽车、电器、化工、日常生活用品等。
⑵精密铸造。矾土熟料加工成细粉做成铸模后精铸。用于军工、航天、通讯、仪表、机械及医疗器械部门。
⑶用于耐火制品。高铝矾土熟料耐火度高达1780℃，化学稳定性强、物理性能良好。
⑷硅酸铝耐火纤维。具有重量轻，耐高温，热稳定性好，导热率低，热容小和耐机械震动等优点。用于钢铁、有色冶金、电子、石油、化工、宇航、原子能、国防等多种工业。它是把高铝熟料放进融化温度约为2000～2200℃的高温电弧炉中，经高温熔化、高压高速空气或蒸汽喷吹、冷却，就成了洁白的“棉花”——硅酸铝耐火纤维。它可压成纤维毯、板或织成布代替冶炼、化工、玻璃等工业高温窑炉内衬的耐火砖。消防人员可用耐火纤维布做成衣服。
⑸以镁砂和矾土熟料为原料，加入适当结合剂，用于浇注盛钢桶整体桶衬效果甚佳。
⑹制造矾土水泥，研磨材料，陶瓷工业以及化学工业可制铝的各种化合物。
铝矾土理化指标：
等级
化学成分/%
耐火度
体积密度
Al2O3
CaO
Fe2O3
特级
>85
<0.6
<2.0
>1790
>3.0
一级
>80
<0.6
<3.0
>1790
>2.8
二级甲
70~80
<0.8
<3.0
>1790
>2.65
二级乙
60~70
<0.8
<3.0
>1770
>2.55
三级
50~60
<0.8
<2.5
>1770
>2.45
铝矾土产品的区别：
耐火材料行业所称的铝矾土通常是指煅烧后Al2O3>=48%、而含Fe2O3较低的铝土矿，高铝矾土熟料是经过煅烧的铝矾土矿。熟料为灰白浅黄及深灰色，它主要用于高铝质耐火材料，也可用来制作电熔棕刚玉。高铝矾土熟料是按AL2O3含量及Fe2O3、TiO2、CaO+MgO、K2O+Na2O等杂质含量和熟料体积密度与吸水等项指标来分级的。
轻烧铝矾土，又称轻烧粉，是净水剂聚合氯化铝的原材料，是铝矾土经过加工生产出来的矿粉材料，主要成分是氧化铝，系含有杂质的水合氧化铝，是一种土状矿物。白色或灰白色，因含铁而呈褐黄或浅红色。密度3.9～4g/cm3，硬度1～3，不透明，质脆。极难熔化。不溶于水，能溶于硫酸、氢氧化钠溶液。
铝矾土常用规格：0-3mm 3-5mm 5-8mm 8-10mm 100目 200目等，可按客户要求进行调整。
铝矾土包装方式：25kg/袋，双层编织袋包装，也可用吨袋包装，可按客户要求进行调整。
Chinese name: bauxite
English name: bauxitic rock
Definition: a rock rich in aluminium mineral chemistry or biochemistry. Main mineral composition of monohydrate hard and soft LvShi, sanshui LvShi monohydrate. Is mainly composed of aluminum silicate minerals by thermal chemical weathering, out of the dissolution of alumina, moving into the sea and lake basin deposition.
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.
Bauxite origin distribution:
At present, the known occurrence bauxite country has 49. China is rich in bauxite resources, about 3.7 billion tons, ranked among the top of the world, and guinea, Australia, Brazil, belong to the world's superpower of bauxite resources. But high production for refractory bauxite only Guyana and China and other countries of the bauxite iron content is high, more than used for smelting aluminium and abrasive materials. Chinese bauxite resources is rich, in the country's 18 provinces, autonomous regions and municipalities directly under the central government has identified 205 of bauxite origin, including 72 large regions (excluding Taiwan). Mainly distributed in shanxi, shandong, hebei, henan, guizhou, sichuan, guangxi, liaoning, hunan and other places.
Product use:
(1) aluminium industry. Used in national defense, aerospace, automotive, electronics, chemical industry, daily necessities, etc. 2 precision casting. Alumina clinker made after the mould precision casting processed into fine powder. Used in military industry, aerospace, communications, instrumentation, machinery and medical equipment department. (3) is used for refractory products. High bauxite clinker refractoriness is as high as 1780 ℃, chemical stability strong, and 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 put high alumina clinker in the melting temperature of about 2000 ~ 2200 ℃ high temperature electric furnace, by high temperature melting, high pressure high speed air, cooling or steam injection, became a white "cotton" - aluminum silicate refractory fiber. It can be pressed into fiber blanket, board or woven cloth instead of smelting, chemical industry, glass and other industrial furnace lining firebrick. Firefighters used refractory fiber cloth to make clothes. 5] with magnesia and bauxite clinker as raw materials, add the appropriate 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 aluminum of various compounds. Bauxite physical and chemical indicators:
Grade chemical composition / % volume density refractoriness
Al2O3 CaO Fe2O3
Super > 85 < 1790 > 0.6 < 2.0 > 0.6
1 > 80 < 1790 > 0.6 < 3.0 > 0.6
Level 2 b 70-80 < 1790 > 0.8 < 3.0 > 2.65
Level 2 b 60 ~ 70 < 1770 > 0.8 < 3.0 > 0.8
Level 3 50 ~ 60 < 1770 > 0.8 < 2.5 > 2.45
: the difference between bauxite product
Bauxite is usually referred to in the refractory industry refers to after calcination Al2O3 > = 48%, and contain low Fe2O3 bauxite, high bauxite clinker is after calcined bauxite ore. Clinker is pale yellow and dark grey, it is mainly used for high aluminum refractory material that can be used to production of fused corundum. High bauxite clinker is according to the content of AL2O3 and Fe2O3, TiO2, CaO + MgO style, K2O + Na2O and other impurities and clinker indicators such as volume density and bibulous to classification. Lightly calcined bauxite, is also called light burning powder, water purifier polyaluminium chloride is the raw material, the type of bauxite is processed to produce the material, the main ingredient is aluminium oxide, hydrate 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.
Bauxite commonly used specifications: 0-3 mm for 3 to 5 mm 5-8 mm 8-10 mm 100 mesh, 200 mesh, etc., can be adjusted according to customer's request.
Bauxite packing: 25 kg/bag, double woven bag packing, also can use ton bag packaging, can be adjusted according to customer's request.
Long abrasive profile:
"Gongyi long polishing abrasive factory" is located in gongyi city, henan province, 15 km away from historic temples temple shaolin temple, the main business for a long time: corundum, brown corundum, white corundum, black corundum, bauxite aggregate, silicon carbide, polishing sand, rust removing sand, iron sand, corn cobs, walnut shell, castable, ramming material and so on. Specializing in the production of various types of brown corundum sand, 1. 2. 3 special sand particle size sand, wear-resisting flooring, metal polishing, sand, W63 - W5 series corundum powder, etc.; Our headquarters is located in gongyi city has complete and scientific quality management system, the integrity, strength and product quality obtain industry acceptance. Welcome friends from all walks of life come to gongyi city long polishing abrasive factory visit, guidance and business negotiation.
联系方式：
巩义市久久抛光磨料厂
联系人：苏晨丹
电话：18939514537
座机：0371-60329928
传真：0371-60329928
QQ：1985802059
邮箱：1985802059@qq.com
网址：http://jiujiupgml.cn.alibaba.com
