CN104909365A - Method for promoting asphalt sphere oxidation without melting - Google Patents
Method for promoting asphalt sphere oxidation without melting Download PDFInfo
- Publication number
- CN104909365A CN104909365A CN201510312043.8A CN201510312043A CN104909365A CN 104909365 A CN104909365 A CN 104909365A CN 201510312043 A CN201510312043 A CN 201510312043A CN 104909365 A CN104909365 A CN 104909365A
- Authority
- CN
- China
- Prior art keywords
- asphalt
- obtains
- bitumen ball
- oxidized
- bitumen
- 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
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Working-Up Tar And Pitch (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The invention discloses a method for promoting asphalt sphere oxidation without melting. The method comprises the following steps: uniformly mixing asphalt, naphthalene and an accelerant to react for 1-5 hours at 200-300 DEG C, thereby obtaining modified asphalt; crushing and screening the modified asphalt so as to obtain asphalt grains of 1.1-2.5mm, adding the asphalt grains into a 1-5wt% polyving alcohol solution, and stirring for 0.5-3 hours at 90-150 DEG C, thereby obtaining asphalt spheres; subsequently in the air atmosphere, heating to 230-280 DEG C from the room temperature at a certain heating velocity, and keeping the temperature for 0.5-2 hours, thereby obtaining oxidized asphalt spheres, and furthermore performing carbonization activation on the oxidized asphalt spheres by using an ordinary method, thereby obtaining a product. The method has the advantages that no heteroatom is retained, the surface is smooth, the strength is high, and asphalt sphere oxidation without melting can be remarkably improved.
Description
Technical field
The oxidation that the invention belongs to bitumen ball does not melt preparation method, relates in particular to a kind of bitumen ball and is oxidized nonfused promotion method.
Background technology
Be that raw material is prepared spheric active carbon and belonged to high-tech with pitch, its preparation process is complicated, difficulty is large, cause its high expensive, limit range of application, and make the oxidation not thawing step of the bitumen ball of the key of its high expensive, this step needs to adopt air to carry out double diffusion oxidative condensation extremely slowly to it and is cross-linked certain embodiments, bitumen ball in a lot of situation after gained oxidation presents be full of cracks, even splits, has a strong impact on the preparation of follow-up spheric active carbon.
Some patents are carried out the work for the oxidation of pitch fibers is non-fusible, as United States Patent (USP) 3392216, examined patent publication 43-893, examined patent publication 46-37786 etc. adopt oxidizing gas as 0
2, O
3, SO
3, NO
2or air, and HNO
3, K
4mnO
4do not melt process Deng solution, but due to the raw material in these patents be the fiber being directly only 10-20 microns, be oxidized nonfused process and do not melt more than the oxidation of millimetre-sized bitumen ball easily a lot;
Application number is adopt oxidizing gas as 0 in " preparing the method for ball shape active carbon " of 200410100531.4
2, O
3, SO
3, NO
2or air is oxidized bitumen ball and does not melt process, required time is at least on 7.5h;
The time of English Patent GB1468982 to the oxidation cure treatment of bitumen ball also reaches 15-20h;
Adopt the method for adding sulphur or naphthoquinones to promote that the oxidation of bitumen ball is not melted in the publication number CN1156123A method of non-melting process of asphalt balls " promote ", but the sulphur adopted is due to will with SO in oxidising process
2or SO
3mode overflow, cause environmental pollution, also likely cause the corrosion of equipment simultaneously; In addition, sulphur also may remain in final gac ball, affects the range of application of product.
Application number 201110108729 " a kind of preparation method of the asphalt-base spherical activated carbon without the need to not molten treatment process ", by the powder pitch of high softening-point and powdered carbon and binding agent and make the particle of diameter in the spheroidal of 0.5mm ~ 5mm at normal temperatures, directly enter in pitch charring furnace and prepare ball charcoal, although avoid the oxidation not thawing step of pitch, but the ratio of added powdered carbon is up to 34% ~ 79%, can only pass through mechanical granulation process balling-up, the specific surface area of gained gac like this is not high.
