CN102942181B - Preparation method of formed carbon-based material - Google Patents
Preparation method of formed carbon-based material Download PDFInfo
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- CN102942181B CN102942181B CN201210511114.3A CN201210511114A CN102942181B CN 102942181 B CN102942181 B CN 102942181B CN 201210511114 A CN201210511114 A CN 201210511114A CN 102942181 B CN102942181 B CN 102942181B
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- activated carbon
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- 239000003575 carbonaceous material Substances 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 title claims description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 39
- 239000002002 slurry Substances 0.000 claims abstract description 34
- 238000000034 method Methods 0.000 claims abstract description 25
- 239000007787 solid Substances 0.000 claims abstract description 19
- MVFCKEFYUDZOCX-UHFFFAOYSA-N iron(2+);dinitrate Chemical compound [Fe+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O MVFCKEFYUDZOCX-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000000498 ball milling Methods 0.000 claims abstract description 6
- 238000003756 stirring Methods 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 36
- 239000007789 gas Substances 0.000 claims description 15
- 238000010792 warming Methods 0.000 claims description 15
- 229910052799 carbon Inorganic materials 0.000 claims description 14
- 238000000465 moulding Methods 0.000 claims description 14
- 239000005995 Aluminium silicate Substances 0.000 claims description 12
- 229920001661 Chitosan Polymers 0.000 claims description 12
- PZZYQPZGQPZBDN-UHFFFAOYSA-N aluminium silicate Chemical compound O=[Al]O[Si](=O)O[Al]=O PZZYQPZGQPZBDN-UHFFFAOYSA-N 0.000 claims description 12
- 229910000323 aluminium silicate Inorganic materials 0.000 claims description 12
- 235000012211 aluminium silicate Nutrition 0.000 claims description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 10
- 239000011230 binding agent Substances 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 10
- 239000001301 oxygen Substances 0.000 claims description 10
- 229910052760 oxygen Inorganic materials 0.000 claims description 10
- 239000002994 raw material Substances 0.000 claims description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 5
- 239000013543 active substance Substances 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 5
- 239000007864 aqueous solution Substances 0.000 claims description 5
- 235000011089 carbon dioxide Nutrition 0.000 claims description 5
- 229910010272 inorganic material Inorganic materials 0.000 claims description 5
- 239000011147 inorganic material Substances 0.000 claims description 5
- 239000007769 metal material Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen(.) Chemical compound [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 5
- 238000010422 painting Methods 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims description 5
- 238000007711 solidification Methods 0.000 claims description 5
- 230000008023 solidification Effects 0.000 claims description 5
- 239000000758 substrate Substances 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000012986 modification Methods 0.000 abstract description 5
- 230000004048 modification Effects 0.000 abstract description 5
- 238000011161 development Methods 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 abstract description 4
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 239000012778 molding material Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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- Catalysts (AREA)
- Carbon And Carbon Compounds (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
一种成型碳基材料的制备方法，其特征是它包括以下步骤：（1）将粉末活性炭或颗粒活性炭球磨；(2）将球磨后的活性炭粉末与硝酸铁、硅酸铝、沥青和壳聚糖混合；（3）将上述浆料加热搅拌形成稳定的高含固量浆料；（4）将经步骤（3）处理后的浆料倒在载体的顶端面处，并将载体沿孔道方向垂直放置，或按载体孔道方向与垂直方向角度不大于30度垂直放置；随后使载体形成上下往复振动，振动频率为10～60Hz，振幅为1～10mm，在振动过程中，浆料在自重作用下被快速地均匀涂载到载体上，形成厚度为0.5～5mm的浆料层；（5）经四次升降温烘干处理即得本发明的成型碳基材料。本发明不仅能提高活性炭成型材料的空间接触面积，有效降低气流阻力，而且有利于进行表面改性等二次开发。A method for preparing a shaped carbon-based material, which is characterized in that it includes the following steps: (1) ball milling powdered activated carbon or granular activated carbon; (2) mixing the ball milled activated carbon powder with iron nitrate, aluminum silicate, pitch and Sugar mixing; (3) Heat and stir the above slurry to form a stable high solid content slurry; (4) Pour the slurry treated in step (3) on the top surface of the carrier, and place the carrier along the channel direction Place vertically, or place vertically according to the angle between the channel direction of the carrier and the vertical direction not greater than 30 degrees; then make the carrier vibrate up and down, the vibration frequency is 10-60Hz, and the amplitude is 1-10mm. During the vibration process, the slurry is under the action of its own weight. The bottom is quickly and evenly coated on the carrier to form a slurry layer with a thickness of 0.5-5mm; (5) After four times of heating and cooling, the shaped carbon-based material of the present invention is obtained. The invention can not only increase the space contact area of the activated carbon molding material, effectively reduce the airflow resistance, but also facilitate secondary development such as surface modification.
