CN202315360U - Distilling device for purifying thiophene - Google Patents
Distilling device for purifying thiophene Download PDFInfo
- Publication number
- CN202315360U CN202315360U CN2011204646166U CN201120464616U CN202315360U CN 202315360 U CN202315360 U CN 202315360U CN 2011204646166 U CN2011204646166 U CN 2011204646166U CN 201120464616 U CN201120464616 U CN 201120464616U CN 202315360 U CN202315360 U CN 202315360U
- Authority
- CN
- China
- Prior art keywords
- thiophene
- outlet
- azeotropic mixture
- communicated
- tower
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model discloses a distilling device for purifying thiophene, comprising a first distillation tower and a second distillation tower which are mutually connected in series. An azeotrope inlet is arranged on the upper part of the first distillation tower, a high-boiling residue outlet is arranged on the bottom part of the first distillation tower, and a first azeotrope outlet is arranged on the top part of the first distillation tower; and a first azeotrope inlet is arranged on the upper part of the second distillation tower, the first azeotrope outlet is communicated with the first azeotrope inlet, a finished product thiophene outlet is arranged on the bottom part of the second distillation tower and is communicated with a finished product tank, and a second azeotrope outlet is arranged on the top part of the second distillation tower and is communicated with a raw material tank. According to the distilling device for purifying the thiophene, the purification of the thiophene can be finished in the first distillation tower and the second distillation tower which are mutually connected in series, and azeotrope comprising the thiophene and entrainer is continuously distilled and purified, so that the thiophene with high purity can be obtained.
Description
Technical field
The utility model relates to the distillation equipment for purifying, relates in particular to a kind of distilling apparatus of the thiophene that is used to purify.
Background technology
Thiophene be a kind of colourless, foul smelling, can tear-gas liquid.Thiophene is natural to be present in the oil, and content is up to several percentage points, and the sex change that is mainly used in the ethyl alcohols in the industry also can be used as solvent.Thiophene can replace benzene as the raw material of producing dyestuff and plastics in many occasions, but because thiophene character is comparatively active, general not as good by the produced product characteristics of benzene.The new purposes of thiophene-based heterocyclic compound constantly is developed, and the AT&T Labs finds can become the plastics with superconducting property after the thiophene polymerization, and cost is low, is expected to be widely used in fields such as quantum computer and superelectron equipment.The molecular configuration that changes thiophen polymer improves superconducting temperature, can be made into various superconduction plastics, is applied to high-tech areas such as Aeronautics and Astronautics, military project.
Thiophene is present in the crude benzol cut of coking generation, and most suitability for industrialized production is to remove thiophene as the impurity in a kind of tar, and is approaching because of the boiling point of thiophene and benzene, is difficult to general fractionating process the two separated.Present rectifying method for distilling in the world mainly is hydrofinishing method and sulfuric acid treatment method; The hydrofinishing method can obtain high-quality benzene, but technology is complicated, and operating condition is harsh; Process conditions are big to the requirement of equipment; Cause specification of equipment height, investment greatly, processing cost is high, is difficult to apply on a small scale; Sulfuric acid process is seriously polluted, yield is low, post processing is difficult, though technology is comparatively ripe, it is not enough to purify the degree of depth, and this method is under an embargo in many developed countries; In addition also have solvent extraction and freeze crystallization, but all be difficult to obtain highly purified product.Be in the chemical synthesis of solvent a lot, having a strong impact on product quality because of there being micro-thiophene to exist, even scrap with benzene.
Therefore the recovery refining and thiophene of coking benzene is a technical barrier always; In hydrofinishing method and sulfuric acid treatment method, the thiophene destruction that in subtractive process, all is decomposed is discharged in the environment at last; This has not only wasted Limited resources, also environment has been caused serious pollution.
The utility model content
The utility model technical problem to be solved is: to the deficiency that prior art exists, and the distilling apparatus that provides simple and high being used to of production product purity of a kind of production operation to purify thiophene.
For solving the problems of the technologies described above, the technical scheme of the utility model is:
A kind of distilling apparatus of the thiophene that is used to purify comprises first and second destilling towers of mutual series connection, and the said first destilling tower top is respectively equipped with the azeotropic mixture import and first refluxing opening, and the bottom is provided with the high-boiling components outlet, and the top is provided with the outlet of first azeotropic mixture; Said after-fractionating tower top is respectively equipped with the first azeotropic mixture import and second refluxing opening; Said first azeotropic mixture outlet is communicated with the first azeotropic mixture import; Said after-fractionating tower bottom is provided with the outlet of finished product thiophene; Said finished product thiophene outlet is communicated with the finished product jar, and the top is provided with the outlet of second azeotropic mixture.
As a kind of improvement, said second azeotropic mixture outlet is communicated with head tank.
As a kind of improvement, the top of said first and second destilling towers is communicated with first and second condensers respectively; Said first azeotropic mixture outlet of said first destilling tower is communicated with the said first azeotropic mixture import through said first condenser, and second azeotropic mixture outlet of said after-fractionating tower is communicated with said head tank through said second condenser.
As further improvement, the outlet of said first and second condensers is respectively equipped with the refluxing opening that return line is communicated with said first and second destilling towers.
As further improvement, be in series with first magnetic centrifugal pump between said first condenser and the said first azeotropic mixture import, be in series with second magnetic centrifugal pump between said second condenser and the head tank.
As a kind of improvement, the tower theoretical cam curve is 120 in said first destilling tower and the said after-fractionating tower.
As further improvement, be provided with wire packing in said first destilling tower and the after-fractionating tower.
Owing to adopted technique scheme, the beneficial effect of the utility model is:
The utility model purification thiophene is accomplished in first and second destilling towers of series connection each other; Technology is continuous; First destilling tower is provided with azeotropic mixture import, first refluxing opening, high-boiling components outlet and the outlet of first azeotropic mixture; Thick thiophene that from coking crude benzene, extracts and entrainer are formed azeotropic mixture and in first destilling tower, are distilled, and obtain high-boiling components at the bottom of the tower, and cat head obtains comprising first azeotropic mixture of thiophene and entrainer; After-fractionating tower is provided with the first azeotropic mixture import, second refluxing opening, the outlet of finished product thiophene and the outlet of second azeotropic mixture; First azeotropic mixture gets into and continues distillation in the after-fractionating tower; Cat head obtains comprising second azeotropic mixture of thiophene and entrainer; Obtain the finished product thiophene at the bottom of the tower, be provided with the finished product jar, can store the finished product thiophene.First destilling tower and the after-fractionating tower of the utility model are connected each other; Each material is distributing equilibrium and control convenience in tower; Technological process is simple; Guaranteed the thiophene quality of stability, be iron and steel enterprise and coking oil enterprise to the better device that byproduct carries out deep processing and utilization, be worthy of popularization.
Second azeotropic mixture outlet of the utility model is communicated with head tank, and second azeotropic mixture gets into head tank, can recycle.
The top of first and second destilling towers is communicated with first and second condensers respectively, and first azeotropic mixture can get into the after-fractionating tower distillation after the condensation in first condenser, and second azeotropic mixture can get into head tank after the condensation in second condenser.Be in series with magnetic centrifugal pump in the pipeline, can be the mobile power that provides of material.
Be provided with theoretical tray and wire packing in the first and second distillation Tatas; Wire packing has the advantage that operating flexibility is big, enlarge-effect is not obvious, number of theoretical plate is high, flux is big, pressure reduces, low-load performance is good; Can satisfy the requirement of high-accuracy distillation, for the rectifying separation of high purity product provides advantageous conditions.
Description of drawings
Accompanying drawing is the structural representation of the utility model embodiment.
