CN102311541A - Second esterification reactor in continuous production device of poly (trimethylene terephthalate) - Google Patents
Second esterification reactor in continuous production device of poly (trimethylene terephthalate) Download PDFInfo
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- CN102311541A CN102311541A CN201110265689A CN201110265689A CN102311541A CN 102311541 A CN102311541 A CN 102311541A CN 201110265689 A CN201110265689 A CN 201110265689A CN 201110265689 A CN201110265689 A CN 201110265689A CN 102311541 A CN102311541 A CN 102311541A
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Abstract
The invention provides a second esterification reactor in a continuous production device of poly (trimethylene terephthalate) (PTT), comprising a reactor autoclave body, wherein, the reactor autoclave body is horizontal and provided with one or more separator plates inside, the separator plates separate the inner space of the reactor autoclave body into at least two cavities, each cavity has same or different length with other cavity, the bottom of the separator plate is provided with a through hole or a gap for the circulation of the materials, the upper edge of the separator plate is apart from the inner wall of the upper portion of the reactor autoclave body with a spacing, partial or all cavities are correspondingly provided with additive conduits and stirrers, and the reactor autoclave body is provided with a jacket and/or a heating coil. According to the invention, the retention time of the esters in different cavity is controllable, so that the esterification degree is controlled, and by adding various additives in the esters with different esterification degree in different cavity, the product quality is improved.
Description
Technical field
The present invention relates to a kind of device of producing PTT, relate in particular to a kind of poly terephthalic acid 1, second esterifier in the ammediol ester continuous production device.
Background technology
PTT (PTT) is the successful new polyester material of 20th century the mid-90 commercial exploitation.In the successive polymerization technology of existing production PTT; Esterifier generally adopts vertical reactor; Owing to need add multiple additives in different Esterification Stage in its production process, if adopt vertical reactor then the residence time of wayward additive, technical process is complicated; And increased facility investment and production energy consumption, be unfavorable for production management and reduce production costs.
Summary of the invention
In order to overcome the above-mentioned defective of prior art; The invention provides a kind of poly terephthalic acid 1; Second esterifier in the ammediol ester continuous production device; Can realize adding multiple different additives in different Esterification Stage in the continuous production, and quality product is high, performance is good, facility investment is few.
Technical scheme provided by the invention:
A kind of poly terephthalic acid 1; Second esterifier in the ammediol ester continuous production device; Comprise the reactor drum kettle; Said reactor drum kettle is horizontal kettle, is provided with one or more dividing plate in it, and the internal space of said reactor drum kettle is separated at least two chambers; Said dividing plate bottom is provided with through hole or the breach that supplies the reaction mass circulation, leaves spacing or said dividing plate top between the inwall at least a portion upper limb of said dividing plate and said reactor drum kettle top and leaves through hole or go up breach.
Said through hole is preferably semi-circular through hole or breach, also can be crescent or other suitable shape, and the bottom interior wall of particularly semicircular diameter place and reactor drum kettle is fitted.
The length of each said chamber can be arranged to equate or do not wait.
Be typically provided with material inlet and material outlet on the said reactor drum kettle; Said material outlet can comprise liquid phase material outlet and gaseous phase materials outlet; Said material inlet is positioned at the bottom/bottom of said reactor drum kettle one side; Outlet lays respectively at the bottom/bottom of said reactor drum kettle opposite side and the top of reactor drum kettle to the outlet of said liquid phase material with gaseous phase materials, and two chambers that said material inlet and said liquid phase material export preferably respectively with material passes in and out said second esterifier communicate.
Said reactor drum kettle top can also be provided with the safety relief mouth; Said reactor drum autoclave body bottom can also be provided with one or more refluxing openings that directing material is back to first esterifier that are used for; When being a plurality of refluxing opening, said a plurality of refluxing openings are located at the bottom of different chamber separately.
In above-mentioned arbitrary technical scheme; Part or all of said chamber can correspondence be provided with additive conduit and whisking appliance; Said additive conduit is inserted in the said chamber corresponding with it, and the stirring main part of said whisking appliance extends in the said chamber corresponding with it.
The edge of the bottom of said additive conduit preferably is lower than the edge of the upper end of said dividing plate.
Each cavity bottom of said reactor drum kettle should be provided with a material discharging hole at least.
Preferably, the wall of said reactor drum kettle adopts in double-deck jacket structured and/or said chamber and is provided with heating coil, and said reactor drum kettle is provided with the import and export of the heating medium that connects said jacket structured inner chamber and said heating coil.
Can be provided with in each said chamber or be not provided with guide shell, when said guide shell was set, the lower end mouth of pipe of said additive conduit and the stirring main part of said whisking appliance extended in the said guide shell.