Description
Technical field
The present invention relates to a kind of preparation method of catalyzer, especially a kind of preparation method of activated carbon catalyst, specifically a kind of preparation method of moulding carbon-based material.
Background technology
As everyone knows, the carbon-based material take gac as representative has the advantages such as micropore is abundant, specific surface area is large, avtive spot is many, activity component load quantity is large, has extensive and important application in sorbing material, catalytic material.
The preparation source of gac is mainly coal and biomass; finished product form is generally crushed particles gac and cylindrical particle gac; to fill state work, tamped density is larger in actual applications, because the tamped density of packing layer easily causes greatly larger resistance to flow.
The application of gac is in the past used in the occasions such as adsorption cleaning waste water, waste gas, and because flow velocity is little, gac packing layer can not produce larger resistance.And the application trend of gac develops towards low temperature modification catalyzer and separating-purifying type sorbing material in recent years; now often under high flow rate or high-speed, work; if still adopt crushed particles gac or cylindrical particle gac, will produce compared with large resistance and easily cause application difficult.For this reason, just the carbon-based materials such as gac need to be made to the regular formed material of shape, when the space contact surface that improves active carbon forming material is long-pending, can effectively reduce gas-flow resistance, and this formed material is also convenient to carry out the Secondary Development Works such as surface modification.As can be seen here, the carbon-based materials such as gac are prepared as to formed material, there is obvious application advantage.Become the developing direction of New Type of Carbon sill.
Summary of the invention
The object of the invention is under high flow rate and high-speed job requirement, can produce the problem that easily causes application difficult compared with large resistance for existing activated carbon adsorption material, invent a kind of preparation method who the carbon-based materials such as gac is made to the moulding carbon-based material of the regular formed material of shape, when the space contact surface that improves active carbon forming material is long-pending, can effectively reduce gas-flow resistance, be convenient to carry out the Secondary Development Works such as surface modification simultaneously.
Technical scheme of the present invention is:
A preparation method for moulding carbon-based material, is characterized in that it comprises the following steps:
(1) Powdered Activated Carbon or granulated active carbon are milled to meso-position radius below 50 microns, and require the carbon element content in raw material gac to be not less than 85%;
(2) active carbon powder after ball milling is mixed with materials such as iron nitrate, pure aluminium silicate, pitch, chitosans, the mass ratio of mixing of materials is activity charcoal powder: iron nitrate: pure aluminium silicate: pitch: chitosan=(50 ~ 90): (1 ~ 5): (1 ~ 5): (4 ~ 20): (4 ~ 20), be that 10 ~ 30% the aqueous solution is heated to after 40 ~ 60 ℃ by containing alcohol concn, be modulated into solid content at 20% ~ 50% slurry with said mixture material;
(3) above-mentioned slurry is heated to 60 ~ 80 ℃, stirs 1.5-2.5 hour, form stable high solid content slurry;
(4) adopt monolithic porous honeycomb substrate, corrugated plate dst carrier or ripple silk net formula carrier as carrier, to be poured on through step (3) slurry after treatment the top end face place of carrier, and carrier is vertically placed along duct direction, or be not more than by carrier duct direction and vertical direction angle that 30 degree are vertical to be placed; Make subsequently carrier form up and down reciprocatingly vibration, vibrational frequency is 10 ~ 60 Hz, and amplitude is 1 ~ 10mm, and in vibration processes, slurry is evenly coated with and is downloaded on carrier rapidly under Gravitative Loads, the pulp layer that formation thickness is 0.5 ~ 5mm;
(5) carrier that above-mentioned painting has been carried to slurry is warming up to 120～140 ℃ with 8-12 ℃/min, is incubated 25～35 minutes, adopts air to advertise mode and heat in this process; Then be warming up to 280-320 ℃ with 15-25 ℃/min, be incubated 25～35 minutes, in this process, control the oxygen level of advertising in gas and be less than 5%; And then be warming up to 430-470 ℃ with 8-12 ℃/min, and be incubated 25～35 minutes, in this process, to control the oxygen level of advertising in gas and be less than 1%, protective gas can adopt nitrogen or carbonic acid gas; Then, be cooled to 130～170 ℃ with 15-25 ℃/min, naturally cool to subsequently room temperature, take out and become moulding carbon-based material.
