Activated Alumina ball
[alias]: activated alumina, activated alumina, activated alumina
desiccant, activated alumina ball
[name]: Activated English activated alumina ball
[characteristic]: activated alumina porous, non-toxic, colorless,
odorless, no powder, insoluble in water, ethanol, has strong
adsorption of fluoride, mainly used in high fluoride areas of
drinking water fluoride removal.
[appearance]: activated alumina ball is a white spherical porous particle particle particle size
uniform, round, smooth surface, high mechanical strength, strong
adsorption, absorption after expansion, maintaining the original
[purpose]: mainly used for activated alumina adsorbent, purifying
agent, catalyst and catalyst carrier, according to different
purposes, the recipe is different.
Effect of activated alumina.
Activated alumina ball has selective adsorption and the role of water vapor and liquid
water. After adsorption saturation can be in 175-315 DEG C heating
except water activation, activation of activated alumina also can
adsorb on, activated alumina can be activated several times. In
addition to used as a desiccant, but also from the oxygen,
hydrogen, carbon dioxide, natural gas and other oil pollution to
adsorb oil vapor, also as catalysts and catalyst carriers, active
alumina belongs to the category of chemical alumina, mainly for
adsorption and purification agent, catalyst and catalyst carrier.
According to products with different raw materials and production
processes are different.
[activated alumina eliminates the fluorine] this product can be
used as drinking water in addition to fluorine agent of high
fluoride (fluoride removal capacity), fluoride removal agent,
transformer oil removal acid, used as industrial oxygen
regeneration, textile industry, electronic industry, production of
alkyl benzene alkane gas drying cycle, automation instrument table
air dry and dry fertilizer, petrochemical and other industries of
the desiccant and purification agent (dew point up to - 40
degrees), in the empty sub industry dew points are stable up to 55
degrees below zero adsorption.
Is a kind of trace moisture dry, desiccant. Very suitable for no
heat regeneration device.
The methods of fluoride removal from roughly divided into the
The adsorption filtration method; the membrane method; the
flocculation; the ion exchange method.
The main factors of the adsorption performance of activated alumina
The particle size: the smaller the particle size, the adsorption
capacity is higher, but the smaller the particle size, particle
strength is low, affect the service life.
The pH value of raw water: when the pH value is greater than 5, the
lower the pH value, the higher adsorption capacity of activated
alumina. The raw water initial fluoride concentration, initial
fluoride concentration is high, the high adsorption capacity.
The raw water alkalinity: high bicarbonate concentration in raw
water, the adsorption capacity will be reduced.
The chloride and sulfate ions.
Effects of arsenic is: activated alumina arsenic in water with
adsorption, the accumulation of arsenic in activated alumina caused
decline of fluoride adsorption capacity and regeneration when
elution arsenic ion is more difficult.
How to regenerate the activated alumina ball
Regeneration agent with sodium hydroxide solution, also can use
aluminum sulfate solution. Solution concentration of NaOH
regeneration agent using 0.75%1%, sodium hydroxide consumption can
be calculated according to the per 1g fluoride removed the 810g
solid sodium hydroxide and regeneration liquid dosage for 3-6 times
the volume of filter media. Aluminum sulfate regenerant solution
concentration by 2-3%, the consumption of aluminum sulfate can be
calculated according to the per 1g fluoride removed to 6080g
sulfate solid aluminum.
Chemical activated alumina
The molecular formula:Al2O3 (Formula) - nH2O (0 < n < 3)
The molecular weight (Molecular Weight):101.96 + nH2O)
The effect of activated alumina desulfurizer
Activated alumina can make desiccant, adsorbent, catalyst,
purifying agent and other purposes is a porous, high dispersion of
solid materials, activated alumina whether can as desulfurization
agent to use, need to understand the desulfurization agent use.
Desulfurization agent can remove exhaust gas oxygen and sulphur
compounds, as long as can be adsorbed compounds of sulfur dioxide
in flue gas of materials can used for desulfurization.
Activated alumina ball itself with the adsorption capacity, for
water and gas, water vapor has strong adsorption performance, so