CN104225942A - System device for recycling condensed water of evaporators in esterification reaction of isooctyl acrylate - Google Patents
System device for recycling condensed water of evaporators in esterification reaction of isooctyl acrylate Download PDFInfo
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- CN104225942A CN104225942A CN201410490828.XA CN201410490828A CN104225942A CN 104225942 A CN104225942 A CN 104225942A CN 201410490828 A CN201410490828 A CN 201410490828A CN 104225942 A CN104225942 A CN 104225942A
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- evaporator
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- condensation water
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Abstract
The invention relates to the field of recycling of condensed water of evaporators in an esterification reaction of isooctyl acrylate, and in particular to a system device for recycling condensed water of an evaporator in esterification reaction of the isooctyl acrylate. The system device comprises a light component removal tower, the evaporator, a circulating water replenishment cabinet and a reboiler, wherein the reboiler is mounted on one side of the lower end of the light component removal tower; a material preheater is mounted at the front end of the light component removal tower; a heating coil pipe is mounted in the preheater; the inlet of the heating coil pipe is connected with the steam condensed water outlet of the evaporator; the outlet of the heating coil pipe is communicated to the circulating water replenishment cabinet. The system device has the advantages of simple design and convenience in operation and use, the condensed water of the evaporator can be recycled for heating materials, and the phenomena of heat energy waste and excessively cold materials are eliminated.
Description
Technical field
The present invention relates to evaporator condensation water recycling field in Isooctyl acrylate monomer esterification, be specifically related to evaporator condensation water reutilization system device in a kind of Isooctyl acrylate monomer esterification.
Background technology
Isooctyl acrylate monomer, water white transparency body.Fusing point-90 DEG C, boiling point 215-219 DEG C, 123-127 DEG C (8.0kPa), relative density 0.8859(20/4 DEG C), refractive index 1.4358, flash-point 82 DEG C.Energy and alcohol; Ether is miscible, water-soluble hardly, the solubility 0.01% in 25 DEG C of water.Easy polymerization, industrial goods can make polymerization inhibitor with 100ppm hydroquinones or 50-100ppm hydroquinone monomethyl ether.The yellow color of Isooctyl acrylate monomer be Isooctyl acrylate monomer, another name: acrylic acid-2-ethyl caproite, molecular formula (Formula): C11H20O2, molecular weight (Molecular Weight): 184.28, CAS No.:103-11-7, quality index (Specification) content (Purity): 99.50%, physico-chemical property (Physical Properties) density 0.885, fusing point-90 ° of C, boiling point 215-219 ° C, refractive index 1.434-1.436, flash-point 82 ° of C, water-soluble <0.1 g/100 mL at 22 ° of C.2-ethyl hexyl acrylate is the monomer of high molecular polymer, carries out copolymerization, crosslinked, grafting waits until acrylic resin product, for the synthesis of many aspects such as fabric processing, adhesive, coating, modifying plastics with other monomers.
The preparation method of Isooctyl acrylate monomer:
1. direct esterification acrylic acid and 2-Ethylhexyl Alcohol are that catalyst carries out esterification with sulfuric acid, then through neutralization, dealcoholysis and rectifying obtain finished product.2. ester-interchange method methyl acrylate and 2-Ethylhexyl Alcohol carry out ester exchange reaction and generate acrylic acid-2-ethyl caproite under catalyst titanium tetrachloride exists, and obtain finished product through rectifying.
In process of production, steam after using in evaporimeter in Isooctyl acrylate monomer esterification is directly discharged, cause the waste of heat and water resource, directly by condensation recycle-water, heat still can be wasted, and material drops in lightness-removing column simultaneously, and material is in normal temperature state to drop into, easily cause in lightness-removing column and catch a cold suddenly, affect the feed separation effect in lightness-removing column.
Summary of the invention
In order to solve foregoing invention problem, the present invention proposes evaporator condensation water reutilization system device in a kind of Isooctyl acrylate monomer esterification, simplicity of design, easy for operation, evaporator condensation water can utilize heated material again, not only solve thermal waste phenomenon, also solve material surfusion.
In order to reach foregoing invention object, the present invention proposes following technical scheme:
Evaporator condensation water reutilization system device in Isooctyl acrylate monomer esterification, it comprises lightness-removing column, evaporimeter, circular water replenishing cabinet and reboiler, reboiler is equipped with in described side, lightness-removing column lower end, material preheater is equipped with in lightness-removing column front end, preheater is built with heat(ing) coil, the import of heat(ing) coil connects the steam-condensation water out of evaporimeter, and the outlet of heat(ing) coil connects leads in circulating flow water tank.
