CN104262144B - Isooctyl acrylate monomer esterification system and device - Google Patents

Isooctyl acrylate monomer esterification system and device Download PDF

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Publication number
CN104262144B
CN104262144B CN201410490949.4A CN201410490949A CN104262144B CN 104262144 B CN104262144 B CN 104262144B CN 201410490949 A CN201410490949 A CN 201410490949A CN 104262144 B CN104262144 B CN 104262144B
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removing column
reboiler
weight
connects
lightness
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CN104262144A (en
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梁效成
陆新元
张孝俤
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Jiangsu Guojiao Chemical Technology Co Ltd
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Jiangsu Guojiao Chemical Technology Co Ltd
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Abstract

The present invention relates to a kind of Isooctyl acrylate monomer esterification system and device.It includes lightness-removing column, weight-removing column, condenser, reboiler, equipped with preheater on the feed pipe of lightness-removing column side, lightness-removing column lower end connects the pipeline of reboiler and separates in the middle of a branch road connection weight-removing column, equipped with circulating pump on the entrance point pipeline of reboiler lower end, the entrance point pipeline of the reboiler of weight-removing column lower end connects has arm to lead to vaporizer, vaporizer upper end connects condenser by pipeline, the outlet of condenser connects delivery pump, condenser is transported to the centre position of weight-removing column by delivery pump, the side of vaporizer is equipped with steam inlet pipe and steam condensate (SC) outlet, the steam outlet pipe of vaporizer connects the heating inlet tube of preheater, the condensating water outlet tube of preheater connects and leads to circulating flow water tank.Advantage be design the most ingenious, all available resources of Appropriate application, play the saving energy, reduce production cost problem, device production efficiency is high, and reaction effect is good.

