CN1517146A - Flame-retardant activated carbon and preparation method thereof - Google Patents
Flame-retardant activated carbon and preparation method thereof Download PDFInfo
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- CN1517146A CN1517146A CNA031004938A CN03100493A CN1517146A CN 1517146 A CN1517146 A CN 1517146A CN A031004938 A CNA031004938 A CN A031004938A CN 03100493 A CN03100493 A CN 03100493A CN 1517146 A CN1517146 A CN 1517146A
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- flame
- retardant
- activated carbon
- flame retardant
- active carbon
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 118
- 239000003063 flame retardant Substances 0.000 title claims abstract description 68
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 51
- 238000002360 preparation method Methods 0.000 title description 4
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 33
- 238000005507 spraying Methods 0.000 claims abstract description 7
- 239000011230 binding agent Substances 0.000 claims description 8
- 239000004114 Ammonium polyphosphate Substances 0.000 claims description 6
- 235000019826 ammonium polyphosphate Nutrition 0.000 claims description 6
- 229920001276 ammonium polyphosphate Polymers 0.000 claims description 6
- 239000002904 solvent Substances 0.000 claims description 6
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 4
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 claims description 4
- 239000005995 Aluminium silicate Substances 0.000 claims description 3
- 235000012211 aluminium silicate Nutrition 0.000 claims description 3
- 239000000440 bentonite Substances 0.000 claims description 3
- 229910000278 bentonite Inorganic materials 0.000 claims description 3
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 3
- 239000012796 inorganic flame retardant Substances 0.000 claims description 3
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 3
- HQUQLFOMPYWACS-UHFFFAOYSA-N tris(2-chloroethyl) phosphate Chemical compound ClCCOP(=O)(OCCCl)OCCCl HQUQLFOMPYWACS-UHFFFAOYSA-N 0.000 claims description 3
- VEORPZCZECFIRK-UHFFFAOYSA-N 3,3',5,5'-tetrabromobisphenol A Chemical compound C=1C(Br)=C(O)C(Br)=CC=1C(C)(C)C1=CC(Br)=C(O)C(Br)=C1 VEORPZCZECFIRK-UHFFFAOYSA-N 0.000 claims description 2
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 claims description 2
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 claims description 2
- 229910000148 ammonium phosphate Inorganic materials 0.000 claims description 2
- ZRIUUUJAJJNDSS-UHFFFAOYSA-N ammonium phosphates Chemical compound [NH4+].[NH4+].[NH4+].[O-]P([O-])([O-])=O ZRIUUUJAJJNDSS-UHFFFAOYSA-N 0.000 claims description 2
- WHHGLZMJPXIBIX-UHFFFAOYSA-N decabromodiphenyl ether Chemical compound BrC1=C(Br)C(Br)=C(Br)C(Br)=C1OC1=C(Br)C(Br)=C(Br)C(Br)=C1Br WHHGLZMJPXIBIX-UHFFFAOYSA-N 0.000 claims description 2
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 claims description 2
- 229910000388 diammonium phosphate Inorganic materials 0.000 claims description 2
- 235000019838 diammonium phosphate Nutrition 0.000 claims description 2
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 2
- 239000000347 magnesium hydroxide Substances 0.000 claims description 2
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 2
- 235000019837 monoammonium phosphate Nutrition 0.000 claims description 2
- 239000012188 paraffin wax Substances 0.000 claims description 2
- JZZBTMVTLBHJHL-UHFFFAOYSA-N tris(2,3-dichloropropyl) phosphate Chemical compound ClCC(Cl)COP(=O)(OCC(Cl)CCl)OCC(Cl)CCl JZZBTMVTLBHJHL-UHFFFAOYSA-N 0.000 claims description 2
- BIKXLKXABVUSMH-UHFFFAOYSA-N trizinc;diborate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]B([O-])[O-].[O-]B([O-])[O-] BIKXLKXABVUSMH-UHFFFAOYSA-N 0.000 claims description 2
- 235000015112 vegetable and seed oil Nutrition 0.000 claims description 2
- 239000008158 vegetable oil Substances 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims 1
- 239000000835 fiber Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 239000000843 powder Substances 0.000 claims 1
- 239000003340 retarding agent Substances 0.000 claims 1
- 238000001179 sorption measurement Methods 0.000 abstract description 8
- 239000000126 substance Substances 0.000 abstract description 4
- 239000003463 adsorbent Substances 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000002791 soaking Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 10
- 239000000047 product Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000003245 coal Substances 0.000 description 4
- 238000007598 dipping method Methods 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 206010000369 Accident Diseases 0.000 description 2
- 238000004887 air purification Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 235000013162 Cocos nucifera Nutrition 0.000 description 1
- 244000060011 Cocos nucifera Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000004455 differential thermal analysis Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 239000012855 volatile organic compound Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The fire-retardant active carbon contains active carbon 60-98 wt% of total finished product weight and fire retardant 2-40 wt% of total finished product weight, and is prepared through spraying, soaking or adding fire retardant directly into active carbon, and stoving at 80-200 deg.c to obtain the fire-retardant active carbon. The activated carbon not only has the advantages of common activated carbon, such as large specific surface area and good adsorption performance, but also has flame retardant performance, and can be used as an adsorbent to be applied to the fields of chemical industry, environmental protection and the like.
