What are the requirements of activated alumina, how to distinguish the quality of the stand or fall?

Activated Alumina, also known as Activated Alumina or Reactive Alumina; Activated alumin um (I) oxide.

The use of alumina in catalysts is often referred to exclusively as "activated alumina,"

It is a kind of porous, high dispersibility solid material, with a large surface area, and its microporous surface has the characteristics required by catalytic action, such as adsorption performance, surface activity, excellent thermal stability, etc., so it is widely used as catalyst and catalyst carrier for chemical reaction. Activated alumina ball is divided into type and type according to the main crystal composition, according to its use can be divided into activated alumina ball adsorbent, activated alumina ball desiccants and activated alumina ball catalyst carrier.

Main USES of activated alumina: High performance activated alumina can bring the following benefits in the amorphous refractory ingredients: improve the density, fluidity, strength, increase the production of secondary mullite, etc., reduce the amount of water added and porosity.

In addition, activated alumina can also do desiccant, water absorption, drying speed, regeneration (400-500K baking). Activated alumina belongs to the category of chemical alumina, which is mainly used as adsorbent, water purifier, catalyst and catalyst carrier. According to different USES, its raw materials and preparation methods are different. Activated alumina ball is suitable for drying a variety of gases and liquids. It is used as adsorbent, desiccant, catalyst and carrier in many reaction processes such as petroleum, chemical fertilizer and chemical industry.

Various kinds of activated alumina:

γtype,The catalyst carrier is alumina, a very stable catalyst carrier, which can also be used as a catalyst itself.

χ-ρ,Defluorinating agent: defluorinated with water for food, capacity of fluorine absorption: 2.1mg/g.

χ-ρ-γ,Hydrogen peroxide special type: used for the purification of hydrogen peroxide working liquid.

χ-ρ,Oil purifier: used for decolorizing and purifying transformer oil.

Physical and chemical indexes of activated alumina:
Activated alumina is produced by scientific preparation and catalytic finishing of high purity alumina. It can adsorb and remove the fluorine harmful to human body in water, and can be used for deoxygenation, defluorination, arsenic removal, wastewater decolorization, deodorization, etc.

The methods for the identification of the quality of activated alumina balls are summarized as follows:
First, the strength test of activated alumina ball. In the use of the whole activated alumina ball, its strength is a relatively important index, in general, its strength to reach more than 85, only to achieve this index, activated alumina ball to reach the normal life, otherwise the life is very short.
Second, the appearance of activated alumina ball was detected. The product is allowed to have a certain rate of breakage, but the rate of breakage should be controlled at less than 1%, the general product breakage rate is around 0.6%, if the rate of breakage is too high, the use of the entire air compressor will cause a certain impact.
In the third. Activated alumina ball specifications to be unified. Due to the particularity of the air compressor, the specification error of activated alumina ball to be below 1 cm, specification float exceeds bid, will affect the operation of the air compressor.