CN1080276A - From carbolineum, extract the method for crude anthracene - Google Patents
From carbolineum, extract the method for crude anthracene Download PDFInfo
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- CN1080276A CN1080276A CN 92104925 CN92104925A CN1080276A CN 1080276 A CN1080276 A CN 1080276A CN 92104925 CN92104925 CN 92104925 CN 92104925 A CN92104925 A CN 92104925A CN 1080276 A CN1080276 A CN 1080276A
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- carbolineum
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Abstract
A kind of method of from the carbolineum fraction, extracting crude anthracene, it is characterized in that: be that 4-7% a carbolineum is 30-35 ℃ of following crystallizations with anthracene content, leach crude anthracene, add a carbolineum that contains anthracene 4-7% again, fusing makes the anthracene content of a carbolineum reach 7-10% through heating up, one carbolineum of anthracene content 7-10% carries out one section crystallization under 68-72 ℃, leach finished product, filtrate is carried out two sections crystallizations, and Tc is reduced to 30-35 ℃, leach crude anthracene, return crystallization again in the carbolineum.
Description
The present invention relates to a kind of method of from coal tar one carbolineum fraction, extracting crude anthracene with crystallization process.
Coal tar one carbolineum fraction anthracene content is generally 4-7%, at present, it is conventionally believed that Tc can not be brought up to about 70 ℃ in actual production, otherwise the crude anthracene that crystallization goes out seldom, and productive rate is very low.The current techique of domestic production crude anthracene is to make a carbolineum fraction at 35-40 ℃ of following crystallisation by cooling, and the crude anthracene anthracene content of Sheng Chaning generally has only 32-36% like this.In recent years, in order to improve the anthracene content of crude anthracene, some coke-oven plant has adopted two sections comparatively advanced crystallization processes to produce crude anthracene.On rolling up the 168th page in 1989 the 5th, " The Chinese Society for Metals's coking chemistry selected papers " magazine briefly introduced this two sections crystallization processes.One section Tc of this technology has been brought up to 55-60 ℃, and the crude anthracene that crystallizes out washs with 60 ℃ hot washing oil.Content can reach 40% after centrifugation.In second section crystallisation process, the carbolineum Tc after one section separation is reduced to 35-40 ℃, and the crude anthracene of separating returns crystallization again in a section, to improve yield.
The weak point of aforesaid method is that Tc is lower, very difficult crystallization goes out the crude anthracene of 40% above content, even adopt two sections comparatively advanced crystallization processes, expect the crude anthracene that content is higher, also need consume price and wash with the close washing oil of crude anthracene, production cost is higher.
The objective of the invention is under the situation of not using washing oil,, correspondingly improve the anthracene content of a carbolineum, produce the crude anthracene of 40% above content by improving the Tc of a carbolineum.
Key of the present invention is to improve the Tc of a carbolineum, the Tc of one carbolineum is brought up to 68-72 ℃ by common 55-60 ℃, correspondingly the anthracene content of a carbolineum is brought up to 7-10% by 4-7%, could guarantee that like this crystallization goes out anthracene when Tc is brought up to 68-72 ℃, remove impurity such as phenanthrene simultaneously effectively.
The present invention describes in detail below in conjunction with accompanying drawing:
Fig. 1 is a process flow sheet of the present invention
Be about 90 ℃ with temperature at first, anthracene content is that the carbolineum of 4-7% is delivered in the crystallization tank 2 through the 1a pipe, is cooled to gradually 30-35 ℃, filters from flowing in the filter centrifugal 3 through 2a pipe then, and the brilliant carbolineum that takes off that leaches flow to through the 3b pipe and takes off brilliant carbolineum storage tank 9. The crude anthracene of anthracene content below 25% of filtering/going out delivered in the melting channel 4 by 3a, and the carbolineum through a carbolineum pipe 1b adds anthracene content 4-7% makes the anthracene content of a carbolineum bring up to 7-10% through the intensification fusing. Send in one section crystallization tank 5 through the 4a pipe, be cooled to gradually 68-72 ℃, carry out filter operation through 5a in the filter centrifugal 6 from flowing into then, the crude anthracene of anthracene content more than 40% that leaches delivered to storehouse 10 packings through 6b. The filtrate that leaches continuation is delivered in two sections crystallization tanks 7 through the 6a pipe, temperature is down to 30-35 ℃, then through pipe 7a from flowing in the filter centrifugal 8, the brilliant carbolineum that takes off that leaches is delivered to through the 8a pipe and is taken off brilliant carbolineum storage tank, and the crude anthracene of anthracene content 20-25% is sent back in the melting channel 4 by 8b, the next circulation of beginning.
