CN101942231A - Method for preparing acetylene black applied in battery production - Google Patents
Method for preparing acetylene black applied in battery production Download PDFInfo
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- CN101942231A CN101942231A CN2010102687513A CN201010268751A CN101942231A CN 101942231 A CN101942231 A CN 101942231A CN 2010102687513 A CN2010102687513 A CN 2010102687513A CN 201010268751 A CN201010268751 A CN 201010268751A CN 101942231 A CN101942231 A CN 101942231A
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Abstract
The invention discloses a method for preparing acetylene black applied in battery production, which comprises the following preparation steps of: (1) adding naphtha (crude gasoline) into a reaction furnace, heating the reaction furnace to over 750 DEG C for decomposition to obtain acetylene and other hydrocarbon gases, separating the acetylene from the other hydrocarbon gases, and collecting the acetylene; (2) introducing the acetylene into a cracking furnace, isolating the acetylene from the air, raising the temperature in the cracking furnace to the acetylene decomposition initial temperature of 800 DEG C, gradually raising the temperature of the reaction furnace, and raising the reaction temperature of the cracking furnace to about 1,800 DEG C and keeping the temperature at 1,800 DEG C, wherein the temperature in the furnace can be controlled by a water cooling jacket of an outer barrel of the cracking furnace; and (3) controlling the reaction time of the acetylene to be between 0.1s and 0.27s at the temperature of 1,800 DEG C in the cracking furnace, and cracking the acetylene in the cracking furnace for multiple times to obtain the acetylene black. The method of the invention has the advantages of low energy consumption, a few impurities such as heavy metals, good conductive effect and excellent liquid-absorption and moisturizing effect.
Description
Technical field
The invention belongs to the method for preparing raw material of making battery product, relate to a kind of preparation method who is used for putting into the anodal acetylene black of battery production, relate in particular to a kind of method that makes acetylene black with petroleum naphtha (raw gasline) cracking.
Background technology
The acetylene black that battery production generally adopts calcium carbide to process with acetylene black adopts the acetylene black of calcium carbide pyrolysis method preparation to join in the anode prescription, mainly contains two effects in battery: the one, and electric action; The 2nd, the imbibition moisture-keeping function.Because calcium carbide is a solid materials, convenient transportation, it is very high to make concentration of acetylene.So the application of calcium carbide cracking acetylene black is commonplace, but, be processed into the complex process of acetylene black owing to the calcium carbide resource exhaustion, the energy consumption height, thus the production cost height, the price height, development is restricted.Occur utilizing the petroleum hydrocarbon cracking to produce the method method of ethene therefrom, large-scale in the world ethylene producing device all is to be based upon on the basis of petroleum hydrocarbon cracking technique at present.Petroleum hydrocarbon scission reaction process is very complicated, and the acetylene black that existing petroleum cracking makes can not be used in battery because of water-absorbent difference and heavy metal content height.
In sum, at the calcium carbide thermo-cracking production acetylene black of prior art and the existing defective of method of petroleum hydrocarbon cracking production acetylene black,, be problem demanding prompt solution in the battery production link for how solving this two kinds of existing defectives of method.
Summary of the invention
The present invention is in order to overcome the deficiencies in the prior art, a kind of acetylene black preparation method who is applied in the battery production is provided, this acetylene black preparation method's is simple, and the acetylene black purity height that makes is applied in and has favorable conductive effect and splendid imbibition moisture-keeping function in the battery.
The present invention will solve the technical scheme that its prior art problem adopted: a kind of acetylene black preparation method who is applied in the battery production, acetylene black are by the petroleum cracking gained, and the concrete preparation process of acetylene black is:
(1) in Reaktionsofen, adds petroleum naphtha (raw gasline), the temperature of Reaktionsofen is warming up to more than 750 ℃ to decompose makes acetylene and other hydrocarbon gas, separate acetylene and other hydrocarbon gas, acetylene is collected;
(2) acetylene is imported in the pyrolyzer, acetylene and air are isolated, and pyrolyzer inside is warming up to acetylene and decomposes 800 ℃ of starting temperatures, the temperature of the Reaktionsofen that raises gradually, make the temperature of reaction of pyrolyzer rise to and remain on about 1800 ℃, temperature can be controlled by pyrolyzer urceolus water-cooling jacket in the stove;
(3) the control reaction times of acetylene in 1800 ℃ pyrolyzer is 0.1s～0.27s, and the cracking that acetylene carries out in pyrolyzer repeatedly just makes acetylene black.
As the further design to the aforementioned techniques scheme: the decomposition reaction time of petroleum naphtha (raw gasline) in the Reaktionsofen more than 750 ℃ is 0.05s～0.1s in the aforesaid step (1).
