CN104324732B - Remove the preparation method of formaldehyde activity charcoal - Google Patents
Remove the preparation method of formaldehyde activity charcoal Download PDFInfo
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- CN104324732B CN104324732B CN201410618037.0A CN201410618037A CN104324732B CN 104324732 B CN104324732 B CN 104324732B CN 201410618037 A CN201410618037 A CN 201410618037A CN 104324732 B CN104324732 B CN 104324732B
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Abstract
The present invention relates to technical field of active carbon, it is specially a kind of activated carbon removing formaldehyde, use coal mass active carbon as carrier framework material, it is loaded with 0.5%～3%(weight) basic copper carbonate, 0.5%～3%(weight) manganese nitrate, 0.5%～3%(weight) cerous nitrate, 0.01%～0.1%(weight) silver nitrate, 40%～60%(weight) adhesive (tar).During preparing activated carbon, chemicals directly mixes with coal dust, then through press strip, carbonize, activate, prepare except formaldehyde activated carbon, compared with other preparation method, production cost can be substantially reduced.
Description
Technical field
The present invention relates to technical field of active carbon, a kind of activated carbon removing formaldehyde and preparation method.
Background technology
Formaldehyde (HCHO) is a kind of common room air pollution, is mainly derived from the artificial board of indoor furniture, the binder with formaldehyde as primary raw material, and contains formaldehyde components the other kinds ornament materials that can outwardly distribute.Formaldehyde is the material that toxicity is higher, is in second on China's toxic chemical priority acccess control list.For this situation, the technology of various improvement formaldehyde is arisen at the historic moment.Currently used administering method can be roughly classified into Ozonation, absorption method, photocatalytic oxidation and metal oxide method, and wherein absorption method has raw material extensively, simple to operate, low power consumption and other advantages.
Mostly the material being presently used for absorption method removal formaldehyde is that on activated carbon, molecular sieve high-ratio surface material loading different activities component is prepared from, but owing to most carrying method load capacity bare areas few, effective are inadequate, relatively costly, it is unsuitable for extensively applying.
Summary of the invention
It is an object of the invention to provide a kind of removal formaldehyde gas activated carbon and preparation method thereof, be mainly used in PARA FORMALDEHYDE PRILLS(91,95) gas and effectively protect.
The present invention adopts the following technical scheme that realization:
A kind of removal formaldehyde activity charcoal, use coal mass active carbon as carrier framework material, it is loaded with 0.5%～3%(weight) basic copper carbonate, 0.5%～3%(weight) manganese nitrate, 0.5%～3%(weight) cerous nitrate, 0.01%～0.1%(weight) silver nitrate, 40%～60%(weight) adhesive (tar)；Wherein, it is 100% calculating with the weight of coal mass active carbon.
The preparation technology of this activated carbon mainly includes moulding process, charring process, activating process, specific as follows:
1, moulding process
Raw material coal is carried out the abrasive dust of 7 hours, the screen cloth by 180 mesh of the coal dust 95% after mill.Weigh basic copper carbonate 0.5%～3%, manganese nitrate 0.5%～3%, cerous nitrate 0.5%～3%, silver nitrate 0.01%～0.1%, adhesive 40%～60%(the most by weight by the weight calculating of coal dust), the above medicine weighed up is sequentially added in kneading machine and is sufficiently mixed, temperature controls at 80～100 DEG C, the mixability of material is noted at any time in mixed process, after material mixes, material is taken out, quickly putting in four fluid injection press and be shaped, (sample particle diameter is 0.9 to prepare sample
Mm).
2, charring process
Charing is the important stage that activated carbon pore structure is formed.Charing mainly pyrolytic process, gets rid of fugitive constituent and moisture, raising charcoal granule strength in molding mass, forms preliminary hole.Carbonization temperature, body of heater rotating speed etc. also produces impact to the performance of carbonized material.Carbonization condition: charing final temperature 550 DEG C, charing rotating speed 25r/min.
3, activating process
The activation of activated carbon is a process giving carbon activity, makes charcoal form loose structure.Activation is generally divided into two stages: one is the clear hole stage, is purged by the material on carbonized material surface；Two is the reaming stage, is become larger by aperture, or forms new hole.Activation condition: activation temperature 850 DEG C, water vapour amount 4～4.5ml/min.