Description

Isooctyl acrylate monomer esterification system and device
Technical field
The present invention relates to Isooctyl acrylate monomer production field, be specifically related to a kind of Isooctyl acrylate monomer esterification system Bulk cargo is put.
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 Miscible, it is practically insoluble in water, the dissolubility 0.01% in 25 DEG C of water.Easily polymerization, industrial goods can use 100ppm Hydroquinone or 50-100ppm hydroquinone monomethyl ether make polymerization inhibitor.Isooctyl acrylate monomer Huang color is third The different monooctyl ester of olefin(e) acid, another name: acrylic acid-2-ethyl caproite, molecular formula (Formula): C11H20O2, molecule Amount (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 ° C, boiling point 215-219 DEG C, refractive index 1.434-1.436, flash-point 82 DEG C, water solublity < 0.1g/100 mL at 22℃.2-ethyl hexyl acrylate is the monomer of high molecular polymer, with other monomers carry out copolymerization, Crosslinking, grafting wait until acrylic resin product, for synthetic fabrics processing, binding agent, coating, mould Many aspects such as material is modified.
The preparation method of Isooctyl acrylate monomer: direct esterification acrylic acid and 2-Ethylhexyl Alcohol are with sulphuric acid as catalyst It is esterified, more neutralized, dealcoholysis and rectification obtain finished product.Ester-interchange method acrylic acid methyl ester. and 2-Ethylhexyl Alcohol exist Carry out ester exchange reaction in the presence of catalyst titanium tetrachloride and generate acrylic acid-2-ethyl caproite, prepare into through rectification Product.
The Isooctyl acrylate monomer technological process of production is the most perfect at present, still suffers from some problems, example in production process As steam utilization is incomplete, waste heat energy, the defects such as condensed water does not recycles, and process units efficiency is low, make Become the wasting of resources, increase production cost.
Summary of the invention
In order to solve foregoing invention problem, the present invention proposes a kind of Isooctyl acrylate monomer esterification system dress Put, design the most ingenious, all available resources of Appropriate application, play the saving energy, reduce production cost and ask Topic, device production efficiency is high, and reaction effect is good.
In order to reach foregoing invention purpose, the present invention proposes techniques below scheme:
Isooctyl acrylate monomer esterification system and device, it includes lightness-removing column, weight-removing column, condenser, reboiler, Centre position, lightness-removing column side is equipped with feed pipe, and lightness-removing column top connects condenser, and condenser one end connects de- Light side, tower upper end, weight-removing column top connects the side, upper end of weight-removing column equipped with condenser, one end of condenser, The side, lower end of lightness-removing column is equipped with reboiler, and lightness-removing column lower end connects reboiler lower end by pipeline, on reboiler Holding and connect lightness-removing column middle and lower part by pipeline, the lower end of weight-removing column is also equipped with reboiler, and weight-removing column lower end is by pipe Road connects reboiler lower end, and reboiler upper end connects weight-removing column middle and lower part, lightness-removing column side feed pipe by pipeline On equipped with preheater, lightness-removing column lower end connects the pipeline of reboiler and separates a branch road and connect in the middle of weight-removing column, then Equipped with circulating pump on the entrance point pipeline of boiling device lower end, the entrance point pipeline connection of the reboiler of weight-removing column lower end has props up Pipe leads to vaporizer, and vaporizer upper end connects condenser by pipeline, and the outlet of condenser connects delivery pump, cold Condenser is transported to the centre position of weight-removing column by delivery pump, and the side of described vaporizer is equipped with steam inlet pipe With steam condensate (SC) outlet, described preheater side is equipped with heating inlet tube and condensating water outlet tube, evaporation The steam outlet pipe of device connects the heating inlet tube of preheater, and the condensating water outlet tube of preheater connects and leads to circulation Water tank.
Described reboiler, is arranged at the bottom of described weight-removing column, and including housing, described housing two ends seal even Being connected to upper cover and lower cover, described upper cover is provided with gaseous state outlet, and described lower cover is provided with liquid inlet tube, institute State to be installed with inside lower cover and be arranged on described liquid inlet tube jet path, for by described liquid import Pipe sprays into the distributing disc that liquid is uniform, and this distributing disc includes disk body, described disk body offers with the disk body center of circle is Some through holes of center annular array;The cross section of described disk body is curved;The perforated area of described disk body is more than The cross-sectional area of described liquid inlet tube;More than the 1/2 of a diameter of described housing cross-sectional diameter of described disk body; Reboiler also includes being seal-installed on the tube sheet at described housing two ends, two ends seal, with tube sheet, the some row installed Pipe;Meanwhile, liquid inlet tube is connected to the bottom of weight-removing column, and gaseous state outlet is connected to the middle and lower part of weight-removing column; Described upper end, housing side is equipped with steam inlet pipe, and lower end is equipped with steam outlet pipe.
