CN104744638B - A kind of energy-conserving and environment-protective technique for producing MBS resins - Google Patents
A kind of energy-conserving and environment-protective technique for producing MBS resins Download PDFInfo
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- CN104744638B CN104744638B CN201510185168.9A CN201510185168A CN104744638B CN 104744638 B CN104744638 B CN 104744638B CN 201510185168 A CN201510185168 A CN 201510185168A CN 104744638 B CN104744638 B CN 104744638B
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Abstract
The invention provides a kind of energy-conserving and environment-protective new technology for producing MBS resins.The technique is:The chuck mode of heating outside original reactor is replaced to heat the material in polymerization reaction kettle using the steam direct heating mode in reactor, i.e.,:Set in polymerization reaction kettle and terminate the active adapter of liftable under a steam-heating pipe being passed through from Shang Gai in reactor, steam-heating pipe, curve bend is terminated under the active adapter of liftable;Some nozzles are set on the inside of curve bend.Steam is by steam-heated pipe line and be located at the nozzle of steam-heated pipe line bottom directly reaction mass is heated, and makes reaction mass homogeneous heating.The present invention is replaced using the steam direct heating mode in reactor after the chuck mode of heating outside original reactor, steam has been saved, the consumption of pure water has been reduced, shortens the reaction time, the kiss-coating skinning on reactor wall is avoided, the discharge of Industrial Solid waste is reduced.
Description
Technical field
It is more particularly to a kind of to be steamed using in reactor the present invention relates to a kind of energy-conserving and environment-protective new technology for producing MBS resins
The energy-conserving and environment-protective new technology for the production MBS resins that the mode that vapour directly heats is heated to the material in polymerization reaction kettle.
Background technology
As a kind of MBS of high performance plastic impact-resistance modifier, (methyl methacrylate-butadiene-styrene is common
Polymers) resin, it is widely used for plastic processing industry, the annual consumption in the whole world is about at more than 100 ten thousand tons, and China is annual
Consumption is at 200,000 tons or so.MBS resins are to be obtained by styrene-butadiene latex graft phenylethene, methyl methacrylate by emulsion polymerization
A kind of terpolymer arrived, its submicro-morphological has typical nucleocapsid structure, and core is rubber phase, and shell is resin phase.
MBS resins are added in PVC process can improve and improve PVC shock resistance, processing characteristics.
In MBS productions, emulsion polymerization is a crucial building-up process, and its quality reacted directly affects the matter of product
Amount, material unit consumption and energy resource consumption and three waste discharge.The specific production process of emulsion grafting polymerization method of MBS productions is as follows:
It will be added to by styrene-butadiene latex made from emulsion polymerization and methyl methacrylate, styrene and water in defined ratio
In polymerization reaction kettle, emulsifying agent is added, appropriate initiator is added after agitated emulsification and carries out emulsion grafting polymerization reaction, polymerization
65 DEG C or so of temperature, polymerization time 5h or so;After polymerisation terminates, then through cohesion, centrifugation, dry, extruding pelletization, obtain
To MBS resins.
Traditional MBS production technologies be in tank reactor (i.e. polymerization reaction kettle) outside, by the way of chuck is heated pair
Material in polymerization reaction kettle is heated, uneven due to heating, and causes the ramming material kiss-coating on reactor kettle wall, influences heat
Conduction, the quality of product and the consumption of the energy can be influenceed when serious, therefore, often cleaning reactor forms and substantial amounts of gets a foothold useless
Thing.
The content of the invention
It is an object of the invention to:Overcome the deficiencies in the prior art there is provided it is a kind of solve to produce in emulsion polymerization
The energy-conserving and environment-protective new technology of the production MBS resins of ramming material kiss-coating problem on reactor kettle wall.
To achieve the above object, present invention employs following technical scheme:
A kind of energy-conserving and environment-protective new technology for producing MBS resins, it is characterised in that:Using the steam direct heating in reactor
Mode replaces the chuck mode of heating outside original reactor to heat the material in polymerization reaction kettle, i.e.,:It is anti-in polymerization
Answer and steam heater is set in kettle;The steam heater is that lid is passed through the steam-heating pipe in reactor from reactor
Road, steam-heated pipe line bottom is provided with some nozzles, and steam is sprayed by steam-heated pipe line from nozzle, directly to reaction mass
Heated, make reaction mass homogeneous heating.
Further, the steam heater is covered from reactor including one and led to vertically by the perforate of kettle wall more nearby
Enter the steam-heating pipe in reactor, steam-heating pipe bottom is provided with curve bend;Some nozzles are provided with the inside of curve bend.