Description
Technical Field
The invention relates to novel active carbon and a preparation method thereof, and the novel active carbon can be used as an adsorbent in the fields of chemical industry, environmental protection and the like.
Background
Activated carbon has a developed pore structure, excellent adsorption performance and high use stability, is an excellent adsorbent, and is commonly used in many industrial sectors, and has a cylindrical, spherical, crushed, powdery, honeycomb or fibrous shape.
In the air purification, solvent recovery, etc., the adsorption by activated carbon has been widely used, and has become a necessary and irreplaceable technology, most of the cases are that the activated carbon adsorbs volatile organic compounds, because the activated carbon surface has a large amount of oxygen-containing groups, and because the activated carbon has a small thermal conductivity, the ignition can be caused by the accumulated heat amount generated by certain oxidation reaction in the adsorption or desorption process, and reports indicate that the activated carbon adsorbing oxygen can be ignited at a relatively low temperature even if no solvent or other substances exist when the activated carbon is overheated, and that many times of fire accidents occur, such as many times of fire accidents occur in the air purification system of the atomic power station and the activated carbon adsorption device for solvent recovery. The activated carbon adsorption is considered to be an ignition risk, and for the ignition risk and ignition accident caused by activated carbon, please refer to the national institute of book, the Ming Dynasty, the high-level Ming translation, the application technology of activated carbon, the university Press of southeast, pp550-558 (2002).
Therefore, the existing activated carbon has fire danger in the using process, and the problem is not solved well so far, thereby influencing the use of the activated carbon.
Disclosure of Invention
The invention aims to add a fire retardant into the active carbon, and the active carbon with fire retardant performance is prepared by spraying, dipping or directly adding the fire retardant in the forming process while keeping large specific surface area and good adsorption performance of the active carbon.
The flame-retardant active carbon comprises 60-98% of active carbon in thetotal weight of a finished product, and also comprises 2-40% of flame retardant in the total weight of the finished product. The preparation method comprises the steps of spraying and dipping the active carbon or directly adding a flame retardant in the forming process, and drying at 80-200 ℃ to prepare the flame-retardant active carbon.
When the active carbon added with the flame retardant is used and generates local heat accumulation and reaches a certain temperature to cause fire danger, the flame retardant is decomposed to absorb heat, and the action mechanism of the flame retardant is as follows:
the flame retardant absorbs a large amount of heat, reduces the temperature and achieves the purpose of flame retardance, thereby avoiding the ignition of the activated carbon and leading the activated carbon to have flame retardant property. In addition, the gaseous substances in the thermal decomposition products of the flame retardant surround the combustion material, dilute the surrounding air or isolate the supplement of fresh air, and extinguish the combustion products in an oxygen-free state.
Detailed Description
The present invention will be described in detail with reference to specific examples.
In the invention, the main raw materials of the flame-retardant activated carbon are activated carbon and a flame retardant, and a binder and a solubilizer are sometimes added according to specific conditions.
The active carbon accounts for 60-98% of the total weight of the finished product, the flame retardant accounts for 2-40%, 0-30% of adhesive and solubilizer can be added, the flame retardant is added by spraying, dipping or directly adding the flame retardant in the forming process, and the flame retardant active carbon is prepared after drying at 80-200 ℃.
The flame retardant can be inorganic flame retardants such as antimony trioxide, zinc borate, diammonium hydrogen phosphate, ammonium dihydrogen phosphate, triammonium phosphate, ammonium polyphosphate, aluminum hydroxide or magnesium hydroxide, organic flame retardants such as tris (β -chloroethyl) phosphate, tris (2, 3-dichloropropyl) phosphate, chlorinated paraffin, tetrabromobisphenol A and decabromodiphenyl ether, and can be used alone or in combination of two or three of the flame retardants.
The binder of the present invention may be an inorganic binder such as bentonite and kaolin, or an organic binder such as vegetable oil and tar, either alone or in combination.
The shape of the active carbon can be cylindrical, spherical, crushed, powdery, fibrous or honeycomb, and the source of the active carbon can be coal carbon, wood carbon, coconut shell carbon or other carbon materials.