Summary of the invention
The object of this invention is to provide and a kind ofly can significantly promote bitumen ball to be oxidized not melt and the high bitumen ball of the specific surface area of its activated carbon product is oxidized nonfused promotion method.
Preparation technology of the present invention is as follows:
(1) preparation of modifying asphalt: be 1:(0.2-0.4 by mass ratio): after the high softening point bitumen of (0.01-0.2), naphthalene, promotor Homogeneous phase mixing, in 200-300 DEG C of reaction 1-5h, obtain modifying asphalt;
(2) preparation of bitumen ball: modifying asphalt obtains 1.1-2.5mm pitch particle after crushing and screening, joining containing concentration is afterwards in the autoclave of 1-5wt% polyvinyl alcohol water solution, wherein the quality of polyvinyl alcohol is the 5-15% of pitch, at 90-150 DEG C, stir 0.5-3h, obtain bitumen ball; Concrete preparation method carries out according to CN97101617.8 " a kind of preparation method of spheric active carbon ";
(3) oxidation of bitumen ball is not melted: under air atmosphere, with 100-240 DEG C/h temperature rise rate from room temperature to 230-280 DEG C, stops 0.5-2h, obtains oxidized bitumen ball;
(4) carbonization-activation of ball is oxidized: with 3-10 DEG C/min temperature rise rate DEG C stop 0.5-2h from room temperature to 800-1000 in an inert atmosphere, water vapour or CO2 is switched to activate 1-5h afterwards, obtain product, concrete preparation method carries out according to CN97101617.8 " a kind of preparation method of spheric active carbon ".
Promotor as above is one or both mixtures in Resorcinol, Phloroglucinol, durol, 1,3-bisnaphthol, 2,6-bisnaphthols and adjacent methyl hydroquinone.
The ratio of two kinds of promotor as above is mass ratio 1:1-3:1.
The softening point range of high softening point bitumen as above is 200-300 DEG C.
Advantage of the present invention:
Adding of 1 promotor, grade bead can be made to complete oxidation smoothly and not melt, overcome grade bead in the past especially diameter do not melt in the be full of cracks of more than 1mm bead after oxidation is not melted or bank and be difficult to carry out.
2 owing to have employed promotor, and the nonfused temperature of oxidation can be made significantly to reduce, and be oxidized the nonfused time and greatly shorten.Like this, the preparation cost of asphalt-base globular active carbon can significantly decline.
3 are all made up of carbon, oxygen and hydrogen due to promotor, in pitch, do not introduce other heteroatomss, can not produce the factor of corrosion or some other performances of product, be beneficial to the expansion of product application scope when ensure that subsequent disposal.
Embodiment
Embodiment 1
Be after 300 DEG C of softening point asphalts of 1:0.2:0.01, naphthalene, Resorcinol Homogeneous phase mixing by mass ratio, in 300 DEG C of reaction 1h, obtain modifying asphalt; Modifying asphalt obtains 1.1mm pitch particle after crushing and screening, and joining containing concentration is afterwards in the aqueous solution of 1wt% polyvinyl alcohol, and wherein the quality of polyvinyl alcohol is 5% of pitch, at 150 DEG C, stir 0.5h, obtains bitumen ball; Under air atmosphere, bitumen ball from room temperature to 280 DEG C, stops 0.5h with 100 DEG C/h temperature rise rate, obtains oxidized bitumen ball; Air is switched to N
2after with 10 DEG C/min temperature rise rate from room temperature to 1000 DEG C stop 0.5h, switch to steam activation 1h afterwards, obtain product.
The specific surface area of this product is 1320m
2/ g, sphere diameter is between 1.0-1.2mm.
