CN202594783U - Device for purifying hydrogen peroxide serving as production raw material of caprolactam - Google Patents
Device for purifying hydrogen peroxide serving as production raw material of caprolactam Download PDFInfo
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- CN202594783U CN202594783U CN 201220228499 CN201220228499U CN202594783U CN 202594783 U CN202594783 U CN 202594783U CN 201220228499 CN201220228499 CN 201220228499 CN 201220228499 U CN201220228499 U CN 201220228499U CN 202594783 U CN202594783 U CN 202594783U
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Abstract
The utility model relates to a hydrogen peroxide purification device, in particular to a device for purifying hydrogen peroxide serving as production raw material of caprolactam. The device comprises a macroporous adsorption resin column, wherein the macroporous adsorption resin column comprises a barrel, and an upper pipe joint plate and a lower pipe joint plate are arranged in the barrel; a water distributor with a long water cap is arranged below the upper pipe joint plate; the upper end of the barrel is provided with a resin inlet, a feeding pipeline and an exhaust valve; the exhaust valve is connected with an upper pressure sensor and a lower pressure sensor which are arranged on the side face of the barrel; the lower end of the barrel is provided with a discharging pipeline; and the side face of the lower end of the barrel is provided with a resin outlet. The upper and lower pressure sensors on the resin column are combined with a programmable logic controller (PLC), so that the pressure is automatically adjusted, and phenomena of the pressure holding of equipment and possibly caused explosion are avoided. Due to the mode of connecting the pipe joint plates and the water cap, the hydrogen peroxide is uniformly distributed and is prevented from remaining in the dead angle of the pipeline, unsafe factors in the production of the hydrogen peroxide are reduced, and the safety and stability of the production are improved.
Description
Technical field
The utility model relates to a kind of device that is used for the ydrogen peroxide 50 purifying, particularly a kind of caprolactam production raw material that is used for---the device of ydrogen peroxide 50 purifying.
Background technology
Hexanolactam is the important source material of chemical fibre and engineering plastics, and product and development and national economy and people's lives are closely bound up, along with the progressively raising of fast development of national economy and living standards of the people, to the increasing demand growth of caprolactam product.At present, there are the company more than 40 of more than 20 countries and regions, factory using different processes route production hexanolactam in the world.Two big core technologies of Sinopec---cyclohexanone oxamidinating prepares the R&D work that OxiKhim-Styrol and cyclohexane bionic catalyzed oxidation prepare pimelinketone and has all obtained breakthrough.The principal feature of this method is to prepare azanol and azanol and pimelinketone reaction generation OxiKhim-Styrol in same reactor drum, to accomplish.The production of OxiKhim-Styrol is made up of operations such as reaction, solvent recuperation, extracted in toluene, the rectifying of toluene oxime, in reaction system, uses ydrogen peroxide 50.Produce H at present both at home and abroad
2O
2Almost all employing is anthraquinone, and typical process process synoptic diagram is as shown in Figure 1.Based on above production technology principle; In the process of producing ydrogen peroxide 50, produce a small amount of anthraquinone type organic; Along with the device growth of working time, anthraquinone type organic content also can increase to some extent, is converted to organic carbon content; Generally below 300ppm (the device long operational time reaches 400ppm sometimes, even higher).The ydrogen peroxide 50 that contains organic carbon like use carries out OxiKhim-Styrol production, will bring this part organism in the finished product hexanolactam into, brings influence for the polishing and the product purity of product.Therefore, ydrogen peroxide 50 needs purifying, that is needs to remove the organic carbon in the ydrogen peroxide 50.Caprolactam product uses the purification on adsorbent resins ydrogen peroxide 50 that the benefit of three aspects is arranged: the high-grade-goods rate that 1, improves the finished product; 2, prolong resin working time and life-span; 3, alleviate environmental protection treatment pressure, because anthraquinones uses common biochemical mode to be difficult to decompose.
