CN103643351A - Method for producing active carbon fiber in salt dip pretreatment mode - Google Patents
Method for producing active carbon fiber in salt dip pretreatment mode Download PDFInfo
- Publication number
- CN103643351A CN103643351A CN201310669896.8A CN201310669896A CN103643351A CN 103643351 A CN103643351 A CN 103643351A CN 201310669896 A CN201310669896 A CN 201310669896A CN 103643351 A CN103643351 A CN 103643351A
- Authority
- CN
- China
- Prior art keywords
- raw material
- salt pretreatment
- salt
- solution
- carbon fiber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
The invention discloses a method for producing an active carbon fiber in a salt dip pretreatment mode. The method comprises the following steps: cutting and flattening a viscose fiber (felt or cloth) as a raw material, subsequently performing three times of continuous salt dip pretreatment, namely spraying and dipping the viscose fiber into a 7-8% (NH4)2HPO3 solution, a 6-7% (NH4)2HPO3 solution and 5-6% of (NH4)2HPO3 solution in a salt dip pretreatment device under the condition of 40-60 DEG C, after dipping, dehydrating and drying by using an extruder, subsequently drying in a wind type drier, and finally settling and rolling the dried raw material and continuously performing a carbonization process on the dried raw material to be carbonize the dried raw material. By adopting the method disclosed by the invention, not only can the raw material be uniformly and sufficiently dipped, but also the concentration of the (NH4)2HPO3 solution is not diluted, the weight is increased, and moisture is not carried away, so that a prepared product is low in moisture content, high in carbon content, high in adsorption pertinence and large in effective specific surface area.
Description
technical field:
The present invention relates to activated carbon fiber preparation method technical field, particularly a kind of method of producing activated carbon fiber salt pretreatment.
background technology:
At present, prior art is the salt pretreatment methods that adopt in producing the pretreated process of activated carbon fiber more, be that raw fiber is fully immersed in salt (phosphate, carbonate, sulfate etc.) solution, carry out carbonization after then making it dehydrate, activated carbon fiber is prepared in activation.And the salting liquid (as 6% ~ 8%) that mostly adopts single concentration in impregnation technology floods raw fiber certain hour, after dry, carry out carbonization-activation, although the production yield to the performance of product and product makes moderate progress and improves, but it is insufficient that salting liquid soaks, and takes away large quantity of moisture, make carbon fiber meeting fusion and decomposition when high temperature cabonization, cause the carbon content of product low, thereby effective ratio area is little, adsorption desorption capacity is low, therefore in Application Areas, can be subject to certain restrictions.
summary of the invention:
In view of this, the object of the present invention is to provide a kind ofly to make organic solution by raw fiber dipping fully, do not take away moisture, products obtained therefrom phosphorus content is high, adsorb method with strong points, to have the salt pretreatment that effective ratio area is large.
For achieving the above object, the present invention by the following technical solutions: a kind of method of producing activated carbon fiber salt pretreatment, comprises the steps:
S1: take viscose felt, cloth is raw material, carries out salt pretreatment by raw material cutting, after planishing;
S2: the raw material after planishing is carried out to salt pretreatment for the first time, in salt pretreatment device in 7% ~ 8% (NH
4)
2hPO
3solution sprays rear immersion 1 ~ 2h under the condition of 40 ℃ ~ 60 ℃, after immersion, by extruder, dehydrates;
S3: after salt pretreatment, carry out continuously for the first time salt pretreatment for the second time, in salt pretreatment device in 6% ~ 7% (NH
4)
2hPO
3solution sprays rear immersion 1 ~ 2h under the condition of 40 ℃ ~ 60 ℃, after immersion, by extruder, dehydrates;
S4: after salt pretreatment, carry out continuously for the second time salt pretreatment for the third time, in salt pretreatment device in 5% ~ 6% (NH
4)
2hPO
3solution sprays rear immersion 1 ~ 2h under the condition of 40 ℃ ~ 60 ℃, after immersion, by extruder, dehydrates;
S5: the raw material after salt pretreatment is for the third time dried in dryer, and temperature is controlled at 120 ~ 140 ℃, and pressure is 0.2 ~ 0.4 Mpa;
S6: enter continuously carbonization technique after raw material arrangement, volume after drying is flat and carry out carbonization.