Embodiment 2
Be after 200 DEG C of softening point asphalts of 1:0.4:0.2, naphthalene, Phloroglucinol Homogeneous phase mixing by mass ratio, in 200 DEG C of reaction 5h, obtain modifying asphalt; Modifying asphalt obtains 2mm pitch particle after crushing and screening, and joining containing concentration is afterwards in the aqueous solution of 5wt% polyvinyl alcohol, and wherein the quality of polyvinyl alcohol is 15% of pitch, at 90 DEG C, stir 3h, obtains bitumen ball; Under air atmosphere, bitumen ball from room temperature to 230 DEG C, stops 2h with 190 DEG C/h temperature rise rate, obtains oxidized bitumen ball; Air is switched to N
2after with 3 DEG C/min temperature rise rate from room temperature to 800 DEG C stop 2h, switch to steam activation 3h afterwards, obtain product.
The specific surface area of this product is 1450m
2/ g, sphere diameter is between 1.7-1.9mm.
Embodiment 3
Be after 250 DEG C of softening point asphalts of 1:0.3:0.05, naphthalene, durol Homogeneous phase mixing by mass ratio, in 250 DEG C of reaction 2h, obtain modifying asphalt; Modifying asphalt obtains 2.5mm pitch particle after crushing and screening, and joining containing concentration is afterwards in the aqueous solution of 3wt% polyvinyl alcohol, and wherein the quality of polyvinyl alcohol is 10% of pitch, at 110 DEG C, stir 3h, obtains bitumen ball; Under air atmosphere, bitumen ball from room temperature to 250 DEG C, stops 2h with 120 DEG C/h temperature rise rate, obtains oxidized bitumen ball; Air is switched to N
2after with 5 DEG C/min temperature rise rate from room temperature to 850 DEG C stop 1h, switch to CO afterwards
2activation 5h, obtains product.
The specific surface area of this product is 1380m
2/ g, sphere diameter is between 2.3-2.6mm.
Embodiment 4
Be after 280 DEG C of softening point asphalts of 1:0.25:0.1, naphthalene, 1,3-bisnaphthol Homogeneous phase mixing by mass ratio, in 290 DEG C of reaction 3h, obtain modifying asphalt; Modifying asphalt obtains 1.5mm pitch particle after crushing and screening, and joining containing concentration is afterwards in the aqueous solution of 4wt% polyvinyl alcohol, and wherein the quality of polyvinyl alcohol is 8% of pitch, at 125 DEG C, stir 2h, obtains bitumen ball; Under air atmosphere, bitumen ball from room temperature to 250 DEG C, stops 1.5h with 150 DEG C/h temperature rise rate, obtains oxidized bitumen ball; Air is switched to N
2after with 4 DEG C/min temperature rise rate from room temperature to 900 DEG C stop 0.5h, switch to CO afterwards
2activation 4h, obtains product.
The specific surface area of this product is 1520m
2/ g, sphere diameter is between 1.3-1.6mm.
Embodiment 5
Be after 200 DEG C of softening point asphalts of 1:0.35:0.15, naphthalene, 2,6-bisnaphthol Homogeneous phase mixing by mass ratio, in 220 DEG C of reaction 3h, obtain modifying asphalt; Modifying asphalt obtains 1.8mm pitch particle after crushing and screening, and joining containing concentration is afterwards in the aqueous solution of 3wt% polyvinyl alcohol, and wherein the quality of polyvinyl alcohol is 8% of pitch, at 95 DEG C, stir 1h, obtains bitumen ball; Under air atmosphere, bitumen ball from room temperature to 270 DEG C, stops 2h with 240 DEG C/h temperature rise rate, obtains oxidized bitumen ball; Air is switched to N
2after with 6 DEG C/min temperature rise rate from room temperature to 1000 DEG C stop 2h, switch to CO afterwards
2activation 3h, obtains product.
The specific surface area of this product is 1670m
2/ g, sphere diameter is between 1.7-1.9mm.
