A kind of deoxidation drying agent and preparation method thereof
Technical field
The invention belongs to deoxidation drying agent technical field, it is related to a kind of deoxidation drying agent and preparation method thereof.
Background technology
Drier is a kind of deicer that moisture is absorbed from air, is at itself by physics mode by Water Molecular Adsorption
Structure in or absorbed by chemical mode and hydrone and change its chemical constitution, become another material.It is applied to anti-
Only instrument, instrument, electric equipment, medicine, food, textile and other various packing articles are made moist.
Current market using it is more be exactly silica-gel desiccant, such as Patent No. CN104174373A patent of invention is disclosed
A kind of silica-gel desiccant, select silica gel according to weight percent:50-70%, alundum (Al2O3):12-15%, three oxidations two
Iron:8-10%, calcium chloride:5-8%, magnesium sulfate:3-6%, carboxymethyl cellulose:8-15%, essence:0.7-1.0%, then will choose
After silica gel, alundum (Al2O3), di-iron trioxide, calcium chloride, magnesium sulfate, carboxymethyl cellulose, essence are well mixed, extruder is used
Pellet is pressed into, and sends into dryer, the drying finished product in 120-130 DEG C of drying environment.It is an advantage of the invention that:Absorption speed
Degree is fast, adsorption capacity is big, moreover it is possible to provides the air of delicate fragrance, further lifts air quality.Silica-gel desiccant is typically to use silicic acid
Sodium and sulfuric acid reaction, and be made through a series of processing procedures such as aging, acid bubbles, raw materials for production are dangerous material, and process is more multiple
It is miscellaneous.
Also number acid, alkaline drier, general water absorbing capacity is than larger, and rate of drying mostly can not also than very fast
Regeneration is used.
Molecular sieve desiccant is also a kind of, is artificial synthesized and has the desiccant product of stronger adsorptivity to hydrone, is belonged to
There is regular and uniform duct in crystalline aluminosilicate compound, its crystal structure, aperture is the order of magnitude of molecular size, but
Its preparation process is more complicated, and using effect is also restricted.
At present, using it is more be that bentonite drier adsorption rate is fast, high adsorption capacity can be adsorbed equivalent to from body
The water of 8-20 times of product is expanded to 30 times, more there is stronger cation exchange capacity (CEC) and adsorption capacity, nontoxic, tasteless, contactless
Property burn into is pollution-free, especially to human body fanout free region.It is a kind of long-acting as disclosed in Patent No. CN104258695 Chinese patent
Removal moisture drying agent, product absorption property under room temperature and general humidity is good, is removed with adsorption activity, static dehumidification and peculiar smell
The effects such as, be widely used in it is each need to dry in industry, the potentiality with very big competition in the international market.But, these are swollen at present
The native drier function of profit is single, only with desiccation, and recycles that rate is low, and drying effect is poor after recycling, suction
Attached effect need to be improved.
The content of the invention
It is an object of the invention to provide a kind of deoxidation drying agent, deoxidation and functions/drying are had concurrently, cation exchange capacity (CEC) is strong,
Deoxidation obvious drying effect, recycles rate high;Present invention simultaneously provides the preparation method of the deoxidation drying agent, technique is simple,
It is low for equipment requirements, it is adapted to large-scale industrial production.
The present invention in order to achieve the above object, is adopted the following technical scheme that:A kind of deoxidation drying agent, including following group
Point:Iron powder, bamboo charcoal, sodium chloride, bentonite, quartz sand, water.
The selected optimal component of the technical scheme, on the basis of functions/drying, increases deoxygenation function, with minimum component
Effect is reached, cost is low, processing is simple.Iron powder has the effect of deoxidation, but simple iron powder is just easy to by oxygen in the external world
Melt, it is poor as the effect of deoxidier, processed together with bamboo charcoal, sodium chloride, bentonite etc., protection can be played to iron powder and is made
With the effect of maintenance deoxidation.