Above-mentioned salt pretreatment device is that top is provided with eight spray equipments, and bottom is for soaking position, and it is highly 1 ~ 1.5m that solution soaks.
Above-mentioned dryer adopts wind formula dryer, in the middle of it, is three-layer network band, is inside provided with two three-dimensional rollings of rod, heats rod heat conduction make raw material stoving by steam, and effectively drying length is 36m.
Viscose (felt or cloth) by three salt pretreatments is in (NH
4)
2hPO
3in solution, through three continuous sprays, dry after soaking, dehydrating, raw material can not only be soaked evenly, fully again, and (NH
4)
2hPO
3the concentration of solution is not diluted, and weight increases, and do not take away moisture, thereby the product moisture content of gained is low, and phosphorus content is high, it is with strong points to adsorb, effective ratio area is large.
the specific embodiment:
The invention will be further described by the following examples, take viscose felt, cloth as raw material is prepared active carbon fiber felt, cloth is example, and the method step of salt pretreatment is as follows:
A) take viscose felt, cloth is raw material, by raw material cutting, after planishing, carries out salt pretreatment;
B) raw material after planishing is carried out to salt pretreatment for the first time, in salt pretreatment device in 7% ~ 8% (NH
4)
2hPO
3solution sprays rear immersion 1 ~ 2h under the condition of 40 ℃ ~ 60 ℃, after immersion, by extruder, dehydrates;
C) after salt pretreatment, carry out continuously salt pretreatment for the second time for the first time, in salt pretreatment device in 6% ~ 7% (NH
4)
2hPO
3solution sprays rear immersion 1 ~ 2h under the condition of 40 ℃ ~ 60 ℃, after immersion, by extruder, dehydrates;
D) after salt pretreatment, carry out continuously salt pretreatment for the third time for the second time, in salt pretreatment device in 5% ~ 6% (NH
4)
2hPO
3solution sprays rear immersion 1 ~ 2h under the condition of 40 ℃ ~ 60 ℃, after immersion, by extruder, dehydrates;
E) raw material after salt pretreatment is for the third time dried in dryer, temperature is controlled at 120 ~ 140 ℃, and pressure is 0.2 ~ 0.4 Mpa;
F) raw material arrangement, volume after drying are entered to carbonization technique after putting down continuously and carry out carbonization.
Described salt pretreatment device is that top is provided with eight spray equipments, and bottom is for soaking position, and it is highly 1 ~ 1.5m that solution soaks.
Described dryer adopts wind formula dryer, in the middle of it, is three-layer network band, is inside provided with two three-dimensional rollings of rod, heats rod heat conduction make raw material stoving by steam, and effectively drying length is 36m.
The present invention produces the active carbon fiber felt obtaining, the various performance parameters of cloth, after testing as following table 1:
Table 1
| Sequence number | Project | Parameter |
| 1 | Specific area (㎡/g) | 800~2500 |
| 2 | Filament diameter (μ m) | 10~20 |
| 3 | Bulk density (g/cm2) | 0.04~0.10 |
| 4 | Phosphorus content (%) | ＞95 |
| 5 | Moisture (%) | ＜5 |
| 6 | Burning-point (℃) | ＞500 |
| 7 | PH value | 5.0~7.0 |
Various performance parameters by above-mentioned table 1 active carbon fiber felt, cloth is analyzed, Product Activity carbon fiber felt, cloth phosphorus content be up to more than 95%, guaranteed its more by force, more lasting adsorption capacity, and effectively increase the service life; Can be according to the molecular size deisgn product micropore of institute's adsorbent, aperture and the ratio thereof of mesopore, thus reach targetedly optimal adsorption effect; Moisture is low, when caning be controlled in effective high-specific surface area below 5%, still can control the accounting of micropore, mesopore, thereby guarantee the effective adsorption effect of product.
