Activated Alumina
| Unit Price: | 959 Get Latest Price |
| Model No.: | AA |
| Min. Order: | 1 |
| Packaging: | bag, carton, drum |
| Delivery Time: | 20 Days |
| Place of Origin: | China |
| Brand: | Yuanying |
| Supply Ability: | 100 |
| Certificate: | ISO9001 |
Product Description
Activated Alumina HS Code: 28182000, CAS: 1302-74-5
Activated alumina adsorbent is white spherical porous granules, surface smooth, uniform particle size, non-toxic, odorless, tasteless, insoluble in water, alcohol and organic solvents, but insoluble in acids and alkalis. Activated alumina has strong moisture adsorption, does not burst after absorbing water, possesses big mechanical strength, specific surface area and pore volume.
Due to the unique porous bone structure, high specific surface area and in an unstable transition state, activated alumina has biggish activity, strong affinity with active ingredient. Activated alumina has a number of capillary channels, its selective adsorption not only determined by its micro-holes diameter size, but also according to the polarity of the adsorbed materials. Activated alumina has a strong affinity to water, acetic acid, alkali, etc., is a micro-water depth desiccant also is the adsorbent of polar molecules. Activated alumina monomolecular adsorption layer has high net heat quantity, is very suitable for non-heat regenerative device (pressure swing adsorption device), its dew point temperature is below -70°C and is a highly efficient desiccant.
Yuanying activated alumina defluorination agent is white spherical porous particles, uniform particle size, smooth surface, high mechanical strength, hygroscopicity strong, does not crack and inflate after absorbing water. It is non-toxic, tasteless, odorless, insoluble in water and organic solvents.
Fluorine is one of the trace element necessary for animal and human. Adult normal daily intake should be 2~3 mg, too much or too little can lead to disease, so defluorination is important in drinking water. Activated alumina has good strength, good abrasion resistance, long service life, stable performance, high defluorination capacity, after defluorination the water quality accords with national health standards, so activated alumina is one of the indispensable material in water treatment.
Activated Alumina Adsorbent
Activated alumina adsorbent is white spherical porous granules, surface smooth, uniform particle size, non-toxic, odorless, tasteless, insoluble in water, alcohol and organic solvents, but insoluble in acids and alkalis. Activated alumina has strong moisture adsorption, does not burst after absorbing water, possesses big mechanical strength, specific surface area and pore volume.
Due to the unique porous bone structure, high specific surface area and in an unstable transition state, activated alumina has biggish activity, strong affinity with active ingredient. Activated alumina has a number of capillary channels, its selective adsorption is not only determined by its micro-holes diameter size, but also according to the polarity of the adsorbed materials. Activated alumina has a strong affinity to water, acetic acid, alkali, etc., is a micro-water depth desiccant also is the adsorbent of polar molecules. Activated alumina monomolecular adsorption layer has high net heat quantity, is very suitable for non-heat regenerative device (pressure swing adsorption device), its dew point temperature is below -70°C and is a highly efficient desiccant.
Yuanying Activated Alumina adsorbent has advantages such as stable chemical properties, good adsorption capacity, high pressure-resistant, high wear-resistant, etc.
Widely used in petrochemical gas and liquid drying, food, oxygen industry, textile industry, electronic industry, air filter, air compressor and automated instrument drying.
Activated Alumina Defluorination Agent
Activated alumina defluorination agent is white spherical porous particles, uniform particle size, smooth surface, high mechanical strength, hygroscopicity strong, does not crack and inflate after absorbing water. It is non-toxic, tasteless, odorless, insoluble in water and organic solvents.
Fluorine is one of the trace elements necessary for animal and human. Adult normal daily intake should be 2~3 mg, too much or too little can lead to disease, so defluorination is important in drinking water. Yuanying Activated alumina has good strength, good abrasion resistance, long service life, stable performance, high defluorination capacity, after defluorination the water quality accords with national health standards, so activated alumina is one of the indispensable material in water treatment.
Activated alumina has amphoteric adsorption properties, by regulating the PH value of aqueous solution, anions in aqueous solution can be detached. Activated alumina defluorination equipment is similar to ion exchanger, in order to obtain high defluorination capacity, need to lower PH value, while the PH value is 5.5 activated alumina adsorption rate of fluorine is the largest. In order to meet the quality requirement and control corrosion, PH values should be slightly acidic. Activated alumina defluorination is similar to the anion exchange resin, but the selectivity for fluoride ion is larger than the anion resin. Activated alumina widely used for fluoride removal in high fluoride area, cyclic alkanes defluorination agent among alkylbenzene production.