Described vaporizer, is provided with motor reducer, material distributor, rotor, scraper plate, evaporator one, steams Send out tank two, vacuum pump connector, steam inlet, steam condensate (SC) outlet, material inlet, discharging opening, rotor Upper end is provided with motor reducer, and lower end extends in material distributor, and material distributor is true by which is provided with Empty pump connector is connected with external vacuum pump, and material distributor interior lower end is provided with scraper plate, and scraper plate is arranged on rotor On, material distributor is provided with material inlet near the upper end of scraper plate, and material distributor lower end is fixed with evaporation successively Tank one and evaporator two, two evaporators are equipped with inside and outside two-layer, material distributor inside and evaporator one and steaming The internal layer sending out tank two communicates, and scraper plate is against the inwall upper end of evaporator one, between the inside and outside wall of two evaporators For being equipped with steam inlet and steam condensate (SC) outlet on hollow structure, and outer wall, set in the bottom of evaporator two There is discharging opening.
Described weight-removing column includes top, middle part and bottom, and top interior is equipped with backflow distributor, middle part For stripping section and side line rectifying section, equipped with next door between stripping section and side line rectifying section, stripping section upper end and top Junction is mesh plate, and stripping section lower end and bottom junctions are mesh plates, side line rectifying section upper end and top Junction, portion is solid separator, and side line rectifying section and bottom junctions are mesh plates.
Described backflow distributor includes adapter and distributor, and the bottom of described adapter is fixed with distributor, The top of described adapter is fixed with upper connecting tube by elbow, and the end of described upper connecting tube is provided with flange;Institute The distributor stated is disk body shape, is provided with distribution house steward, described distribution house steward sets uniformly in described disk body Having perpendicular distribution to be in charge of, described distribution supervisor and distribution are in charge of and are evenly equipped with open-work respectively.
It is an advantage of the invention that design is simple, resource utilization is high, reduces energy waste, reduces production cost, Preheater is installed in lightness-removing column front end, and utilizes the waste heat of the steam condensate (SC) of vaporizer to heat, not only can be right Material preheats, and also heat energy is made full use of, and final condensed water is transported to circulating flow water tank recycling;
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the present invention.
Fig. 2 is the schematic diagram of the reboiler of the present invention.
Fig. 3 is the schematic diagram of the vaporizer of the present invention.
Fig. 4 is the schematic diagram of the weight-removing column of the present invention.
Fig. 5 is the schematic side view of the backflow distributor of the present invention.
Fig. 6 is the elevational schematic view of the backflow distributor of the present invention.
Detailed description of the invention
In order to the present invention is further described, introduce below in conjunction with Figure of description:
Referring to the drawings, Isooctyl acrylate monomer esterification system and device, it include lightness-removing column 1, weight-removing column 2, Condenser 3, reboiler, centre position, lightness-removing column 1 side is equipped with feed pipe, and the connection of lightness-removing column 1 top has cold Condenser 3, condenser 3 one end connects side, lightness-removing column 1 upper end, and weight-removing column 2 top is equipped with condenser, condensation One end of device connects the side, upper end of weight-removing column 2, and the side, lower end of lightness-removing column 1 is equipped with reboiler, lightness-removing column 1 Lower end connects reboiler lower end by pipeline, and reboiler upper end connects lightness-removing column 1 middle and lower part, de-weight by pipeline The lower end of tower 2 is also equipped with reboiler, and weight-removing column 2 lower end connects reboiler lower end, reboiler upper end by pipeline Weight-removing column 2 middle and lower part is connected, equipped with preheater 5, lightness-removing column 1 on the feed pipe of lightness-removing column 1 side by pipeline Lower end connects the pipeline of reboiler and separates in the middle of a branch road connection weight-removing column 2, reboiler lower end entrance point pipeline On equipped with circulating pump 6, the entrance point pipeline of the reboiler of weight-removing column 2 lower end connects has arm to lead to vaporizer 7, Vaporizer 7 upper end connects condenser by pipeline, and the outlet of condenser connects delivery pump 8, and condenser is by defeated Sending pump 8 to be transported to the centre position of weight-removing column 2, the side of described vaporizer 7 is equipped with steam inlet pipe and steaming Vapour condensating water outlet tube, described preheater 5 side is equipped with heating inlet tube and condensating water outlet tube, vaporizer Steam outlet pipe connect the heating inlet tube of preheater 5, the condensating water outlet tube of preheater 5 connects to lead to and follows Ring water tank 9.