The present invention produces the crude anthracene more than 40% by improving anthracene content and the crystallization temperature of a carbolineum, and technology is simple, does not need to wash with washing oil again, greatly reduces production cost.
One embodiment of the present of invention are: 13 tons of carbolineums that contain anthracene 5%, temperature is reduced to 35 ℃ gradually by 95 ℃ in crystallizer tank 2, centrifuging gets 1.8 tons of crude anthracenes that contain anthracene 28% then, add 15 ton of 5% 1 carbolineum and be heated to 92 ℃ of fusings, carbolineum anthracene content after the fusing is 7.5%, be cooled to 72 ℃, filter to such an extent that contain 2.1 tons of the crude anthracenes of anthracene 41.9% through centrifugal filter.
Claims (1)
1, a kind of method of from the carbolineum fraction, extracting crude anthracene, it is characterized in that: a carbolineum that with anthracene content is 4--7% leaches crude anthracene 30--35 ℃ of following crystallization, adds a carbolineum that contains anthracene 4--7% again, and fusing makes the anthracene content of a carbolineum reach 7--10% through heating up; The carbolineum of anthracene content 7--10% carries out one section crystallization under 68--72 ℃, leach finished product, and filtrate is carried out two sections crystallizations, and Tc is reduced to 30--35 ℃, leaches crude anthracene, returns crystallization again in the carbolineum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92104925A CN1034729C (en) | 1992-06-20 | 1992-06-20 | Method for extracting crude anthracene from anthracene oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92104925A CN1034729C (en) | 1992-06-20 | 1992-06-20 | Method for extracting crude anthracene from anthracene oil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1080276A true CN1080276A (en) | 1994-01-05 |
| CN1034729C CN1034729C (en) | 1997-04-30 |
Family
ID=4941073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN92104925A Expired - Fee Related CN1034729C (en) | 1992-06-20 | 1992-06-20 | Method for extracting crude anthracene from anthracene oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1034729C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1051070C (en) * | 1996-02-09 | 2000-04-05 | 鞍山钢铁公司 | Two-stage crystallization method for extracting coarse anthracene from anthracene oil |
| CN1052968C (en) * | 1997-06-06 | 2000-05-31 | 中国石油化工总公司 | Akylation of benzene and ethylbenzene manufactured from ethylene |
| CN1074756C (en) * | 1996-04-04 | 2001-11-14 | Vft股份公司 | Distillation process for improving yield of pure products from crude anthracene |
| CN103980085A (en) * | 2014-05-20 | 2014-08-13 | 重庆路洋化工有限公司 | Crude anthracene extracting system and method |
| CN105669351A (en) * | 2014-11-20 | 2016-06-15 | 秦皇岛华瑞煤焦化工有限公司 | Crude anthracene production method and device |
| CN115161071A (en) * | 2022-06-09 | 2022-10-11 | 上海交通大学 | Method for purifying and removing crystal anthracene oil by ceramic membrane filtration and catalytic coupling |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2715647A (en) * | 1952-06-30 | 1955-08-16 | Phillips Petroleum Co | Separation and purification of anthracene |
-
1992
- 1992-06-20 CN CN92104925A patent/CN1034729C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1051070C (en) * | 1996-02-09 | 2000-04-05 | 鞍山钢铁公司 | Two-stage crystallization method for extracting coarse anthracene from anthracene oil |
| CN1074756C (en) * | 1996-04-04 | 2001-11-14 | Vft股份公司 | Distillation process for improving yield of pure products from crude anthracene |
| CN1052968C (en) * | 1997-06-06 | 2000-05-31 | 中国石油化工总公司 | Akylation of benzene and ethylbenzene manufactured from ethylene |
| CN103980085A (en) * | 2014-05-20 | 2014-08-13 | 重庆路洋化工有限公司 | Crude anthracene extracting system and method |
| CN103980085B (en) * | 2014-05-20 | 2015-12-02 | 重庆路洋化工有限公司 | A kind of crude anthracene extraction system and extracting method |
| CN105669351A (en) * | 2014-11-20 | 2016-06-15 | 秦皇岛华瑞煤焦化工有限公司 | Crude anthracene production method and device |
| CN115161071A (en) * | 2022-06-09 | 2022-10-11 | 上海交通大学 | Method for purifying and removing crystal anthracene oil by ceramic membrane filtration and catalytic coupling |
| CN115161071B (en) * | 2022-06-09 | 2024-04-16 | 上海交通大学 | Method for purifying decrystallized anthracene oil by ceramic membrane filtration and catalytic coupling |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1034729C (en) | 1997-04-30 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |