CN102580678B - Inorganic gelling active carbon particle with shell structure and preparation method thereof - Google Patents
Inorganic gelling active carbon particle with shell structure and preparation method thereof Download PDFInfo
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- CN102580678B CN102580678B CN 201210047722 CN201210047722A CN102580678B CN 102580678 B CN102580678 B CN 102580678B CN 201210047722 CN201210047722 CN 201210047722 CN 201210047722 A CN201210047722 A CN 201210047722A CN 102580678 B CN102580678 B CN 102580678B
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Abstract
The invention discloses an inorganic gelling active carbon particle with a shell structure and a preparation method of the inorganic gelling active carbon particle with the shell structure. Active carbon powders and inorganic gelling materials are adopted as main raw materials, and the inorganic gelling active carbon particle is prepared by dosing, inner core forming, jacketing, maintenance and drying process. A thin layer of shell is wrapped on the surface of the active carbon, so that the defects of low active carbon strength, easy fading, difficulty in recovery, easy burning and easy explosion, unattractiveness and the like are overcome, and the inorganic gelling active carbon particle is a multifunctional material capable of purifying water and air, can be widely applied to various fields such as industry and daily life, is attractive and practical, and is convenient to regenerate for use; and meanwhile, the preparation method is simple and easy to implement, the raw material are easy to obtain, and the inorganic gelling active carbon particle does not need to be processed by high temperature, is low in energy consumption and suitable for large-scale production.
Description
Technical field
The invention belongs to new function material and field of compound material, be specifically related to a kind of shell structurre inorganic gel activated carbon granule and preparation method thereof.
Background technology
As a kind of important adsorption functional material, the production of active carbon and application have had the history in more than 100 year.Because pore structure that it is abundant and flourishing specific area, now be widely used in the absorption of liquid and gas, refining, decolouring, separation and catalytic field, significant at aspects such as medicine, environmental protection, food, chemical industry.But active carbon has shape loose, and is inflammable and explosive, intensity is low, easily fades, reclaims shortcomings such as difficulty, existing various pressed active carbon goods, and color is single, fades easily and causes black pollution.
Summary of the invention
The object of the present invention is to provide a kind of shell structurre inorganic gel activated carbon granule and preparation method thereof, it at active carbon is on the core surface of main body, wrap up the shell of one deck inorganic coagulation material equably, make both beautiful and applicable, can purify the multifunctional material of water and air again, the numerous areas of industry and daily life can be widely used in, all very important effect can be brought into play beautifying aspect environment purification.
For achieving the above object, the present invention adopts following technical scheme:
A kind of inside of shell structurre inorganic gel activated carbon granule is the kernel based on active carbon, the shell of appearance parcel one deck inorganic coagulation material.
Described inorganic coagulation material is cement, gypsum or lime; The thickness of described shell is 0.5-1mm.
A kind of preparation method of shell structurre inorganic gel activated carbon granule, adopting active carbon and inorganic coagulation material is primary raw material, makes described shell structurre inorganic gel activated carbon granule through batching, kernel moulding, involucrum, maintenance and dry these steps.
Described preparation method's concrete steps are:
1) batching: active carbon and binding agent are pressed active carbon 60-90wt%, mix after Portland cement 10-40 wt % takes by weighing;
2) kernel moulding: the compound of step 1) is added the water mixing and is twisted into the bead that diameter is 1-2cm;
3) involucrum: with step 2) just rubbed good bead with the hands and placed in the rotating container, equably the shell material has been scattered and sticks on the bead surface of rolling by sieve, be rolled into the surface uniform and smooth till;
4) maintenance: the bead that will wrap shell is placed on the indoor 24-48 of leaving standstill hour, puts into moist container maintenance 7-10 days again;
5) drying: the sample after the maintenance was dried 10-12 hour down in 100-150 ℃.
For attractive in appearance, in inorganic coagulation material, mix various pigment, make colored activated carbon granule; For improving its gas permeability, in inorganic coagulation material, mix diatomite or zeolite.
Benefit of the present invention and superiority are:
1) after the active carbon appearance superscribes the very thin shell of one deck, solved active carbon intensity low, easily fade, difficult reclaim, shortcoming such as inflammable and explosive, not attractive in appearance, be widely used in the purified treatment of water and air, regeneration is handled conveniently.
2) preparation method is simple, and raw material is easy to get, and need not to carry out high-temperature process, and energy consumption is low, is fit to large-scale production.
3) product of the present invention is a kind of multifunctional material that can purify water and air, can be widely used in the numerous areas of industry and daily life, and is both beautiful and practical.
