CN106701134A - Production method of high-quality petroleum-based impregnated pitch - Google Patents
Production method of high-quality petroleum-based impregnated pitch Download PDFInfo
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- CN106701134A CN106701134A CN201510800605.3A CN201510800605A CN106701134A CN 106701134 A CN106701134 A CN 106701134A CN 201510800605 A CN201510800605 A CN 201510800605A CN 106701134 A CN106701134 A CN 106701134A
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- Prior art keywords
- impregnating pitch
- oil
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- reaction
- solvent
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Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 239000003208 petroleum Substances 0.000 title claims abstract description 11
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000005977 Ethylene Substances 0.000 claims abstract description 20
- 238000002156 mixing Methods 0.000 claims abstract description 19
- 239000002994 raw material Substances 0.000 claims abstract description 19
- 238000005336 cracking Methods 0.000 claims abstract description 5
- 238000000746 purification Methods 0.000 claims abstract description 5
- 238000007670 refining Methods 0.000 claims abstract description 3
- 239000002002 slurry Substances 0.000 claims abstract 2
- 238000006243 chemical reaction Methods 0.000 claims description 41
- 239000002904 solvent Substances 0.000 claims description 30
- 230000003197 catalytic effect Effects 0.000 claims description 18
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 6
- SMWDFEZZVXVKRB-UHFFFAOYSA-N Quinoline Chemical compound N1=CC=CC2=CC=CC=C21 SMWDFEZZVXVKRB-UHFFFAOYSA-N 0.000 claims description 6
- 230000035484 reaction time Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 4
- 238000005406 washing Methods 0.000 claims description 4
- 238000004939 coking Methods 0.000 claims description 3
- 239000000470 constituent Substances 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 241000772415 Neovison vison Species 0.000 claims description 2
- 238000001914 filtration Methods 0.000 claims description 2
- 238000006116 polymerization reaction Methods 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 5
- 238000011161 development Methods 0.000 abstract description 3
- 239000000295 fuel oil Substances 0.000 abstract description 2
- 238000011031 large-scale manufacturing process Methods 0.000 abstract description 2
- 238000012719 thermal polymerization Methods 0.000 abstract description 2
- 238000004523 catalytic cracking Methods 0.000 abstract 1
- 238000000465 moulding Methods 0.000 abstract 1
- 239000000047 product Substances 0.000 description 40
- 239000003921 oil Substances 0.000 description 38
- 239000000706 filtrate Substances 0.000 description 19
- 239000000463 material Substances 0.000 description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 238000010792 warming Methods 0.000 description 6
- 239000010439 graphite Substances 0.000 description 4
- 229910002804 graphite Inorganic materials 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000007770 graphite material Substances 0.000 description 2
- 238000002386 leaching Methods 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 206010054949 Metaplasia Diseases 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000011203 carbon fibre reinforced carbon Substances 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000015689 metaplastic ossification Effects 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011331 needle coke Substances 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10C—WORKING-UP PITCH, ASPHALT, BITUMEN, TAR; PYROLIGNEOUS ACID
- C10C3/00—Working-up pitch, asphalt, bitumen
- C10C3/02—Working-up pitch, asphalt, bitumen by chemical means reaction
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10C—WORKING-UP PITCH, ASPHALT, BITUMEN, TAR; PYROLIGNEOUS ACID
- C10C3/00—Working-up pitch, asphalt, bitumen
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Working-Up Tar And Pitch (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The invention discloses a production method of high-quality petroleum-based impregnated pitch. According to the production method, heavy oils such as catalytic cracking slurry, ethylene cracking tar are taken as raw materials, and operations such as purification, blending, thermal polymerization, refining, molding and the like are performed on the raw materials, so that a high-quality petroleum-based impregnated pitch product is obtained. The high-quality petroleum-based impregnated pitch has the advantage of filling the domestic blank. The production method has the advantages of extensive raw material source and low price, low cost of the produced high-quality petroleum-based impregnated pitch product can be ensured, large-scale production of the high-quality petroleum-based impregnated pitch can be realized, and sustainable development can be realized.
Description
Technical field
The present invention relates to the manufacturing technology of special asphalt material, specifically a kind of high-quality oil leaching
The production method of stain pitch.
Technical background
Impregnating pitch at present in special graphite product, electrical carbon product, electron trade, new energy,
The sector applications such as new material are extensive, at present domestic special graphite product, new energy, new material
Etc. industry product quality is lifted in the urgent need to high-quality impregnating pitch product.
High-quality impregnating pitch is the catalytic cracked oil pulp with petroleum residual oil, ethylene cracking tar etc.