Embodiment 6
Be after 290 DEG C of softening point asphalts of 1:0.4:0.15, naphthalene, adjacent methyl hydroquinone Homogeneous phase mixing by mass ratio, in 270 DEG C of reaction 3h, obtain modifying asphalt; Modifying asphalt obtains 1.2mm pitch particle after crushing and screening, and joining containing concentration is afterwards in the aqueous solution of 2wt% polyvinyl alcohol, and wherein the quality of polyvinyl alcohol is 10% of pitch, at 90 DEG C, stir 2h, obtains bitumen ball; Under air atmosphere, bitumen ball from room temperature to 230 DEG C, stops 2h with 220 DEG C/h temperature rise rate, obtains oxidized bitumen ball; Air is switched to N
2after with 3 DEG C/min temperature rise rate from room temperature to 800 DEG C stop 3h, switch to steam activation 4h afterwards, obtain product.
The specific surface area of this product is 1480m
2/ g, sphere diameter is between 1.1-1.2mm.
Embodiment 7
Be after 260 DEG C of softening point asphalts of 1:0.28:0.08, naphthalene, Resorcinol and Phloroglucinol (mass ratio of the two is 1:1) Homogeneous phase mixing by mass ratio, in 280 DEG C of reaction 1h, obtain modifying asphalt; Modifying asphalt obtains 1.5mm pitch particle after crushing and screening, and joining containing concentration is afterwards in the aqueous solution of 3wt% polyvinyl alcohol, and wherein the quality of polyvinyl alcohol is 5% of pitch, at 140 DEG C, stir 0.5h, obtains bitumen ball; Under air atmosphere, bitumen ball from room temperature to 230 DEG C, stops 2h with 180 DEG C/h temperature rise rate, obtains oxidized bitumen ball; Air is switched to N
2after with 6 DEG C/min temperature rise rate from room temperature to 900 DEG C stop 0.5h, switch to CO afterwards
2activation 5h, obtains product.
The specific surface area of this product is 1630m
2/ g, sphere diameter is between 1.3-1.6mm.
Embodiment 8
Be after 260 DEG C of softening point asphalts of 1:0.33:0.03, naphthalene, durol and Phloroglucinol (mass ratio of the two is 3:1) Homogeneous phase mixing by mass ratio, in 250 DEG C of reaction 3h, obtain modifying asphalt; Modifying asphalt obtains 1.9mm pitch particle after crushing and screening, and joining containing concentration is afterwards in the aqueous solution of 1wt% polyvinyl alcohol, and wherein the quality of polyvinyl alcohol is 12% of pitch, at 125 DEG C, stir 1h, obtains bitumen ball; Under air atmosphere, bitumen ball from room temperature to 270 DEG C, stops 1h with 220 DEG C/h temperature rise rate, obtains oxidized bitumen ball; Air is switched to N
2after with 4 DEG C/min temperature rise rate from room temperature to 850 DEG C stop 1h, switch to steam activation 1h afterwards, obtain product.
The specific surface area of this product is 1440m
2/ g, sphere diameter is between 1.6-2.1mm.
Embodiment 9
Be after 240 DEG C of softening point asphalts of 1:0.2:0.05, naphthalene, 1,3-bisnaphthol and adjacent methyl hydroquinone (mass ratio of the two is 2:1) Homogeneous phase mixing by mass ratio, in 300 DEG C of reaction 1h, obtain modifying asphalt; Modifying asphalt obtains 1.3mm pitch particle after crushing and screening, and joining containing concentration is afterwards in the aqueous solution of 2wt% polyvinyl alcohol, and wherein the quality of polyvinyl alcohol is 8% of pitch, at 150 DEG C, stir 1h, obtains bitumen ball; Under air atmosphere, bitumen ball from room temperature to 260 DEG C, stops 1h with 150 DEG C/h temperature rise rate, obtains oxidized bitumen ball; Air is switched to N
2after with 3 DEG C/min temperature rise rate from room temperature to 880 DEG C stop 0.5h, switch to CO afterwards
2activation 5h, obtains product.