Beneficial effect of the present invention: because this second esterifier adopts horizontal setting; And adopt dividing plate that it is divided into a plurality of chambers, therefore can multiple different additives be joined in the carboxylate of the different Zhi Huadus in the different chamber, and guarantee the reaction times of each chamber; Simplified operation; Improved quality product, and through hole or the breach etc. that are positioned at the dividing plate top and the bottom form gas and liquid medium passage respectively, have guaranteed that the order of medium flows;
Owing to can according to actual needs the length of each chamber be arranged to equate or do not wait, therefore can control various materials (comprising carboxylate) exactly, thereby accurately control the Zhi Huadu of reactant at each chamber in the residence time of different chamber;
Because each chamber is provided with whisking appliance and heating coil separately, and independent control separately, help realizing the accurate control of different Zhi Huadus.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
As shown in Figure 1; The invention provides a kind of poly terephthalic acid 1, second esterifier in the ammediol ester continuous production device comprises reactor drum kettle 1; Said reactor drum kettle is horizontal kettle; Be provided with one or more dividing plate 4 in it, said dividing plate is separated at least two chambers with the internal space of said reactor drum kettle, leaves spacing between the inwall on the upper limb of said dividing plate and said reactor drum kettle top.The length of each said chamber can be arranged to equate or do not wait according to concrete processing requirement and practical situation; For example can be according to the carboxylate difference of the required residence time in each said chamber; The position of dividing plate is set; Thereby said chamber is arranged to different length, thereby realizes bigger controlled leeway being provided the carboxylate interpolation different additive and/or the catalyzer of different Zhi Huadus with the residence time of control material in each chamber.
Said dividing plate bottom can be provided with through hole or the breach that supplies material stream passed; Said through hole or breach are preferably semi-circular through hole or breach; Also can be crescent or other suitable shape, particularly semicircle, the bottom interior wall of its semicircular straight flange and said reactor drum kettle is fitted.Carboxylate gets into that said through hole or the breach through said dividing plate bottom flows to Way out behind the said reactor drum kettle; Because the difference of the residence time; Carboxylate has different Zhi Huadus at each chamber, from the ingress chamber to the exit chamber, the Zhi Huadu of carboxylate raises successively.
Be typically provided with material inlet 3 and material outlet on the said reactor drum kettle; Said material outlet can comprise liquid phase material outlet 7 and gaseous phase materials outlet 10; Said material inlet is positioned at the bottom of said reactor drum kettle one side; Said liquid phase material outlet is positioned at the bottom of said reactor drum kettle opposite side; The outlet of said material inlet and said liquid phase material communicates with two chambers that material passes in and out said second esterifier respectively, and the top of said reactor drum kettle is located in said gaseous phase materials outlet, is preferably the top of reactor drum kettle opposite side.
Said reactor drum kettle top can also be provided with safety relief mouth 9; Said reactor drum autoclave body bottom can also be provided with one or more refluxing openings 8 that directing material is back to first esterifier that are used for; When being a plurality of refluxing opening, said a plurality of refluxing openings are located at the bottom of different chamber separately.The carboxylate that has additive and/or catalyzer in the said reactor drum kettle can be back in said first esterifier through Melt Pump through said refluxing opening again.
Part or all of said chamber can correspondence be provided with additive conduit 6 and whisking appliance 2; Said additive conduit is inserted in the said chamber corresponding with it; And extend in the corresponding said chamber; The stirring main part of said whisking appliance extends in the said chamber corresponding with it; By electric motor driving, whisking appliance transmission mechanism transmission driven rotary, the connecting interface 11 that the stirring main part of said whisking appliance is connected with the whisking appliance transmission mechanism is arranged on the said reactor drum kettle, and said whisking appliance can be the whisking appliance of various suitable stirring polyester reactants under the prior art.
The edge of the bottom of said additive conduit preferably is lower than the edge of the upper end of said dividing plate; Can guarantee that like this additive can successfully join in the specified chamber; Thereby realized in a said reactor drum, multiple different additives being joined in the carboxylate of different Zhi Huadus, improved product quality and performances.
Each cavity bottom of said reactor drum kettle should be provided with a material discharging hole at least; Can discharge all leftover materials through this material discharging hole in case of necessity; Both can simplify cleaning operation, and can avoid carboxylate etc. to remain in the said chamber again and influence the quality of the carboxylate of subsequent production each chamber in the reactor drum.