Bamboo charcoal, sodium chloride, bentonite are respectively provided with adsorption function, three's mixing, than the absorption effect that thrin is used alone
Fruit is more notable, and adsorption capacity can reach bentonitic at least 3 times of exclusive use;Sodium chloride, which is not only increased, is adsorbed by drying effect
Rate, and together with quartz sand, contributes to the scattered of each component in mixture, especially after a period of time has been used, it is to avoid
Drier it is agglomerating, it is ensured that the deoxidation drying effect that deoxidation drying agent is reused.
Preferably, the addition percentage of each component is:Iron powder 10-35%, bamboo charcoal 1-8%, sodium chloride 1-8%, bentonite 1-
5%th, quartz sand 50-60%, water 10-25%.
Preferably, deoxidation drying agent also includes weight than fibre that the hollow beads for 1-10% and weight ratio are 5-10%
Dimension.
In the technical scheme, fiber provides an attachment medium for mixture, and substantial amounts of water has been adsorbed in deoxidation drying agent
After material, original steric configuration will not be changed, so as to not interfere with the deoxidation functions/drying of itself;Hollow beads are played
The effect of scattered fiber, the effect of further reinforcing fibre.
Preferably, a diameter of 5-15 μm of the fiber, the length of the fiber is 0.1-1mm.
Preferably, the fiber is the mixture of bamboo fibre and viscose rayon, the bamboo fibre and the viscose rayon
Mass mixing ratio be 1-3:1.
Bamboo fibre is respectively provided with good hygroscopicity with viscose rayon, and good with bentonitic tack, especially viscose glue
Fiber, bentonite etc. is adhering to uniform thereon, and adhesive force is good, so that deoxidation drying agent is reproducible.
By above-mentioned implementation such scheme, deoxidation drying agent provided by the present invention has deoxidation and functions/drying concurrently, sun from
Sub- exchange capacity is strong, deoxidation obvious drying effect, recycles rate high.
A kind of preparation method of deoxidation drying agent, including:(1)Bamboo charcoal, sodium chloride, bentonite, quartz sand are mixed, added
Water, stirs;(2)To step(1)In the mixture of gained, hollow beads are added, are mixed;(3)By fiber and iron powder, stirring
After uniform, step is added to(2)In the mixture of gained, mix, obtain deoxidation drying agent.
Further preferably, step(3)Carry out under vacuum.
Preferably, the bentonite is obtained by following steps:(ⅰ)Bentonite material is dried under the conditions of 70-90 DEG C
Afterwards, 300-500 mesh is crushed to, raw material powder is obtained;(ⅱ):Raw material powder is added in sodium salt solution, handled 2-5 hours, filtering is obtained
To treatment fluid;The weight ratio of raw material powder and sodium salt solution is 1:1-3;(ⅲ)Zeolite is added in treatment fluid, in mixing plant, is stirred
Processing 1-3 hours is mixed, mixing speed is 200-300 revs/min;(ⅳ)Step(ⅲ)Obtained treatment fluid is concentrated, dry after
Obtain stand-by bentonite.
In nature, mainly based on calcium-base bentonite, after being dispersed in water, though individual particle has slight expansion,
State is still kept building up between crystal grain, adsorption effect is poor, pre-treatment is carried out to it using sodium salt, bentonite can be further opened
Crystal layer, its adsorptivity can be significantly improved.Moreover, zeolite can be with heavy metal present in adsorption treatment liquid, especially
Heavy metal lead, moreover it is possible to decolourized to treatment fluid, with above-mentioned rotating speed stir process 1-3 hours, fully absorption was fallen heavy metal-polluted
Contaminate thing, it is ensured that the security of product, the whiteness for improving product, be particularly used in the deoxidation drying agent in food, the process is outstanding
Its is important.
Preferably, the sodium salt is one or more of mixtures in sodium carbonate or sodium acid carbonate or sodium pyrophosphate,
The concentration of sodium salt is 50-80%.
Preferably, the sodium salt is the mixture of sodium carbonate and sodium pyrophosphate, mass mixing ratio is 3-5:1.
By above-mentioned implementation such scheme, preparation method technique provided by the present invention is simple, low for equipment requirements, is adapted to
Large-scale industrial production.
Embodiment
With reference to specific embodiment, the present invention is described in further detail.