Further, the curve bend equipped with nozzle in the steam heater is liftable, can pass through liter
Curve bend of the drop equipped with nozzle heats to adjust steam to the different parts of material, to ensure homogeneous heating.
Further, the steam heater, including one from reactor lid by the perforate of kettle wall more nearby erect
The steam-heating pipe led directly in reactor, in addition to a liftable being flexibly connected with steam-heating pipe lower end is active connects
Pipe;The active adapter bottom of liftable is provided with curve bend;Some nozzles are provided with the inside of curve bend.
Further, steam-heating pipe lower end is provided with internal thread, and the active adapter upper end of liftable is provided with external screw thread, can risen
The active adapter of drop between steam-heating pipe by internal and external screw thread with being flexibly connected.
Further, curve bend is fixedly connected with the active adapter of liftable.
Further, reaction just starts, and when material in reactor is less, the bend pipe that will be equipped with nozzle drops to reactor
Heated bottom;Nozzle location is stepped up in course of reaction, it is remained in the middle part of material in reactor, with
Ensure homogeneous heating.
Further, a kind of energy-conserving and environment-protective new technology for producing MBS resins of the present invention, specific production process is as follows:Will
Styrene-butadiene latex, methyl methacrylate, styrene and pure water are added in polymerization reaction kettle according to a certain percentage, add emulsification
Agent, adds appropriate initiator and carries out emulsion grafting polymerization reaction at a certain temperature, using the above method after agitated emulsification
Steam heater is set in polymerization reaction kettle, directly reaction mass heated by introducing the steam in reactor;
After polymerisation terminates, then through cohesion, centrifugation, dry, extruding pelletization, obtain MBS resins.
In aforementioned production method, the amount of being actually added into of pure water, by production MBS resins per ton than original (emulsion polymerization
Required pure water consumption) reduce by 200 kilograms of pure water consumptions calculating.
Beneficial effects of the present invention:
The present invention the problem of ramming material kiss-coating, improves production in order to solve to produce in emulsion polymerization on reactor kettle wall
The Processes and apparatus of MBS resins, employs steam heating in reactor and replaces original chuck to heat, steam is heated by steam
Pipeline and the nozzle being provided thereon directly heat reaction mass, steam is equably heated to material;Can also be by rising
Bend pipe of the drop equipped with nozzle adjusts the different parts of steam heated material, such as, when reaction just starts, and material is less can be by
Bend pipe equipped with nozzle drops in the bottom heating of reactor, course of reaction and is stepped up nozzle location, remains it in thing
The middle part of material is to ensure homogeneous heating.
After new production technology and equipments, following positive effect is achieved:
1st, steam saving:Originally ton/ton MBS the resins of mean consumption steam 2.3, present ton/ton of mean consumption steam 1.7
MBS resins, reduce steam consumption more than 26%.
2nd, the consumption of pure water is reduced:Water in original reaction is to use pure water, the condensation of present steam direct heating formation
Water directly in a kettle., thus reduces the consumption of pure water, and MBS resins per ton can reduce by 200 kilograms of pure water.In addition, by
Made in pure water in pure water device, pure water per ton will consume more than 2 tons of running water, while discharge is more than 1 ton
Waste water, so reducing pure water consumption has not only saved running water, and reduces energy consumption, water consume and the waste water during pure water processed
Discharge.
3rd, the reaction time is shortened:Due to using steam direct heating, the efficiency of heat conduction is improved, makes material quickly equal
Even heating, can reduce 1 more than hour per a batch of reaction time, be dropped to 4 hours from original 5 hours, save
The 20% of reaction unit energy expenditure.
4th, the kiss-coating skinning on reactor wall is avoided, conventional product per ton at least produces 20 kilograms of kiss-coating skinning solid waste
Thing, reduces the discharge of Industrial Solid waste.
Brief description of the drawings
Fig. 1 is the structural representation of the steam heater in the present invention.
In figure, 1, steam-heating pipe 2, the active adapter 3 of liftable, curve bend 4, nozzle
Embodiment
Below in conjunction with specific embodiments and the drawings, the invention will be further described.These specific embodiments are served only for explanation
Certain specific embodiment of the present invention, those skilled in the art can be by content disclosed in the present specification easily
Solve other advantages and effect of the present invention.The present invention can also by way of a different and different embodiment be carried out or should
With the various details in this specification can also be carried out each based on different viewpoints and application under the spirit without departing substantially from the present invention
Plant modifications and changes.
