CN109534340A - The preparation process of industrial high-efficient acid-resistance gas active charcoal - Google Patents
The preparation process of industrial high-efficient acid-resistance gas active charcoal Download PDFInfo
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- CN109534340A CN109534340A CN201811495132.0A CN201811495132A CN109534340A CN 109534340 A CN109534340 A CN 109534340A CN 201811495132 A CN201811495132 A CN 201811495132A CN 109534340 A CN109534340 A CN 109534340A
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- Prior art keywords
- preparation process
- industrial high
- active charcoal
- resistance gas
- gas active
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- 239000003610 charcoal Substances 0.000 title claims abstract description 37
- 238000002360 preparation method Methods 0.000 title claims abstract description 28
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 34
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 29
- 239000005539 carbonized material Substances 0.000 claims abstract description 14
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 11
- 229910052751 metal Inorganic materials 0.000 claims abstract description 10
- 239000002184 metal Substances 0.000 claims abstract description 10
- 239000011259 mixed solution Substances 0.000 claims abstract description 8
- 150000003839 salts Chemical class 0.000 claims abstract description 8
- 239000000126 substance Substances 0.000 claims abstract description 8
- 235000013162 Cocos nucifera Nutrition 0.000 claims abstract description 7
- 244000060011 Cocos nucifera Species 0.000 claims abstract description 7
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000003830 anthracite Substances 0.000 claims abstract description 7
- 239000010903 husk Substances 0.000 claims abstract description 7
- 238000002156 mixing Methods 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 6
- 238000000227 grinding Methods 0.000 claims abstract description 6
- 238000001125 extrusion Methods 0.000 claims abstract description 4
- 239000000203 mixture Substances 0.000 claims abstract description 4
- 150000001875 compounds Chemical class 0.000 claims abstract description 3
- 238000001994 activation Methods 0.000 claims description 14
- 230000004913 activation Effects 0.000 claims description 13
- 239000004202 carbamide Substances 0.000 claims description 4
- 150000002696 manganese Chemical class 0.000 claims description 4
- 150000003751 zinc Chemical class 0.000 claims description 4
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 claims description 4
- ONDPHDOFVYQSGI-UHFFFAOYSA-N zinc nitrate Chemical compound [Zn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ONDPHDOFVYQSGI-UHFFFAOYSA-N 0.000 claims description 4
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 3
- XTVVROIMIGLXTD-UHFFFAOYSA-N copper(II) nitrate Chemical compound [Cu+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O XTVVROIMIGLXTD-UHFFFAOYSA-N 0.000 claims description 3
- OQVYMXCRDHDTTH-UHFFFAOYSA-N 4-(diethoxyphosphorylmethyl)-2-[4-(diethoxyphosphorylmethyl)pyridin-2-yl]pyridine Chemical compound CCOP(=O)(OCC)CC1=CC=NC(C=2N=CC=C(CP(=O)(OCC)OCC)C=2)=C1 OQVYMXCRDHDTTH-UHFFFAOYSA-N 0.000 claims description 2
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 239000012286 potassium permanganate Substances 0.000 claims description 2
- 235000005074 zinc chloride Nutrition 0.000 claims description 2
- 239000011592 zinc chloride Substances 0.000 claims description 2
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims description 2
- 229960001763 zinc sulfate Drugs 0.000 claims description 2
- 229910000368 zinc sulfate Inorganic materials 0.000 claims description 2
- 229920000877 Melamine resin Polymers 0.000 claims 1
- 239000003513 alkali Substances 0.000 claims 1
- 150000001879 copper Chemical class 0.000 claims 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims 1
- 238000001179 sorption measurement Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 230000000149 penetrating effect Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000003763 carbonization Methods 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- -1 urea Compound Chemical class 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/30—Active carbon
- C01B32/312—Preparation
- C01B32/318—Preparation characterised by the starting materials
- C01B32/324—Preparation characterised by the starting materials from waste materials, e.g. tyres or spent sulfite pulp liquor
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/30—Active carbon
- C01B32/312—Preparation
- C01B32/336—Preparation characterised by gaseous activating agents
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/30—Active carbon
- C01B32/312—Preparation
- C01B32/342—Preparation characterised by non-gaseous activating agents
- C01B32/348—Metallic compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
This application discloses a kind of preparation processes of industrial high-efficient acid-resistance gas active charcoal.The preparation process of the industrial high-efficient acid-resistance gas active charcoal, the specific steps of which are as follows: (1), grinding mixing: taking coconut husk carbonized material charcoal, shell carbonized material and anthracite burgy after grinding, be put into ground and mixed in ball mill after addition pitch and obtain powdered carbon；(2), pure water, alkaline metal salt and Ammonia substance proportionally Compound mixed solution: are uniformly mixed to obtain mixed liquor；(3), it forms: powdered carbon is added in batch mixer, mixed solution is added, mix extrusion forming after half an hour, naturally dry obtains carbon block；(4), it carbonizes: by carbon block charing process；(5), it activates: the carbon block after charing is activated.Active carbon, which is made, in the preparation process of the industrial high-efficient acid-resistance gas active charcoal does not have penetrating odor, has the characteristics that intensity is high, adsorption capacity is strong, adsorption capacity is big, ash content is few, the rate of adsorption is fast, guard time is long, protection effect is good, the protection service life is long.
