CN107792853A - A kind of high intensity granular activated carbon for liquid phase desorption and preparation method thereof - Google Patents
A kind of high intensity granular activated carbon for liquid phase desorption and preparation method thereof Download PDFInfo
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Abstract
The present invention relates to activated carbon preparation field, and in particular to a kind of high intensity granular activated carbon for liquid phase desorption and preparation method thereof, the preparation method comprises the following steps：Step 1, activated carbon raw material carbonized；Step 2, carbide soaked in mixed liquor, then dry the immersion carbide after must soaking, then activated the immersion carbide, pickling, washing are dried and to obtain just processing activated carbon；Step 3, first processing activated carbon, acrylic emulsion and water obtained by step 2 are stirred and smash to obtain mixture；Step 4, the mixture extrusion forming as obtained by granulator by step 3, granulation, high intensity granular activated carbon is obtained after drying.Beneficial effect of the present invention：Using mixed liquor as catalyst, not only decoloration performance is significantly improved, and its intensity also greatly enhances, while can be acidproof for a long time, and through overpickling, washing, drying, can reuse, and regeneration efficiency is high, economizes on resources and production cost.
Description
Technical field
The present invention relates to activated carbon preparation field, and in particular to it is a kind of for liquid phase desorption high intensity granular activated carbon and
Its preparation method.
Background technology
Activated carbon has excellent physics and chemical stability, flourishing pore structure and high adsorption capacity, extensive
Applied to relevant industries such as food, chemical industry, environmental protection, pharmacy and new energy.
The production method of liquid phase Detachment Activity charcoal is many at present, including：1) by wood chip and chemicals for example phosphoric acid plasticizing into
Charcoal is carried out after type again to activate to obtain wooden pressed active carbon；2) activated carbon of function admirable is done again plus binding agent extrusion forming
It is dry to obtain granular activated carbon, 1) proportion of the phosphoric acid method powdered activated carbon in all activated carbons made of kind method it is most light,
Specific surface area is maximum, and aperture, pore volume are flourishing, have the molecule in abundant large, medium and small aperture, decoloring ability is good, but intensity is not
Good and acid-fast alkali-proof ability and regeneration are difficult, and activated carbon is disposable just to be scrapped, and consuming is larger, and are lived launching powdery
Property charcoal when, dust is more, and working environment is severe, and employee work intensity is big, the 2) plant method mainly with Physical powdered activated carbon into
Type uses as handicraft.And the above method forms the carbon atom plane layer of activated carbon in a jumble and is arranged in " spiral shell at random
Layer structure ", and be combined with each other with molecular separating force, therefore, the abrasivity of activated carbon, compressive resistance are all very poor.
The content of the invention
The technical problems to be solved by the invention are：A kind of ability and tool with stronger removing macromolecular pigment are provided
High intensity granular activated carbon for being used for liquid phase desorption of standby higher-strength and preparation method thereof.
The technical scheme is that provide a kind of preparation method bag of the high intensity granular activated carbon for liquid phase desorption
Include following steps：
Step 1, completely cut off air in 300-350 degree heating 4-6 hours after activated carbon raw material is crushed, obtain carbide；
Step 2, step 1 gained carbide soaked in mixed liquor, then dry the immersion carbide after must soaking, so
The immersion carbide is activated afterwards, pickling, washing are dried and to obtain just processing activated carbon；The mixed liquor is by 100 parts of water, 3-
5 parts of phosphoric acid, 6-10 parts sodium hydroxide, 3-5 parts magnesium chloride, 5-8 part zinc chloride mix；
Step 3, activated carbon, acrylic emulsion and water will be just handled obtained by step 2, by 3: 8-10: 8-10 weight than claiming
Take and stir and smash to obtain mixture, the acrylic emulsion water content is 25%-30%；
Step 4, the mixture extrusion forming as obtained by granulator by step 3, granulation, high intensity seed activity is obtained after drying
Charcoal.
The present invention another technical scheme be：A kind of above-mentioned high intensity granular activated carbon for being used for liquid phase desorption is provided
High intensity granular activated carbon prepared by preparation method.
Beneficial effect of the present invention：The present invention, which is used for high intensity granular activated carbon of liquid phase desorption and preparation method thereof, to be had such as
Lower advantage：(1) mixed liquor is used as catalyst, and not only decoloration performance is significantly improved, and its intensity also greatly enhances, while energy
Acidproof for a long time, and through overpickling, washing, drying, can reuse, regeneration efficiency is high, economizes on resources and production cost；
(2) there is certain shape, and be easy to modulation and processing, launch, without dust pollution during production and use, substantially improve
Production environment, the labor intensity of worker is reduced, without the pollutant emission problem such as waste water,waste gas and industrial residue, clean environment firendly is without dirt
Dye；(3) granular activated carbon that absorption property is good, unit volume adsorbance is far above other classifications；(4) acrylic emulsion is used
It is to there is preferable bonding effect, reaches the intensity of granular activated carbon, and do not shut activated carbon hole too much.(5) store, transport
Defeated convenience, while be also easy to be recovered by filtration.