Described evaporimeter, be provided with motor reducer, material distributor, rotor, scraper plate, evaporator one, evaporator two, vavuum pump connector, steam inlet, steam-condensation water out, material inlet, discharging opening, rotor upper end is provided with motor reducer, lower end extends in material distributor, material distributor is connected with external vacuum pump by the vavuum pump connector which is provided with, material distributor interior lower end is provided with scraper plate, scraper plate is arranged on rotor, material distributor is provided with material inlet near the upper end of scraper plate, material distributor lower end is fixed with evaporator one and evaporator two successively, two evaporators are equipped with inside and outside two-layer, material distributor inside communicates with the internal layer of evaporator one and evaporator two, and scraper plate is near the inwall upper end of evaporator one, it is hollow structure between the inside and outside wall of two evaporators, and outer wall is equipped with steam inlet and steam-condensation water out, discharging opening is provided with in the bottom of evaporator two, steam-condensation water out connects the import of the heat(ing) coil leading to preheater.
Described reboiler, be arranged at the bottom of described lightness-removing column, comprise housing, described housing two ends are sealedly connected with upper cover and low head, described upper cover is provided with gas phase pipe, and described low head is provided with liquid-phase tube, and described low head inside is installed with and is arranged on described liquid-phase tube jet path, for described liquid-phase tube is sprayed into the uniform distributing disc of liquid, this distributing disc comprises disk body, described disk body offers some through holes of annular array centered by the disk body center of circle; The cross section of described disk body is curved; The perforated area of described disk body is greater than the cross-sectional area of described liquid-phase tube; The diameter of described disk body is more than 1/2 of described housing cross-sectional diameter; Reboiler also comprises the tube sheet, two ends and the tube sheet that are seal-installed on described housing two ends and seals the some tubulations installed; Meanwhile, liquid-phase tube is connected to the bottom of lightness-removing column, and gas phase pipe is connected to the middle and lower part of lightness-removing column; Steam inlet pipe is equipped with in described upper end, housing side, and steam-condensation water outlet pipe is equipped with in lower end.
Advantage of the present invention is simplicity of design, easy to use, preheater is equipped with in lightness-removing column front end, not only the heat of the condensed water in evaporimeter is utilized again, also guarantee that material can not temperature be too low just drops in lightness-removing column, affect the effect of feed separation, do not need after steam condensate (SC) utilizes again to be cooled to liquid again, can directly enter circular water replenishing cabinet, condensed water is recycled again, adopt this device, not only play effects of energy saving and emission reduction, also improve production efficiency.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention.
Fig. 2 is the schematic diagram of evaporimeter of the present invention.
Fig. 3 is the schematic diagram of reboiler of the present invention.
Detailed description of the invention
Introduce in order to the present invention is further described, the present invention is in conjunction with Figure of description introduction:
With reference to accompanying drawing 1, evaporator condensation water reutilization system device in Isooctyl acrylate monomer esterification, it comprises lightness-removing column 1, evaporimeter 2, circular water replenishing cabinet 3 and reboiler 4, reboiler 4 is equipped with in described side, lightness-removing column 1 lower end, material preheater 5 is equipped with in lightness-removing column 1 front end, preheater 5 is built with heat(ing) coil 6, and the import of heat(ing) coil 6 connects the steam-condensation water out of evaporimeter, and the outlet of heat(ing) coil 6 connects leads in circulating flow water tank 3.
Described evaporimeter 2, be provided with motor reducer 21, material distributor 22, rotor 23, scraper plate 26, evaporator 1, evaporator 2 25, vavuum pump connector 27, steam inlet 29, steam-condensation water out 210, material inlet 211, discharging opening 28, rotor 23 upper end is provided with motor reducer 21, lower end extends in material distributor 22, material distributor 22 is connected with external vacuum pump by the vavuum pump connector 27 which is provided with, material distributor 22 interior lower end is provided with scraper plate 26, scraper plate 26 is arranged on rotor 23, material distributor 22 is provided with material inlet 211 near the upper end of scraper plate 26, material distributor 22 lower end is fixed with evaporator 1 and evaporator 2 25 successively, two evaporators are equipped with inside and outside two-layer, material distributor 22 inside communicates with the internal layer of evaporator 1 and evaporator 2 25, and scraper plate 26 is near the inwall upper end of evaporator 1, it is hollow structure between the inside and outside wall of two evaporators, and outer wall is equipped with steam inlet 29 and steam-condensation water out 210, discharging opening 28 is provided with in the bottom of evaporator 2 25, steam-condensation water out 210 connects the import of the heat(ing) coil 6 leading to preheater 5.