The specific embodiment
(1) batching: mix after active carbon and binding agent taken by weighing by certain proportioning.
(2) kernel: after above-mentioned compound added suitable quantity of water, be twisted into bead.
(3) involucrum: the good bead of above-mentioned firm stranding is placed in the rotating container, equably the shell material is scattered and sticks on the bead surface of rolling by sieve, be rolled into the surface uniform and smooth till.
(4) maintenance: the bead that will wrap shell is placed on after indoor the leaving standstill 24 hours, puts into moist container maintenance again more than 7 days.
(5) drying: the sample after the maintenance is put into oven drying get final product.
Below in conjunction with specific embodiment content of the present invention is specifically described, but the present invention is not limited only to this:
Embodiment 1:
Utilize commercially available activated coco nut charcoal powder, Portland cement to be feedstock production shell structurre inorganic gel activated carbon granule, its kernel composition of raw materials is as follows: cocoanut active charcoal 70%, Portland cement 30%; The incrustation raw material is white cement;
Preparation process:
(1) prepares burden: mix after raw material is taken by weighing by said ratio.
(2) moulding: raw material is poured in the container, added suitable quantity of water, be twisted into diameter one by one and be about little ball about 1cm, as kernel.
(3) involucrum: white cement is placed 250 mesh sieves, slowly be sprinkled on the wetted surface of the roundlet ball kernel that is rolling; Till the white cement on bead surface is uniform and smooth.
(4) maintenance: after the indoor placement 24 hours, put into moist container maintenance again more than 7 days.
(5) drying: the sample after the maintenance is put into 100 ℃ of thermostatic drying chamber dryings, get final product the activated carbon granule goods of appearance white.
Performance test:
(1) iodine sorption value: 475.06mg/g
(2) formaldehyde adsorbance: 212.94mg/g
(3) benzene adsorbance: 179.85mg/g
(4) compression strength: 8.42MPa
Embodiment 2:
Utilize commercially available coal mass active carbon powder, Portland cement to be raw material, preparation shell structurre inorganic gel activated carbon granule.Its kernel composition of raw materials is as follows: coal mass active carbon 80%, Portland cement 20%; Shell material is: Portland cement.
Preparation process:
(1) prepares burden: mix after raw material is taken by weighing by above-mentioned prescription.
(2) moulding: raw material is poured in the container, added suitable quantity of water, be twisted into one by one that diameter is the little ball of 1cm, work as kernel.
(3) involucrum: cement is placed 200 mesh sieves, slowly be sprinkled on the wetted surface of the roundlet ball kernel that is rolling; Till the cement on bead surface is uniform and smooth.
(4) maintenance: after the indoor placement 24 hours, put into moist container maintenance again more than 7 days.
(5) drying: the sample after the maintenance is put into 100 ℃ of thermostatic drying chamber dryings, can obtain the activated carbon granule goods of appearance grey.
Performance test:
(1) iodine sorption value: 510.54mg/g
(2) formaldehyde adsorbance: 207.18 mg/g
(3) benzene adsorbance: 180.08mg/g
(4) compression strength: 6.81MPa
Embodiment 3:
Utilize commercially available activated coco nut charcoal powder, Portland cement as follows for its kernel composition of raw materials of feedstock production shell structurre inorganic gel absorbent charcoal material: cocoanut active charcoal powder 50%, Portland cement 50%; Shell material is: plaster of paris powder;
Preparation process:
(1) prepares burden: mix after raw material is taken by weighing according to the above ratio.
(2) moulding: raw material is poured in the container, added suitable quantity of water, being twisted into one by one, diameter is the little ball of 1cm.
(6) involucrum: gypsum is placed 150 mesh sieves, slowly be sprinkled on the wetted surface of the roundlet ball kernel that is rolling; Till the gypsum on bead surface is uniform and smooth.
(7) maintenance: after the indoor placement 24 hours, put into moist container maintenance again more than 7 days.
(3) drying: the sample after the maintenance is put into 100 ℃ of thermostatic drying chamber dryings, can obtain the activated carbon granule goods of appearance white.
Performance test:
(1) iodine sorption value: 412.69mg/g
(2) formaldehyde adsorbance: 178.50mg/g
(3) benzene adsorbance: 156.89mg/g
(4) compression strength: 14.83MPa
Comparative Examples 1
Utilize commercial sulfuric acid salt cement, commercially available coal mass active carbon powder, building silica sand to be feedstock production active carbon cement composite material, its composition of raw materials is as follows: active carbon 58%, cement 17%, sand 25%; Add water 25%.