The disclosed patent about the ydrogen peroxide 50 purification process mainly contains following several kinds at present: the one, and adopt organic carbon absorption to add the zwitterion exchange process; Like CN1285311A; It is through adsorbing with organic carbon in the pump input adsorption column with raw material hydrogen peroxide; Afterwards feed liquid is got into anion-cation exchange resin again and carry out IX, obtain ultrapure ydrogen peroxide 50 product after again feed liquid being removed granule foreign with strainer.The 2nd, adopt anion-cation exchange resin to add mixed bed ion exchange resin method, like CN1439600A.Preceding two kinds of method ydrogen peroxide 50 utilize low, and processing cost is high, inferior separating effect, and purity does not reach defectives such as requirement.The 3rd, the employing macroporous adsorbent resin adds the treatment process of anion-cation exchange resin, like CN1669144A.The 4th, the employing polymeric adsorbent gets into ion-exchange resin purification such as CN101249953A after handling and adopting condensing surface to lower the temperature afterwards again.Three, the 4th kind of method do not fully take into account the unstable and labile characteristic of ydrogen peroxide 50, do not consider the dead pin problem of sealing gland and pipeline in the equipment design, and the initiation container builds the pressure and explodes easily in suitability for industrialized production.
Summary of the invention
It is a kind of simple in structure, safe and reliable that the purpose of the utility model is to provide, and combines PLC to carry out automatic pressure through the last lower pressure sensor on the resin column and regulate, prevent a kind of ydrogen peroxide 50 purification devices of the blast that builds the pressure and possibly cause in the equipment.It has overcome the above-mentioned deficiency that prior art exists.
In order to realize above-mentioned utility model purpose; The technical scheme that the utility model adopts is: comprise macroporous adsorptive resins; Described macroporous adsorptive resins includes the resin column cylindrical shell, the pipe fishplate bar is installed in the described resin column cylindrical shell and manages fishplate bar down, and described below of going up the pipe fishplate bar is equipped with the water distributor that has long water cap; Resin inlet, feeding pipe and vent valve are equipped with in the upper end of described resin column cylindrical shell; Vent valve is connected with lower pressure sensor with the upward pressure transmitter that install resin column cylindrical shell side, and the discharging pipeline is equipped with in the lower end of described resin column cylindrical shell, and the side of described resin column cylindrical shell lower end has the resin outlet.
Described upward pressure transmitter and lower pressure sensor are by the PLC time variable control.
Described pipe fishplate bar and the material of pipe fishplate bar down of going up is a kind of among PP, PVC, PE, PES, SUS304, SUS304L, SUS316, the SUS316L.
The described water distributor material that has long water cap is a kind of among PP, PVC, PE, PES, SUS304, SUS304L, SUS316, the SUS316L.
Described long water cap is a kind of in turriform water cap, lamination water cap, the internal thread water cap.
The beneficial effect of the utility model is: the utility model can be applicable to single-column, the technology of two posts or series connection of above resin column or parallel running, the quality product and the production safety of assurance ydrogen peroxide 50.
Combining PLC to carry out automatic pressure through the last lower pressure sensor on the resin column regulates, prevents the blast that builds the pressure and possibly cause in the equipment.Through the mode of connection of pipe fishplate bar with long water cap, and use long water cap in the filtration unit, can improve ydrogen peroxide 50 cloth liquid effect, charging is even, prevents to collude stream and bias current situation and takes place.The utility model is avoided the residual of the dead pin feed liquid of pipeline through using the pipe fishplate bar, reduces the loss of material.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Fig. 1 is the process flow sheet of prior art;
Fig. 2 is the process flow sheet of the utility model;
Fig. 3 is the structural representation of the utility model;
Fig. 4 is the pipe fishplate bar of the utility model and the vertical view of long water cap.
Among the figure: 1. ydrogen peroxide 50 industrial raw material jar; 2. desalination water pot; 3. regenerator jar; 4. ydrogen peroxide 50 specification product jar; 5. useless regenerator jar; 6. macroporous adsorptive resins; 7. macroporous adsorptive resins; 8. macroporous adsorptive resins; 9. pump; 10. net the formula accurate filter; 11. resin inlet; 12. last pipe fishplate bar; 13. resin column cylindrical shell; 14. resin outlet; 15. following pipe fishplate bar; 16. feeding pipe; 17. vent valve; 18. upward pressure transmitter; 19. long water cap; 20. lower pressure sensor; 21. discharging pipeline.