The specific surface area of this product is 1340m
2/ g, sphere diameter is between 1.1-1.3mm.
Embodiment 10
Be after 270 DEG C of softening point asphalts of 1:0.30:0.05, naphthalene, Resorcinol and 2,6-bisnaphthol (mass ratio of the two is 3:1) Homogeneous phase mixing by mass ratio, in 240 DEG C of reaction 2h, obtain modifying asphalt; Modifying asphalt obtains 1.7mm pitch particle after crushing and screening, and joining containing concentration is afterwards in the aqueous solution of 5wt% polyvinyl alcohol, and wherein the quality of polyvinyl alcohol is 8% of pitch, at 130 DEG C, stir 1h, obtains bitumen ball; Under air atmosphere, bitumen ball from room temperature to 260 DEG C, stops 1h with 120 DEG C/h temperature rise rate, obtains oxidized bitumen ball; Air is switched to N
2after with 5 DEG C/min temperature rise rate from room temperature to 950 DEG C stop 0.5h, switch to CO afterwards
2activation 3h, obtains product.
The specific surface area of this product is 1580m
2/ g, sphere diameter is between 1.6-1.8mm.
Comparative example (comparing with embodiment 10):
Be after 270 DEG C of softening point asphalts of 1:0.30, naphthalene Homogeneous phase mixing by mass ratio, in 240 DEG C of reaction 2h, obtain modifying asphalt; Modifying asphalt obtains 1.7mm pitch particle after crushing and screening, and joining containing concentration is afterwards in the aqueous solution of 5wt% polyvinyl alcohol, and wherein the quality of polyvinyl alcohol is 8% of pitch, at 130 DEG C, stir 1h, obtains bitumen ball; Under air atmosphere, bitumen ball from room temperature to 260 DEG C with 120 DEG C/h temperature rise rate, stops 2h, cannot obtain oxidized bitumen ball, be only bonded together and the pitch particle thing foamed; Therefore, follow-up carbonization-activation process cannot be carried out, also just not relevant product.
Claims (3)
1. bitumen ball is oxidized a nonfused promotion method, it is characterized in that following steps:
(1) preparation of modifying asphalt: be after the high softening point bitumen of 1:0.2-0.4:0.01-0.2, naphthalene, promotor Homogeneous phase mixing by mass ratio, in 200-300 DEG C of reaction 1-5h, obtains modifying asphalt;
(2) oxidation of bitumen ball is not melted: under air atmosphere, with 100-240 DEG C/h temperature rise rate from room temperature to 230-280 DEG C, stops 0.5-2h, obtains oxidized bitumen ball.
2. a kind of bitumen ball as claimed in claim 1 is oxidized nonfused promotion method, it is characterized in that described promotor is Resorcinol, Phloroglucinol, durol, 1, one or both mixtures in 3-bisnaphthol, 2,6-bisnaphthols and adjacent methyl hydroquinone.
