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Features
Activated Alumina Adsorbent (A-AS-04)
This line of products features high crush strengths and low dust content. The material is highly porous, can have a surface area greater than 330 m2/g, and can achieve dew points of -40°F to -100˚F, depending on operating conditions and the design of the dryer.
Features of activated alumina:
Low Dust
Low Attrition
High Crush Strength
Uniform Bead Size
High Adsorption Capacity
Compressed air drying
Natural gas drying
Removal of acids from transformer oils, lubricating oils, and refrigerant
Technical Property of Activated Alumina
| Type Item | A-AS-04 Absorbent | A-AS-DF Defluoridizer | A-AS-MS Absorbent for H2O2 | A-AS-AC Antichlor | A-AS-C Catalyst carrier | A-AS-A Absorbent in air separation | |||
| Appearance | White ball | ||||||||
| Main crystal phase | χ-ρ | χ-ρ | γ | χ-ρ | γ | χ-ρ | |||
Chemical composition % | Al2O3 | ≥93 | ≥93 | ≥92 | ≥90 | ≥93 | ≥90 | ||
| Na2O | ≤0.3 | ≤0.3 | ≤0.5 | 0.15-0.3 | ≤0.3 | ||||
| I.L | 6-8 | 6-8 | ≤8 | ≤ | ≤5 | 6-8 | |||
| Bulk density,g/ml | 0.68-0.72 | 0.70-0.75 | 0.65-0.75 | 0.68-0.78 | 0.70-0.80 | 0.68-0.72 | |||
| Surface area,m2/g | ≥280 | ≥280 | 200-260 | ≥300 | ≥200 | ≥300 | |||
| Pore volume,ml/g | 0.3-0.45 | 0.3-0.42 | 0.4-0.46 | 0.3-0.5 | 0.4 | 0.3-0.5 | |||
| Static absorption,% | Water 20 | Fluorin 0.12 | Water 50 | Chlorine 10-20 | Water 50-70 | Water 20 | |||
| Activity,% | - | - | 56-62 | - | - | - | |||
| Loss on abrasion,% | ≤1.0 | ≤1.0 | ≤1.0 | ≤0.7 | ≤0.4 | ≤0.8 | |||
| Crushing strength, N/grain | Φ1-2 | ≥40 | ≥40 | - | ≥40 | - | - | ||
| Φ2-3 | ≥60 | ≥60 | - | - | - | - | |||
| Φ3-5 | ≥100 | - | ≥100 | ≥82 | ≥100 | ≥100 | |||
| Φ4-6 | ≥120 | - | ≥130 | ≥120 | ≥120 | ≥110 | |||
| Φ5-7 | ≥120 | ≥150 | ≥150 | ≥150 | ≥160 | ≥150 | |||
| Φ6-8 | ≥200 | ≥200 | ≥200 | ≥200 | ≥220 | ≥200 | |||
The products in other types or sizes can also be manufactured if to the user's request.
Application
A-AS-04 activated alumina is manufactured from aluminium hydroxide by dehydroxylating it in
a way that produces a highly porous material;
A-AS-DF activated alumina is also widely used to remove fluoride from drinking water. Basically,
the more alumina in the filter, the less fluoride will be in the final, filtered water.
A-AS-MS is for absorbent H2O2
A-AS-AC is for chlorine absorbent
A-AS-C in hydrogen peroxide production, as a selective adsorbent for many chemicals including,in removal from gas streams .
A-AS-A activated alumina is used as a charge material in foreline traps to prevent generated by from
backstreaming into the system
Industry standard HG/T39272007 Activated Alumina is issued by UNION ALKALIES & CHEMICALS GROUP LTD