Preparation process:
(1) batch mixing: it is standby by 20 mesh sieves to build silica sand earlier.Claim various raw materials by above-mentioned proportioning again, drop in the batch mixer mixing.
(2) add the water granulation: the powder behind the mixing is added an amount of running water continue to mix, cross 30 mesh sieves, obtain a certain size granule powder.
(3) moulding: will place punching block through the powder after the granulation, and be pressed into base substrate with forcing press, place a day.
(4) maintenance: above-mentioned base substrate product after tentatively solidifying were placed in the water maintenance 28 days.
(5) drying: the sample after the maintenance is placed in 110 ℃ the baking oven and dries.
Performance test:
(1) iodine sorption value: 441.73mg/g
(2) formaldehyde adsorption rate: 15.56%
(3) benzene adsorption rate: 19.15%
(4) compression strength: 7.12MPa
Conclusion: under the close prerequisite of intensity, product activity carbon content of the present invention higher (Comparative Examples is 58%, and the present invention is near 80%), adsorptivity stronger (iodine sorption value is 441.73mg/g in the Comparative Examples, and the present invention reaches as high as 510 mg/g).
The above only is preferred embodiment of the present invention, and all equalizations of doing according to the present patent application claim change and modify, and all should belong to covering scope of the present invention.
Claims (2)
1. shell structurre inorganic gel activated carbon granule, it is characterized in that: described granule interior is the kernel based on active carbon, the shell of appearance parcel one deck inorganic coagulation material;
Described inorganic coagulation material is cement, gypsum or lime; The thickness of described shell is 0.5-1mm;
Adopting active carbon and inorganic coagulation material is primary raw material, makes described shell structurre inorganic gel activated carbon granule through batching, kernel moulding, involucrum, maintenance and dry these steps;
Concrete steps are:
1) batching: active carbon and binding agent are pressed active carbon 60-90wt%, mix after Portland cement 10-40 wt % takes by weighing;
2) kernel moulding: the compound of step 1) is added the water mixing and is twisted into the bead that diameter is 1-2cm;
3) involucrum: with step 2) just rubbed good bead with the hands and placed in the rotating container, equably the shell material has been scattered and sticks on the bead surface of rolling by sieve, be rolled into the surface uniform and smooth till;
4) maintenance: the bead that will wrap shell is placed on the indoor 24-48 of leaving standstill hour, puts into moist container maintenance 7-10 days again;
5) drying: the sample after the maintenance was dried 10-12 hour down in 100-150 ℃.
2. shell structurre inorganic gel activated carbon granule according to claim 1 is characterized in that: for attractive in appearance, mix various pigment in inorganic coagulation material, make colored activated carbon granule; For improving its gas permeability, in inorganic coagulation material, mix diatomite or zeolite.
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| CN102836099B (en) * | 2012-09-18 | 2014-01-01 | 曼秀雷敦(中国)药业有限公司 | Activated carbon bead, facial cleanser comprising same and preparation methods thereof |
| CN103143329A (en) * | 2013-03-25 | 2013-06-12 | 福州大学 | Antibiosis silver-loaded shell-structure spherulite activated carbon and preparation method thereof |
| CN106268554A (en) * | 2016-08-16 | 2017-01-04 | 中国石油大学(北京) | A kind of core-shell type MOFs composite particles and its preparation method and application |
| CN106752507A (en) * | 2016-12-06 | 2017-05-31 | 啄木鸟漆业集团有限公司 | A kind of preparation method of anion texture paint |
| CN109731545A (en) * | 2019-03-12 | 2019-05-10 | 太原理工大学 | A kind of forming method of nano molecular sieve |
| CN112138714A (en) * | 2020-09-24 | 2020-12-29 | 大连理工大学 | Rolling sweet-ball-type molded sulfur-resistant low-temperature denitration catalyst and preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101759384A (en) * | 2009-12-30 | 2010-06-30 | 北京工业大学 | Alkaline residue porcelain granule having package structure and manufacturing method thereof |
| CN101941821A (en) * | 2010-08-31 | 2011-01-12 | 福州大学 | Active carbon cement composite material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101759384A (en) * | 2009-12-30 | 2010-06-30 | 北京工业大学 | Alkaline residue porcelain granule having package structure and manufacturing method thereof |
| CN101941821A (en) * | 2010-08-31 | 2011-01-12 | 福州大学 | Active carbon cement composite material and preparation method thereof |
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