The present invention by comprising basic copper carbonate, manganese nitrate, cerous nitrate, compound and the coal dust of silver nitrate carry out being sufficiently mixed, being molded, it is prepared as activated carbon through charing, activation, the metal oxide with reactivity it is converted into by the above metallic compound of heat-activated, with formaldehyde generation catalytic reaction, making Formaldehyde decomposition is CO2, and H2O。
Compared with prior art, have the advantage that
1, different types of coal or other materials are as raw material；
2, during preparing activated carbon, the coal dust of milled is carried out mixing press strip shaping with chemical reagent basic copper carbonate, manganese nitrate, cerous nitrate, silver nitrate, adhesive, water, but is not limited to add other component on this basis；
3, directly selecting coal is that activated carbon prepared by raw material, can effectively protect formaldehyde gas, and can reduce cost.
This method is a kind of with activated carbon manufacture method as source, adds active component in a certain operation, finally prepare can the cheap novel absorbent charcoal of effectively decomposing formaldehyde gas, effective protection of PARA FORMALDEHYDE PRILLS(91,95) gas can be met.The preparation breaking conventional formaldehyde gas protective materials is all with certain material as carrier, adds on this basis, with formaldehyde gas, chemistry or one or more chemicals of catalytic reaction occurs so that it is the method that PARA FORMALDEHYDE PRILLS(91,95) is removed.During preparing activated carbon, chemicals directly mixes with coal dust, then through press strip, carbonize, activate, prepare the activated carbon except formaldehyde, compared with other preparation method, production cost can be substantially reduced.
The present invention is reasonable in design, and preparation technology simply, easily operate, can realize mass production capabilities, and compared with impregnated carbon, weak effect is away from not quite.
Detailed description of the invention
Below the specific embodiment of the present invention is described in detail.
Embodiment1
A kind of removal formaldehyde activity charcoal, use coal mass active carbon as carrier framework material, it is loaded with 2%(weight) basic copper carbonate, 1.5%(weight) manganese nitrate, 1.5%(weight) cerous nitrate, 0.05%(weight) silver nitrate, 50%(weight) adhesive-tar；Wherein, it is 100% calculating with the weight of coal mass active carbon.
The preparation technology of this activated carbon mainly includes moulding process, charring process, activating process, specific as follows:
1, moulding process
Raw material coal (such as 100g) is carried out the abrasive dust of 7 hours, the screen cloth by 180 mesh of the coal dust 95% after mill.Weigh basic copper carbonate 2g, manganese nitrate 1.5g, cerous nitrate 1.5g, silver nitrate 0.05g, adhesive 50g the most by weight, the above medicine weighed up is sequentially added in kneading machine and is sufficiently mixed, temperature controls at 80 DEG C, the mixability of material is noted at any time in mixed process, after material mixes, material is taken out, quickly putting in four fluid injection press and be shaped, (sample particle diameter is 0.9 to prepare sample
Mm).
2, charring process
Charing is the important stage that activated carbon pore structure is formed.Charing mainly pyrolytic process, gets rid of fugitive constituent and moisture, raising charcoal granule strength in molding mass, forms preliminary hole.Carbonization temperature, body of heater rotating speed etc. also produces impact to the performance of carbonized material.Carbonization condition: charing final temperature 550 DEG C, charing rotating speed 25r/min.
3, activating process
The activation of activated carbon is a process giving carbon activity, makes charcoal form loose structure.Activation is generally divided into two stages: one is the clear hole stage, is purged by the material on carbonized material surface；Two is the reaming stage, is become larger by aperture, or forms new hole.Activation condition: activation temperature 850 DEG C, water vapour amount 4.5ml/min.
Embodiment2
A kind of removal formaldehyde activity charcoal, use coal mass active carbon as carrier framework material, it is loaded with 1%(weight) basic copper carbonate, 0.5%(weight) manganese nitrate, 2%(weight) cerous nitrate, 0.03%(weight) silver nitrate, 45%(weight) adhesive-tar；Wherein, it is 100% calculating with the weight of coal mass active carbon.