Claims (3)
1. a method of producing activated carbon fiber salt pretreatment, comprises the steps:
Take viscose felt, cloth is raw material, by raw material cutting, after planishing, carries out salt pretreatment;
Raw material after planishing is carried out to salt pretreatment for the first time, in salt pretreatment device in 7% ~ 8% (NH
4)
2hPO
3solution sprays rear immersion 1 ~ 2h under the condition of 40 ℃ ~ 60 ℃, after immersion, by extruder, dehydrates;
After salt pretreatment, carry out continuously for the first time salt pretreatment for the second time, in salt pretreatment device in 6% ~ 7% (NH
4)
2hPO
3solution sprays rear immersion 1 ~ 2h under the condition of 40 ℃ ~ 60 ℃, after immersion, by extruder, dehydrates;
After salt pretreatment, carry out continuously for the second time salt pretreatment for the third time, in salt pretreatment device in 5% ~ 6% (NH
4)
2hPO
3solution sprays rear immersion 1 ~ 2h under the condition of 40 ℃ ~ 60 ℃, after immersion, by extruder, dehydrates;
Raw material after salt pretreatment is for the third time dried in dryer, and temperature is controlled at 120 ~ 140 ℃, and pressure is 0.2 ~ 0.4 Mpa;
After raw material arrangement, volume after drying is flat, enter continuously carbonization technique and carry out carbonization.
2. the method for production activated carbon fiber salt pretreatment according to claim 1, is characterized in that, described salt pretreatment device top is provided with eight spray equipments, and bottom is for soaking position, and it is highly 1 ~ 1.5m that solution soaks.
3. the method for production activated carbon fiber salt pretreatment according to claim 1, it is characterized in that, described dryer adopts wind formula dryer, centre is three-layer network band, inside be provided with two three-dimensional rollings of rod, by steam, heat rod heat conduction and make raw material stoving, effectively drying length is 36m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310669896.8A CN103643351B (en) | 2013-12-11 | 2013-12-11 | A kind of method of producing activated carbon fiber salt pretreatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310669896.8A CN103643351B (en) | 2013-12-11 | 2013-12-11 | A kind of method of producing activated carbon fiber salt pretreatment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103643351A true CN103643351A (en) | 2014-03-19 |
| CN103643351B CN103643351B (en) | 2015-09-09 |
Family
ID=50248629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310669896.8A Active CN103643351B (en) | 2013-12-11 | 2013-12-11 | A kind of method of producing activated carbon fiber salt pretreatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103643351B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105064031A (en) * | 2015-08-20 | 2015-11-18 | 北京化工大学 | Method for preparing high-modulus carbon fibers at low temperature |
| CN113913969A (en) * | 2021-11-18 | 2022-01-11 | 因达孚先进材料(苏州)有限公司 | Method for preparing hydrophobic activated carbon fiber from carbon felt leftover material |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1114633A (en) * | 1994-07-03 | 1996-01-10 | 中国科学院长春应用化学研究所 | Method for preparation of viscose fibre active carbon |
| CN1204622A (en) * | 1998-06-20 | 1999-01-13 | 中山大学 | Treatment of waste water containing dye using activated carbon fiber adsorption process |
| JP2002038334A (en) * | 2000-07-28 | 2002-02-06 | Nokia Mobile Phones Ltd | Method for producing fine activated carbon fiber and fine activated carbon fiber produced thereby |
| US6383972B1 (en) * | 1997-11-24 | 2002-05-07 | Messier-Bugatti | Preparation of a catalyst support in activated carbon fibres |
| CN1632199A (en) * | 2004-11-29 | 2005-06-29 | 东华大学 | Process for preparing big aperture active carbon fibers |
-
2013
- 2013-12-11 CN CN201310669896.8A patent/CN103643351B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1114633A (en) * | 1994-07-03 | 1996-01-10 | 中国科学院长春应用化学研究所 | Method for preparation of viscose fibre active carbon |
| US6383972B1 (en) * | 1997-11-24 | 2002-05-07 | Messier-Bugatti | Preparation of a catalyst support in activated carbon fibres |
