CN103643351B - A kind of method of producing activated carbon fiber salt pretreatment - Google Patents
A kind of method of producing activated carbon fiber salt pretreatment Download PDFInfo
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- CN103643351B CN103643351B CN201310669896.8A CN201310669896A CN103643351B CN 103643351 B CN103643351 B CN 103643351B CN 201310669896 A CN201310669896 A CN 201310669896A CN 103643351 B CN103643351 B CN 103643351B
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- Prior art keywords
- salt pretreatment
- raw material
- immersion
- hpo
- carry out
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical class C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims abstract description 14
- 150000003839 salts Chemical class 0.000 claims abstract description 40
- 239000002994 raw material Substances 0.000 claims abstract description 24
- 238000007654 immersion Methods 0.000 claims abstract description 22
- 239000004744 fabric Substances 0.000 claims abstract description 10
- 238000005507 spraying Methods 0.000 claims abstract description 10
- 238000003763 carbonization Methods 0.000 claims abstract description 9
- 229920000297 Rayon Polymers 0.000 claims abstract description 6
- 238000001035 drying Methods 0.000 claims abstract description 5
- 238000005520 cutting process Methods 0.000 claims abstract description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000002791 soaking Methods 0.000 claims description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 4
- 239000011574 phosphorus Substances 0.000 abstract description 4
- 238000002203 pretreatment Methods 0.000 abstract description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 5
- 239000004917 carbon fiber Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000009938 salting Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000002336 sorption--desorption measurement Methods 0.000 description 1
Landscapes
- Carbon And Carbon Compounds (AREA)
- Inorganic Fibers (AREA)
Abstract
Produce a method for activated carbon fiber salt pretreatment, with viscose (felt or cloth) for raw material, cutting, planish after carry out three continuous print salt pretreatments, namely respectively in salt pretreatment device in the (NH of 7% ~ 8%
4)
2hPO
3solution, 6% ~ 7% (NH
4)
2hPO
3solution, 5% ~ 6% (NH
4)
2hPO
3carry out spraying rear immersion in solution under the condition of 40 DEG C ~ 60 DEG C, dehydrated after immersion by extruder, then dry in wind formula dryer, the raw material arrangement after finally drying, volume enter carbonization technique continuously after putting down and carry out carbonization.Can not only be even by immersion, abundant by method raw material of the present invention, and (NH
4)
2hPO
3the concentration of solution is not diluted, and weight increases, and do not take away moisture, thus 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.
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 in the pretreated process of production activated carbon fiber more adopts salt pretreatment method, be raw fiber is fully immersed in salt (phosphate, carbonate, sulfate etc.) solution, after then making it dehydrate, carry out carbonization, activated carbon fiber is prepared in activation.And in impregnation technology, mostly adopt salting liquid (as 6% ~ 8%) the impregnated raw material fiber certain hour of single concentration, carbonization-activation is carried out after drying, although make moderate progress to the performance of product and the production yield of product and improve, but salting liquid soaks insufficient, takes away large quantity of moisture, make carbon fiber meeting fusion and decomposition when high temperature cabonization, cause the carbon content of product low, thus effective ratio area is little, adsorption desorption capacity is low, therefore can be subject to certain restrictions in Application Areas.
summary of the invention:
In view of this, the object of the present invention is to provide one 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, there is the large salt pretreatment of effective ratio area.
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: with viscose felt, cloth for raw material, by raw material cutting, planish after carry out salt pretreatment;
S2: the raw material after planishing is carried out first time salt pretreatment, namely in salt pretreatment device in the (NH of 7% ~ 8%
4)
2hPO
3solution carries out spraying rear immersion 1 ~ 2h under the condition of 40 DEG C ~ 60 DEG C, is dehydrated after immersion by extruder;
S3: carry out second time salt pretreatment continuously after first time salt pretreatment, namely in salt pretreatment device in the (NH of 6% ~ 7%
4)
2hPO
3solution carries out spraying rear immersion 1 ~ 2h under the condition of 40 DEG C ~ 60 DEG C, is dehydrated after immersion by extruder;
S4: carry out third time salt pretreatment continuously after second time salt pretreatment, namely in salt pretreatment device in the (NH of 5% ~ 6%
4)
2hPO
3solution carries out spraying rear immersion 1 ~ 2h under the condition of 40 DEG C ~ 60 DEG C, is dehydrated after immersion by extruder;
S5: dried in dryer by the raw material after third time salt pretreatment, temperature controls at 120 ~ 140 DEG C, and pressure is 0.2 ~ 0.4 Mpa;
S6: the raw material arrangement after oven dry, volume are entered carbonization technique continuously after putting down 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, is three-layer network band, is inside provided with two three-dimensional rollings of rod in the middle of it, and make raw material stoving by the heat conduction of steam heating rod, effectively drying length is 36m.
