Properties of aluminium hydroxide

Aluminium hydroxide is the hydroxide of aluminium, which can react with acid to form salt and water as well as with strong alkali to form salt and water, it is a kind of amphoteric hydroxide, white powdery solid, with slow, long-lasting and strong anti-acid effect, astringent and mucous membrane protection, almost insoluble in water, it can condense the suspended matter in water and adsorb the pigment.

Aluminium hydroxide commonly used specifications are mainly 325 mesh, 800 mesh, 1250 mesh, 5000 mesh four specifications.

Uses of aluminium hydroxide

1、Aluminium hydroxide as a flame retardant can not only flame retardant, but also can prevent fuming, does not produce droplets, does not produce toxic gases.

2、Aluminium hydroxide can condense the suspended matter in water, and have the role of adsorption of pigment, can be used for water purification, but also can remove pigment impurities.

3, medicine, commonly used in the production of aluminium hydroxide dry gel, gastrointestinal class of raw materials used to inhibit gastric acid, and so on.

4, in addition, also used in the manufacture of aluminium salt, enamel, ceramics, glassware and lubricant raw materials; system of a variety of catalyst carriers; used for waterproof fabrics, paper filler, mordant and so on.

Aluminium hydroxide roasting process

Aluminium hydroxide roasting process can not be separated from the application of rotary kiln, rotary kiln roasting, will be washed wet aluminium hydroxide feed into one end of the kiln, from the other end of the kiln sprayed into the heavy oil or gas, in the kiln to complete the drying, removal of water of crystallization and crystalline transformation of the reaction process, the discharge, the aluminium oxide is obtained after cooling. The whole production process is simple, the equipment handling capacity is large, is a low-investment, high-yield aluminium hydroxide preparation process, favoured by the majority of users.

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