The wall of said reactor drum kettle adopts in double-deck jacket structured and/or said chamber and is provided with heating coil, and said reactor drum kettle is provided with the import and export 12 of the heating medium that connects said jacket structured inner chamber and said heating coil.Import and export through said heating medium feeds heating medium to said jacket structured inner chamber, can make the reaction mass thermally equivalent better, improves the heat transfer in the reactor drum; Feed heating medium to said heating coil circulation, help improving localized heat transfer and intensification in the chamber.Said heating coil can be arranged in the part or all of said chamber, quantity and position are set can confirm the specific requirement of conducting heat according to concrete esterification of the import and export of said heating coil, heating medium.
According to concrete service condition; Can be provided with or not be provided with guide shell 5 in each said chamber; When said guide shell is set; Said guide shell preferably is arranged on the position of the horizontal center of corresponding chambers, leaves certain interval between the bottom margin of said guide shell and the bottom surface of chamber, not influence the proper flow of reactant etc.The lower end mouth of pipe of said additive conduit and the stirring main part of said whisking appliance extend in the said guide shell.
Adopt the present invention; Not only simple to operate, easy to use; Can easily be implemented in the carboxylate that the different intermediate reaction stages obtains different Zhi Huadus; Can also through control easily with adjust in the carboxylate of different Zhi Huadus the mode that adds different additive obtain better quality and than dominance can esterification products, have broad application prospects.
Claims (10)
1. poly terephthalic acid 1; Second esterifier in the ammediol ester continuous production device; Comprise the reactor drum kettle; It is characterized in that said reactor drum kettle is horizontal kettle, be provided with one or more dividing plate in it, the internal space of said reactor drum kettle is separated at least two chambers; Said dividing plate bottom is provided with through hole or the breach that supplies the reaction mass circulation, leaves spacing or said dividing plate top between the inwall at least a portion upper limb of said dividing plate and said reactor drum kettle top and leaves through hole or go up breach.
2. poly terephthalic acid 1 as claimed in claim 1, second esterifier in the ammediol ester continuous production device is characterized in that said through hole or breach are semicircle, crescent or other suitable shape.
3. poly terephthalic acid 1 as claimed in claim 2, second esterifier in the ammediol ester continuous production device is characterized in that the length of each said chamber is arranged to equate or do not wait.
4. poly terephthalic acid 1 as claimed in claim 3; Second esterifier in the ammediol ester continuous production device; It is characterized in that said reactor drum kettle is provided with material inlet and material outlet; Said material outlet comprises liquid phase material outlet and gaseous phase materials outlet, and said material inlet is positioned at the bottom/bottom of said reactor drum kettle one side, and said liquid phase material outlet and gaseous phase materials outlet lay respectively at the bottom/bottom and the reactor drum kettle top of said reactor drum kettle opposite side.
5. poly terephthalic acid 1 as claimed in claim 4; Second esterifier in the ammediol ester continuous production device; It is characterized in that said reactor drum kettle top also is provided with the safety relief mouth; Said reactor drum autoclave body bottom also is provided with one or more refluxing openings that directing material is back to first esterifier that are used for, and when being a plurality of refluxing opening, said a plurality of refluxing openings are located at the bottom of different chamber separately.
6. like claim 1,2,3,4 or 5 described poly terephthalic acids 1; Second esterifier in the ammediol ester continuous production device; It is characterized in that also being provided with additive conduit and the whisking appliance corresponding with part or all of said chamber; Said additive conduit is inserted in the said chamber corresponding with it, and the stirring main part of said whisking appliance extends in the said chamber corresponding with it.
7. poly terephthalic acid 1 as claimed in claim 6, second esterifier in the ammediol ester continuous production device is characterized in that the lower end edge of said additive conduit is lower than the upper end edge of said dividing plate.
8. poly terephthalic acid 1 as claimed in claim 7, second esterifier in the ammediol ester continuous production device is characterized in that each cavity bottom of said reactor drum kettle is provided with a material discharging hole at least.
9. poly terephthalic acid 1 as claimed in claim 8; Second esterifier in the ammediol ester continuous production device; The wall that it is characterized in that said reactor drum kettle adopts in double-deck jacket structured and/or said chamber and is provided with heating coil, and said reactor drum kettle is provided with the import and export of the heating medium that connects said jacket structured inner chamber and said heating coil.