Embodiment
The utility model is to realize through following technology: with the anthraquinone ydrogen peroxide 50 industrial raw material of producing; Utilize pump input single-column; The macroporous adsorptive resins of two posts or above series connection or two post parallel runnings; Carry out organic removal, adopt net formula accurate filter that resin is filtered behind the adsorption column, obtain the specification product of ydrogen peroxide 50 at last.Resin can come into operation after the regeneration of organic solvent regenerator again, contains organic organic solvent and after rectifying tower rectifying, can use as regenerator repeatedly.
Wherein said macroporous adsorptive resins includes resin column cylindrical shell 13; Pipe fishplate bar 12 is installed in the described resin column cylindrical shell 13 and manages fishplate bar 15 down; Described below of going up pipe fishplate bar 12 is equipped with the water distributor that has long water cap 19; Resin inlet 11, feeding pipe 16 and vent valve 17 are equipped with in the upper end of described resin column cylindrical shell 13; Vent valve 17 is connected with lower pressure sensor 20 with the upward pressure transmitter 18 that install resin column cylindrical shell 13 sides, and discharging pipeline 21 is equipped with in the lower end of described resin column cylindrical shell 13, and the side of described resin column cylindrical shell 13 lower ends has resin outlet 14.Described upward pressure transmitter 18 and lower pressure sensor 20 are by the PLC time variable control.Last pipe fishplate bar 12 and pipe fishplate bar 15 materials down are a kind of among PP, PVC, PE, PES, SUS304, SUS304L, SUS316, the SUS316L.The material that has the water distributor of long water cap 19 is a kind of among PP, PVC, PE, PES, SUS304, SUS304L, SUS316, the SUS316L.Long water cap 19 is a turriform water cap, lamination water cap, a kind of in the internal thread water cap.
In order to make technique means of the present invention, creation characteristic, purpose and effect are easy to understand, and below in conjunction with concrete diagram, further set forth the utility model.Among Fig. 2 the anthraquinone ydrogen peroxide 50 industrial raw material of producing is stored in the ydrogen peroxide 50 industrial raw material jar 1; Utilize pump 9 to import in the macroporous adsorptive resins 6,7,8 of series connection of at least two posts or two post parallel runnings and carry out organic removal; Adopt 10 pairs of resins of net formula accurate filter to filter after the adsorption column; Obtain the specification product of ydrogen peroxide 50 at last, be stored in the ydrogen peroxide 50 specification product jar 4.With the de-mineralized water in the desalination water pot 2, utilize pump 9 to be input to and carry out feed liquid displacement in the resin in the macroporous adsorptive resins 6,7,8 afterwards.During resin regeneration the organic solvent regenerator in the regenerator jar 3 is input in the macroporous adsorptive resins 6,7,8 and carries out resin regeneration, the regenerator after the regeneration is input in the useless regenerator jar 5, and regenerator can use as regenerator after rectifying tower rectifying repeatedly.
After macroporous adsorbent resin adds from resin inlet 11 among Fig. 3; After the process de-mineralized water is rinsed well; The ydrogen peroxide 50 industrial raw material is imported from feeding pipe 16 through pump; On the process pipe fishplate bar 12 and with the water distributor uniform distribution that has long water cap 19 that is connected of pipe fishplate bar, the ydrogen peroxide 50 raw material uniform with resin column cylindrical shell 13 in resin contact fully, organism gradually by resin absorption; Remove organic ydrogen peroxide 50 stably through resin column cylindrical shell 13, the following pipe fishplate bar 15 through resin column cylindrical shell 13 bottoms flows out from discharging pipeline 21 again.When lower pressure sensor 20 pressure signals exceed 1bar than upward pressure transmitter 18, open vent valve 17 by the program of PLC control and carry out release.When lower pressure sensor 20 pressure signals and upward pressure transmitter 18 pressure differences during less than 0.5bar, by the stop vent valve 17 of PLC control.When the ability that no longer has an adsorb organic compound when resin need be changed, resin was discharged from resin outlet 14.