Described reboiler, is arranged at described lightness-removing column 1 or the bottom of weight-removing column 2, including housing 41, institute Stating housing 41 two ends and be sealedly connected with upper cover 44 and lower cover 45, described upper cover 44 is provided with gaseous state outlet 46, Described lower cover 45 is provided with liquid inlet tube 47, and internal being installed with of described lower cover 45 is arranged at described liquid On state inlet tube 47 jet path, for described liquid inlet tube 47 is sprayed into the uniform distributing disc of liquid 48, This distributing disc 48 includes disk body, described disk body offers the some of annular array centered by the disk body center of circle and leads to Hole;The cross section of described disk body is curved;The perforated area of described disk body is more than described liquid inlet tube 47 Cross-sectional area;More than the 1/2 of a diameter of described housing 41 cross-sectional diameter of described disk body;Reboiler also wraps Include and be seal-installed on the tube sheet 42 at described housing 41 two ends, two ends seal, with tube sheet 42, the some tubulations installed 43;Meanwhile, liquid inlet tube 47 is connected to the bottom of weight-removing column 1, and gaseous state outlet 47 is connected to weight-removing column The middle and lower part of 1, described upper end, housing 41 side is equipped with steam inlet pipe 410, and lower end is equipped with steam outlet pipe 411。
Described vaporizer 7, be provided with motor reducer 71, material distributor 72, rotor 73, scraper plate 76, Evaporator 1, evaporator 2 75, vacuum pump connector 77, steam inlet 79, steam condensate (SC) outlet 710, material inlet 711, discharging opening 78, rotor 73 upper end is provided with motor reducer 71, and lower end extends to In material distributor 72, material distributor 72 is by the vacuum pump connector 77 which is provided with and external vacuum Pump is connected, and material distributor 72 interior lower end is provided with scraper plate 76, and scraper plate 76 is arranged on rotor 73, material Distributor 72 is provided with material inlet 711 near the upper end of scraper plate 76, and material distributor 72 lower end is fixed successively Having evaporator 1 and evaporator 2 75, two evaporators are equipped with inside and outside two-layer, in material distributor 72 Portion communicates with the internal layer of evaporator 1 and evaporator 2 75, and scraper plate 76 is against the inwall of evaporator 1 Upper end, is to be equipped with steam inlet 79 on hollow structure, and outer wall and steam between the inside and outside wall of two evaporators Vapour condensation-water drain 710, is provided with discharging opening 78 in the bottom of evaporator 2 75.
Described weight-removing column 2, including top 21, middle part 22 and bottom 23, top 21 is internal equipped with backflow Liquid distributor 29, middle part is divided into stripping section 24 and side line rectifying section 25, stripping section 24 and side line rectifying section 25 Between equipped with next door 27, stripping section 24 upper end and junction, top are mesh plates 26, stripping section 24 lower end Being mesh plate 26 with bottom junctions, side line rectifying section 25 upper end and junction, top 21 are solid separator 28, side line rectifying section 25 and bottom junctions are mesh plates 26.
Described backflow distributor 29 includes adapter 291 and distributor 292, the end of described adapter 291 End is fixed with distributor 292, and the top of described adapter 291 is fixed with upper connecting tube 294 by elbow 293, The end of described upper connecting tube 294 is provided with flange 295;Described distributor 292 is disk body shape, described dish Body is provided with distribution house steward 296, described distribution house steward 296 is provided with perpendicular distribution uniformly and divides Pipe 297, described distribution supervisor 296 and distribution are in charge of on 297 and are evenly equipped with open-work 298 respectively.
When the present invention uses, the heavy component material of weight-removing column tower bottom is transported in vaporizer by delivery pump, enters Row heating evaporation, can produce a kind of gaseous material polymerization inhibitor, gaseous material polymerization inhibitor from vacuum pump connector by The vacuum pump in portion is extracted out, is transported in condenser, becomes liquid polymerization inhibitor by condensation, finally by conveying It is pumped into weight-removing column centre position, carries out in weight-removing column centre position throwing in polymerization inhibitor, it is possible to effectively play steady Fixed effect, prevents material generation polyreaction in tower reactor, generates viscous cake mass;Steaming after vaporizer Vapour, including gaseous state and liquid condensation water, contains substantial amounts of heat energy here, and these heat energy is used for being passed through preheating In device, the material through preheater can be heated to general more than 100 degree of uniform temperature, the most not only heat energy Make full use of, also preventing cold material from causing the low phenomenon of feed separation efficiency, gaseous state and liquid in putting into lightness-removing column Condensed water is after preheater, and cooling completely becomes liquid, can be directly placed into circular water replenishing cabinet and recycle, Also without again cooling down.