Described reboiler 4, be arranged at the bottom of described lightness-removing column 1, comprise housing 41, described housing 41 two ends are sealedly connected with upper cover 44 and low head 45, described upper cover 44 is provided with gas phase pipe 46, described low head 45 is provided with liquid-phase tube 47, described low head 45 inside is installed with and is arranged on described liquid-phase tube 47 jet path, for described liquid-phase tube 47 is sprayed into the uniform distributing disc of liquid 48, this distributing disc 48 comprises disk body 49, described disk body 49 offers some through holes of annular array centered by the disk body center of circle; The cross section of described disk body 49 is curved; The perforated area of described disk body 49 is greater than the cross-sectional area of described liquid-phase tube 47; The diameter of described disk body 49 is more than 1/2 of described housing 41 cross-sectional diameter; Reboiler 4 also comprises the tube sheet 42, two ends and the tube sheet 42 that are seal-installed on described housing 41 two ends and seals the some tubulations 43 installed; Meanwhile, liquid-phase tube 47 is connected to the bottom of lightness-removing column 1, and gas phase pipe 47 is connected to the middle and lower part of lightness-removing column 1; Steam inlet pipe 410 is equipped with in described upper end, housing 41 side, and steam-condensation water outlet pipe 411 is equipped with in lower end.
When the present invention uses, steam after evaporator, comprise gaseous state and liquid condensation water, here containing a large amount of heat energy, these heat energy are used for passing in preheater, can the heating material through preheater to general more than 100 degree of uniform temperature, so not only heat energy is made full use of, also cause the low phenomenon of feed separation efficiency preventing cold material from dropping in lightness-removing column, gaseous state and liquid condensation water are after preheater, cooling becomes liquid completely, directly can put into circular water replenishing cabinet and recycle, also not need again to cool.
Claims (3)
1. evaporator condensation water reutilization system device in Isooctyl acrylate monomer esterification, it comprises lightness-removing column, evaporimeter, circular water replenishing cabinet and reboiler, it is characterized in that reboiler is equipped with in described side, lightness-removing column lower end, material preheater is equipped with in lightness-removing column front end, preheater is built with heat(ing) coil, the import of heat(ing) coil connects the steam-condensation water out of evaporimeter, and the outlet of heat(ing) coil connects leads in circulating flow water tank.
2. evaporator condensation water reutilization system device in Isooctyl acrylate monomer esterification according to claim 1, it is characterized in that described evaporimeter, be provided with motor reducer, material distributor, rotor, scraper plate, evaporator one, evaporator two, vavuum pump connector, steam inlet, steam-condensation water out, material inlet, discharging opening, rotor upper end is provided with motor reducer, lower end extends in material distributor, material distributor is connected with external vacuum pump by the vavuum pump connector which is provided with, material distributor interior lower end is provided with scraper plate, scraper plate is arranged on rotor, material distributor is provided with material inlet near the upper end of scraper plate, material distributor lower end is fixed with evaporator one and evaporator two successively, two evaporators are equipped with inside and outside two-layer, material distributor inside communicates with the internal layer of evaporator one and evaporator two, and scraper plate is near the inwall upper end of evaporator one, it is hollow structure between the inside and outside wall of two evaporators, and outer wall is equipped with steam inlet and steam-condensation water out, discharging opening is provided with in the bottom of evaporator two, steam-condensation water out connects the import of the heat(ing) coil leading to preheater.
