CN101698948A - Method for manufacturing carbon anode with shot coke-containing petroleum coke - Google Patents
Method for manufacturing carbon anode with shot coke-containing petroleum coke Download PDFInfo
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- CN101698948A CN101698948A CN200910235983A CN200910235983A CN101698948A CN 101698948 A CN101698948 A CN 101698948A CN 200910235983 A CN200910235983 A CN 200910235983A CN 200910235983 A CN200910235983 A CN 200910235983A CN 101698948 A CN101698948 A CN 101698948A
- Authority
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- China
- Prior art keywords
- coke
- carbon anode
- shot
- shot coke
- powder
- Prior art date
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Links
- 239000000571 coke Substances 0.000 title claims abstract description 89
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 51
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000004519 manufacturing process Methods 0.000 title abstract description 15
- 239000002006 petroleum coke Substances 0.000 title abstract description 10
- 239000000843 powder Substances 0.000 claims abstract description 24
- 238000001354 calcination Methods 0.000 claims abstract description 18
- RQMIWLMVTCKXAQ-UHFFFAOYSA-N [AlH3].[C] Chemical compound [AlH3].[C] RQMIWLMVTCKXAQ-UHFFFAOYSA-N 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 7
- 238000000465 moulding Methods 0.000 claims description 5
- 238000005188 flotation Methods 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 2
- 239000002994 raw material Substances 0.000 abstract description 4
- 229910052782 aluminium Inorganic materials 0.000 abstract description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 2
- 239000010426 asphalt Substances 0.000 abstract 1
- 238000004898 kneading Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000010298 pulverizing process Methods 0.000 abstract 1
- 238000001179 sorption measurement Methods 0.000 abstract 1
- 238000010521 absorption reaction Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000010779 crude oil Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 241000272814 Anser sp. Species 0.000 description 1
- 102000002322 Egg Proteins Human genes 0.000 description 1
- 108010000912 Egg Proteins Proteins 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 239000011305 binder pitch Substances 0.000 description 1
- 239000002008 calcined petroleum coke Substances 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 210000004681 ovum Anatomy 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
Landscapes
- Carbon And Carbon Compounds (AREA)
- Coke Industry (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
The invention relates to a method for method for manufacturing carbon anode with shot coke-containing petroleum coke. The method is characterized of comprising the steps of: firstly calcining the shot coke-containing petroleum coke; pulverizing to prepare powder materials for manufacture the carbon anode; and kneading, forming and roasting to manufacture the aluminum used carbon anode. The method effectively solves the problems of low yield caused by bad asphalt adsorption property and easily broken carbon blocks when manufacturing the anode with coke-containing raw materials as the most grains of the shot coke are less and can not be effectively crushed. The method reasonably uses the shot coke-containing petroleum coke, widens the resources selection range of the carbon anode, and is good for maintaining the sustainability for manufacturing the carbon anodes.
Description
Technical field
The present invention relates to the method that a kind of utilization contains the refinery coke making carbon anode of shot coke.
Background technology
Along with the industrial large-sized prebaked cell The Application of Technology of aluminium, quality, the performance requriements of the heart-prebaked anode of electrolyzer also improved constantly.And adopt fine, meet the starting material that grade requires is to guarantee the stay-in-grade precondition of anode.
In recent years, because the variation of crude oil and the variation of oil refining process, caused and made that anodic refinery coke quality constantly reduces and the high-quality petroleum coke supply constantly day is becoming tight, one of distinct issues be exactly in the refinery coke the shared ratio of shot coke more and more higher.Shot coke claims ball shape Jiao, shot coke again, is to be the globular petroleum coke particles, and is big as the goose ovum, little of the grain of rice.This kind Jiao's characteristics are its compact structures, smooth surface, and hot expansibility is strong, and is very poor to the absorption property of binder pitch.The reason that produces shot coke is a lot, and the increase of recycle ratio, the raising of coking temperature, the reduction of pressure all can increase the content of shot coke in the refinery coke in the increasing of thick materialization, sulphur content and other foreign matter contents of crude oil, the oil refining process.Comparatively common shot coke among external import Jiao.The refinery coke that contains shot coke generally is used for fuel, but because it is very cheap to contain the refinery coke of shot coke, and,, contain a considerable amount of shot cokes sometimes in the refinery coke that many charcoal ink factories use in order to reduce production costs because anode is in short supply with refinery coke at present.Because the most of particle of shot coke is less, crusher can not be effectively broken with it, uses when containing the raw material production anode of shot coke, and poor to the bituminous absorption property, anode carbon block ftractures easily, causes yield rate to reduce.Falling piece, fall slag on crackle that the anode that the producer that has occurs is a large amount of and the electrolyzer, the refinery coke that contains shot coke with use is relevant.Therefore, its utilisation technology aspect anode of necessary research.