Smaller particle size can increase specific surface area, make a fully contact between activated alumina and water. For example, commonly used 1-3 mm, 0.4-1.2 mm, their specific surface area are generally more than 320 m2/g. High specific surface area means huge number of micropore, it can ensure a strong adsorption of fluoride ion in water. When raw water PH value and alkalinity is lower, defluorination capacity of activated alumina is higher, fluoride absorption of per cubic meter activated alumina is 6400 grams, fluoride absorption capacity is greater than 4.0mg/g, and the price is lower than synthetic resin. This product can also be used for dearsenification, wastewater decolorizing, deodorizing, etc.
Activated Alumina Catalyst Support
Activated Alumina Catalyst Support is a white, spherical porous material, non-toxic, odorless, not powdering, insoluble in water and alcohol. Yuanying Activated Alumina Catalyst Support has even micro-holes, appropriate aperture size, big pore volume, high water absorption, small bulk density, good mechanical properties, good stability, suitable for catalyst support.
Alumina has been found to exist at least 8 form, they are α- Al2O3, θ-Al2O3, γ- Al2O3, δ- Al2O3, η- Al2O3, χ- Al2O3, κ- Al2O3 and ρ- Al2O3, their respective macroscopic structure properties are also different. Gamma -Al2O3 is a cubic close packed crystal, insoluble in water, but soluble in acid and alkali. Gamma Al2O3 carrier is weak acidic support, has a high melting point 2050°C, alumina gel in hydrate form can be made into the oxide with high porosity and high specific surface, it has transition phases in a wide temperature range. At higher temperature, due to dehydration and dehydroxylation, the Al2O3 surface appears coordination unsaturated oxygen (alkali center) and aluminum (acid center), with catalytic activity. Therefore, alumina can be used as support, catalyst and cocatalyst.
Gamma-Al2O3, was called [activated alumina", is a kind of porous high dispersion solid materials, because of its adjustable pore structure, large specific surface area, good adsorption performance, surface with the advantages of acidity and good thermal stability, microporous surface with requisite properties of catalytic action, therefore become the most widely used catalyst, catalyst carrier and chromatography carrier in the chemical and oil industry, and plays an important role in the oil hydrocracking, hydrogenation refining, hydrogenation reforming, dehydrogenation reaction and automobile exhaust purification process.
Gamma-Al2O3 is widely used as catalyst support because of the adjustability of its pore structure and surface acidity. When gamma-Al2O3 is used as a carrier, besides can have the effects to disperse and stabilize active components, also can provide acid alkali active center, synergistic reaction with the catalytic active components. The pore structure and surface properties of catalyst depend on gamma-Al2O3 support, so high performance support would be found for specific catalytic reaction by controlling the properties of gamma-Al2O3 support.
Gamma-Al2O3 is generally made of its precursor pseudo-boehmite through 400~600°C high temperature dehydration, so the surface physicochemical properties is largely determined by its precursor pseudo-boehmite, but there are many ways to make pseudo-boehmite, and different sources of pseudo-boehmite leads to the diversity of gamma-Al2O3. However, to those catalysts with special requirements to alumina support, only rely on the control of precursor pseudo-boehmite is difficult to achieve, must be taken to prophase preparation and post processing combining approaches to adjust the properties of alumina to meet different requirements. When the temperature is higher than 1000°C in use, alumina occurs following phase transformation: γ→δ→θ→α-Al2O3, among them γ, δ, θ are cubic close packing, the difference only lies in the distribution of aluminum ions in tetrahedral and octahedral, so these phase transformation does not cause much variation of the structures. Oxygen ions in alpha phase are hexagonal close packing, aluminum oxide particles are grave reunion, specific surface area declined considerably.
Application
(1) The Co-Mo sulfur-resistant shift catalysts produced by Activated Alumina Catalyst Support has good low-temperature activity, width working temperature, short vulcanization time and other merits, it is applicable to small and medium sized ammonia factory.
(2) In the natural gas and petrochemical refining industrial process, to the hydrogen sulfide, can use activated alumina as catalyst for sulfur recovery.
(3) The most widely application for activated alumina catalyst support is hydrotreating, it can raise H/C ratio and get rid of O, S, N, finally can remove V, Ni and other contaminants.
(4) Another application for the activated alumina catalyst support is automobile exhaust catalyst, it can promote the oxidation of hydrocarbons, carbon monoxide and nitric oxide in exhaust gas, reduce air pollution.