3. evaporator condensation water reutilization system device in Isooctyl acrylate monomer esterification according to claim 1, it is characterized in that described reboiler, be arranged at the bottom of described lightness-removing column, comprise housing, described housing two ends are sealedly connected with upper cover and low head, described upper cover is provided with gas phase pipe, described low head is provided with liquid-phase tube, described low head inside is installed with and is arranged on described liquid-phase tube jet path, for described liquid-phase tube is sprayed into the uniform distributing disc of liquid, this distributing disc comprises disk body, described disk body offers some through holes of annular array centered by the disk body center of circle, the cross section of described disk body is curved, the perforated area of described disk body is greater than the cross-sectional area of described liquid-phase tube, the diameter of described disk body is more than 1/2 of described housing cross-sectional diameter, reboiler also comprises the tube sheet, two ends and the tube sheet that are seal-installed on described housing two ends and seals the some tubulations installed, meanwhile, liquid-phase tube is connected to the bottom of lightness-removing column, and gas phase pipe is connected to the middle and lower part of lightness-removing column, steam inlet pipe is equipped with in described upper end, housing side, and steam-condensation water outlet pipe is equipped with in lower end.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410490828.XA CN104225942A (en) | 2014-09-24 | 2014-09-24 | System device for recycling condensed water of evaporators in esterification reaction of isooctyl acrylate |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410490828.XA CN104225942A (en) | 2014-09-24 | 2014-09-24 | System device for recycling condensed water of evaporators in esterification reaction of isooctyl acrylate |
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| CN104225942A true CN104225942A (en) | 2014-12-24 |
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| CN201410490828.XA Pending CN104225942A (en) | 2014-09-24 | 2014-09-24 | System device for recycling condensed water of evaporators in esterification reaction of isooctyl acrylate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106698558A (en) * | 2015-07-29 | 2017-05-24 | 江苏国胶化学科技有限公司 | Wastewater treatment system realizing high recovery rate |
| WO2019041063A1 (en) * | 2017-09-04 | 2019-03-07 | 李军 | Isooctyl acrylate esterification reaction system device |
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| US6727383B1 (en) * | 1998-03-31 | 2004-04-27 | Basf Aktiengesellschaft | Method for producing acrylic acid and acrylic acid esters |
| CN202376788U (en) * | 2011-12-30 | 2012-08-15 | 青州天安化工有限公司 | Novel reboiler for distillation tower |
| CN104014143A (en) * | 2014-05-30 | 2014-09-03 | 江苏嘉泰蒸发结晶设备有限公司 | Multiple-effect evaporation system steam condensation water heat energy reutilizationoun device |
| CN204170436U (en) * | 2014-09-24 | 2015-02-25 | 南通中泰化工有限公司 | Evaporator condensation water reutilization system device in Isooctyl acrylate monomer esterification |
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2014
- 2014-09-24 CN CN201410490828.XA patent/CN104225942A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6727383B1 (en) * | 1998-03-31 | 2004-04-27 | Basf Aktiengesellschaft | Method for producing acrylic acid and acrylic acid esters |
| CN202376788U (en) * | 2011-12-30 | 2012-08-15 | 青州天安化工有限公司 | Novel reboiler for distillation tower |
| CN104014143A (en) * | 2014-05-30 | 2014-09-03 | 江苏嘉泰蒸发结晶设备有限公司 | Multiple-effect evaporation system steam condensation water heat energy reutilizationoun device |
| CN204170436U (en) * | 2014-09-24 | 2015-02-25 | 南通中泰化工有限公司 | Evaporator condensation water reutilization system device in Isooctyl acrylate monomer esterification |
Non-Patent Citations (2)
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| 刘天成等: "《化工原理》", 31 January 2014, article "蒸发", pages: 194-199 * |
| 吕常钦: "《丙烯酸及酯生产与管理》", 31 July 2009, article "丙烯酸正丁酯工艺流程叙述" * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106698558A (en) * | 2015-07-29 | 2017-05-24 | 江苏国胶化学科技有限公司 | Wastewater treatment system realizing high recovery rate |
| WO2019041063A1 (en) * | 2017-09-04 | 2019-03-07 | 李军 | Isooctyl acrylate esterification reaction system device |
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Address after: The Yangtze River town of Rugao city of Jiangsu province in 226532 in Nantong city (Rugao port) Yuejiang road Fine Chemical Industrial Park No. 1 Applicant after: JIANGSU GUOJIAO CHEMICAL TECHNOLOGY CO., LTD. Address before: The Yangtze River town of Rugao city of Jiangsu province in 226532 in Nantong city (Rugao port) Yuejiang road Fine Chemical Industrial Park No. 1 Applicant before: NANTONG ZHONGTAI CHEMICAL CO., LTD. |
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Free format text: CORRECT: APPLICANT; FROM: NANTONG ZHONGTAI CHEMICAL INDUSTRY CO., LTD. TO: JIANGSU GUOJIAO CHEMICAL TECHNOLOGY CO., LTD. |
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Application publication date: 20141224 |