The preparation technology of this activated carbon mainly includes moulding process, charring process, activating process, specific as follows:
1, moulding process
Raw material coal (such as 100g) is carried out the abrasive dust of 7 hours, the screen cloth by 180 mesh of the coal dust 95% after mill.Weigh basic copper carbonate 1g, manganese nitrate 0.5g, cerous nitrate 2g, silver nitrate 0.03g, adhesive 45g the most by weight, the above medicine weighed up is sequentially added in kneading machine and is sufficiently mixed, temperature controls at 90 DEG C, the mixability of material is noted at any time in mixed process, after material mixes, material is taken out, quickly putting in four fluid injection press and be shaped, (sample particle diameter is 0.9 to prepare sample
Mm).
2, charring process
Charing is the important stage that activated carbon pore structure is formed.Charing mainly pyrolytic process, gets rid of fugitive constituent and moisture, raising charcoal granule strength in molding mass, forms preliminary hole.Carbonization temperature, body of heater rotating speed etc. also produces impact to the performance of carbonized material.Carbonization condition: charing final temperature 550 DEG C, charing rotating speed 25r/min.
3, activating process
The activation of activated carbon is a process giving carbon activity, makes charcoal form loose structure.Activation is generally divided into two stages: one is the clear hole stage, is purged by the material on carbonized material surface；Two is the reaming stage, is become larger by aperture, or forms new hole.Activation condition: activation temperature 850 DEG C, water vapour amount 4ml/min.
Embodiment3
A kind of removal formaldehyde activity charcoal, use coal mass active carbon as carrier framework material, it is loaded with 0.5%(weight) basic copper carbonate, 3%(weight) manganese nitrate, 1%(weight) cerous nitrate, 0.01%(weight) silver nitrate, 60%(weight) adhesive-tar；Wherein, it is 100% calculating with the weight of coal mass active carbon.
The preparation technology of this activated carbon mainly includes moulding process, charring process, activating process, specific as follows:
1, moulding process
Raw material coal (such as 100g) is carried out the abrasive dust of 7 hours, the screen cloth by 180 mesh of the coal dust 95% after mill.Weigh basic copper carbonate 0.5g, manganese nitrate 3g, cerous nitrate 1g, silver nitrate 0.01g, adhesive 60g the most by weight, the above medicine weighed up is sequentially added in kneading machine and is sufficiently mixed, temperature controls at 100 DEG C, the mixability of material is noted at any time in mixed process, after material mixes, material is taken out, quickly putting in four fluid injection press and be shaped, (sample particle diameter is 0.9 to prepare sample
Mm).
2, charring process
Charing is the important stage that activated carbon pore structure is formed.Charing mainly pyrolytic process, gets rid of fugitive constituent and moisture, raising charcoal granule strength in molding mass, forms preliminary hole.Carbonization temperature, body of heater rotating speed etc. also produces impact to the performance of carbonized material.Carbonization condition: charing final temperature 550 DEG C, charing rotating speed 25r/min.
3, activating process
The activation of activated carbon is a process giving carbon activity, makes charcoal form loose structure.Activation is generally divided into two stages: one is the clear hole stage, is purged by the material on carbonized material surface；Two is the reaming stage, is become larger by aperture, or forms new hole.Activation condition: activation temperature 850 DEG C, water vapour amount 4.5ml/min.
Embodiment4
A kind of removal formaldehyde activity charcoal, use coal mass active carbon as carrier framework material, it is loaded with 1.5%(weight) basic copper carbonate, 2.5%(weight) manganese nitrate, 3%(weight) cerous nitrate, 0.1%(weight) silver nitrate, 55%(weight) adhesive-tar；Wherein, it is 100% calculating with the weight of coal mass active carbon.
The preparation technology of this activated carbon mainly includes moulding process, charring process, activating process, specific as follows:
1, moulding process
Raw material coal (such as 100g) is carried out the abrasive dust of 7 hours, the screen cloth by 180 mesh of the coal dust 95% after mill.Weigh basic copper carbonate 1.5g, manganese nitrate 2.5g, cerous nitrate 3g, silver nitrate 0.1g, adhesive 55g the most by weight, the above medicine weighed up is sequentially added in kneading machine and is sufficiently mixed, temperature controls at 85 DEG C, the mixability of material is noted at any time in mixed process, after material mixes, material is taken out, quickly putting in four fluid injection press and be shaped, (sample particle diameter is 0.9 to prepare sample
Mm).