Embodiment
To describe the technology contents of the present invention, construction feature, the objects and the effects in detail, below in conjunction with embodiment
It is explained in detail.
The design of most critical of the present invention is：The present invention is used for the preparation method of the high intensity granular activated carbon of liquid phase desorption
Using mixed liquor as catalyst, not only decoloration performance is significantly improved, and its intensity also greatly enhances.
The present invention provides a kind of preparation method of the high intensity granular activated carbon for liquid phase desorption, comprises the following steps：
Step 1, completely cut off air in 300-350 degree heating 4-6 hours after activated carbon raw material is crushed, obtain carbide；
Step 2, step 1 gained carbide soaked into 5-8 hours in mixed liquor, then dry the immersion charcoal after must soaking
Compound, then the immersion carbide is activated, pickling, washing are dried and to obtain just processing activated carbon；The mixed liquor is by 100
Part water, 3-5 parts phosphoric acid, 6-10 parts sodium hydroxide, 3-5 parts magnesium chloride and 5-8 part zinc chloride mix；
Step 3, activated carbon, acrylic emulsion and water will be just handled obtained by step 2, by 3: 8-10: 8-10 weight than claiming
Take and stir and smash to obtain mixture, the acrylic emulsion water content is 25%-30%；
Step 4, the mixture extrusion forming as obtained by granulator by step 3, granulation, high intensity seed activity is obtained after drying
Charcoal.
The preparation method of the above-mentioned high intensity granular activated carbon for liquid phase desorption has the following advantages that (1) uses mixed liquor
As catalyst, not only decoloration performance is significantly improved, and its intensity also greatly enhances, while can be acidproof for a long time, and passes through
Pickling, washing, drying, it can reuse, regeneration efficiency is high, economizes on resources and production cost；(2) there is certain shape,
And be easy to modulation and processing, launch, without dust pollution during production and use, production environment is substantially improved, reduces work
The labor intensity of people, without the pollutant emission problem such as waste water,waste gas and industrial residue, clean environment firendly is pollution-free；(3) absorption property it is good,
The adsorbance of unit volume is far above the granular activated carbon of other classifications；(4) it is preferably viscous in order to have using acrylic emulsion
Effect is closed, reaches the intensity of granular activated carbon, and do not shut activated carbon hole too much.(5) storage, convenient transportation, at the same it is also easy
In being recovered by filtration.
Preferably, in the preparation method of the above-mentioned high intensity granular activated carbon for being used for liquid phase desorption, in the step 2
Activation is specially：The immersion carbide is passed through vapours activation process 6-8 hours at a temperature of 700-800.
Preferably, in the preparation method of the above-mentioned high intensity granular activated carbon for being used for liquid phase desorption, in the step 2
Pickling is specially：The chlorohydric acid pickling for being 5-10% with Solute mass fraction.
Preferably, in the preparation method of the above-mentioned high intensity granular activated carbon for being used for liquid phase desorption, in the step 2
" washing drying " is specially：It is washed at a temperature of neutral, 300-350 degree and dries 1-2 hours.
Preferably, in the preparation method of the above-mentioned high intensity granular activated carbon for being used for liquid phase desorption, the step 4 is specific
For：The mixture extrusion forming as obtained by granulator by step 3,2~5mm of particle diameter particle is made, will be cooled down by drying machine
Granular activated carbon afterwards dries 20-25 minutes at a temperature of being placed in 170-180 degree, and obtain moisture content after drying obtains for 9%~10%
High intensity granular activated carbon.
Preferably, in the preparation method of the above-mentioned high intensity granular activated carbon for being used for liquid phase desorption, the mixed liquor by
100 parts of water, 4 parts of phosphoric acid, 8 parts of sodium hydroxides, 4 parts of magnesium chlorides and 7 parts of zinc chloride mix.
Preferably, in the preparation method of the above-mentioned high intensity granular activated carbon for being used for liquid phase desorption, the activated carbon is former
Expect for wood chip.
Another technical scheme of the present invention is a kind of system of the above-mentioned high intensity granular activated carbon for liquid phase desorption of offer
High intensity granular activated carbon prepared by Preparation Method.