Described iron nitrate is binding agent, and pure aluminium silicate is adhesive solidification agent, and pitch is binding agent and carbonized agent, and chitosan is tensio-active agent, and the molecular weight of described formulated slurry is between 2000 ~ 6000.
Described solid support material is inorganic materials or metallic substance.
The time that control carrier moves downward while up and down reciprocatingly vibration grows to few 5 times than the time moving upward.
Beneficial effect of the present invention:
Moulding carbon-based material of the present invention had both retained the essential property of raw material gac from material character, i.e. flourishing hole and specific surface area, simultaneously again owing to having a large amount of contacts area, has improved rate of mass transfer greatly, has improved needed reaction efficiency.
The inventive method is simple, easily manufactured, and cost is low.
The space contact surface that the present invention can not only improve active carbon forming material amasss, and effectively reduces gas-flow resistance, and is conducive to carry out the secondary development such as surface modification.
Embodiment
Below in conjunction with embodiment, the present invention is further illustrated.
Embodiment mono-.
A kind of preparation method of moulding carbon-based material is:
(1) 50kg Powdered Activated Carbon or granulated active carbon are milled to meso-position radius below 50 microns, and require the carbon element content in raw material gac to be not less than 85%.
(2) active carbon powder after ball milling being mixed with iron nitrate 1kg, pure aluminium silicate 1kg, pitch 4kg, chitosan 4 materials, is that 10% aqueous solution 96kg is heated to after 40 ℃ by containing alcohol concn, is modulated into solid content at 20% slurry with said mixture material.In above-mentioned material, iron nitrate is binding agent, and pure aluminium silicate is adhesive solidification agent, and pitch is binding agent and carbonized agent, and chitosan is tensio-active agent, and its molecular weight is between 2000 ~ 6000.
(3) by above-mentioned heating material to 60 ℃, stir 1.5 hours, form stable high solid content slurry.
(4) adopt monolithic porous honeycomb substrate or corrugated plate dst carrier or ripple silk net formula carrier, as solid support material, solid support material can be inorganic materials or metallic substance.Slurry in (3) is poured on to the top end face place of carrier, and carrier is vertically placed along duct direction, or be not more than by carrier duct direction and vertical direction angle that 30 degree are vertical to be placed.Make subsequently carrier form up and down reciprocatingly vibration, vibrational frequency is 10 ~ 60 Hz, and amplitude is 1 ~ 10mm, and mode of vibration is that the time moving downward is longer more than 5 times than the time moving upward.In this vibration processes, slurry is evenly coated with and is downloaded on carrier rapidly under Gravitative Loads, and thickness is between 0.5 ~ 5mm.
(5) carrier that above-mentioned painting has been carried to slurry is warming up to 120 ℃ with 8 ℃/min, is incubated 25 minutes, carries out air and advertise mode and heat in this process; Then be warming up to 280 ℃ with 15 ℃/min, be incubated 25 minutes, in this process, control the oxygen level of advertising in gas and be less than 5%; And then be warming up to 430 ℃ with 8 ℃/min, and be incubated 25 minutes, in this process, to control the oxygen level of advertising in gas and be less than 1%, protective gas can adopt nitrogen or carbonic acid gas.Then, be cooled to 130 ℃ with 15 ℃/min, naturally cool to subsequently room temperature, take out the carbon-based material that becomes moulding.
Embodiment bis-.
A kind of preparation method of moulding carbon-based material is:
(1) Powdered Activated Carbon or granulated active carbon 90kg are milled to meso-position radius below 50 microns, and require the carbon element content in raw material gac to be not less than 85%.
(2) active carbon powder after ball milling is mixed with materials such as iron nitrate 5kg, pure aluminium silicate 5kg, pitch 20kg, chitosans 20, be that 30% aqueous solution 140kg is heated to after 60 ℃ by containing alcohol concn, be modulated into solid content at 50% slurry with said mixture material.In above-mentioned material, iron nitrate is binding agent, and pure aluminium silicate is adhesive solidification agent, and pitch is binding agent and carbonized agent, and chitosan is tensio-active agent, and its molecular weight is between 2000 ~ 6000.