By the viscose (felt or cloth) of three salt pretreatments in (NH
4)
2hPO
3spray through three continuous print in solution, soak, dehydrate after dry again, raw material can not only by immersion evenly, fully, and (NH
4)
2hPO
3the concentration of solution is not diluted, and weight increases, and do not take away moisture, thus 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.
detailed description of the invention:
The invention will be further described by the following examples, and prepare active carbon fiber felt, cloth for viscose felt, cloth for raw material, the method step of salt pretreatment is as follows:
A) with viscose felt, cloth for raw material, by raw material cutting, planish after carry out salt pretreatment;
B) raw material after planishing is carried out first time salt pretreatment, namely in salt pretreatment device in the (NH of 7% ~ 8%
4)
2hPO
3solution carries out spraying rear immersion 1 ~ 2h under the condition of 40 DEG C ~ 60 DEG C, is dehydrated after immersion by extruder;
C) carry out second time salt pretreatment continuously after first time salt pretreatment, namely in salt pretreatment device in the (NH of 6% ~ 7%
4)
2hPO
3solution carries out spraying rear immersion 1 ~ 2h under the condition of 40 DEG C ~ 60 DEG C, is dehydrated after immersion by extruder;
D) carry out third time salt pretreatment continuously after second time salt pretreatment, namely in salt pretreatment device in the (NH of 5% ~ 6%
4)
2hPO
3solution carries out spraying rear immersion 1 ~ 2h under the condition of 40 DEG C ~ 60 DEG C, is dehydrated after immersion by extruder;
E) dried in dryer by the raw material after third time salt pretreatment, temperature controls at 120 ~ 140 DEG C, and pressure is 0.2 ~ 0.4 Mpa;
F) the raw material arrangement after oven dry, volume are entered carbonization technique continuously after putting down 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, is three-layer network band, is inside provided with two three-dimensional rollings of rod in the middle of it, and make raw material stoving by the heat conduction of steam heating rod, effectively drying length is 36m.
The present invention produce obtain active carbon fiber felt, cloth various performance parameters, after testing as following table 1:
Table 1
By the various performance parameters analysis of above-mentioned table 1 active carbon fiber felt, cloth, Product Activity carbon fiber felt, cloth phosphorus content up to more than 95%, ensure that its more by force, more lasting adsorption capacity, and effectively to increase the service life; According to the aperture of the molecular size deisgn product micropore of institute's adsorbent, mesopore and ratio thereof, thus optimal adsorption effect can be reached targetedly; Moisture is low, while caning be controlled in less than 5% effective high-specific surface area, still can control the accounting of micropore, mesopore, thus guarantee the effective adsorption effect of product.
Claims (3)
1. produce a method for activated carbon fiber salt pretreatment, comprise the steps:
With viscose felt, cloth for raw material, by raw material cutting, planish after carry out salt pretreatment;
Raw material after planishing is carried out first time salt pretreatment, namely in salt pretreatment device in the (NH of 7% ~ 8%
4)
2hPO
3solution carries out spraying rear immersion 1 ~ 2h under the condition of 40 DEG C ~ 60 DEG C, is dehydrated after immersion by extruder;
Carry out second time salt pretreatment continuously after first time salt pretreatment, namely in salt pretreatment device in the (NH of 6% ~ 7%
4)
2hPO
3solution carries out spraying rear immersion 1 ~ 2h under the condition of 40 DEG C ~ 60 DEG C, is dehydrated after immersion by extruder;
Carry out third time salt pretreatment continuously after second time salt pretreatment, namely in salt pretreatment device in the (NH of 5% ~ 6%
4)
2hPO
3solution carries out spraying rear immersion 1 ~ 2h under the condition of 40 DEG C ~ 60 DEG C, is dehydrated after immersion by extruder;
Dried in dryer by raw material after third time salt pretreatment, temperature controls at 120 ~ 140 DEG C, and pressure is 0.2 ~ 0.4 Mpa;
Raw material arrangement after oven dry, volume are entered carbonization technique continuously after putting down 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 roller, make raw material stoving by the heat conduction of steam heated rollers, effectively drying length is 36m.
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| 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 |
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| 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 |
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| Publication Number | Publication Date |
|---|---|
| CN103643351A CN103643351A (en) | 2014-03-19 |
| CN103643351B true CN103643351B (en) | 2015-09-09 |
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Families Citing this family (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 |
| CN113913969B (en) * | 2021-11-18 | 2023-03-17 | 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 (3)
| 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 | Preparation method of viscose activated 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 |
| US6383972B1 (en) * | 1997-11-24 | 2002-05-07 | Messier-Bugatti | Preparation of a catalyst support in activated carbon fibres |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN1282778C (en) * | 2004-11-29 | 2006-11-01 | 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 (3)
| 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 | Preparation method of viscose activated 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 |
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| CN103643351A (en) | 2014-03-19 |
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