| CN1204622A (en) * | 1998-06-20 | 1999-01-13 | 中山大学 | Treatment of waste water containing dye using activated carbon fiber adsorption process |
| JP2002038334A (en) * | 2000-07-28 | 2002-02-06 | Nokia Mobile Phones Ltd | Method for producing fine activated carbon fiber and fine activated carbon fiber produced thereby |
| CN1632199A (en) * | 2004-11-29 | 2005-06-29 | 东华大学 | Process for preparing big aperture active carbon fibers |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105064031A (en) * | 2015-08-20 | 2015-11-18 | 北京化工大学 | Method for preparing high-modulus carbon fibers at low temperature |
| CN113913969A (en) * | 2021-11-18 | 2022-01-11 | 因达孚先进材料(苏州)有限公司 | Method for preparing hydrophobic activated carbon fiber from carbon felt leftover material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103643351B (en) | 2015-09-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103668831B (en) | Active carbon fiber felt, cloth continuous production technique | |
| CN205856820U (en) | A kind of wet tissue infiltration damping device | |
| CN101824669B (en) | Mesopore activated carbon fiber and manufacturing method thereof | |
| Zuo et al. | Effects of the heating history of impregnated lignocellulosic material on pore development during phosphoric acid activation | |
| CN104386685A (en) | Method for preparing nitrogen-doped active carbon from nitrogen-enriched biomass raw material | |
| RU2011147371A (en) | NEW MONOLITHIC POROUS CARBON MATERIAL MODIFIED BY SULFUR, METHOD OF ITS PRODUCTION AND ITS APPLICATION FOR ACCUMULATION AND RECOVERY OF ENERGY | |
| CN104692381A (en) | Preparation method of superhigh-specific-area activated carbon fibers | |
| CN103920460A (en) | Method for preparing high-performance biomass activated carbon fibers | |
| CN103696195A (en) | Secondary carbonization technology for producing activated carbon fibers | |
| CN103643351A (en) | Method for producing active carbon fiber in salt dip pretreatment mode | |
| CN104532504A (en) | Preparation method of polytetrafluoroethylene glass fiber breathable varnished cloth | |
| CN106608622A (en) | Method for preparing hemp-stem-based active carbon through microwaves | |
| CN104264285A (en) | Method for preparing mesoporous activated carbon fibers | |
| JP2014507270A5 (en) | ||
| CN106517183A (en) | A low-cost simple preparing method for nitrogen-doped porous charcoal with a high specific surface area | |
| CN103696232B (en) | A kind of activating process producing activated carbon fiber | |
| CN102923703A (en) | Method for manufacturing longstalck peach nuclear shell activated carbon | |
| CN105054277A (en) | Cut rolled stem processing method acquiring high fill value | |
| CN107012605B (en) | Environment-friendly embroidery base fabric capable of being cracked by heating | |
| CN207188104U (en) | A kind of steel structure surface spray equipment | |
| CN107777687A (en) | It is a kind of except the preparation method of ammonia activated carbon | |
| CN105688808A (en) | Mixing type grease adsorbent | |
| CN202951484U (en) | Catalyst preparation tower | |
| CN108221367A (en) | Hydrophobic modifier for activated carbon fibre and preparation method thereof, hydrophobic active Carbon fibe and preparation method thereof | |
| CN111747747A (en) | Preparation method, product and application of carbon-based material with bionic fractal structure based on shaddock peel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161228 Address after: 753000 Dawukou, Shizuishan, Helan District, No. 54 South Hill Road, No. Patentee after: Ningxia Changtian Environmental Protection Technology Co., Ltd. Address before: 510000 Tianhe District, Guangzhou, No. five road, No. 06, grade 381 mechanical undergraduate Patentee before: Yang Xuebin |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201105 Address after: 215228, No. two, No. 1188, West Ring Road, Shengze Town, Wujiang District, Jiangsu, Suzhou Patentee after: Suzhou Shengze science and Technology Pioneer Park Development Co.,Ltd. Address before: Helan mountain district Dawukou road 753000 the Ningxia Hui Autonomous Region Shizuishan City No. 54 Patentee before: NINGXIA CHANGTIAN ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. |