(3) by above-mentioned heating material to 80 ℃, stir 2.5 hours, form stable high solid content slurry.
(4) adopt monolithic porous honeycomb substrate or corrugated plate dst carrier or ripple silk net formula carrier, as solid support material, solid support material can be inorganic materials or metallic substance.Slurry in (3) is poured on to the top end face place of carrier, and carrier is vertically placed along duct direction, or be not more than by carrier duct direction and vertical direction angle that 30 degree are vertical to be placed.Make subsequently carrier form up and down reciprocatingly vibration, vibrational frequency is 10 ~ 60 Hz, and amplitude is 1 ~ 10mm, and mode of vibration is that the time moving downward is longer more than 5 times than the time moving upward.In this vibration processes, slurry is evenly coated with and is downloaded on carrier rapidly under Gravitative Loads, and thickness is between 0.5 ~ 5mm.
(5) carrier that above-mentioned painting has been carried to slurry is warming up to 140 ℃ with 12 ℃/min, is incubated 35 minutes, carries out air and advertise mode and heat in this process; Then be warming up to 320 ℃ with 25 ℃/min, be incubated 35 minutes, in this process, control the oxygen level of advertising in gas and be less than 5%; And then be warming up to 470 ℃ with 12 ℃/min, and be incubated 35 minutes, in this process, to control the oxygen level of advertising in gas and be less than 1%, protective gas can adopt nitrogen or carbonic acid gas.Then, be cooled to 170 ℃ with 25 ℃/min, naturally cool to subsequently room temperature, take out the carbon-based material that becomes moulding.
Embodiment tri-.
A kind of preparation method of moulding carbon-based material is:
(1) Powdered Activated Carbon or granulated active carbon 70kg are milled to meso-position radius below 50 microns, and require the carbon element content in raw material gac to be not less than 85%.
(2) active carbon powder after ball milling being mixed with iron nitrate 3, pure aluminium silicate 3, pitch 12, chitosan 12, is that 20% aqueous solution 185.7kg is heated to after 40 ~ 60 ℃ by containing alcohol concn, is modulated into solid content at 35% slurry with said mixture material.In above-mentioned material, iron nitrate is binding agent, and pure aluminium silicate is adhesive solidification agent, and pitch is binding agent and carbonized agent, and chitosan is tensio-active agent, and its molecular weight is between 2000 ~ 6000.
(3) by above-mentioned heating material to 60 ~ 80 ℃, stir 2 hours, form stable high solid content slurry.
(4) adopt monolithic porous honeycomb substrate or corrugated plate dst carrier or ripple silk net formula carrier, as solid support material, solid support material can be inorganic materials or metallic substance.Slurry in (3) is poured on to the top end face place of carrier, and carrier is vertically placed along duct direction, or be not more than by carrier duct direction and vertical direction angle that 30 degree are vertical to be placed.Make subsequently carrier form up and down reciprocatingly vibration, vibrational frequency is 10 ~ 60 Hz, and amplitude is 1 ~ 10mm, and mode of vibration is that the time moving downward is longer more than 5 times than the time moving upward.In this vibration processes, slurry is evenly coated with and is downloaded on carrier rapidly under Gravitative Loads, and thickness is between 0.5 ~ 5mm.
(5) carrier that above-mentioned painting has been carried to slurry is warming up to 130 ℃ with 10 ℃/min, is incubated 30 minutes, carries out air and advertise mode and heat in this process; Then be warming up to 300 ℃ with 20 ℃/min, be incubated 30 minutes, in this process, control the oxygen level of advertising in gas and be less than 5%; And then be warming up to 450 ℃ with 10 ℃/min, and be incubated 30 minutes, in this process, to control the oxygen level of advertising in gas and be less than 1%, protective gas can adopt nitrogen or carbonic acid gas.Then, be cooled to 150 ℃ with 20 ℃/min, naturally cool to subsequently room temperature, take out the carbon-based material that becomes moulding.
The part that the present invention does not relate to all prior art that maybe can adopt same as the prior art is realized.