Heavy oil is raw material, and by purification of raw materials, mixing, reaction is refined, the production technology mistake such as shaping
Journey, obtains high-quality impregnating pitch.It is density and the benefit of high-quality carbon material and carbon product
Strong agent, is important basic industries raw material.High-quality impregnating pitch is widely used in metallurgy, electronics,
The civilian and national defences such as machinery, Aero-Space, new energy, nuclear industry, medicine, military project.
For example：1st, it is the basic material for producing high-quality carbon fiber, with low cost, quality better
Advantage；2nd, it be production high-quality coal measures, oil system, kerosene mixed stocker needle coke it is basic
Raw material；3rd, it is the indispensable raw material for putting forward high performance covering material of lithium cell negative pole material；
4th, it is that ultra high power graphite electrode produces necessary density raw material；5th, it is high-quality etc.
The density material and supporting material of static pressure graphite material；6th, for aircraft brake piece and nuclear reaction
The impregnated material and binding material of big specification isotropic graphite material, its purposes necessary to heap
It is quite varied and important.
Domestic high-quality impregnating pitch product cost is high at present, yields poorly, and external high-quality is produced
Product limitation outlet to China, causes current most domestic industry to substitute leaching using common mid temperature pitch
Stain pitch is used, and causes product quality unstable, high energy consumption, it is difficult to which meeting high-level use will
Ask, seriously hinder metallurgical industry, graphite industry, electron trade, machinery industry, nuclear industry,
The product up-gradation of the industries such as military project national defence and update.The present invention is exactly to be asked to solve this
Topic, fills the domestic gaps.Raw material sources of the present invention are extensively, cheap, can ensure that and produce
The product cost of the high-quality impregnating pitch for coming is low, realizes high-quality impregnating pitch scale metaplasia
Produce, realize sustainable development.
The content of the invention
It is an object of the invention to provide a kind of production method of high-quality petroleum impregnating pitch, with
Obtain steady quality, pickling efficiency high-quality impregnating pitch product high.
To reach above-mentioned purpose, the present invention relates to following steps, one is the purification of raw material,
Two is the mixing of raw material, and three is the selection control of reaction temperature and reaction pressure, and four is that height is obtained
The quality control of quality impregnating pitch.A kind of production method of high-quality petroleum impregnating pitch,
It is that with catalytic cracked oil pulp, the mink cell focus such as ethylene cracking tar is the purified technique of raw material, allotment,
Thermal polymerization, refines, and the operation such as shaping obtains high-quality oil impregnating pitch product, specific steps
It is as follows：
A) impregnating pitch purification of raw materials carries out purified treatment under the conditions of being 60 DEG C -100 DEG C in temperature,
After processing mode is to add solvent to be diluted, positive press filtration, ultra centrifugal separates what is be combined
Mode, all in random order for processing mode, can be adjusted according to the condition of production；Solvent is selected
Select methyl alcohol, C9 solvent naphthas, C10 solvent naphthas, one or more mixing in washing oil；
B) mixture of impregnating pitch raw material, is matched somebody with somebody using ethylene bottom oil and catalytic cracked oil pulp
Than mixed ratio is ethylene bottom oil 35 ± 5%, and catalytic cracked oil pulp 65 ± 5% can be in life
Mix in product equipment or used after carrying out on-line mixing；
C) at 260 DEG C -550 DEG C, reaction absolute pressure is the reaction temperature of impregnating pitch
3.5MPa to 6.5MPa；Reaction time was controlled at 0.5 to 8 hour；
D) obtained impregnating pitch softening point is not less than 100 DEG C after refining；Quinoline insolubles is less than
0.2%；Coking value is not less than 45%；Fugitive constituent is not more than 60%, and ash content is less than 0.1%.
Preferred scheme is：The reaction temperature of impregnating pitch is 360 DEG C, and reaction absolute pressure is
3.5MPa, the reaction time is 6 hours.
It is an advantage of the invention that：The present invention fills the domestic gaps.Raw material sources of the present invention are extensive,
It is cheap, can ensure that the product cost of the high-quality impregnating pitch produced is low, realize high
Quality impregnating pitch large-scale production, realizes sustainable development.
Brief description of the drawings
Fig. 1 is process chart of the invention.