Among the figure: 1. first destilling tower, 11. azeotropic mixture imports, the outlet of 12. first azeotropic mixtures, the outlet of 13. high-boiling components, 14. first return lines; 15. first condenser, 16. first magnetic centrifugal pumps, 17. first refluxing openings, 2. after-fractionating tower, 21. first azeotropic mixture imports; 22. the outlet of second azeotropic mixture, the outlet of 23. finished product thiophene, 24. second return lines, 25. second condensers, 26. second magnetic centrifugal pumps; 27. second refluxing opening, 3. entrainer pipeline, 4. head tank, 5. finished product jar, 6. wire packing.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment, further set forth the utility model.Should be understood that these embodiment only to be used to the utility model is described and be not used in the restriction the utility model scope.Should be understood that in addition those skilled in the art can do various changes or modification to the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Shown in accompanying drawing; A kind of distilling apparatus of the thiophene that is used to purify; First destilling tower 1 and after-fractionating tower 2 that comprises mutual series connection; Said first destilling tower 1 top is provided with azeotropic mixture import 11, and the bottom is provided with high-boiling components outlet 13, and the top is provided with first azeotropic mixture outlet 12; Said after-fractionating tower 2 tops are provided with the first azeotropic mixture import 21; Said first azeotropic mixture outlet 12 is communicated with the said first azeotropic mixture import 21 through first condenser 15, is in series with first magnetic centrifugal pump 16 between said first condenser 15 and the said first azeotropic mixture import 21, and the outlet of said first condenser 15 is provided with first refluxing opening 17 that first return line 14 is communicated with said first destilling tower; The bottom is provided with finished product thiophene outlet 23; Said finished product thiophene outlet 23 is communicated with finished product jar 5; Said after-fractionating tower 2 tops are provided with second azeotropic mixture outlet 22; Said second azeotropic mixture outlet 22 is communicated with head tank 4 through second condenser 25, and the outlet of said second condenser 25 is provided with second refluxing opening 27 that second return line 24 is communicated with said after-fractionating tower; Be equipped with 120 theoretical trays in said first destilling tower 1 and the said after-fractionating tower 2, and be equipped with wire packing 6.
The operation principle of the utility model is: thick thiophene that from coking crude benzene, extracts and the entrainer in the entrainer pipeline 3 get into first destilling tower 1 from azeotropic mixture import 11 jointly; Distill; Bottom high-boiling components outlet 13 obtains high-boiling components, and top first azeotropic mixture outlet 12 obtains comprising first azeotropic mixture of thiophene and entrainer, and first azeotropic mixture gets into after-fractionating tower 2 from the first azeotropic mixture import 21 through first condenser 15 under 16 effects of first magnetic centrifugal pump; Distill; Bottom finished product thiophene outlet 23 obtains the finished product thiophene, and the finished product thiophene gets into finished product jar 5 and stores, and top second azeotropic mixture outlet 22 obtains comprising second azeotropic mixture of thiophene and entrainer; Second azeotropic mixture gets into head tank through second condenser 25 under 26 effects of second magnetic centrifugal pump, can recycle.In the still-process,, control temperature and distillation quality in each destilling tower through regulating the return valve adjusting reflux ratio that first return line 14 and second return line 24 are provided with.
Claims (7)
1. the distilling apparatus of the thiophene that is used to purify; It is characterized in that: first and second destilling towers that comprise mutual series connection; The said first destilling tower top is respectively equipped with the azeotropic mixture import and first refluxing opening, and the bottom is provided with the high-boiling components outlet, and the top is provided with the outlet of first azeotropic mixture; Said after-fractionating tower top is respectively equipped with the first azeotropic mixture import and second refluxing opening; Said first azeotropic mixture outlet is communicated with the first azeotropic mixture import; Said after-fractionating tower bottom is provided with the outlet of finished product thiophene; Said finished product thiophene outlet is communicated with the finished product jar, and the top is provided with the outlet of second azeotropic mixture.
2. the distilling apparatus of a kind of thiophene that is used to purify as claimed in claim 1 is characterized in that: said second azeotropic mixture outlet is communicated with head tank.
3. the distilling apparatus of a kind of thiophene that is used to purify as claimed in claim 2, it is characterized in that: the top of said first and second destilling towers is communicated with first and second condensers respectively; Said first azeotropic mixture outlet of said first destilling tower is communicated with the said first azeotropic mixture import through said first condenser, and second azeotropic mixture outlet of said after-fractionating tower is communicated with said head tank through said second condenser.
4. the distilling apparatus of a kind of thiophene that is used to purify as claimed in claim 3, it is characterized in that: the outlet of said first and second condensers is respectively equipped with the refluxing opening that return line is communicated with said first and second destilling towers.
5. the distilling apparatus of a kind of thiophene that is used to purify as claimed in claim 3; It is characterized in that: be in series with first magnetic centrifugal pump between said first condenser and the said first azeotropic mixture import, be in series with second magnetic centrifugal pump between said second condenser and the head tank.