Embodiment 1
A kind of energy-conserving and environment-protective new technology for producing MBS resins of the present invention, using the steam direct heating mode in reactor
The material in polymerization reaction kettle is heated instead of the steam jacket mode of heating outside original reactor, i.e.,:It is anti-in polymerization
Answer and a steam heater is set in kettle;As shown in figure 1, the steam heater, including one from reactor lid lean on kettle wall
Perforate more nearby is passed through the steam-heating pipe 1 in reactor vertically, in addition to one is flexibly connected with steam-heating pipe lower end
The active adapter 2 of liftable;Steam-heating pipe lower end is provided with internal thread, and the active adapter upper end of liftable is provided with external screw thread, can risen
The active adapter of drop between steam-heating pipe by internal and external screw thread with being flexibly connected;The active adapter lower end of liftable is provided with solid with it
Surely the curve bend 3 connected;Some nozzles 4 are provided with the inside of curve bend.
Using above-mentioned steam heater and after being passed through steam in polymerization reaction kettle in MBS production of resins, steam leads to
Cross steam-heating pipe and enter reactor, then by the active adapter of the liftable connected with steam-heating pipe, with liftable is active connects
The curve bend of pipe connection, finally sprays from the nozzle being located on curve bend, directly reaction mass is heated, makes reaction
Material homogeneous heating.
It is liftable with the active curve bend equipped with nozzle being connected of taking in above-mentioned steam heater.Anti-
Should just it start, when material in reactor is less, the bend pipe that will be equipped with nozzle drops to the bottom of reactor and heated;Course of reaction
In be stepped up nozzle location, it is remained in the middle part of material in reactor, to ensure homogeneous heating.
Embodiment 2
A kind of energy-conserving and environment-protective new technology for producing MBS resins of the present invention, specific production process is as follows:Emulsion polymerization will be passed through
The obtained styrene-butadiene latex of reaction and methyl methacrylate, styrene and pure water are added to polymerization reaction kettle according to a certain percentage
In, emulsifying agent is added, appropriate initiator is added after agitated emulsification and carries out emulsion grafting polymerization reaction, 65 DEG C of left sides of polymerization temperature
It is right (method that steam heater as described in example 1 above is set in polymerization reaction kettle to be used, by introducing in reactor
Steam is directly heated to reaction mass), polymerization time 5h or so;After polymerisation terminates, then through condensing, centrifuging,
Dry, extruding pelletization, obtains MBS resins.
In aforementioned production method, the amount of being actually added into of pure water, by production MBS resins per ton than original (emulsion polymerization
Required pure water consumption) reduce by 200 kilograms of pure water consumptions calculating.
Production result shows that the present invention is using in the energy-conserving and environment-protective new technology and reactor of production MBS resins described above
After steam heater, compared to the original steam jacket mode of heating using outside reactor, achieve following obvious beneficial
Effect:
1st, steam saving:Originally ton/ton MBS the resins of mean consumption steam 2.3, present ton/ton of mean consumption steam 1.7
MBS resins, reduce steam consumption more than 26%.
2nd, the consumption of pure water is reduced:Water in original reaction is to use pure water, the condensation of present steam direct heating formation
Water directly in a kettle., thus reduces the consumption of pure water, and MBS resins per ton can reduce by 200 kilograms of pure water.In addition, by
Made in pure water in pure water device, pure water per ton will consume more than 2 tons of running water, while discharge is more than 1 ton
Waste water, so reducing pure water consumption has not only saved running water, and reduces energy consumption, water consume and the waste water during pure water processed
Discharge.
3rd, the reaction time is shortened:Due to using steam direct heating, the efficiency of heat conduction is improved, makes material quickly equal
Even heating, can reduce 1 more than hour per a batch of reaction time, be dropped to 4 hours from original 5 hours, save
The 20% of reaction unit energy expenditure.
4th, the kiss-coating skinning on reactor wall is avoided, conventional product per ton at least produces 20 kilograms of kiss-coating skinning solid waste
Thing, reduces the discharge of Industrial Solid waste.
In summary, a kind of energy-conserving and environment-protective new technology for producing MBS resins of the present invention, direct using the steam in reactor
Mode of heating replaces the chuck mode of heating outside original reactor, generates more preferable beneficial effect:Steam has been saved, has been reduced
The consumption of pure water, shorten the reaction time, it is to avoid the kiss-coating skinning on reactor wall, reduces the row of Industrial Solid waste
Put.