Description
Technical field
The present invention relates to Air Pollution Control skill fields, more particularly to a kind of industrial high-efficient acid-resistance gas active charcoal
Preparation process.
Background technique
Active carbon is applied in many fields, especially with the porous mass of very excellent filtration performance
In environment protection field, whether purified water or air is purified, it all becomes current leading role.In the prior art often with excellent
Activated carbon is raw material, then dipping drug carries out activation drying, is easy to produce penetrating odor, and adsorption capacity is poor.
Summary of the invention
It is existing to overcome the purpose of the present invention is to provide a kind of preparation process of industrial high-efficient acid-resistance gas active charcoal
Deficiency in technology.
To achieve the above object, the invention provides the following technical scheme:
The embodiment of the present application discloses a kind of preparation process of industrial high-efficient acid-resistance gas active charcoal, and specific steps are such as
Under: (1) it, grinds mixing: taking coconut husk carbonized material charcoal, shell carbonized material and anthracite burgy after grinding, be put into after pitch is added
Ground and mixed obtains powdered carbon in ball mill；(2), Compound mixed solution: pure water, alkaline metal salt and Ammonia substance are proportionally mixed
It is uniform to obtain mixed liquor；(3), it forms: powdered carbon is added in batch mixer, mixed solution is added, mix extrusion forming after half an hour, from
So dry to obtain carbon block；(4), it carbonizes: by carbon block charing process；(5), it activates: will be activated in the carbon block investment activation furnace after charing
Processing.
Preferably, in the preparation process of above-mentioned industrial high-efficient acid-resistance gas active charcoal, in step (1) in step (1)
The coconut husk carbonized material charcoal, shell carbonized material, anthracite burgy and pitch ratio be 1:0.5:0.5:0.6.
Preferably, in the preparation process of above-mentioned industrial high-efficient acid-resistance gas active charcoal, ground and mixed in step (1)
Time is no less than 2h.
Preferably, in the preparation process of above-mentioned industrial high-efficient acid-resistance gas active charcoal, pure water described in step (2),
The ratio of alkaline metal salt and Ammonia substance is 100:1:1.
Preferably, in the preparation process of above-mentioned industrial high-efficient acid-resistance gas active charcoal, the alkaline metal salt includes
Mantoquita, zinc salt and manganese salt.
Preferably, in the preparation process of above-mentioned industrial high-efficient acid-resistance gas active charcoal, the mantoquita includes copper nitrate
And copper sulphate, the zinc salt include zinc sulfate, zinc chloride and zinc nitrate, the manganese salt includes potassium permanganate and potassium manganate.
Preferably, in the preparation process of above-mentioned industrial high-efficient acid-resistance gas active charcoal, powdered carbon described in step (3) and
Ratio 1:0.3~0.35 of mixed liquor butt.
Preferably, in the preparation process of above-mentioned industrial high-efficient acid-resistance gas active charcoal, charing described in step (4)
Temperature is 300-700 DEG C, and the time of charing is 10-120min.
Preferably, in the preparation process of above-mentioned industrial high-efficient acid-resistance gas active charcoal, the temperature of step (5) described activation
Degree is 800-1000 DEG C, and flow rates are 1-50L/min in the activation furnace, and the time of the activation is 1-5h.
Compared with the prior art, the advantages of the present invention are as follows: the preparation process of the industrial high-efficient acid-resistance gas active charcoal
It has overturned in the past using high grade activated carbon as raw material, then dipping drug carries out the traditional idea of activation drying, but in molding rank
Appropriate alkaline metal salt is added in section, utilizes the work that alkalinous metal is carried out the characteristics of needing high temperature in carbonization and activation process
Change, reduces procedure of processing, effectively reduce cost；Meanwhile the Ammonias substance such as suitable urea is mixed into formative stage, thus it is possible to vary
Active carbon structure of functional groups increases the content of basic functionality, further strengthens acid gas protection effect.
Specific embodiment
The present invention is described further by the following example: according to following embodiments, the present invention may be better understood.