Summary of the invention
Purpose of the present invention is exactly the deficiency that exists at above-mentioned prior art, provide a kind of can effectively the solution to use when containing the raw material production anode of shot coke, poor to the bituminous absorption property, anode carbon block ftractures easily, causes the utilization of yield rate reduction problem to contain the method for the refinery coke making carbon anode of shot coke.
The objective of the invention is to be achieved through the following technical solutions.
A kind of utilization contains the method for the refinery coke making carbon anode of shot coke, it is characterized in that the refinery coke that its preparation process at first will contain shot coke calcines, wear into powder then, be used to make the powder of carbon anode, mix pinch, moulding and calcining process make aluminum carbon anode.
A kind of utilization of the present invention contains the method for the refinery coke making carbon anode of shot coke, it is characterized in that the calcining temperature that the described refinery coke that will contain shot coke carries out calcination process is 1200-1350 ℃.
A kind of utilization of the present invention contains the method for the refinery coke making carbon anode of shot coke, after it is characterized in that its refinery coke that contains shot coke is calcined, adopt the method for selection by winnowing, flotation or gravity treatment, shot coke is wherein separated, to isolate shot coke again and wear into powder, mix with isolated powder, be used to make the powder of carbon anode, mix pinch, moulding and calcining process make aluminum carbon anode.
A kind of utilization of the present invention contains the method for the refinery coke making carbon anode of shot coke, it is characterized in that described ground granularity is for to account for 40%-80% less than 200 purposes.
Method of the present invention efficiently solves because the most of particle of shot coke is less, and crusher can not be effectively broken with it, uses when containing the raw material production anode of shot coke, and poor to the bituminous absorption property, anode carbon block ftractures easily, causes yield rate to reduce problem.Rationally utilize the refinery coke that contains shot coke, widened carbon anode resource selection scope, helped the sustainability that keeps carbon anode to produce.
Embodiment
A kind of method of utilizing shot coke to make carbon anode, comprise following process: the refinery coke that at first will contain shot coke is calcined, and calcining temperature is 1200-1350 ℃, wears into powder then, is used to make the powder of carbon anode; Also the shot coke that contains in the calcined petroleum coke of shot coke can be separated with common Jiao, sorting method can be the method for selection by winnowing, flotation or gravity treatment, then the shot coke that sub-elects is made powder with ball mill, directly all or part of alternative common coke powder uses, as the carbon anode powder, mix pinch, operations such as moulding and roasting make aluminum carbon anode.All the other operations are made according to the conventional production process of carbon anode.
Embodiment 1
The calcining petroleum coke that will contain shot coke, calcining temperature are 1200 ℃.Wear into powder then, be used to make the powder of carbon anode.All the other operations are made aluminum carbon anode according to the conventional production process of carbon anode.Prepared carbon anode product: volume density 1.54g/cm
3, ultimate compression strength 36.3Mpa, resistivity 61.5 μ Ω m, true density 2.07g/cm
3, thermal conductivity 3.04/W. (m.K)
-1, CO
2Reactive residual rate 92.2%, air reactive residual rate 98.3%.
Embodiment 2
The calcining petroleum coke that will contain shot coke, calcining temperature are 1250 ℃.By air blast process the shot coke in the refinery coke is separated with common Jiao.Shot coke is made powder with ball mill, and the common coke powder of instead of part is made carbon anode, and the add-on of bullet coke powder is 50% (account for the per-cent of powder total amount, all the other is common coke powder).All the other operations are made aluminum carbon anode according to the conventional production process of carbon anode.Prepared carbon anode product: volume density 1.54g/cm
3, ultimate compression strength 35.45Mpa, resistivity 58.7 μ Ω m, true density 2.08g/cm
3, thermal conductivity 3.29/W. (m.K)
-1, CO
2Reactive residual rate 86.95%, air reactive residual rate 85%.