2, charring process
Charing is the important stage that activated carbon pore structure is formed.Charing mainly pyrolytic process, gets rid of fugitive constituent and moisture, raising charcoal granule strength in molding mass, forms preliminary hole.Carbonization temperature, body of heater rotating speed etc. also produces impact to the performance of carbonized material.Carbonization condition: charing final temperature 550 DEG C, charing rotating speed 25r/min.
3, activating process
The activation of activated carbon is a process giving carbon activity, makes charcoal form loose structure.Activation is generally divided into two stages: one is the clear hole stage, is purged by the material on carbonized material surface；Two is the reaming stage, is become larger by aperture, or forms new hole.Activation condition: activation temperature 850 DEG C, water vapour amount 4.5ml/min.
Embodiment5
A kind of removal formaldehyde activity charcoal, use coal mass active carbon as carrier framework material, it is loaded with 3%(weight) basic copper carbonate, 1%(weight) manganese nitrate, 0.5%(weight) cerous nitrate, 0.04%(weight) silver nitrate, 40%(weight) adhesive-tar；Wherein, it is 100% calculating with the weight of coal mass active carbon.
The preparation technology of this activated carbon mainly includes moulding process, charring process, activating process, specific as follows:
1, moulding process
Raw material coal (such as 100g) is carried out the abrasive dust of 7 hours, the screen cloth by 180 mesh of the coal dust 95% after mill.Weigh basic copper carbonate 3g, manganese nitrate 1g, cerous nitrate 0.5g, silver nitrate 0.07g, adhesive 40g the most by weight, the above medicine weighed up is sequentially added in kneading machine and is sufficiently mixed, temperature controls at 95 DEG C, the mixability of material is noted at any time in mixed process, after material mixes, material is taken out, quickly putting in four fluid injection press and be shaped, (sample particle diameter is 0.9 to prepare sample
Mm).
2, charring process
Charing is the important stage that activated carbon pore structure is formed.Charing mainly pyrolytic process, gets rid of fugitive constituent and moisture, raising charcoal granule strength in molding mass, forms preliminary hole.Carbonization temperature, body of heater rotating speed etc. also produces impact to the performance of carbonized material.Carbonization condition: charing final temperature 550 DEG C, charing rotating speed 25r/min.
3, activating process
The activation of activated carbon is a process giving carbon activity, makes charcoal form loose structure.Activation is generally divided into two stages: one is the clear hole stage, is purged by the material on carbonized material surface；Two is the reaming stage, is become larger by aperture, or forms new hole.Activation condition: activation temperature 850 DEG C, water vapour amount 4ml/min.
Claims (2)
1. the preparation method removing formaldehyde activity charcoal, it is characterised in that: comprise the steps:
(1), moulding process
Raw material coal is carried out the abrasive dust of 7 hours, the coal dust 95% after the mill screen cloth by 180 mesh, weigh basic copper carbonate, manganese nitrate, cerous nitrate, silver nitrate, adhesive the most by weight, wherein, the adhesive of the silver nitrate of the cerous nitrate of the manganese nitrate of basic copper carbonate, 0.5%～3%, 0.5%～3%, 0.01%～0.1%, 40%～60% of 0.5%～3%；Wherein, the weight of basic copper carbonate, manganese nitrate, cerous nitrate, silver nitrate and adhesive is all 100% calculating with the weight of coal dust；
The above medicine weighed up is sequentially added in kneading machine and is sufficiently mixed, temperature controls, at 80～100 DEG C, to note the mixability of material in mixed process at any time, is taken out by material after material mixes, quickly put in four fluid injection press and be shaped, prepare sample；
(2), charring process
Carbonization condition: charing final temperature 550 DEG C, charing rotating speed 25r/min；
(3), activating process
Activation condition: activation temperature 850 DEG C, water vapour amount 4～4.5ml/min；
Therefore, remove formaldehyde activity charcoal and use coal mass active carbon as carrier framework material.
The preparation method of removal formaldehyde activity charcoal the most according to claim 1, it is characterised in that: step (1) weighs 2% basic copper carbonate, the manganese nitrate of 1.5%, the cerous nitrate of 1.5%, the silver nitrate of 0.05%, the adhesive of 50%.
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| CN108704671A (en) * | 2018-05-31 | 2018-10-26 | 安徽科浦环保科技有限公司 | A kind of preparation process efficiently removing formaldehyde activity charcoal |
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