However, as it will be easily appreciated by one skilled in the art that specific material ratio, process conditions and its result described in embodiment are only used
In illustrating the present invention, without the present invention described in detail in claims should will not be limited.
Embodiment
The preparation process of industrial high-efficient acid-resistance gas active charcoal described in the specific embodiment of the invention the following steps are included:
1) it, grinds mixing: taking coconut husk carbonized material charcoal, shell carbonized material and anthracite burgy after grinding, wherein be put into after pitch is added
Ground and mixed 2h obtains powdered carbon in ball mill, coconut husk carbonized material charcoal, shell carbonized material, anthracite burgy and pitch ratio be 1:
0.5:0.5:0.6；(2), pure water, copper nitrate and urea Compound mixed solution: are uniformly mixed to obtain mixing according to the ratio of 100:1:1
Liquid；(3), it forms: powdered carbon is added in batch mixer, the mixed solution that butt is 30% powdered carbon is slowly added to, after mixing half an hour
Extrusion forming, naturally dry obtain carbon block；(4), it carbonizes: by carbon block in 500 DEG C of charing 50min；(5), it activates: by the charcoal after charing
It is activated 3h in the activation furnace of 900 DEG C of block investment, obtains finished product, wherein flow rates are 25L/min in activation furnace.
In conclusion being mixed into difference during the preparation process active carbon forming of the industrial high-efficient acid-resistance gas active charcoal
The raw material of material, after carbonization and activation, product aperture structure can take into account each material property, can fine memory hole
The collocation of gauge structure；Can change active carbon primary tube under high temperature environment in the Ammonias such as formative stage urea substance simultaneously can roll into a ball
Structure can effectively increase its alkaline functional structure, conducive to the absorption to sour gas；In addition, alkalinous metal is added in molding
Afterwards, be evenly distributed in active carbon, and active carbon gap will not be blocked, be more favorable for active carbon to the absorption of alkaline gas with
And diffusion；Production cost not only can be effectively reduced in the technique, and is more favorable for protection of the active carbon to sour gas.
Here, it should also be noted that, in order to avoid having obscured the present invention because of unnecessary details, in embodiment only
Illustrate only with closely related structure and/or processing step according to the solution of the present invention, and be omitted with relationship of the present invention not
Big other details.
Finally, it is to be noted that, the terms "include", "comprise" or its any other variant be intended to it is non-exclusive
Property include so that include a series of elements process, method, article or equipment not only include those elements, but also
Further include other elements that are not explicitly listed, or further include for this process, method, article or equipment it is intrinsic
Element.
Claims (9)
1. a kind of preparation process of industrial high-efficient acid-resistance gas active charcoal, it is characterised in that specific step is as follows: (1), grinding
Mixing: coconut husk carbonized material charcoal, shell carbonized material and anthracite burgy after grinding are taken, is put into ball mill and grinds after addition pitch
Mix to obtain powdered carbon；(2), pure water, alkaline metal salt and Ammonia substance proportionally Compound mixed solution: are uniformly mixed to obtain to mixing
Liquid；(3), it forms: powdered carbon is added in batch mixer, mixed solution is added, mix extrusion forming after half an hour, naturally dry obtains charcoal
Block；(4), it carbonizes: by carbon block charing process；(5), it activates: will be activated in the carbon block investment activation furnace after charing.
2. the preparation process of industrial high-efficient acid-resistance gas active charcoal according to claim 1, it is characterised in that: step
(1) charcoal of coconut husk carbonized material described in, shell carbonized material, anthracite burgy and pitch ratio be 1:0.5:0.5:0.6.
3. the preparation process of industrial high-efficient acid-resistance gas active charcoal according to claim 1, it is characterised in that: step
(1) time of ground and mixed is no less than 2h in.
4. the preparation process of industrial high-efficient acid-resistance gas active charcoal according to claim 1, it is characterised in that: step
(2) ratio of pure water described in, alkaline metal salt and Ammonia substance is 100:1:1.
5. the preparation process of industrial high-efficient acid-resistance gas active charcoal according to claim 4, it is characterised in that: the alkali
Property metal salt includes mantoquita, zinc salt and manganese salt, and the Ammonia substance includes urea and melamine.
6. the preparation process of industrial high-efficient acid-resistance gas active charcoal according to claim 5, it is characterised in that: the copper
Salt includes copper nitrate and copper sulphate, and the zinc salt includes zinc sulfate, zinc chloride and zinc nitrate, the manganese salt include potassium permanganate and
Potassium manganate.
7. the preparation process of industrial high-efficient acid-resistance gas active charcoal according to claim 1, it is characterised in that: step
(3) ratio 1:0.3~0.35 of powdered carbon described in and mixed liquor butt.