As the further design to the aforementioned techniques scheme: the method for separating acetylene and other hydrocarbon gas in the aforesaid step (1) is the solvent absorbing separation method, solvent has water, acetone, methyl alcohol, liquefied ammonia, N, dinethylformamide, N-Methyl pyrrolidone, the gas that petroleum naphtha (raw gasline) cracking produces is after the washing cooling, with oil wash or tornado dust collector or the absorption of moving-bed coke, deviate from carbon black fine particle, enter concentration tower then, in depress with a large amount of acetylene of a small amount of above-mentioned solvent absorbing, ethene is absorbed simultaneously and is further separated.Then the carbonic acid gas of separating is absorbed by a large amount of circulating solvents with acetylene, carbonic acid gas further separates with acetylene, and the concentration of acetylene that obtains is higher than 99%.In addition, also add removal of impurity technology in anode, heavy metal makes the purity of acetylene black higher to the influence of battery quality in the minimizing acetylene black.
General 6～10% the acetylene black of in the anode powder, adding, because the production of acetylene black is petroleum naphtha (raw gasline) cracking of adopting refining of petroleum to come out, the acetylene black that manufacture gas resolves into during petroleum naphtha per ton (raw gasline) pyrolysis prepares cheap about 1200 yuan of acetylene black than calcium carbide cracking process, existingly in R20, R14, the various battery of R6, R03, all use as taking charge of by 50～100% collocation according to me, annual with about 1100 tons of acetylene blacks, press with the average total amount 75% of this acetylene black, promptly use 825 tons, so reduce expenses 990,000 yuan the whole year.
In sum, petroleum naphtha of the present invention (raw gasline) cracking acetylene black method is compared with the calcium carbide cracking process, and energy consumption is lower, is suitable for scale operation; Petroleum naphtha of the present invention (raw gasline) cracking acetylene black method yield height, equipment is simple, and technological operation is easy; And use acetylene black that this method produces because impurity such as heavy metal are few, so the loss that self-discharge causes is little, shelf characteric is also better.
Embodiment
A kind of acetylene black preparation method who is applied in the battery production of the embodiment of the invention, acetylene black are by the petroleum cracking gained, and the concrete preparation process of acetylene black is:
(1) in Reaktionsofen, adds petroleum naphtha (raw gasline), the temperature of Reaktionsofen is warming up to more than 750 ℃ to decompose makes acetylene and other hydrocarbon gas, the decomposition reaction time of petroleum naphtha (raw gasline) in Reaktionsofen is 0.05s～0.1s, separate acetylene and other hydrocarbon gas then, acetylene is collected;
(2) acetylene is imported in the pyrolyzer, acetylene and air are isolated, and pyrolyzer inside is warming up to acetylene and decomposes 800 ℃ of starting temperatures, the temperature of the Reaktionsofen that raises gradually, make the temperature of reaction of pyrolyzer rise to and remain on about 1800 ℃, temperature can be controlled by pyrolyzer urceolus water-cooling jacket in the stove;
(3) the control reaction times of acetylene in 1800 ℃ pyrolyzer is 0.1s～0.27s, and the cracking that acetylene carries out in pyrolyzer repeatedly just makes acetylene black.
The method of separating acetylene and other hydrocarbon gas in the aforesaid step (1) is the solvent absorbing separation method, solvent has water, acetone, methyl alcohol, liquefied ammonia, N, dinethylformamide, N-Methyl pyrrolidone, the gas that petroleum naphtha (raw gasline) cracking produces is after the washing cooling, deviate from carbon black fine particle with the oil wash method, enter concentration tower then, in depress with a large amount of acetylene of a small amount of above-mentioned solvent absorbing, ethene is absorbed simultaneously and is further separated.Then the carbonic acid gas of separating is absorbed by a large amount of circulating solvents with acetylene, carbonic acid gas further separates with acetylene, and the concentration of acetylene that obtains is higher than 99%.
The above only is preferred embodiment of the present invention, is not technical scheme of the present invention is done any pro forma restriction.Every foundation technical spirit of the present invention all still belongs in the scope of technical scheme of the present invention any simple modification, equivalent variations and modification that above embodiment did.