6. the distilling apparatus of a kind of thiophene that is used to purify as claimed in claim 1 is characterized in that: the tower theoretical cam curve is 120 in said first destilling tower and the said after-fractionating tower.
7. the distilling apparatus of a kind of thiophene that is used to purify as claimed in claim 6 is characterized in that: be provided with wire packing in said first destilling tower and the after-fractionating tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204646166U CN202315360U (en) | 2011-11-21 | 2011-11-21 | Distilling device for purifying thiophene |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204646166U CN202315360U (en) | 2011-11-21 | 2011-11-21 | Distilling device for purifying thiophene |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202315360U true CN202315360U (en) | 2012-07-11 |
Family
ID=46427363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204646166U Expired - Lifetime CN202315360U (en) | 2011-11-21 | 2011-11-21 | Distilling device for purifying thiophene |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202315360U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103349845A (en) * | 2013-07-27 | 2013-10-16 | 上海泰坦科技股份有限公司 | Molecular rectification and purification technology of heterocyclic compound |
-
2011
- 2011-11-21 CN CN2011204646166U patent/CN202315360U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103349845A (en) * | 2013-07-27 | 2013-10-16 | 上海泰坦科技股份有限公司 | Molecular rectification and purification technology of heterocyclic compound |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103936646B (en) | The recovery method of a kind of N-Methyl pyrrolidone | |
| CN103772148A (en) | Novel method for separating mixture of ethylene glycol and 1, 2-butanediol by adopting azeotropic distillation and extraction coupling technologies | |
| CN203923057U (en) | Improved Butanol Recycling device | |
| CN1765857A (en) | Extraction and rectification separation method for normal hexane and methyl cyclopentane | |
| CN103664446A (en) | Technology for separating n-hexane-methylcyclopentane through extractive distillation | |
| CN110613946B (en) | Backpack reaction rectification equipment for synthesizing diethyl oxalate and process thereof | |
| CN102219634A (en) | Device and method for separating diisopropylbenzene isomeride by virtue of reduced pressure batch distillation | |
| CN107793293B (en) | Method for separating methanol-isopropanol-water by intermittent extraction and rectification and control structure | |
| CN101250079A (en) | Heat-exchange network device for refining crude benzene and method of operation | |
| CN113666893B (en) | Refining method of furfural | |
| CN1827581A (en) | Process and equipment for preparing ethyl acetate and butyl acetate | |
| CN202400996U (en) | Production device for extracting high-purity thiophene by coked crude benzene | |
| CN202315360U (en) | Distilling device for purifying thiophene | |
| CN102336622A (en) | Reclaiming device and separation method for heavy component residue of coked crude benzene hydrogenation process | |
| CN106349107B (en) | A kind of method and device of heterogeneous azeotropic rectification separating acetonitrile-triethylamine mixture | |
| CN103706136B (en) | For the double rectification column separation method of purification of methyl tertiary butyl ether(MTBE) in statins building-up process waste liquid-tetrahydrofuran recycling | |
| CN103772185B (en) | Device and method for removing moisture and heteroacids in acetic acid | |
| CN105777472B (en) | It is a kind of to separate pentane, hexane, heptane and the method for octane mixture system | |
| CN102382099B (en) | Method for preparing thiophene through variable pressure azeotropic distillation | |
| CN103319350B (en) | Purification method of 1,2-propylene amide | |
| CN105646146A (en) | Propyl alcohol-triethylamine azeotropic mixture extraction and rectification method | |
| CN202322679U (en) | Thiophene purification device | |
| CN209940868U (en) | Rectifying device in process of producing high-purity 1, 4-butanediol | |
| CN215137005U (en) | System for utilize dividing wall tower to prepare high-purity DMAC | |
| CN115340443A (en) | Method for separating isopropanol-water-ethanol mixture by thermal coupling extractive distillation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANDONG YUANLI SCIENCE AND TECHNOLOGY CO., LTD. Free format text: FORMER NAME: WEIFANG YUANLI CHEMICAL CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 262404, Shandong province Weifang County Changle Zhu Liu Street Industrial Park (309 State Road 355 kilometers) Patentee after: Shandong Yuanli Technology Co., Ltd. Address before: 262404 No. 37 Industrial Zone, Zhu Liu street, Changle County, Shandong, Weifang Patentee before: Weifang City Yuanli Chemical Industry Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120711 |