For cylindrical, spherical, crushed, powdery or fibrous active carbon, the flame retardant can be added into the active carbon by a spraying or dipping method, and for honeycomb active carbon, the flame retardant can be added into the active carbon by an adding method of directly adding the flame retardant in the forming process, and then the flame retardant active carbon is prepared by drying treatment.
Example 1
90 parts of coal cylindrical granular activated carbon (weight percentage, the same below), 10 parts of water-soluble ammonium polyphosphate fire retardant and 62 parts of water are added into the fire retardant to prepare an ammonium polyphosphate water solution, the ammonium polyphosphate water solution is soaked on the granular activated carbon under continuous stirring, and then the granular activated carbon is prepared into the fire-retardant granular activated carbon after being dried for 2 hours at the temperature of 150 ℃, and the performance of the fire-retardant granular activated carbon is shown in table 1.
Example 2
95 parts of fibrous active carbon (weight percentage, the same below) is uniformly sprayed on the fibrous active carbon by 5 parts of tris (β -chloroethyl) phosphate flame retardant, and then the fibrous active carbon is baked for 2 hours at the temperature of 120 ℃ to prepare the flame-retardant fibrous active carbon, and the performance of the flame-retardant fibrous active carbon is shown in table 1.
Example 3
80 parts of coal activated carbon powder (weight percentage, the same below), 10 parts of bentonite and 10 parts of particle aluminum hydroxide fire retardant are ground for 5 hours in a ball mill, sieved by a 180-mesh vibrating screen, added with about 30 parts of water, mixed and stirred to prepare a mud cake, then mixed and refined, and formed by a special metal mold through an extrusion method to prepare a cuboid with the specification of 50 multiplied by 100, wherein the cuboid has a complete honeycomb structure, and then dried for 2 hours at the temperature of 200 ℃ to prepare the flame-retardant honeycomb activated carbon, and the performance of the flame-retardant honeycomb activated carbon is shown in table 1.
Example 4
75 parts of coal activated carbon powder (weight percentage, the same below), 15 parts of kaolin and 10 parts of ammonium polyphosphate fire retardant are ground for 5 hours in a ball mill, the mixture is sieved by a 180-mesh vibrating screen, 30 parts of water is added to the mixture and stirred to prepare mud cakes, the mud cakes are mixed and kneaded, the obtained mud cakes are formed by a special metal die through an extrusion method to prepare cuboids with the specification of 50 multiplied by 100, the cuboids have complete honeycomb structures, and the cuboids are dried for 2 hours at the temperature of 150 ℃ to prepare the flame-retardant honeycomb activated carbon, wherein the performances of the flame-retardant honeycomb activated carbon are shown in table.
Comparative example
This comparative example was carried out in the same manner as in example 3 except that no aluminum hydroxide flame retardant was added to the raw material to prepare a honeycomb active carbon, and the properties thereof are shown in Table 1.
TABLE 1 Properties of flame-retardant activated carbon
| Examples | Example 1 | Example 2 | Example 3 | Example 4 | Comparative example |
| Shape of activated carbon | Cylindrical shape | Fibrous form | Honeycomb shape | Honeycomb shape | Honeycomb shape |
| Flame retardant adding method | Impregnation | Spraying of | Forming process Adding in | Forming process Adding in | Is free of |
| Specific surface area (BET, m)2/g) | 983 | 1126 | 746 | 713 | 780 |
| Benzene adsorption capacity (P/Ps 0.175, w/w%) | 33.8 | 51.5 | 24.5 | 22.8 | 25.7 |
| Differential thermal analysis endothermic peak (. degree. C.) (20mg sample, heating rate 5 ℃/min) | 270 | 235 | 240 | 250 | Is free of |
Claims (8)
1. The flame-retardant active carbon comprises 60-98% of active carbon in the total weight of a finished product, and is characterized by also comprising 2-40% of flame retardant in the total weight of the finished product.
2. The flame-retardant activated carbon according to claim 1, wherein the flame retardant is an inorganic flame retardant such as antimony trioxide, zinc borate, diammonium hydrogen phosphate, ammonium dihydrogen phosphate, triammonium phosphate, ammonium polyphosphate, aluminum hydroxide or magnesium hydroxide, and the flame retardant can be used alone or in combination of two or three of the above flame retardants.
3. The flame-retardant activated carbon according to claim 1, wherein the flame retardant is an organic flame retardant such as tris (β -chloroethyl) phosphate, tris (2, 3-dichloropropyl) phosphate, chlorinated paraffin, tetrabromobisphenol A, decabromodiphenyl ether, and the like, and the flame retardant can be used alone or in combination of two or three of the above flame retardants.
4. The flame-retardant activated carbon according to claim 1, 2 or 3, wherein the flame retardant is a composite flame retardant comprising one or more of the inorganic flame retardant and the organic flame retardant.
5. The flame-retardant activated carbon according to claim 1, 2 or 3, wherein the flame-retardant activated carbon further comprises 0-30% by weight of a binder and a solubilizer, based on the total weight of the finished product.
6. The flame-retardant activated carbon according to claim 5, wherein said binder is an inorganic binder such as bentonite, kaolin, etc., or an organic binder such as vegetable oil, tar, etc., either alone or in combination.
7. The flame-retardant activated carbon according to claim 1, 2 or 3, which is characterized by being in the shape of a cylinder, a sphere, a crushed shape, a powder, a fiber or a honeycomb.
8. A process for preparing the flame-retarding activated carbon includes spraying or immersing the activated carbon in the flame-retarding agent, and baking at 80-200 deg.C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031004938A CN100553758C (en) | 2003-01-16 | 2003-01-16 | Flame-retardant activated carbon and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031004938A CN100553758C (en) | 2003-01-16 | 2003-01-16 | Flame-retardant activated carbon and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1517146A true CN1517146A (en) | 2004-08-04 |
| CN100553758C CN100553758C (en) | 2009-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031004938A Expired - Fee Related CN100553758C (en) | 2003-01-16 | 2003-01-16 | Flame-retardant activated carbon and preparation method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104562695A (en) * | 2015-01-28 | 2015-04-29 | 苏州爱立方服饰有限公司 | Halogen-free flame-retardant finishing agent and preparation method thereof |
| CN105536736A (en) * | 2016-01-21 | 2016-05-04 | 河南省安克林滤业有限公司 | Formula of waste gas filtering material |
| CN106010650A (en) * | 2016-05-12 | 2016-10-12 | 辽宁凯迈石化有限公司 | Compound refining method of paraffin |
| CN107262029A (en) * | 2017-06-14 | 2017-10-20 | 昆明理工大学 | A kind of high flame retardant carbon-supported catalyst and preparation method thereof |
| CN107915223A (en) * | 2017-12-22 | 2018-04-17 | 海安常州大学高新技术研发中心 | A kind of preparation method of fire-retardant silica and absorbent charcoal composite material |
| CN111794629A (en) * | 2020-07-08 | 2020-10-20 | 江西远大保险设备实业集团有限公司 | Fireproof heat-insulation type safe and manufacturing process thereof |
| CN113750963A (en) * | 2021-09-13 | 2021-12-07 | 苏州克拉克森活性炭有限公司 | Flame-retardant high-iodine-value honeycomb activated carbon and preparation process thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100452034B1 (en) * | 1996-06-11 | 2004-12-03 | 도레이 가부시끼가이샤 | Deodorant textile material and its manufacturing method |
| KR100575486B1 (en) * | 2000-02-23 | 2006-05-03 | 오쯔까 가가꾸 가부시키가이샤 | Deodorizing composition |
-
2003
- 2003-01-16 CN CNB031004938A patent/CN100553758C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104562695A (en) * | 2015-01-28 | 2015-04-29 | 苏州爱立方服饰有限公司 | Halogen-free flame-retardant finishing agent and preparation method thereof |
| CN105536736A (en) * | 2016-01-21 | 2016-05-04 | 河南省安克林滤业有限公司 | Formula of waste gas filtering material |
| CN106010650A (en) * | 2016-05-12 | 2016-10-12 | 辽宁凯迈石化有限公司 | Compound refining method of paraffin |
| CN107262029A (en) * | 2017-06-14 | 2017-10-20 | 昆明理工大学 | A kind of high flame retardant carbon-supported catalyst and preparation method thereof |
| CN107915223A (en) * | 2017-12-22 | 2018-04-17 | 海安常州大学高新技术研发中心 | A kind of preparation method of fire-retardant silica and absorbent charcoal composite material |
| CN111794629A (en) * | 2020-07-08 | 2020-10-20 | 江西远大保险设备实业集团有限公司 | Fireproof heat-insulation type safe and manufacturing process thereof |
| CN113750963A (en) * | 2021-09-13 | 2021-12-07 | 苏州克拉克森活性炭有限公司 | Flame-retardant high-iodine-value honeycomb activated carbon and preparation process thereof |
| CN113750963B (en) * | 2021-09-13 | 2024-06-11 | 苏州克拉克森活性炭有限公司 | Flame-retardant high-iodine value honeycomb activated carbon and preparation process thereof |
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| Publication number | Publication date |
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| CN100553758C (en) | 2009-10-28 |
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