Claims (3)
1. acetylene black preparation method who is applied in the battery production, acetylene black be is characterized in that by the petroleum cracking gained: the concrete preparation process of acetylene black is:
(1) in Reaktionsofen, adds petroleum naphtha (raw gasline), the temperature of Reaktionsofen is warming up to more than 750 ℃ to decompose makes acetylene and other hydrocarbon gas, separate acetylene and other hydrocarbon gas, acetylene is collected;
(2) acetylene is imported in the pyrolyzer, acetylene and air are isolated, and pyrolyzer inside is warming up to acetylene and decomposes 800 ℃ of starting temperatures, the temperature of the Reaktionsofen that raises gradually, make the temperature of reaction of pyrolyzer rise to and remain on about 1800 ℃, temperature can be controlled by pyrolyzer urceolus water-cooling jacket in the stove;
(3) the control reaction times of acetylene in 1800 ℃ pyrolyzer is 0.1s～0.27s, and the cracking that acetylene carries out in pyrolyzer repeatedly just makes acetylene black.
2. acetylene black preparation method according to claim 1 is characterized in that: the decomposition reaction time of petroleum naphtha (raw gasline) in the Reaktionsofen more than 750 ℃ is 0.05s～0.1s in the described step (1).
3. acetylene black preparation method according to claim 2, it is characterized in that: the method for separating acetylene and other hydrocarbon gas in the described step (1) is the solvent absorbing separation method, solvent has water, acetone, methyl alcohol, liquefied ammonia, N, dinethylformamide, N-Methyl pyrrolidone, the gas that petroleum naphtha (raw gasline) cracking produces is after the washing cooling, with oil wash or tornado dust collector or the absorption of moving-bed coke, deviate from carbon black fine particle, enter concentration tower then, in depress with a large amount of acetylene of a small amount of above-mentioned solvent absorbing, ethene is absorbed simultaneously and is further separated.Then the carbonic acid gas of separating is absorbed by a large amount of circulating solvents with acetylene, carbonic acid gas further separates with acetylene, and the concentration of acetylene that obtains is higher than 99%.
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| CN2010102687513A CN101942231A (en) | 2010-08-30 | 2010-08-30 | Method for preparing acetylene black applied in battery production |
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| CN2010102687513A CN101942231A (en) | 2010-08-30 | 2010-08-30 | Method for preparing acetylene black applied in battery production |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104792841A (en) * | 2015-04-22 | 2015-07-22 | 湖北民族学院 | Acetylene black modified electrode and preparation method thereof |
| CN111269590A (en) * | 2020-03-04 | 2020-06-12 | 焦作市和兴化学工业有限公司 | Preparation method of easily-dispersible acetylene black |
| CN114381145A (en) * | 2021-12-15 | 2022-04-22 | 焦作市和兴化学工业有限公司 | Preparation method of low-viscosity acetylene carbon black |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4608244A (en) * | 1984-04-05 | 1986-08-26 | Denki Kagaku Kogyo Kabushiki Kaisha | Acetylene black |
| CN1086738A (en) * | 1992-07-15 | 1994-05-18 | 林德股份公司 | From the process cycles gas of chemistry or petrochemistry device, remove the method and the separator of degranulation |
| CN101486625A (en) * | 2009-02-19 | 2009-07-22 | 山东科技大学 | Fractionation process for cracking gas from oxidation pyrolysis of gaseous hydrocarbon |
-
2010
- 2010-08-30 CN CN2010102687513A patent/CN101942231A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4608244A (en) * | 1984-04-05 | 1986-08-26 | Denki Kagaku Kogyo Kabushiki Kaisha | Acetylene black |
| CN1086738A (en) * | 1992-07-15 | 1994-05-18 | 林德股份公司 | From the process cycles gas of chemistry or petrochemistry device, remove the method and the separator of degranulation |
| CN101486625A (en) * | 2009-02-19 | 2009-07-22 | 山东科技大学 | Fractionation process for cracking gas from oxidation pyrolysis of gaseous hydrocarbon |
Non-Patent Citations (2)
| Title |
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| B.M.什列尼科夫: "《由石油和气态烃制取乙炔的装置》", 30 June 1974 * |
| 百科ROBOT: "《http://baike.baidu.com/view/2383239.htm》", 30 December 2009 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104792841A (en) * | 2015-04-22 | 2015-07-22 | 湖北民族学院 | Acetylene black modified electrode and preparation method thereof |
| CN111269590A (en) * | 2020-03-04 | 2020-06-12 | 焦作市和兴化学工业有限公司 | Preparation method of easily-dispersible acetylene black |
| CN111269590B (en) * | 2020-03-04 | 2021-10-22 | 焦作市和兴化学工业有限公司 | Preparation method of easily-dispersible acetylene black |
| CN114381145A (en) * | 2021-12-15 | 2022-04-22 | 焦作市和兴化学工业有限公司 | Preparation method of low-viscosity acetylene carbon black |
| CN114381145B (en) * | 2021-12-15 | 2022-12-20 | 焦作市和兴化学工业有限公司 | Preparation method of low-viscosity acetylene carbon black |
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Application publication date: 20110112 |