Embodiment 3
The calcining petroleum coke that will contain shot coke, calcining temperature are 1350 ℃.By flotation process the shot coke in the refinery coke is separated with common Jiao.Shot coke is made powder with ball mill, replaces whole common coke powders to make carbon anode, and promptly the add-on of bullet coke powder is 100% (accounting for the per-cent of powder total amount).All the other operations are made aluminum carbon anode according to the conventional production process of carbon anode.Prepared carbon anode product: volume density 1.55g/cm
3, ultimate compression strength 36.75Mpa, resistivity 60.5 μ Ω m, true density 2.06g/cm
3, thermal conductivity 3.09/W. (m.K)
-1, CO
2Reactive residual rate 89.6%, air reactive residual rate 72.4%.
Embodiment 4
The calcining petroleum coke that will contain shot coke, calcining temperature are 1300 ℃.By gravity separation method the shot coke in the refinery coke is separated with common Jiao.Shot coke is made powder with ball mill, and the common coke powder of instead of part is made carbon anode, and the add-on of bullet coke powder is 75% (account for the per-cent of powder total amount, all the other is common coke powder).All the other operations are made aluminum carbon anode according to the conventional production process of carbon anode.Prepared carbon anode product: volume density 1.54g/cm
3, ultimate compression strength 40.55Mpa, resistivity 58.1 μ Ω m, true density 2.07g/cm
3, thermal conductivity 3.43/W. (m.K)
-1, CO
2Reactive residual rate 92.9%, air reactive residual rate 90.5%.
Claims (4)
1. a utilization contains the method that the refinery coke of shot coke is made carbon anode, it is characterized in that the refinery coke that its preparation process at first will contain shot coke calcines, wear into powder then, be used to make the powder of carbon anode, mix pinch, moulding and calcining process make aluminum carbon anode.
2. a kind of utilization according to claim 1 contains the method for the refinery coke making carbon anode of shot coke, it is characterized in that the calcining temperature that the described refinery coke that will contain shot coke carries out calcination process is 1200-1350 ℃.
3. a kind of utilization according to claim 1 contains the method for the refinery coke making carbon anode of shot coke, after it is characterized in that its refinery coke that contains shot coke is calcined, adopt the method for selection by winnowing, flotation or gravity treatment, shot coke is wherein separated, to isolate shot coke again and wear into powder, mix with isolated powder, be used to make the powder of carbon anode, mix pinch, moulding and calcining process make aluminum carbon anode.
4. a kind of utilization according to claim 1 contains the method for the refinery coke making carbon anode of shot coke, it is characterized in that described ground granularity is for to account for 40-80% less than 200 purposes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910235983A CN101698948A (en) | 2009-11-03 | 2009-11-03 | Method for manufacturing carbon anode with shot coke-containing petroleum coke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910235983A CN101698948A (en) | 2009-11-03 | 2009-11-03 | Method for manufacturing carbon anode with shot coke-containing petroleum coke |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101698948A true CN101698948A (en) | 2010-04-28 |
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| CN200910235983A Pending CN101698948A (en) | 2009-11-03 | 2009-11-03 | Method for manufacturing carbon anode with shot coke-containing petroleum coke |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101982407A (en) * | 2010-09-03 | 2011-03-02 | 云南源鑫炭素有限公司 | Method for increasing true density of calcined coke for prebaked anode for aluminum electrolysis |
| CN107034486A (en) * | 2017-06-22 | 2017-08-11 | 索通发展股份有限公司 | It is a kind of it is used for aluminium electrolysis inflation multiple-hole prebaked anode and use its electrolytic method |
| CN115321982A (en) * | 2022-09-16 | 2022-11-11 | 江苏中商碳素研究院有限公司 | Prebaked anode produced by taking shot coke as main material and production process thereof |
-
2009
- 2009-11-03 CN CN200910235983A patent/CN101698948A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101982407A (en) * | 2010-09-03 | 2011-03-02 | 云南源鑫炭素有限公司 | Method for increasing true density of calcined coke for prebaked anode for aluminum electrolysis |
| CN107034486A (en) * | 2017-06-22 | 2017-08-11 | 索通发展股份有限公司 | It is a kind of it is used for aluminium electrolysis inflation multiple-hole prebaked anode and use its electrolytic method |
| CN107034486B (en) * | 2017-06-22 | 2019-05-28 | 索通发展股份有限公司 | A kind of inflation multiple-hole prebaked anode used for aluminium electrolysis and the electrolytic method using it |
| CN115321982A (en) * | 2022-09-16 | 2022-11-11 | 江苏中商碳素研究院有限公司 | Prebaked anode produced by taking shot coke as main material and production process thereof |
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Open date: 20100428 |