Claims (5)
1. one kind is used for the caprolactam production raw material---the device of ydrogen peroxide 50 purifying; Comprise macroporous adsorptive resins; It is characterized in that: described macroporous adsorptive resins includes resin column cylindrical shell (13); Pipe fishplate bar (12) is installed in the described resin column cylindrical shell (13) and manages fishplate bar (15) down; Described below of going up pipe fishplate bar (12) is equipped with the water distributor that has long water cap (19), and resin inlet (11), feeding pipe (16) and vent valve (17) are equipped with in the upper end of described resin column cylindrical shell (13), and vent valve (17) is connected with lower pressure sensor (20) with the upward pressure transmitter (18) that install resin column cylindrical shell (13) side; Discharging pipeline (21) is equipped with in the lower end of described resin column cylindrical shell (13), and the side of described resin column cylindrical shell (13) lower end has resin outlet (14).
2. a kind of caprolactam production raw material that is used for according to claim 1---the device of ydrogen peroxide 50 purifying is characterized in that: described upward pressure transmitter (18) and lower pressure sensor (20) are by the PLC time variable control.
3. a kind of caprolactam production raw material that is used for according to claim 1---the device of ydrogen peroxide 50 purifying is characterized in that: described pipe fishplate bar (12) and the material of managing fishplate bar (15) down of going up is a kind of among PP, PVC, PE, PES, SUS304, SUS304L, SUS316, the SUS316L.
4. a kind of caprolactam production raw material that is used for according to claim 1---the device of ydrogen peroxide 50 purifying is characterized in that: the described water distributor material that has long water cap (19) is a kind of among PP, PVC, PE, PES, SUS304, SUS304L, SUS316, the SUS316L.
5. a kind of caprolactam production raw material that is used for according to claim 1---the device of ydrogen peroxide 50 purifying is characterized in that: described long water cap (19) is a kind of in turriform water cap, lamination water cap, the internal thread water cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220228499 CN202594783U (en) | 2012-05-21 | 2012-05-21 | Device for purifying hydrogen peroxide serving as production raw material of caprolactam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220228499 CN202594783U (en) | 2012-05-21 | 2012-05-21 | Device for purifying hydrogen peroxide serving as production raw material of caprolactam |
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| CN202594783U true CN202594783U (en) | 2012-12-12 |
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| CN 201220228499 Expired - Lifetime CN202594783U (en) | 2012-05-21 | 2012-05-21 | Device for purifying hydrogen peroxide serving as production raw material of caprolactam |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106167251A (en) * | 2016-07-12 | 2016-11-30 | 中国石油化工股份有限公司 | Warning interlock system and warning interlocking method for resin bed monitoring temperature |
| CN106185831A (en) * | 2016-07-12 | 2016-12-07 | 中国石油化工股份有限公司 | A kind of adsorption tanks for hydrogen peroxide purge process |
| CN106197713A (en) * | 2016-07-12 | 2016-12-07 | 中国石油化工股份有限公司 | A kind of temperature monitoring method of the resin absorption tank for hydrogen peroxide purification |
| CN111252740A (en) * | 2020-01-21 | 2020-06-09 | 西安蓝晓科技新材料股份有限公司 | Novel method for purifying hydrogen peroxide |
-
2012
- 2012-05-21 CN CN 201220228499 patent/CN202594783U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106167251A (en) * | 2016-07-12 | 2016-11-30 | 中国石油化工股份有限公司 | Warning interlock system and warning interlocking method for resin bed monitoring temperature |
| CN106185831A (en) * | 2016-07-12 | 2016-12-07 | 中国石油化工股份有限公司 | A kind of adsorption tanks for hydrogen peroxide purge process |
| CN106197713A (en) * | 2016-07-12 | 2016-12-07 | 中国石油化工股份有限公司 | A kind of temperature monitoring method of the resin absorption tank for hydrogen peroxide purification |
| CN106185831B (en) * | 2016-07-12 | 2018-07-20 | 中国石油化工股份有限公司 | A kind of adsorption tanks for dioxygen water purification process |
| CN111252740A (en) * | 2020-01-21 | 2020-06-09 | 西安蓝晓科技新材料股份有限公司 | Novel method for purifying hydrogen peroxide |
| CN111252740B (en) * | 2020-01-21 | 2024-02-06 | 西安蓝晓科技新材料股份有限公司 | Novel method for purifying hydrogen peroxide |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20121212 |
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| CX01 | Expiry of patent term |