(5) In the petroleum hydrocracking, hydrogenation refining, hydrogenation reforming, drogenation reaction and automobile exhaust purification process, activated alumina catalyst support plays an important role.
(6) Used for Alcohol dehydration, olefin isomerization, hydrogenation, oxidation and polymerization.
Activated alumina adsorbent is white spherical porous granules, surface smooth, uniform particle size, non-toxic, odorless, tasteless, insoluble in water, alcohol and organic solvents, but insoluble in acids and alkalis. Activated alumina has strong moisture adsorption, does not burst after absorbing water, possesses big mechanical strength, specific surface area and pore volume.
Due to the unique porous bone structure, high specific surface area and in an unstable transition state, activated alumina has biggish activity, strong affinity with active ingredient. Activated alumina has a number of capillary channels, its selective adsorption not only determined by its micro-holes diameter size, but also according to the polarity of the adsorbed materials. Activated alumina has a strong affinity to water, acetic acid, alkali, etc., is a micro-water depth desiccant also is the adsorbent of polar molecules. Activated alumina monomolecular adsorption layer has high net heat quantity, is very suitable for non-heat regenerative device (pressure swing adsorption device), its dew point temperature is below -70°C and is a highly efficient desiccant.
Yuanying activated alumina defluorination agent is white spherical porous particles, uniform particle size, smooth surface, high mechanical strength, hygroscopicity strong, does not crack and inflate after absorbing water. It is non-toxic, tasteless, odorless, insoluble in water and organic solvents.
Fluorine is one of the trace element necessary for animal and human. Adult normal daily intake should be 2~3 mg, too much or too little can lead to disease, so defluorination is important in drinking water. Activated alumina has good strength, good abrasion resistance, long service life, stable performance, high defluorination capacity, after defluorination the water quality accords with national health standards, so activated alumina is one of the indispensable material in water treatment.
Activated Alumina Adsorbent
Activated alumina adsorbent is white spherical porous granules, surface smooth, uniform particle size, non-toxic, odorless, tasteless, insoluble in water, alcohol and organic solvents, but insoluble in acids and alkalis. Activated alumina has strong moisture adsorption, does not burst after absorbing water, possesses big mechanical strength, specific surface area and pore volume.
Due to the unique porous bone structure, high specific surface area and in an unstable transition state, activated alumina has biggish activity, strong affinity with active ingredient. Activated alumina has a number of capillary channels, its selective adsorption is not only determined by its micro-holes diameter size, but also according to the polarity of the adsorbed materials. Activated alumina has a strong affinity to water, acetic acid, alkali, etc., is a micro-water depth desiccant also is the adsorbent of polar molecules. Activated alumina monomolecular adsorption layer has high net heat quantity, is very suitable for non-heat regenerative device (pressure swing adsorption device), its dew point temperature is below -70°C and is a highly efficient desiccant.
Yuanying Activated Alumina adsorbent has advantages such as stable chemical properties, good adsorption capacity, high pressure-resistant, high wear-resistant, etc.
Widely used in petrochemical gas and liquid drying, food, oxygen industry, textile industry, electronic industry, air filter, air compressor and automated instrument drying.
Activated Alumina Defluorination Agent
Activated alumina defluorination agent is white spherical porous particles, uniform particle size, smooth surface, high mechanical strength, hygroscopicity strong, does not crack and inflate after absorbing water. It is non-toxic, tasteless, odorless, insoluble in water and organic solvents.
Fluorine is one of the trace elements necessary for animal and human. Adult normal daily intake should be 2~3 mg, too much or too little can lead to disease, so defluorination is important in drinking water. Yuanying Activated alumina has good strength, good abrasion resistance, long service life, stable performance, high defluorination capacity, after defluorination the water quality accords with national health standards, so activated alumina is one of the indispensable material in water treatment.
Activated alumina has amphoteric adsorption properties, by regulating the PH value of aqueous solution, anions in aqueous solution can be detached. Activated alumina defluorination equipment is similar to ion exchanger, in order to obtain high defluorination capacity, need to lower PH value, while the PH value is 5.5 activated alumina adsorption rate of fluorine is the largest. In order to meet the quality requirement and control corrosion, PH values should be slightly acidic. Activated alumina defluorination is similar to the anion exchange resin, but the selectivity for fluoride ion is larger than the anion resin. Activated alumina widely used for fluoride removal in high fluoride area, cyclic alkanes defluorination agent among alkylbenzene production.