3. a kind of bitumen ball as claimed in claim 1 is oxidized nonfused promotion method, it is characterized in that the ratio of two kinds of described accelerator mixtures is mass ratio 1-3:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510312043.8A CN104909365B (en) | 2015-06-09 | 2015-06-09 | Bitumen ball aoxidizes nonfused promotion method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510312043.8A CN104909365B (en) | 2015-06-09 | 2015-06-09 | Bitumen ball aoxidizes nonfused promotion method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104909365A true CN104909365A (en) | 2015-09-16 |
| CN104909365B CN104909365B (en) | 2017-12-19 |
Family
ID=54078878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510312043.8A Active CN104909365B (en) | 2015-06-09 | 2015-06-09 | Bitumen ball aoxidizes nonfused promotion method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104909365B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106350089A (en) * | 2016-08-30 | 2017-01-25 | 中国科学院山西煤炭化学研究所 | Process for preparing asphalt spheres by aid of continuous methods |
| CN106883622A (en) * | 2017-03-14 | 2017-06-23 | 西安润格环保科技有限公司 | Prepare the method and device of the high softening point bitumen melt containing additive |
| CN109019591A (en) * | 2018-09-25 | 2018-12-18 | 湖南曦威新材料有限公司 | Preparation method at low cost and with hierarchical pore structure asphalt-base spherical activated carbon |
| CN109609167A (en) * | 2018-11-30 | 2019-04-12 | 中国科学院山西煤炭化学研究所 | A method of promoting the pitch quickly oxidative stabilization of homogeneous |
| CN111422869A (en) * | 2020-03-04 | 2020-07-17 | 山西新华化工有限责任公司 | Preparation method for industrially improving crushing strength of asphalt balls |
| CN111500304A (en) * | 2020-04-17 | 2020-08-07 | 中国科学院山西煤炭化学研究所 | Pretreatment method for asphalt ball oxidation non-melting |
| CN111547721A (en) * | 2020-05-09 | 2020-08-18 | 中国铝业股份有限公司 | Preparation method of mesoporous activated carbon for supercapacitor |
| CN112142487A (en) * | 2020-09-22 | 2020-12-29 | 中国科学院山西煤炭化学研究所 | Microwave-assisted asphalt oxidation non-melting method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101259961A (en) * | 2008-04-10 | 2008-09-10 | 华东理工大学 | Method for preparing nitrogen-containing asphalt-base spherical activated carbon |
| CN102942945A (en) * | 2012-11-15 | 2013-02-27 | 四川创越炭材料有限公司 | Preparation method of soluble mesophase pitch |
| US20130209348A1 (en) * | 2012-02-09 | 2013-08-15 | Energ2 Technologies, Inc. | Preparation of polymeric resins and carbon materials |
| CN104030287A (en) * | 2014-07-09 | 2014-09-10 | 四川创越炭材料有限公司 | Spherical activated carbon and preparation method thereof |
| CN104276569A (en) * | 2014-10-21 | 2015-01-14 | 中国科学院山西煤炭化学研究所 | Method for improving crushing strength of asphalt-based spherical activated carbon |
-
2015
- 2015-06-09 CN CN201510312043.8A patent/CN104909365B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101259961A (en) * | 2008-04-10 | 2008-09-10 | 华东理工大学 | Method for preparing nitrogen-containing asphalt-base spherical activated carbon |
| US20130209348A1 (en) * | 2012-02-09 | 2013-08-15 | Energ2 Technologies, Inc. | Preparation of polymeric resins and carbon materials |
| CN102942945A (en) * | 2012-11-15 | 2013-02-27 | 四川创越炭材料有限公司 | Preparation method of soluble mesophase pitch |
| CN104030287A (en) * | 2014-07-09 | 2014-09-10 | 四川创越炭材料有限公司 | Spherical activated carbon and preparation method thereof |
| CN104276569A (en) * | 2014-10-21 | 2015-01-14 | 中国科学院山西煤炭化学研究所 | Method for improving crushing strength of asphalt-based spherical activated carbon |
Non-Patent Citations (2)
| Title |
|---|
| 智林杰等: "沥青流动性与炭收率的关系初探", 《新型炭材料》 * |
| 曹涛等: "对苯二酚改性沥青纤维不熔化研究", 《化工新型材料》 * |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106350089A (en) * | 2016-08-30 | 2017-01-25 | 中国科学院山西煤炭化学研究所 | Process for preparing asphalt spheres by aid of continuous methods |
| CN106350089B (en) * | 2016-08-30 | 2021-10-26 | 中国科学院山西煤炭化学研究所 | Process for preparing asphalt balls by continuous method |