Specific embodiment
With reference to example, the invention will be further described, with reference to Fig. 1；
Embodiment one takes 70 grams of catalytic cracked oil pulp, 35 grams of ethylene bottom oil, under the conditions of 60 DEG C
Purified treatment is carried out, adds solvent, this example to add C9 solvent naphthas to be diluted after mixing,
Filter to get filtrate, take filtrate and add autoclave, temperature is 260 DEG C, is reacted 6 hours, reaction
Pressure obtains reaction solution for 3.5MPa is reacted, and obtaining target by the refined miscellaneous component of removing impregnates
Asphaltic products, receives asphaltic products index and is shown in Table 1
Embodiment two takes 70 grams of catalytic cracked oil pulp, 30 grams of ethylene bottom oil, under the conditions of 80 DEG C
Purified treatment is carried out, adds solvent, this example to add C9 solvent naphthas to be diluted after mixing,
Filter to get filtrate, take filtered fluid and add autoclave, experiment preferable temperature is 360 DEG C, reaction 6
Hour, reaction pressure is 3.5MPa, reacted to obtain reaction solution, by refined miscellaneous group of removing
Get target impregnating pitch product, receive asphaltic products index and be shown in Table 1
Embodiment three takes 60 grams of catalytic cracked oil pulp, 40 grams of ethylene bottom oil, 100 DEG C of conditions
Under carry out purified treatment, add solvent after mixing, this example adds C10 solvent naphthas to be diluted,
Filter to get filtrate, take filtered fluid and add autoclave, temperature is 460 DEG C, reaction 8 hours, instead
Pressure is answered to obtain reaction solution for 3.5MPa is reacted, obtaining target by the refined miscellaneous component of removing soaks
Stain asphaltic products, receives asphaltic products index and is shown in Table 1
Example IV takes 65 grams of catalytic cracked oil pulp, 35 grams of ethylene bottom oil, under the conditions of 60 DEG C
Purified treatment is carried out, adds solvent, this example to add C9 solvent naphthas to be diluted after mixing,
Filter to get filtrate, take filtrate and add autoclave, temperature is 550 DEG C, is reacted 6 hours, reaction
Pressure is 3.5MPa, reacted to obtain reaction solution, and obtaining target by the refined miscellaneous component of removing soaks
Stain asphaltic products, receives asphaltic products index and is shown in Table 1
Embodiment five takes 60 grams of catalytic cracked oil pulp, 35 grams of ethylene bottom oil, under the conditions of 75 DEG C
Purified treatment is carried out, adds solvent, this example to add C9 solvent naphthas to be diluted after mixing,
After ultra centrifugal is separated, take filtrate and add autoclave, temperature is 360 DEG C, is reacted 2 hours,
Reaction pressure is 1.5MPa, reacted to obtain reaction solution, and mesh is obtained by the refined miscellaneous component of removing
Mark impregnating pitch product, receives asphaltic products index and is shown in Table 1
Embodiment six takes 62 grams of catalytic cracked oil pulp, 40 grams of ethylene bottom oil, under the conditions of 90 DEG C
Carry out purified treatment, add solvent after mixing, this example adds washing oil to be diluted, it is super from
The heart is separated, and is taken filtrate and is added autoclave, and temperature is 360 DEG C, is reacted 0.5 hour, reaction pressure
Power is 3.5MPa, reacted to obtain reaction solution, and obtaining target by the refined miscellaneous component of removing impregnates
Asphaltic products, receives asphaltic products index and is shown in Table 1
Embodiment seven takes 68 grams of catalytic cracked oil pulp, 33 grams of ethylene bottom oil, under the conditions of 60 DEG C
Purified treatment is carried out, solvent is added after mixing, it is dilute that this example adds C9, C10 solvent naphtha to carry out
Release, be warming up to 80 DEG C, ultra centrifugal is separated, take filtrate and add autoclave, temperature is 360
DEG C, to react 1 hour, reaction pressure is 5.5MPa, reacted to obtain reaction solution, by essence
The miscellaneous component of system removing obtains target impregnating pitch product, receives asphaltic products index and is shown in Table 1
Embodiment eight takes 64 grams of catalytic cracked oil pulp, 38 grams of ethylene bottom oil, under the conditions of 60 DEG C
Purified treatment is carried out, adds solvent, this example to add C10, washing oil mixed solvent oil after mixing
It is diluted, is warming up to 80 DEG C, ultra centrifugal is separated, and is filtered to get filtrate, takes filtrate addition
Autoclave, temperature is 360 DEG C, and during reaction 3, reaction pressure is 6MPa, reacted to obtain anti-
Liquid is answered, target impregnating pitch product is obtained by the refined miscellaneous component of removing, receive asphaltic products index
It is shown in Table 1
Embodiment nine takes 66 grams of catalytic cracked oil pulp, 36 grams of ethylene bottom oil, under the conditions of 85 DEG C
Purified treatment is carried out, adds solvent, this example to add C9 solvent naphthas to be diluted after mixing,
80 DEG C are warming up to, ultra centrifugal is separated, and is filtered to get filtrate, take filtrate and add autoclave, temperature
It is 500 DEG C to spend, and during reaction 6, reaction pressure is 4.5MPa, reacted to obtain reaction solution, warp
Cross the refined miscellaneous component of removing and obtain target impregnating pitch product, receive asphaltic products index and be shown in Table 1
Embodiment ten takes 61 grams of catalytic cracked oil pulp, 32 grams of ethylene bottom oil, under the conditions of 90 DEG C
Purified treatment is carried out, adds solvent, this example to add C9 solvent naphthas to be diluted after mixing,
80 DEG C are warming up to, ultra centrifugal is separated, and is filtered to get filtrate, take filtrate and add autoclave, temperature
It is 550 DEG C to spend, and during reaction 4, reaction pressure is 6.5MPa, reacted to obtain reaction solution, warp
Cross the refined miscellaneous component of removing and obtain target impregnating pitch product, receive asphaltic products index and be shown in Table 1
Embodiment 11 takes 68 grams of catalytic cracked oil pulp, 34 grams of ethylene bottom oil, 80 DEG C of conditions
Under carry out purified treatment, add solvent after mixing, this example adds C9 solvent naphthas to be diluted,
80 DEG C are warming up to, ultra centrifugal is separated, and is filtered to get filtrate, take filtrate and add autoclave, temperature
It is 480 DEG C to spend, and during reaction 6, reaction pressure is 3.5MPa, reacted to obtain reaction solution, warp
Cross the refined miscellaneous component of removing and obtain target impregnating pitch product, receive asphaltic products index and be shown in Table 1
Embodiment 12 takes 65 grams of catalytic cracked oil pulp, 32 grams of ethylene bottom oil, 75 DEG C of conditions
Under carry out purified treatment, add solvent after mixing, this example adds C9 solvent naphthas to be diluted,
80 DEG C are warming up to, ultra centrifugal is separated, and is filtered to get filtrate, take filtrate and add autoclave, temperature
It is 400 DEG C to spend, and during reaction 6, reaction pressure is that 2.0MPa is reacted obtains reaction solution, warp
Cross the refined miscellaneous component of removing and obtain target impregnating pitch product, receive asphaltic products index and be shown in Table 1
From examples detailed above, experimental result draws impregnating pitch in following condition：Temperature is 360 DEG C,
Pressure is 3.5, and the reaction time is 6 hours, and impregnating pitch product index is optimal, meets Gao Pin
The requirement of matter impregnating pitch.
The embodiment testing result of table 1
| Embodiment | Softening point/DEG C | Coking value/wt% | Quinoline insolubles/wt% | Fugitive constituent/wt% | Ash content/wt% |
| 1 | 118.6 | 25.35 | Can't check | 78.67 | 0.02 |
| 2 | 123.2 | 52.40 | 0.06 | 56.18 | 0.01 |
| 3 | 124.0 | 54.69 | 0.87 | 53.89 | 0.01 |
| 4 | 119.2 | 56.89 | 4.26 | 51.24 | 0.02 |
| 5 | 117.9 | 45.82 | 0.02 | 60.38 | 0.01 |
| 6 | 120.0 | 52.21 | 0.04 | 53.08 | 0.02 |
| 7 | 112.3 | 49.57 | 0.02 | 56.43 | Can't check |
| 8 | 119.5 | 49.92 | 0.03 | 56.02 | 0.01 |
| 9 | 116.4 | 50.22 | 0.18 | 55.87 | 0.01 |
| 10 | 118.7 | 51.83 | 0.12 | 54.27 | Can't check |
| 11 | 118.6 | 52.15 | 0.05 | 53.59 | 0.01 |
| 12 | 116.3 | 50.16 | 0.03 | 55.21 | 0.01 |
The preferred embodiment example of invention is the foregoing is only, is not intended to limit the invention, for this technology
For the technical staff in field, the present invention can have various changes and change.It is all in the spirit and principles in the present invention
Within, any modification made, equivalent, improve etc., should be included within the scope of the present invention.