Claims (3)
1. a preparation method for moulding carbon-based material, is characterized in that it comprises the following steps:
(1) granulated active carbon is milled to meso-position radius below 50 microns, and requires the carbon element content in raw material gac to be not less than 85%;
(2) active carbon powder after ball milling is mixed with iron nitrate, pure aluminium silicate, pitch, chitosan material, the mass ratio of mixing of materials is active carbon powder: iron nitrate: pure aluminium silicate: pitch: chitosan=(50 ~ 90): (1 ~ 5): (1 ~ 5): (4 ~ 20): (4 ~ 20), be that 10 ~ 30% the aqueous solution is heated to after 40 ~ 60 ℃ by containing alcohol concn, be modulated into solid content at 20% ~ 50% slurry with mixture;
(3) above-mentioned slurry is heated to 60 ~ 80 ℃, stirs 1.5-2.5 hour, form stable high solid content slurry;
(4) adopt monolithic porous honeycomb substrate, corrugated plate dst carrier or ripple silk net formula carrier as carrier, to be poured on through step (3) slurry after treatment the top end face place of carrier, and carrier is vertically placed along duct direction, or be not more than by carrier duct direction and vertical direction angle that 30 degree are vertical to be placed; Make subsequently carrier form up and down reciprocatingly vibration, vibrational frequency is 10 ~ 60 Hz, and amplitude is 1 ~ 10mm, and in vibration processes, slurry is evenly coated with and is downloaded on carrier rapidly under Gravitative Loads, the pulp layer that formation thickness is 0.5 ~ 5mm;
(5) carrier that painting has been carried to slurry is warming up to 120～140 ℃ with 8-12 ℃/min, is incubated 25～35 minutes, adopts air to advertise mode and heat in this process; Then be warming up to 280-320 ℃ with 15-25 ℃/min, be incubated 25～35 minutes, in this process, control the oxygen level of advertising in gas and be less than 5%; And then be warming up to 430-470 ℃ with 8-12 ℃/min, and be incubated 25～35 minutes, in this process, to control the oxygen level of advertising in gas and be less than 1%, protective gas can adopt nitrogen or carbonic acid gas; Then, be cooled to 130～170 ℃ with 15-25 ℃/min, naturally cool to subsequently room temperature, take out and become moulding carbon-based material.
2. method according to claim 1, is characterized in that iron nitrate is binding agent, and pure aluminium silicate is adhesive solidification agent, and pitch is binding agent and carbonized agent, and chitosan is tensio-active agent, and the molecular weight of formulated slurry is between 2000 ~ 6000.
3. method according to claim 1, is characterized in that solid support material is inorganic materials or metallic substance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210511114.3A CN102942181B (en) | 2012-12-04 | 2012-12-04 | Preparation method of formed carbon-based material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210511114.3A CN102942181B (en) | 2012-12-04 | 2012-12-04 | Preparation method of formed carbon-based material |
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| CN102942181A CN102942181A (en) | 2013-02-27 |
| CN102942181B true CN102942181B (en) | 2014-07-02 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1114481C (en) * | 2000-05-11 | 2003-07-16 | 中国科学院山西煤炭化学研究所 | Method for preparing active carbon for storing methane |
| CN1454840A (en) * | 2003-05-29 | 2003-11-12 | 中国科学院山西煤炭化学研究所 | High density high specific surface active carbon preparing method |
| CN101209839A (en) * | 2007-12-24 | 2008-07-02 | 中国科学院山西煤炭化学研究所 | A kind of preparation method of high-performance activated carbon |
| CN101218039A (en) * | 2005-07-07 | 2008-07-09 | 株式会社科特拉 | Device and method for coating base material |
-
2012
- 2012-12-04 CN CN201210511114.3A patent/CN102942181B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1114481C (en) * | 2000-05-11 | 2003-07-16 | 中国科学院山西煤炭化学研究所 | Method for preparing active carbon for storing methane |
| CN1454840A (en) * | 2003-05-29 | 2003-11-12 | 中国科学院山西煤炭化学研究所 | High density high specific surface active carbon preparing method |
| CN101218039A (en) * | 2005-07-07 | 2008-07-09 | 株式会社科特拉 | Device and method for coating base material |
| CN101209839A (en) * | 2007-12-24 | 2008-07-02 | 中国科学院山西煤炭化学研究所 | A kind of preparation method of high-performance activated carbon |
Non-Patent Citations (2)
| Title |
|---|
| 左宋林 等.活性炭及基材种类对活性炭成型物性能的影响.《南京林业大学学报》.2000,第24卷(第2期), |
| 活性炭及基材种类对活性炭成型物性能的影响;左宋林 等;《南京林业大学学报》;20000331;第24卷(第2期);55页倒数第3行至56页倒数第10行 * |
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