Smaller particle size can increase specific surface area, make a fully contact between activated alumina and water. For example, commonly used 1-3 mm, 0.4-1.2 mm, their specific surface area are generally more than 320 m2/g. High specific surface area means huge number of micropore, it can ensure a strong adsorption of fluoride ion in water. When raw water PH value and alkalinity is lower, defluorination capacity of activated alumina is higher, fluoride absorption of per cubic meter activated alumina is 6400 grams, fluoride absorption capacity is greater than 4.0mg/g, and the price is lower than synthetic resin. This product can also be used for dearsenification, wastewater decolorizing, deodorizing, etc.
Activated Alumina Catalyst Support
Activated Alumina Catalyst Support is a white, spherical porous material, non-toxic, odorless, not powdering, insoluble in water and alcohol. Yuanying Activated Alumina Catalyst Support has even micro-holes, appropriate aperture size, big pore volume, high water absorption, small bulk density, good mechanical properties, good stability, suitable for catalyst support.
Alumina has been found to exist at least 8 form, they are α- Al2O3, θ-Al2O3, γ- Al2O3, δ- Al2O3, η- Al2O3, χ- Al2O3, κ- Al2O3 and ρ- Al2O3, their respective macroscopic structure properties are also different. Gamma -Al2O3 is a cubic close packed crystal, insoluble in water, but soluble in acid and alkali. Gamma Al2O3 carrier is weak acidic support, has a high melting point 2050°C, alumina gel in hydrate form can be made into the oxide with high porosity and high specific surface, it has transition phases in a wide temperature range. At higher temperature, due to dehydration and dehydroxylation, the Al2O3 surface appears coordination unsaturated oxygen (alkali center) and aluminum (acid center), with catalytic activity. Therefore, alumina can be used as support, catalyst and cocatalyst.
Gamma-Al2O3, was called [activated alumina", is a kind of porous high dispersion solid materials, because of its adjustable pore structure, large specific surface area, good adsorption performance, surface with the advantages of acidity and good thermal stability, microporous surface with requisite properties of catalytic action, therefore become the most widely used catalyst, catalyst carrier and chromatography carrier in the chemical and oil industry, and plays an important role in the oil hydrocracking, hydrogenation refining, hydrogenation reforming, dehydrogenation reaction and automobile exhaust purification process.
Gamma-Al2O3 is widely used as catalyst support because of the adjustability of its pore structure and surface acidity. When gamma-Al2O3 is used as a carrier, besides can have the effects to disperse and stabilize active components, also can provide acid alkali active center, synergistic reaction with the catalytic active components. The pore structure and surface properties of catalyst depend on gamma-Al2O3 support, so high performance support would be found for specific catalytic reaction by controlling the properties of gamma-Al2O3 support.
Gamma-Al2O3 is generally made of its precursor pseudo-boehmite through 400~600°C high temperature dehydration, so the surface physicochemical properties is largely determined by its precursor pseudo-boehmite, but there are many ways to make pseudo-boehmite, and different sources of pseudo-boehmite leads to the diversity of gamma-Al2O3. However, to those catalysts with special requirements to alumina support, only rely on the control of precursor pseudo-boehmite is difficult to achieve, must be taken to prophase preparation and post processing combining approaches to adjust the properties of alumina to meet different requirements. When the temperature is higher than 1000°C in use, alumina occurs following phase transformation: γ→δ→θ→α-Al2O3, among them γ, δ, θ are cubic close packing, the difference only lies in the distribution of aluminum ions in tetrahedral and octahedral, so these phase transformation does not cause much variation of the structures. Oxygen ions in alpha phase are hexagonal close packing, aluminum oxide particles are grave reunion, specific surface area declined considerably.
Application
(1) The Co-Mo sulfur-resistant shift catalysts produced by Activated Alumina Catalyst Support has good low-temperature activity, width working temperature, short vulcanization time and other merits, it is applicable to small and medium sized ammonia factory.
(2) In the natural gas and petrochemical refining industrial process, to the hydrogen sulfide, can use activated alumina as catalyst for sulfur recovery.
(3) The most widely application for activated alumina catalyst support is hydrotreating, it can raise H/C ratio and get rid of O, S, N, finally can remove V, Ni and other contaminants.
(4) Another application for the activated alumina catalyst support is automobile exhaust catalyst, it can promote the oxidation of hydrocarbons, carbon monoxide and nitric oxide in exhaust gas, reduce air pollution.
(5) In the petroleum hydrocracking, hydrogenation refining, hydrogenation reforming, drogenation reaction and automobile exhaust purification process, activated alumina catalyst support plays an important role.
(6) Used for Alcohol dehydration, olefin isomerization, hydrogenation, oxidation and polymerization.