Embodiment 1
A kind of preparation method of high intensity granular activated carbon for liquid phase desorption, comprises the following steps：
Step 1, by wood chip it is broken after completely cut off air in 330 degree heating 5 hours, obtain carbide；
Step 2, step 1 gained carbide soaked 7 hours in mixed liquor, then dry the charing of the immersion after must soaking
Thing, then the immersion carbide is activated, pickling, washing are dried and to obtain just processing activated carbon；The mixed liquor is by 100 parts
Water, 4 parts of phosphoric acid, 8 parts of sodium hydroxides, 4 parts of magnesium chlorides and 7 parts of zinc chloride mix；The activation is specially：By the immersion
Carbide is passed through vapours activation process 6-8 hours at a temperature of 700-800.The pickling is specially：Use Solute mass fraction
For 7% chlorohydric acid pickling." the washing drying " is specially：Be washed to it is neutral, dry 2 hours at a temperature of 330 degree.
Step 3, activated carbon, acrylic emulsion and water will be just handled obtained by step 2, weighed and stirred by 3: 8: 8 weight ratio
Mix and smash to obtain mixture, the acrylic emulsion water content is 25%；
Step 4, the mixture extrusion forming as obtained by granulator by step 3, are made particle diameter 5mm particle, pass through drying
Machine is dried 20 minutes at a temperature of the granular activated carbon after cooling is placed in into 170 degree, and obtain moisture content after drying obtains high intensity for 9%
Granular activated carbon.
Embodiment 2
A kind of preparation method of high intensity granular activated carbon for liquid phase desorption, comprises the following steps：
Step 1, by activated carbon raw material it is broken after completely cut off air in 300 degree heating 4 hours, obtain carbide；
Step 2, step 1 gained carbide soaked 5 hours in mixed liquor, then dry the charing of the immersion after must soaking
Thing, then the immersion carbide is activated, pickling, washing are dried and to obtain just processing activated carbon；The mixed liquor is by 100 parts
Water, 3 parts of phosphoric acid, 6 parts of sodium hydroxides, 3 parts of magnesium chlorides and 5 parts of zinc chloride mix；The activation is specially：By the immersion
Carbide is passed through vapours activation process 8 hours at a temperature of 700.The pickling is specially：It is 5% with Solute mass fraction
Chlorohydric acid pickling." the washing drying " is specially：Be washed to it is neutral, dry 1 hour at a temperature of 300 degree.
Step 3, activated carbon, acrylic emulsion and water will be just handled obtained by step 2, weighed and stirred by 3: 8: 8 weight ratio
Mix and smash to obtain mixture, the acrylic emulsion water content is 25%；
Step 4, the mixture extrusion forming as obtained by granulator by step 3, are made particle diameter 2mm particle, pass through drying
Machine is dried 20 minutes at a temperature of the granular activated carbon after cooling is placed in into 170 degree, and obtain moisture content after drying obtains high intensity for 9%
Granular activated carbon.
Embodiment 3
A kind of preparation method of high intensity granular activated carbon for liquid phase desorption, comprises the following steps：
Step 1, by activated carbon raw material it is broken after completely cut off air in 350 degree heating 6 hours, obtain carbide；
Step 2, step 1 gained carbide soaked 8 hours in mixed liquor, then dry the charing of the immersion after must soaking
Thing, then the immersion carbide is activated, pickling, washing are dried and to obtain just processing activated carbon；The mixed liquor is by 100 parts
Water, 5 parts of phosphoric acid, 10 parts of sodium hydroxides, 5 parts of magnesium chlorides and 8 parts of zinc chloride mix；The activation is specially：By the leaching
Bubble carbide is passed through vapours activation process 8 hours at a temperature of 800.The pickling is specially：It is with Solute mass fraction
10% chlorohydric acid pickling." the washing drying " is specially：Be washed to it is neutral, dry 2 hours at a temperature of 350 degree.
Step 3, activated carbon, acrylic emulsion and water will be just handled obtained by step 2, weighed simultaneously by 3: 10: 10 weight ratio
Mixture is smashed to obtain in stirring, and the acrylic emulsion water content is 30%；
Step 4, the mixture extrusion forming as obtained by granulator by step 3, are made particle diameter 5mm particle, pass through drying
Granular activated carbon after cooling is placed at a temperature of 180 degree and dried 25 minutes by machine, after drying moisture content be 10% it is high-strength
Spend granular activated carbon.
High intensity particle is made in the preparation method of the high intensity granular activated carbon for being used for liquid phase desorption of above-described embodiment
Activated carbon carries out iodine sorption value, mechanical strength and caramel and decolourizes to test, as a result such as table 1 below：
Table 1
Embodiments of the invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this hair
The equivalent structure or equivalent flow conversion that bright specification is made, or other related technical areas are directly or indirectly used in,
Similarly it is included within the scope of the present invention.