Claims (4)
1. a kind of energy-conserving and environment-protective technique for producing MBS resins, it is characterised in that:Using the steam direct heating mode in reactor
Material in polymerization reaction kettle is heated, i.e.,:Steam heater is set in polymerization reaction kettle;
The steam heater, including one cover from reactor and be passed through vertically in reactor by the perforate of kettle wall more nearby
Steam-heating pipe, in addition to an active adapter of the liftable being flexibly connected with steam-heating pipe lower end;The active adapter of liftable
Bottom is provided with curve bend;Some nozzles are provided with the inside of curve bend;
Curve bend equipped with nozzle is liftable, and steam is adjusted to material by lifting the curve bend equipped with nozzle
Different parts are heated;Reaction just starts, and when material in reactor is less, the bend pipe that will be equipped with nozzle is dropped under reactor
Heated in portion;Nozzle location is stepped up in course of reaction, it is remained in the middle part of material in reactor, to protect
Demonstrate,prove homogeneous heating;
Specific production process is as follows:Styrene-butadiene latex, methyl methacrylate, styrene and pure water are added to according to a certain percentage
In polymerization reaction kettle, emulsifying agent is added, appropriate initiator is added after agitated emulsification and carries out emulsion graft polymerization at a certain temperature
Polymerisation, steam heater is set using the above method in polymerization reaction kettle, straight by introducing the steam in reactor
Connect and reaction mass is heated;After polymerisation terminates, then through cohesion, centrifugation, dry, extruding pelletization, obtain MBS trees
Fat.
2. the energy-conserving and environment-protective technique of production MBS resins according to claim 1, it is characterised in that steam-heating pipe lower end
Provided with internal thread, the active adapter upper end of liftable be provided with external screw thread, liftable it is active adapter steam-heating pipe between by it is interior,
External screw thread is flexibly connected.
3. the energy-conserving and environment-protective technique of production MBS resins according to claim 1 or 2, it is characterised in that curve bend with can
The active adapter of lifting is fixedly connected.
4. the energy-conserving and environment-protective technique of production MBS resins according to claim 1 or 2, it is characterised in that the emulsion graft polymerization
Polymerisation, 65 DEG C of polymerization temperature, polymerization time 5h.
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CN105542050B (en) * | 2016-01-14 | 2018-11-27 | 中国石油集团东北炼化工程有限公司吉林设计院 | A kind of polymerization reaction initiation method |
CN108754954B (en) * | 2018-05-30 | 2023-12-29 | 江苏精明机械有限公司 | Regional superheated steam textile fabric drying and shaping machine and combination thereof |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3657391A (en) * | 1969-03-12 | 1972-04-18 | Borg Warner | Graft copolymers of styrene acrylonitrile and methyl acrylate onto diene polymers and blends thereof with vinyl chloride resins |
US3907928A (en) * | 1971-09-01 | 1975-09-23 | Japan Synthetic Rubber Co Ltd | Polyvinyl chloride resin composition |
CN201470378U (en) * | 2009-06-26 | 2010-05-19 | 浙江省长兴县中山化工有限公司 | Heating device on reaction kettle |
CN101875712A (en) * | 2009-04-30 | 2010-11-03 | 上海天坛助剂有限公司 | Production method of MBS (Methacrylate Butadiene Styrene) resin |
-
2015
- 2015-04-17 CN CN201510185168.9A patent/CN104744638B/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3657391A (en) * | 1969-03-12 | 1972-04-18 | Borg Warner | Graft copolymers of styrene acrylonitrile and methyl acrylate onto diene polymers and blends thereof with vinyl chloride resins |
US3907928A (en) * | 1971-09-01 | 1975-09-23 | Japan Synthetic Rubber Co Ltd | Polyvinyl chloride resin composition |
CN101875712A (en) * | 2009-04-30 | 2010-11-03 | 上海天坛助剂有限公司 | Production method of MBS (Methacrylate Butadiene Styrene) resin |
CN201470378U (en) * | 2009-06-26 | 2010-05-19 | 浙江省长兴县中山化工有限公司 | Heating device on reaction kettle |
Non-Patent Citations (1)
Title |
---|
MBS专利生产技术概况;赵静等;《聚氯乙烯》;20010130;第37-41页 * |
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Effective date of registration: 20220629 Address after: 448000 Jingmen high tech Zone, Jingmen City, Hubei Province No. 6, sunshine 1st Road, Duodao District Patentee after: Hubei Shangzhu Chemical Co.,Ltd. Address before: 201403 No. 9500 Puxing Road, Fengxian District, Shanghai Patentee before: SHANGHAI TIANTAN AUXILIARIES Co.,Ltd. |
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