Embodiment 1:
A kind of deoxidation drying agent, includes the component of following weight percents:Iron powder 20%, bamboo charcoal 2%, sodium chloride 2%, swelling
Soil 1%, quartz sand 60%, water 15%.
The preparation method of above-mentioned deoxidation drying agent, including:(1)Each component is weighed up by weight percentage, by bamboo charcoal, chlorination
Sodium, bentonite, quartz sand mixing, add water, stir;(2)To step(1)In the mixture of gained, iron powder, stirring are added
After uniform, deoxidation drying agent is obtained.
Embodiment 2:
A kind of deoxidation drying agent, includes the component of following weight percents:Iron powder 35%, bamboo charcoal 2%, sodium chloride 2%, swelling
Soil 1%, quartz sand 50%, water 15%.
The preparation method of above-mentioned deoxidation drying agent, including:(1)Each component is weighed up by weight percentage, by bamboo charcoal, chlorination
Sodium, bentonite, quartz sand mixing, add water, stir;(2)To step(1)In the mixture of gained, iron powder, stirring are added
After uniform, deoxidation drying agent is obtained.
Embodiment 3:
A kind of deoxidation drying agent, includes the component of following weight percents:Iron powder 10%, bamboo charcoal 8%, sodium chloride 2%, swelling
Soil 5%, quartz sand 50%, water 25%.
The preparation method of above-mentioned deoxidation drying agent, including:(1)Each component is weighed up by weight percentage, by bamboo charcoal, chlorination
Sodium, bentonite, quartz sand mixing, add water, stir;(2)To step(1)In the mixture of gained, iron powder, stirring are added
After uniform, deoxidation drying agent is obtained.
Wherein, bentonite is obtained by following steps:(ⅰ)After drying bentonite material under the conditions of 90 DEG C, 300 are crushed to
Mesh, obtains raw material powder;(ⅱ):Raw material powder is added in the sodium salt solution that concentration is 50%, handled 5 hours, filtering is handled
Liquid;Sodium salt is sodium pyrophosphate;The weight ratio of raw material powder and sodium salt solution is 1:2;(ⅲ)Zeolite is added in treatment fluid, is set in stirring
In standby, stir process 2 hours, mixing speed is 200 revs/min;(ⅳ)Step(ⅲ)Obtained treatment fluid is concentrated, dry after
Obtain stand-by bentonite.
Embodiment 4:
A kind of deoxidation drying agent, includes the component of following weight percents:Iron powder 15%, bamboo charcoal 3%, sodium chloride 1%, swelling
Soil 5%, quartz sand 60%, water 10%, hollow beads 1%, polyester fiber 5%.
The preparation method of above-mentioned deoxidation drying agent, including:(1)Bamboo charcoal, sodium chloride, bentonite, quartz sand are mixed, added
Water, stirs;(2)To step(1)In the mixture of gained, hollow beads are added, are mixed;(3)By fiber with iron powder true
Mixed under empty condition, after stirring, be added to step(2)In the mixture of gained, mix, obtain deoxidation drying agent.
Wherein, bentonite is obtained by following steps:(ⅰ)After drying bentonite material under the conditions of 90 DEG C, 300 are crushed to
Mesh, obtains raw material powder;(ⅱ):Raw material powder is added in the sodium salt solution that concentration is 50%, handled 5 hours, filtering is handled
Liquid;Sodium salt is the mixture of sodium carbonate and sodium pyrophosphate, and mass mixing ratio is 5:1;The weight ratio of raw material powder and sodium salt solution is
1:2;(ⅲ)Zeolite is added in treatment fluid, in mixing plant, stir process 2 hours, mixing speed is 200 revs/min;(ⅳ)
Step(ⅲ)Obtained treatment fluid is concentrated, dry after obtain stand-by bentonite.
Embodiment 5:
A kind of deoxidation drying agent, includes the component of following weight percents:Iron powder 10%, bamboo charcoal 1%, sodium chloride 5%, swelling
Soil 1%, quartz sand 55%, water 15%, hollow beads 3%, fiber 10%;Wherein fiber is the mixture of bamboo fibre and viscose rayon, matter
It is 3 to measure mixing ratio:1.