| CN106883622A (en) * | 2017-03-14 | 2017-06-23 | 西安润格环保科技有限公司 | Prepare the method and device of the high softening point bitumen melt containing additive |
| CN106883622B (en) * | 2017-03-14 | 2020-11-10 | 孔亦周 | Method and device for producing high-softening-point bitumen melts containing additives |
| CN109019591A (en) * | 2018-09-25 | 2018-12-18 | 湖南曦威新材料有限公司 | Preparation method at low cost and with hierarchical pore structure asphalt-base spherical activated carbon |
| CN109019591B (en) * | 2018-09-25 | 2021-10-22 | 湖南曦威新材料有限公司 | Preparation method of asphalt-based spherical activated carbon with low cost and hierarchical pore structure |
| CN109609167A (en) * | 2018-11-30 | 2019-04-12 | 中国科学院山西煤炭化学研究所 | A method of promoting the pitch quickly oxidative stabilization of homogeneous |
| CN111422869A (en) * | 2020-03-04 | 2020-07-17 | 山西新华化工有限责任公司 | Preparation method for industrially improving crushing strength of asphalt balls |
| CN111500304A (en) * | 2020-04-17 | 2020-08-07 | 中国科学院山西煤炭化学研究所 | Pretreatment method for asphalt ball oxidation non-melting |
| CN111547721A (en) * | 2020-05-09 | 2020-08-18 | 中国铝业股份有限公司 | Preparation method of mesoporous activated carbon for supercapacitor |
| CN112142487A (en) * | 2020-09-22 | 2020-12-29 | 中国科学院山西煤炭化学研究所 | Microwave-assisted asphalt oxidation non-melting method |
| CN112142487B (en) * | 2020-09-22 | 2021-09-10 | 中国科学院山西煤炭化学研究所 | Microwave-assisted asphalt oxidation non-melting method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104909365B (en) | 2017-12-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104909365A (en) | Method for promoting asphalt sphere oxidation without melting | |
| EP4215567A1 (en) | Aqueous binder composition | |
| CN103787331A (en) | Preparation method of pitch-based spherical activated carbon with rich meso pores | |
| CN101259961A (en) | Method for preparing nitrogen-containing asphalt-base spherical activated carbon | |
| CN100396608C (en) | Method of preparing high specific surface area activated carbon with rich mesoporous | |
| CN102489320B (en) | Nanometer vanadium catalyst for preparing sulfuric acid through oxidizing SO2 and preparation method thereof | |
| CN108048957A (en) | A kind of preparation process of the activated carbon fiber of hollow structure | |
| CN101974200B (en) | Method for improving heat resistance of phenolic resin | |
| CN104559795A (en) | High-temperature-resistant rosin tackifying resin and preparation method thereof | |
| CN102363731B (en) | Method for increasing asphalt softening point | |
| CN110540854B (en) | Method for preparing asphalt-based oxidation ball | |
| CN105037655A (en) | Carbon gold composite floor and preparation method thereof | |
| CN105585856A (en) | Rubber asphalt mixture with high-temperature storage stability and preparation method thereof | |
| CN102199265A (en) | Long carbon chain nylon modified phenolic resin and preparation method thereof | |
| CN104276569A (en) | Method for improving crushing strength of asphalt-based spherical activated carbon | |
| CN102502624B (en) | Preparation method for acquiring spherical activated carbon of carbon dioxide | |
| CN108084964B (en) | Self-heating snow-melting agent and preparation method thereof | |
| CN108117760A (en) | A kind of charging system for electric automobile Acidproof cable material and preparation method thereof | |
| Wang et al. | Preparation of a carbon microsphere–based solid acid application to waste frying oil transesterification | |
| CN101367506A (en) | Method for preparing insoluble sulfur | |
| CN106318425B (en) | One kind micro mist containing naphthalene pitch prepares grade bitumen ball method | |
| CN103289719B (en) | Process for preparing asphalt sphere | |
| CN101348573B (en) | Preparation of spherical phenolic resin | |
| CN103881366A (en) | High temperature resistant nylon nano composite material and preparation method thereof | |
| CN115895037A (en) | Modified glass bead, preparation method thereof and modified glass bead composite material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |