CN103695019A - Low energy one-step method for preparing asphalt balls - Google Patents
Low energy one-step method for preparing asphalt balls Download PDFInfo
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- CN103695019A CN103695019A CN201310657377.XA CN201310657377A CN103695019A CN 103695019 A CN103695019 A CN 103695019A CN 201310657377 A CN201310657377 A CN 201310657377A CN 103695019 A CN103695019 A CN 103695019A
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- bitumen
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- low energy
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Abstract
The invention relates to a low energy one-step method for preparing asphalt balls. The method comprises steps of directly adding high softening point asphalt, naphthaline, dispersing agent and water into a normal pressure reaction kettle according to weight ratio of 1:(0.35-0.5):(0.01-0.3):(20-40), rising temperature up to 75-95DEG C at stirring rate of 200-500rpm, keeping warm for 1-5 hours at the temperature, then separating solid and liquid directly without cooling down so as to obtain the asphalt balls. The one-step method has the advantages of directly preparing the asphalt balls by one step, having low equipment cost due to the use of normal pressure reaction kettle, and having high safety and low energy consumption.
Description
Technical field
The invention belongs to a kind of technology of preparing of bitumen ball, relate to specifically the technology that bitumen ball is prepared in a kind of single stage method emulsification.
Background technology
Asphalt-base globular active carbon belongs to high performance gac all has application in various fields.Its presoma of preparing is pitch, and the latter further becomes bitumen ball could prepare spheric active carbon.Therefore the preparation of bitumen ball is necessary.
The patent that the pitch of take is prepared spheric active carbon as presoma is more, in Chinese invention patent 201010143602 " a kind of preparation method of bitumen ball ", by mixing with high softening point bitumen after viscosity depressant melting, obtain modulation pitch in advance, this pitch enters under the liquid level of suspension medium by the stirring balling-up of heating afterwards, has also at least adopted 2 steps just to obtain bitumen ball, after adopting solidifying agent first evenly to mix with high softening point bitumen in Chinese invention patent 201210317727 " the less energy-consumption preparation method of asphalt-base spherical activated carbon ", join in the polyvinyl alcohol solution of 80-95 ℃ and stir, further transfer to afterwards and in water heating kettle, at 120-160 ℃, react 3-6.5h and just obtain bitumen ball, other Chinese invention patent " is rich in the preparation method of the asphalt-base globular active carbon of mesopore " as patent 03178572, patent 200410100531 " method of preparing spherical activated carbon ", patent 200610127621 " a kind of method of preparing the ball shape active carbon that heavy metal content is low ", patent 200810035853 " a kind of preparation method of nitrogen-containing asphalt-base spherical activated " and patent 201210317727 " the low power consuming preparation method of asphalt-base spherical activated carbon " etc. all adopt and obtain bitumen ball more than methods more than 2 steps, and the temperature of preparation bitumen ball is all more than 100 ℃, energy consumption is higher, need autoclave.
Summary of the invention
The object of this invention is to provide a kind of in normal-pressure reaction kettle single stage method less energy-consumption directly make the technology of bitumen ball.
The present invention realizes as follows:
By the weight ratio of high softening point bitumen, naphthalene, dispersion agent and water, be 1:(0.35-0.5): (0.01-0.3): (20-40), high softening point bitumen, naphthalene, dispersion agent and water are directly added in normal-pressure reaction kettle, in stir speed (S.S.), be to be warmed up to 75-95 ℃ under 200-500 rev/min, in this temperature, stop 1-5h, then without cooling, can directly carry out solid-liquid separation, obtain bitumen ball.
High softening point bitumen of the present invention is that softening temperature is the hard pitch of 230～290 ℃.
Dispersion agent of the present invention is polyvinyl alcohol, polyoxyethylene glycol or octadecyl sodium sulfonate.
Advantage of the present invention:
1, adopt single stage method directly to obtain bitumen ball, and conversion unit is normal-pressure reaction kettle, equipment cost is low, safe;
2,, owing to reacting at lesser temps, therefore energy consumption is low, be beneficial to reduction product cost.
Embodiment
Embodiment 1
The softening temperature that weight ratio is respectively to 1:0.35:0.01:20 is that pitch, naphthalene, the polyethylene alcohol and water of 230 ℃ directly adds in reactor, in stir speed (S.S.), be under 200 revs/min, to be warmed up to 75 ℃ and stop 5h, then without cooling, directly carry out solid-liquid separation, obtain that sphere diameter 1.3-1.5mm reaches 89%, sphericity reaches 95% bitumen ball.
Embodiment 2
The softening temperature that weight ratio is respectively to 1:0.4:0.1:30 is that pitch, naphthalene, octadecyl sodium sulfonate and the water of 280 ℃ directly adds in reactor, in stir speed (S.S.), be under 300 revs/min, to be warmed up to 80 ℃ and stop 3h, then without cooling, directly carry out solid-liquid separation, obtain that sphere diameter 0.8-1.1mm reaches 92%, sphericity reaches 92% bitumen ball.
Embodiment 3
The softening temperature that weight ratio is respectively to 1:0.5:0.3:40 is that pitch, naphthalene, polyoxyethylene glycol and the water of 290 ℃ directly adds in reactor, in stir speed (S.S.), be under 500 revs/min, to be warmed up to 95 ℃ and stop 4h, then without cooling, directly carry out solid-liquid separation, obtain that sphere diameter 0.3-0.5mm reaches 95%, sphericity reaches 98% bitumen ball.
Embodiment 4
The softening temperature that weight ratio is respectively to 1:0.45:0.08:25 is that pitch, naphthalene, the polyethylene alcohol and water of 250 ℃ directly adds in reactor, in stir speed (S.S.), be under 450 revs/min, to be warmed up to 80 ℃ and stop 2h, then without cooling, directly carry out solid-liquid separation, obtain that sphere diameter 0.5-0.8mm reaches 94%, sphericity reaches 96% bitumen ball.
Embodiment 5
The softening temperature that weight ratio is respectively to 1:0.5:0.2:35 is that pitch, naphthalene, polyoxyethylene glycol and the water of 265 ℃ directly adds in reactor, in stir speed (S.S.), be under 250 revs/min, to be warmed up to 75 ℃ and stop 3h, then without cooling, directly carry out solid-liquid separation, obtain that sphere diameter 0.8-1.1mm reaches 90%, sphericity reaches 90% bitumen ball.
Embodiment 6
The softening temperature that weight ratio is respectively to 1:0.4:0.2:30 is that pitch, naphthalene, octadecyl sodium sulfonate and the water of 255 ℃ directly adds in reactor, in stir speed (S.S.), be under 350 revs/min, to be warmed up to 80 ℃ and stop 1h, then without cooling, directly carry out solid-liquid separation, obtain that sphere diameter 1.0-1.2mm reaches 91%, sphericity reaches 90% bitumen ball.
Claims (3)
1. the technology of bitumen ball is prepared in single stage method less energy-consumption, it is characterized in that comprising the steps:
By the weight ratio of high softening point bitumen, naphthalene, dispersion agent and water, be 1:0.35-0.5:0.01-0.3:20-40, high softening point bitumen, naphthalene, dispersion agent and water are directly added in normal-pressure reaction kettle, in stir speed (S.S.), be to be warmed up to 75-95 ℃ under 200-500 rev/min, in this temperature, stop 1-5h, then without cooling, can directly carry out solid-liquid separation, obtain bitumen ball.
2. the technology of bitumen ball is prepared in single stage method less energy-consumption as claimed in claim 1, it is characterized in that described high softening point bitumen is that softening temperature is the hard pitch of 230～290 ℃.
3. the technology of bitumen ball is prepared in single stage method less energy-consumption as claimed in claim 1, it is characterized in that described dispersion agent is polyvinyl alcohol, polyoxyethylene glycol or octadecyl sodium sulfonate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310657377.XA CN103695019B (en) | 2013-12-09 | 2013-12-09 | Low energy one-step method for preparing asphalt balls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310657377.XA CN103695019B (en) | 2013-12-09 | 2013-12-09 | Low energy one-step method for preparing asphalt balls |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103695019A true CN103695019A (en) | 2014-04-02 |
| CN103695019B CN103695019B (en) | 2015-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310657377.XA Active CN103695019B (en) | 2013-12-09 | 2013-12-09 | Low energy one-step method for preparing asphalt balls |
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Cited By (3)
| 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 |
| CN109135791A (en) * | 2018-10-24 | 2019-01-04 | 山西新华化工有限责任公司 | Industrialized pitch melts and the preparation method of balling-up |
| CN113562721A (en) * | 2021-08-20 | 2021-10-29 | 北京化工大学 | Preparation method and application of asphalt-based carbon microspheres |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3917806A (en) * | 1973-09-27 | 1975-11-04 | Kureha Chemical Ind Co Ltd | Method for the preparation of carbon moldings and activated carbon molding therefrom |
| GB1468982A (en) * | 1973-10-29 | 1977-03-30 | Kureha Chemical Ind Co Ltd | Process for production of activated carbon spheres |
| CN1188136A (en) * | 1997-01-17 | 1998-07-22 | 中国科学院山西煤炭化学研究所 | Method for preparing narrow size distribution asphalt ball |
| CN101792678A (en) * | 2010-04-07 | 2010-08-04 | 中国海洋石油总公司 | Preparation method of bitumen balls |
| CN103289719A (en) * | 2013-06-08 | 2013-09-11 | 中国科学院山西煤炭化学研究所 | Process for preparing asphalt sphere |
-
2013
- 2013-12-09 CN CN201310657377.XA patent/CN103695019B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3917806A (en) * | 1973-09-27 | 1975-11-04 | Kureha Chemical Ind Co Ltd | Method for the preparation of carbon moldings and activated carbon molding therefrom |
| GB1468982A (en) * | 1973-10-29 | 1977-03-30 | Kureha Chemical Ind Co Ltd | Process for production of activated carbon spheres |
| CN1188136A (en) * | 1997-01-17 | 1998-07-22 | 中国科学院山西煤炭化学研究所 | Method for preparing narrow size distribution asphalt ball |
| CN101792678A (en) * | 2010-04-07 | 2010-08-04 | 中国海洋石油总公司 | Preparation method of bitumen balls |
| CN103289719A (en) * | 2013-06-08 | 2013-09-11 | 中国科学院山西煤炭化学研究所 | Process for preparing asphalt sphere |
Cited By (4)
| 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 |
| CN109135791A (en) * | 2018-10-24 | 2019-01-04 | 山西新华化工有限责任公司 | Industrialized pitch melts and the preparation method of balling-up |
| CN113562721A (en) * | 2021-08-20 | 2021-10-29 | 北京化工大学 | Preparation method and application of asphalt-based carbon microspheres |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103695019B (en) | 2015-04-29 |
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