Claims (8)
1. the preparation method of a kind of high intensity granular activated carbon for liquid phase desorption, it is characterised in that comprise the following steps：
Step 1, completely cut off air in 300-350 degree heating 4-6 hours after activated carbon raw material is crushed, obtain carbide；
Step 2, step 1 gained carbide soaked into 5-8 hours in mixed liquor, then dry the charing of the immersion after must soaking
Thing, then the immersion carbide is activated, pickling, washing are dried and to obtain just processing activated carbon；The mixed liquor is by 100 parts
Water, 3-5 parts phosphoric acid, 6-10 parts sodium hydroxide, 3-5 parts magnesium chloride and 5-8 part zinc chloride mix；
Step 3, activated carbon, acrylic emulsion and water will be just handled obtained by step 2, weighed simultaneously by 3: 8-10: 8-10 weight ratio
Mixture is smashed to obtain in stirring, and the acrylic emulsion water content is 25%-30%；
Step 4, the mixture extrusion forming as obtained by granulator by step 3, granulation, high intensity granular activated carbon is obtained after drying.
2. the preparation method of the high intensity granular activated carbon according to claim 1 for liquid phase desorption, it is characterised in that
Activation in the step 2 is specially：The immersion carbide is passed through vapours activation process 6-8 at a temperature of 700-800
Hour.
3. the preparation method of the high intensity granular activated carbon according to claim 1 for liquid phase desorption, it is characterised in that
Pickling in the step 2 is specially：The chlorohydric acid pickling for being 5-10% with Solute mass fraction.
4. the preparation method of the high intensity granular activated carbon according to claim 1 for liquid phase desorption, it is characterised in that
" washing drying " in the step 2 is specially：It is washed at a temperature of neutral, 300-350 degree and dries 1-2 hours.
5. the preparation method of the high intensity granular activated carbon according to claim 1 for liquid phase desorption, it is characterised in that
The step 4 is specially：The mixture extrusion forming as obtained by granulator by step 3, is made 2~5mm of particle diameter particle, passes through
Drying machine dries 20-25 minutes at a temperature of the granular activated carbon after cooling is placed in into 170-180 degree, and obtaining moisture content after drying is
9%~10% obtains high intensity granular activated carbon.
6. the preparation method of the high intensity granular activated carbon according to claim 1 for liquid phase desorption, it is characterised in that
The mixed liquor is mixed by 100 parts of water, 4 parts of phosphoric acid, 8 parts of sodium hydroxides, 4 parts of magnesium chlorides and 7 parts of zinc chloride.
7. the preparation method of the high intensity granular activated carbon according to claim 1 for liquid phase desorption, it is characterised in that
The activated carbon raw material is wood chip.
8. prepared by the preparation method of the high intensity granular activated carbon for being used for liquid phase desorption of any one of claim 1-7 claim
High intensity granular activated carbon.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108439403A (en) * | 2018-06-12 | 2018-08-24 | 中国林业科学研究院林产化学工业研究所 | A kind of method that low-temperature prewarming solution, raw material fine prepare biomass moulding activated carbon |
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| CN101054176A (en) * | 2007-03-09 | 2007-10-17 | 朝阳森塬活性炭有限公司 | Granule decoloration active carbon and preparation method thereof |
| CN103754868A (en) * | 2013-12-25 | 2014-04-30 | 湖南凯丰活性炭环保科技有限公司 | Preparation method and application method of granular activated carbon for xylose decoloring |
| CN103936006A (en) * | 2014-04-21 | 2014-07-23 | 北京理工大学 | Method for preparing porous activated carbon material from rice bran |
| CN107128916A (en) * | 2017-04-21 | 2017-09-05 | 句容市盛达环保净化材料有限公司 | A kind of sugar industry activated carbon |
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2017
- 2017-11-28 CN CN201711215827.4A patent/CN107792853A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101054176A (en) * | 2007-03-09 | 2007-10-17 | 朝阳森塬活性炭有限公司 | Granule decoloration active carbon and preparation method thereof |
| CN103754868A (en) * | 2013-12-25 | 2014-04-30 | 湖南凯丰活性炭环保科技有限公司 | Preparation method and application method of granular activated carbon for xylose decoloring |
| CN103936006A (en) * | 2014-04-21 | 2014-07-23 | 北京理工大学 | Method for preparing porous activated carbon material from rice bran |
| CN107128916A (en) * | 2017-04-21 | 2017-09-05 | 句容市盛达环保净化材料有限公司 | A kind of sugar industry activated carbon |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108439403A (en) * | 2018-06-12 | 2018-08-24 | 中国林业科学研究院林产化学工业研究所 | A kind of method that low-temperature prewarming solution, raw material fine prepare biomass moulding activated carbon |
| CN108439403B (en) * | 2018-06-12 | 2021-08-17 | 中国林业科学研究院林产化学工业研究所 | Method for preparing biomass-formed activated carbon by low-temperature pre-pyrolysis and superfine raw materials |
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