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What is activated alumina ball

What is the use of activated alumina balls?

Those who don’t know may have never seen it. The appearance of alumina balls is white spherical particles, which look like glutinous rice balls. It is a kind of porous, highly dispersed, smooth surface, high mechanical strength, strong moisture absorption, and water absorption. It is non-toxic, odorless, insoluble in water and ethanol, and has a strong adsorption of fluorine. It is a solid material that does not expand or crack and remains intact. It is widely used as a desiccant or a catalyst for chemical reactions, catalyst carriers, and gas purification The adsorbent, the fluoride remover for drinking water, the color and odor remover for industrial sewage, etc.

1. The production process of activated alumina balls

The main raw material for the production of activated alumina balls is aluminum hydroxide powder, which is a non-toxic, odorless, and non-corrosive common chemical material. At present, the Bayer method is the most popular and the most widely used. The basic principle is to use concentrated sodium hydroxide solution to convert aluminum hydroxide into sodium aluminate, dilute and add aluminum hydroxide seed crystals to re-precipitate the aluminum hydroxide, and the produced aluminum hydroxide is pulverized by grinding. Treatment, the ball is sintered at a high temperature in a kiln to make activated alumina balls or other types of activated alumina series products.

2. the use of activated alumina balls

It is widely used as catalyst and catalyst carrier in petrochemical industry and fertilizer industry. Modern water purification activated alumina also has adsorption characteristics, so it is used as a desiccant for gas and liquid, an adsorbent for gas purification, a defluorinating agent for drinking water, and a color and odor elimination agent for industrial sewage.

3. the classification of activated alumina balls

Activated alumina balls are currently mainly produced in four categories: desiccants, adsorbents, defluorinating agents, and catalysts according to their use. At present, they are mostly used as adsorbent desiccants and defluorinating agents. Among them, it is mainly used for hydrogen peroxide, pressure swing adsorption, air compression drying, gas separation drying dehydration, instrument air drying, air separation, gas manufacturing; water treatment defluorination and defluorination; chemical catalysis, petrochemical industry, medicine, oil refining, fertilizer, etc. industry.

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