10. poly terephthalic acid 1 as claimed in claim 9; Second esterifier in the ammediol ester continuous production device; It is characterized in that being provided with or not being provided with in each said chamber guide shell; When said guide shell was set, the lower end mouth of pipe of said additive conduit and the stirring main part of said whisking appliance extended in the said guide shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110265689A CN102311541A (en) | 2011-09-08 | 2011-09-08 | Second esterification reactor in continuous production device of poly (trimethylene terephthalate) |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110265689A CN102311541A (en) | 2011-09-08 | 2011-09-08 | Second esterification reactor in continuous production device of poly (trimethylene terephthalate) |
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| CN102311541A true CN102311541A (en) | 2012-01-11 |
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| CN201110265689A Pending CN102311541A (en) | 2011-09-08 | 2011-09-08 | Second esterification reactor in continuous production device of poly (trimethylene terephthalate) |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103464073A (en) * | 2013-08-21 | 2013-12-25 | 中国恩菲工程技术有限公司 | Horizontal kettle |
| CN107930555A (en) * | 2017-11-30 | 2018-04-20 | 万华化学集团股份有限公司 | Prepare staged horizontal mechanically stirred airlift bioreator and the application of ethylbenzene hydroperoxide |
| CN112844280A (en) * | 2020-12-23 | 2021-05-28 | 中国纺织科学研究院有限公司 | Horizontal reaction kettle, functional polyester production system applying same and production method |
| CN112844278A (en) * | 2020-12-23 | 2021-05-28 | 中国纺织科学研究院有限公司 | Functional polyester production system and production method and horizontal reaction kettle |
| CN112934150A (en) * | 2020-12-29 | 2021-06-11 | 中国纺织科学研究院有限公司 | Biodegradable copolyester production system, preparation method and copolyester |
| CN114733451A (en) * | 2022-04-15 | 2022-07-12 | 青岛科技大学 | Continuous gas-liquid reaction device with adjustable residence time |
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| CN101580974A (en) * | 2009-05-31 | 2009-11-18 | 中国纺织工业设计院 | Continuous cation modified polyester preparation method and system for continuously preparing modified polyester melt and lateral slice by adopting same |
| CN101654513A (en) * | 2009-09-14 | 2010-02-24 | 江苏中鲈科技发展股份有限公司 | Method and device for continuously producing poly terephthalic acid-1, 3-propylene glycol ester |
| CN201517081U (en) * | 2009-09-29 | 2010-06-30 | 江苏中鲈科技发展股份有限公司 | Device for continuously producing poly-para-phenylene phthalate-1,3-propylene glycol ester |
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2011
- 2011-09-08 CN CN201110265689A patent/CN102311541A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101580974A (en) * | 2009-05-31 | 2009-11-18 | 中国纺织工业设计院 | Continuous cation modified polyester preparation method and system for continuously preparing modified polyester melt and lateral slice by adopting same |
| CN101654513A (en) * | 2009-09-14 | 2010-02-24 | 江苏中鲈科技发展股份有限公司 | Method and device for continuously producing poly terephthalic acid-1, 3-propylene glycol ester |
| CN201517081U (en) * | 2009-09-29 | 2010-06-30 | 江苏中鲈科技发展股份有限公司 | Device for continuously producing poly-para-phenylene phthalate-1,3-propylene glycol ester |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103464073A (en) * | 2013-08-21 | 2013-12-25 | 中国恩菲工程技术有限公司 | Horizontal kettle |
| CN107930555A (en) * | 2017-11-30 | 2018-04-20 | 万华化学集团股份有限公司 | Prepare staged horizontal mechanically stirred airlift bioreator and the application of ethylbenzene hydroperoxide |
| CN107930555B (en) * | 2017-11-30 | 2021-04-20 | 万华化学集团股份有限公司 | Multistage horizontal stirring airlift reactor for preparing ethylbenzene hydroperoxide and application |
| CN112844280A (en) * | 2020-12-23 | 2021-05-28 | 中国纺织科学研究院有限公司 | Horizontal reaction kettle, functional polyester production system applying same and production method |
| CN112844278A (en) * | 2020-12-23 | 2021-05-28 | 中国纺织科学研究院有限公司 | Functional polyester production system and production method and horizontal reaction kettle |
| CN112844278B (en) * | 2020-12-23 | 2023-02-28 | 中国纺织科学研究院有限公司 | Functional polyester production system and production method and horizontal reaction kettle |
| CN112934150A (en) * | 2020-12-29 | 2021-06-11 | 中国纺织科学研究院有限公司 | Biodegradable copolyester production system, preparation method and copolyester |
| CN114733451A (en) * | 2022-04-15 | 2022-07-12 | 青岛科技大学 | Continuous gas-liquid reaction device with adjustable residence time |
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Inventor after: Xu Xianwen Inventor after: Feng Cunli Inventor after: Gu Aijun Inventor after: Yang Jianchuan Inventor after: Li Shengxing Inventor before: Xu Xianwen Inventor before: Gu Aijun Inventor before: Yang Jianchuan Inventor before: Li Shengxing |
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Effective date of registration: 20120412 Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Applicant after: China National Petroleum Corporation Co-applicant after: China Kunlun Contracting & Engineering Corporation Address before: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Applicant before: China National Petroleum Corporation Co-applicant before: China Textile Industry Design Institute |
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Application publication date: 20120111 |