The preparation method of above-mentioned deoxidation drying agent, including:(1)Bamboo charcoal, sodium chloride, bentonite, quartz sand are mixed, added
Water, stirs;(2)To step(1)In the mixture of gained, hollow beads are added, are mixed;(3)By fiber with iron powder true
Mixed under empty condition, after stirring, be added to step(2)In the mixture of gained, mix, obtain deoxidation drying agent.
Wherein, bentonite is obtained by following steps:(ⅰ)After drying bentonite material under the conditions of 70 DEG C, 400 are crushed to
Mesh, obtains raw material powder;(ⅱ):Raw material powder is added in the sodium salt solution that concentration is 80%, handled 2 hours, filtering is handled
Liquid;Sodium salt is the mixture of sodium carbonate and sodium pyrophosphate, and mass mixing ratio is 3:1;The weight ratio of raw material powder and sodium salt solution is
1:2;(ⅲ)Zeolite is added in treatment fluid, in mixing plant, stir process 2 hours, mixing speed is 250 revs/min;(ⅳ)
Step(ⅲ)Obtained treatment fluid is concentrated, dry after obtain stand-by bentonite.
Embodiment 6:
A kind of deoxidation drying agent, includes the component of following weight percents:Iron powder 15%, bamboo charcoal 8%, sodium chloride 3%, swelling
Soil 2%, quartz sand 50%, water 15%, hollow beads 1%, fiber 6%;Wherein fiber is the mixture of bamboo fibre and viscose rayon, matter
It is 2 to measure mixing ratio:1.
The preparation method of above-mentioned deoxidation drying agent, including:(1)Bamboo charcoal, sodium chloride, bentonite, quartz sand are mixed, added
Water, stirs;(2)To step(1)In the mixture of gained, hollow beads are added, are mixed;(3)By fiber with iron powder true
Mixed under empty condition, after stirring, be added to step(2)In the mixture of gained, mix, obtain deoxidation drying agent.
Wherein, bentonite is obtained by following steps:(ⅰ)After drying bentonite material under the conditions of 80 DEG C, 500 are crushed to
Mesh, obtains raw material powder;(ⅱ):Raw material powder is added in the sodium salt solution that concentration is 60%, handled 4 hours, filtering is handled
Liquid;Sodium salt is sodium carbonate;The weight ratio of raw material powder and sodium salt solution is 1:3;(ⅲ)Zeolite is added in treatment fluid, in mixing plant
In, stir process 3 hours, mixing speed is 200 revs/min;(ⅳ)Step(ⅲ)Obtained treatment fluid is concentrated, dry after
To stand-by bentonite.
Embodiment 7:
A kind of deoxidation drying agent, includes the component of following weight percents:Iron powder 30%, bamboo charcoal 2%, sodium chloride 1%, swelling
Soil 1%, quartz sand 50%, water 10%, hollow beads 1%, fiber 5%;Wherein fiber is the mixture of bamboo fibre and viscose rayon, matter
It is 1 to measure mixing ratio:1.
The preparation method of above-mentioned deoxidation drying agent, including:(1)Bamboo charcoal, sodium chloride, bentonite, quartz sand are mixed, added
Water, stirs;(2)To step(1)In the mixture of gained, hollow beads are added, are mixed;(3)By fiber with iron powder true
Mixed under empty condition, after stirring, be added to step(2)In the mixture of gained, mix, obtain deoxidation drying agent.
Wherein, bentonite is obtained by following steps:(ⅰ)After drying bentonite material under the conditions of 75 DEG C, 350 are crushed to
Mesh, obtains raw material powder;(ⅱ):Raw material powder is added in the sodium salt solution that concentration is 70%, handled 3 hours, filtering is handled
Liquid;Sodium salt be sodium acid carbonate and mixture, mass mixing ratio is 3.5:1;The weight ratio of raw material powder and sodium salt solution is 1:1;
(ⅲ)Zeolite is added in treatment fluid, in mixing plant, stir process 1 hour, mixing speed is 300 revs/min;(ⅳ)Step
(ⅲ)Obtained treatment fluid is concentrated, dry after obtain stand-by bentonite.