8. the preparation process of industrial high-efficient acid-resistance gas active charcoal according to claim 1, it is characterised in that: step
(4) temperature of charing described in is 300-700 DEG C, and the time of charing is 10-120min.
9. the preparation process of industrial high-efficient acid-resistance gas active charcoal according to claim 1, it is characterised in that: step
(5) temperature of the activation is 800-1000 DEG C, and flow rates are 1-50L/min in the activation furnace, the activation when
Between be 1-5h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811495132.0A CN109534340A (en) | 2018-12-07 | 2018-12-07 | The preparation process of industrial high-efficient acid-resistance gas active charcoal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811495132.0A CN109534340A (en) | 2018-12-07 | 2018-12-07 | The preparation process of industrial high-efficient acid-resistance gas active charcoal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109534340A true CN109534340A (en) | 2019-03-29 |
Family
ID=65854418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811495132.0A Pending CN109534340A (en) | 2018-12-07 | 2018-12-07 | The preparation process of industrial high-efficient acid-resistance gas active charcoal |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110156013A (en) * | 2019-05-13 | 2019-08-23 | 北京化工大学 | A method for making pores on the surface of activated carbon |
| CN111646470A (en) * | 2020-06-17 | 2020-09-11 | 宁夏浦士达环保科技有限公司 | Ammonia-free acid gas-resistant activated carbon and preparation method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104916452A (en) * | 2015-04-21 | 2015-09-16 | 中国林业科学研究院林产化学工业研究所 | Wooden active carbon composite material for super capacitor and preparing method of wooden activated carbon composite material |
| US20160115116A1 (en) * | 2014-10-27 | 2016-04-28 | Hyundai Motor Company | Active carbon and method for preparation of the same |
| CN106984267A (en) * | 2017-03-23 | 2017-07-28 | 青岛科技大学 | A kind of preparation method of the N doping carbon adsorbent of CO absorption 2 |
| CN107265452A (en) * | 2017-06-22 | 2017-10-20 | 江苏浦士达环保科技股份有限公司 | A kind of preparation method of coconut husk spherical carbon |
| CN107352540A (en) * | 2017-08-29 | 2017-11-17 | 中国科学院城市环境研究所 | A kind of hydro-thermal method prepares the method and its device of Supported Manganese oxide active charcoal |
| CN107572518A (en) * | 2016-07-04 | 2018-01-12 | 现代自动车株式会社 | Method for preparing activated carbon |
| CN108031252A (en) * | 2017-12-25 | 2018-05-15 | 衢州南高峰化工股份有限公司 | A kind of production technology of the metal oxide supported tail gas desulfurization of phenolic resin-based activated carbon containing borosilicate agent for hydrogen fluoride production |
-
2018
- 2018-12-07 CN CN201811495132.0A patent/CN109534340A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160115116A1 (en) * | 2014-10-27 | 2016-04-28 | Hyundai Motor Company | Active carbon and method for preparation of the same |
| CN104916452A (en) * | 2015-04-21 | 2015-09-16 | 中国林业科学研究院林产化学工业研究所 | Wooden active carbon composite material for super capacitor and preparing method of wooden activated carbon composite material |
| CN107572518A (en) * | 2016-07-04 | 2018-01-12 | 现代自动车株式会社 | Method for preparing activated carbon |
| CN106984267A (en) * | 2017-03-23 | 2017-07-28 | 青岛科技大学 | A kind of preparation method of the N doping carbon adsorbent of CO absorption 2 |
| CN107265452A (en) * | 2017-06-22 | 2017-10-20 | 江苏浦士达环保科技股份有限公司 | A kind of preparation method of coconut husk spherical carbon |
| CN107352540A (en) * | 2017-08-29 | 2017-11-17 | 中国科学院城市环境研究所 | A kind of hydro-thermal method prepares the method and its device of Supported Manganese oxide active charcoal |
| CN108031252A (en) * | 2017-12-25 | 2018-05-15 | 衢州南高峰化工股份有限公司 | A kind of production technology of the metal oxide supported tail gas desulfurization of phenolic resin-based activated carbon containing borosilicate agent for hydrogen fluoride production |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110156013A (en) * | 2019-05-13 | 2019-08-23 | 北京化工大学 | A method for making pores on the surface of activated carbon |
| CN111646470A (en) * | 2020-06-17 | 2020-09-11 | 宁夏浦士达环保科技有限公司 | Ammonia-free acid gas-resistant activated carbon and preparation method thereof |
| CN111646470B (en) * | 2020-06-17 | 2023-10-20 | 宁夏浦士达环保科技有限公司 | Ammonia-free acid gas prevention active carbon and preparation method thereof |
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Application publication date: 20190329 |
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