Claims (2)
1. a kind of production method of high-quality petroleum impregnating pitch, it is characterised in that：It is to urge
It is the purified technique of raw material, allotment, hot polymerization to change the mink cell focuses such as cracking slurry oil, ethylene cracking tar
Close, refine, the operation such as shaping obtains high-quality oil impregnating pitch product, comprises the following steps that：
A) impregnating pitch purification of raw materials carries out purified treatment under the conditions of being 60 DEG C -100 DEG C in temperature,
After processing mode is to add solvent to be diluted, positive press filtration, ultra centrifugal separates what is be combined
Mode, all in random order for processing mode, can be adjusted according to the condition of production；Solvent is selected
Select methyl alcohol, C9 solvent naphthas, C10 solvent naphthas, one or more mixing in washing oil；
B) mixture of impregnating pitch raw material, is matched somebody with somebody using ethylene bottom oil and catalytic cracked oil pulp
Than mixed ratio is ethylene bottom oil 35 ± 5%, and catalytic cracked oil pulp 65 ± 5% can be in life
Mix in product equipment or used after carrying out on-line mixing；
C) at 260 DEG C -550 DEG C, reaction absolute pressure is the reaction temperature of impregnating pitch
3.5MPa to 6.5MPa；Reaction time was controlled at 0.5 to 8 hour；
D) obtained impregnating pitch softening point is not less than 100 DEG C after refining；Quinoline insolubles is less than
0.2%；Coking value is not less than 45%；Fugitive constituent is not more than 60%, and ash content is less than 0.1%.
2. method according to claim 1, it is characterised in that：The reaction temperature of impregnating pitch
It is 360 DEG C to spend, and reaction absolute pressure is 3.5MPa, and the reaction time is 6 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510800605.3A CN106701134B (en) | 2015-11-18 | 2015-11-18 | Production method of high-quality petroleum-series impregnating asphalt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510800605.3A CN106701134B (en) | 2015-11-18 | 2015-11-18 | Production method of high-quality petroleum-series impregnating asphalt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106701134A true CN106701134A (en) | 2017-05-24 |
| CN106701134B CN106701134B (en) | 2020-04-24 |
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ID=58933138
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510800605.3A Active CN106701134B (en) | 2015-11-18 | 2015-11-18 | Production method of high-quality petroleum-series impregnating asphalt |
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| Country | Link |
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| CN (1) | CN106701134B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107880921A (en) * | 2017-11-13 | 2018-04-06 | 辽宁奥亿达新材料有限公司 | A kind of petroleum Multifunctional asphalt resin and its manufacture method |
| CN110540855A (en) * | 2019-08-29 | 2019-12-06 | 中海沥青股份有限公司 | Petroleum-series impregnating asphalt and preparation method thereof |
| CN111925818A (en) * | 2020-08-14 | 2020-11-13 | 辽宁信德新材料科技股份有限公司 | Carbon fiber spinnable asphalt and preparation method and application thereof |
| CN114426852A (en) * | 2022-01-05 | 2022-05-03 | 中国石油化工股份有限公司 | High-softening-point asphalt and preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1262304A (en) * | 1999-01-31 | 2000-08-09 | 中国科学院山西煤炭化学研究所 | Process for preparing asphalt impregnant by pressurized heat treatment |
| CN101445740A (en) * | 2009-01-04 | 2009-06-03 | 北京石油化工学院 | A preparation method of dipping agent pitch |
-
2015
- 2015-11-18 CN CN201510800605.3A patent/CN106701134B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1262304A (en) * | 1999-01-31 | 2000-08-09 | 中国科学院山西煤炭化学研究所 | Process for preparing asphalt impregnant by pressurized heat treatment |
| CN101445740A (en) * | 2009-01-04 | 2009-06-03 | 北京石油化工学院 | A preparation method of dipping agent pitch |
Non-Patent Citations (1)
| Title |
|---|
| 黄启忠等: "《高性能炭 炭复合材料制备、结构与应用》", 31 December 2010, 中南大学出版社 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107880921A (en) * | 2017-11-13 | 2018-04-06 | 辽宁奥亿达新材料有限公司 | A kind of petroleum Multifunctional asphalt resin and its manufacture method |
| CN110540855A (en) * | 2019-08-29 | 2019-12-06 | 中海沥青股份有限公司 | Petroleum-series impregnating asphalt and preparation method thereof |
| CN111925818A (en) * | 2020-08-14 | 2020-11-13 | 辽宁信德新材料科技股份有限公司 | Carbon fiber spinnable asphalt and preparation method and application thereof |
| CN114426852A (en) * | 2022-01-05 | 2022-05-03 | 中国石油化工股份有限公司 | High-softening-point asphalt and preparation method and application thereof |
| CN114426852B (en) * | 2022-01-05 | 2023-03-10 | 中国石油化工股份有限公司 | High-softening-point asphalt and preparation method and application thereof |
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| Publication number | Publication date |
|---|---|
| CN106701134B (en) | 2020-04-24 |
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