Claims (5)

  1. null1. Isooctyl acrylate monomer esterification system and device,It includes lightness-removing column、Weight-removing column、Condenser、Reboiler,Centre position, lightness-removing column side is equipped with feed pipe,Lightness-removing column top connects condenser,Condenser one end connects side, lightness-removing column upper end,Weight-removing column top is equipped with condenser,One end of condenser connects the side, upper end of weight-removing column,The side, lower end of lightness-removing column is equipped with reboiler,Lightness-removing column lower end connects reboiler lower end by pipeline,Reboiler upper end connects lightness-removing column middle and lower part by pipeline,The lower end of weight-removing column is also equipped with reboiler,Weight-removing column lower end connects reboiler lower end by pipeline,Reboiler upper end connects weight-removing column middle and lower part by pipeline,It is characterized in that on the feed pipe of lightness-removing column side equipped with preheater,Lightness-removing column lower end connects the pipeline of reboiler and separates in the middle of a branch road connection weight-removing column,Equipped with circulating pump on the entrance point pipeline of reboiler lower end,The entrance point pipeline of the reboiler of weight-removing column lower end connects has arm to lead to vaporizer,Vaporizer upper end connects condenser by pipeline,The outlet of condenser connects delivery pump,Condenser is transported to the centre position of weight-removing column by delivery pump,The side of described vaporizer is equipped with steam inlet pipe and steam condensate (SC) outlet,Described preheater side is equipped with heating inlet tube and condensating water outlet tube,The steam outlet pipe of vaporizer connects the heating inlet tube of preheater,The condensating water outlet tube of preheater connects and leads to circulating flow water tank.
  2. Isooctyl acrylate monomer esterification system and device the most according to claim 1, it is characterized in that described reboiler, it is arranged at the bottom of described weight-removing column, including housing, described housing two ends are sealedly connected with upper cover and lower cover, described upper cover is provided with gaseous state outlet, described lower cover is provided with liquid inlet tube, it is installed with inside described lower cover and is arranged on described liquid inlet tube jet path, for described liquid inlet tube is sprayed into the distributing disc that liquid is uniform, this distributing disc includes disk body, some through holes of annular array centered by the disk body center of circle are offered on described disk body;The cross section of described disk body is curved;The perforated area of described disk body is more than the cross-sectional area of described liquid inlet tube;More than the 1/2 of a diameter of described housing cross-sectional diameter of described disk body;Reboiler also includes being seal-installed on the tube sheet at described housing two ends, two ends seal, with tube sheet, the some tubulations installed;Meanwhile, liquid inlet tube is connected to the bottom of weight-removing column, and gaseous state outlet is connected to the middle and lower part of weight-removing column;Described upper end, housing side is equipped with steam inlet pipe, and lower end is equipped with steam outlet pipe.
  3. nullIsooctyl acrylate monomer esterification system and device the most according to claim 1,It is characterized in that described vaporizer,It is provided with motor reducer、Material distributor、Rotor、Scraper plate、Evaporator one、Evaporator two、Vacuum pump connector、Steam inlet、Steam condensate (SC) exports、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 vacuum 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 is internal to be communicated with the internal layer of evaporator one and evaporator two,And scraper plate is against the inwall upper end of evaporator one,It it is hollow structure between the inside and outside wall of two evaporators,And on outer wall, it is equipped with steam inlet and steam condensate (SC) outlet,It is provided with discharging opening in the bottom of evaporator two.
  4. Isooctyl acrylate monomer esterification system and device the most according to claim 1, it is characterized in that described weight-removing column includes top, middle part and bottom, top interior is equipped with backflow distributor, middle part is divided into stripping section and side line rectifying section, equipped with next door between stripping section and side line rectifying section, stripping section upper end and junction, top are mesh plates, stripping section lower end and bottom junctions are mesh plates, side line rectifying section upper end and junction, top are solid separator, and side line rectifying section and bottom junctions are mesh plates.
  5. Isooctyl acrylate monomer esterification system and device the most according to claim 4, it is characterized in that described backflow distributor includes adapter and distributor, the bottom of described adapter is fixed with distributor, the top of described adapter is fixed with upper connecting tube by elbow, and the end of described upper connecting tube is provided with flange;Described distributor is disk body shape, is provided with distribution house steward, described distribution house steward is provided with perpendicular distribution uniformly and is in charge of in described disk body, and described distribution supervisor and distribution are in charge of and are evenly equipped with open-work respectively.
CN201410490949.4A 2014-09-24 Isooctyl acrylate monomer esterification system and device Active CN104262144B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410490949.4A CN104262144B (en) 2014-09-24 Isooctyl acrylate monomer esterification system and device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410490949.4A CN104262144B (en) 2014-09-24 Isooctyl acrylate monomer esterification system and device

Publications (2)

Publication Number Publication Date
CN104262144A CN104262144A (en) 2015-01-07
CN104262144B true CN104262144B (en) 2017-01-04

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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

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