CN107141381A - The method that gas solid method multi component particle fluid bed prepares haloflex - Google Patents
The method that gas solid method multi component particle fluid bed prepares haloflex Download PDFInfo
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- CN107141381A CN107141381A CN201710344033.1A CN201710344033A CN107141381A CN 107141381 A CN107141381 A CN 107141381A CN 201710344033 A CN201710344033 A CN 201710344033A CN 107141381 A CN107141381 A CN 107141381A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F8/00—Chemical modification by after-treatment
- C08F8/18—Introducing halogen atoms or halogen-containing groups
- C08F8/20—Halogenation
- C08F8/22—Halogenation by reaction with free halogens
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
- B01J8/24—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00008—Controlling the process
- B01J2208/00017—Controlling the temperature
- B01J2208/00106—Controlling the temperature by indirect heat exchange
- B01J2208/00115—Controlling the temperature by indirect heat exchange with heat exchange elements inside the bed of solid particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00008—Controlling the process
- B01J2208/00017—Controlling the temperature
- B01J2208/00106—Controlling the temperature by indirect heat exchange
- B01J2208/00168—Controlling the temperature by indirect heat exchange with heat exchange elements outside the bed of solid particles
- B01J2208/00176—Controlling the temperature by indirect heat exchange with heat exchange elements outside the bed of solid particles outside the reactor
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- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
The invention provides the method that gas solid method multi component particle fluid bed prepares haloflex, belong to chemical materials preparation technology field.This method is in using fluidized-bed reactor, polyethylene particle and the hybrid particles of inert particle are fluidized jointly, the chlorination reaction of polyethylene particle is realized by controlling reaction temperature and time, reacted haloflex can be with inert particle by isolated haloflex product, and the inert particle separated may be reused.In the present invention, the electrostatic problem occurred in polyethylene fluid mapper process can be improved by adding inert particle, and effectively dilute the heat of reaction of chlorination process, it is to avoid polyethylene etc. is high polymer cemented.The invention enhances the stability and controllability that gas solid method prepares haloflex process, can effectively improve the product quality of haloflex.
Description
Technical field
The present invention relates to technical field of chemical material preparation, in particular to gas solid method multi component particle fluid bed
The method for preparing haloflex, belongs to a kind of production technology of high polymer material in chlorine industry downstream.
Background technology
Haloflex (CPE) is polyethylene through the modified high-molecular elastomer product obtained by further chlorination.CPE points
The chlorine atom of random distribution containing polarized in subchain, and the linear saturation of molecular structure, make it have good elastic, flexible
Property, heat resistance, anti-flammability and compatibility.Chlorinity is mainly used as PVC Polymer materials in 35-40% or so CPE
Modifier, and new elastomeric material；Meanwhile, the CPE of more low chlorine content may be utilized in fabricating various moldings, extrusion molding and note
Mould product；And the CPE of high chlorinity can prepare the product such as fire resisting and chemical property stable nonpoisonous adhesive, paint, glue.
The current chlorine industry downstream industry of China can not dissolve accessory substance chlorine completely, thus cause the production of " with N-Serve alkali "
Industry general layout.The chlorination modified of high polymer can consume a large amount of remaining chlorine, and CPE per ton production can consume 0.7-0.8 tons of liquid
Chlorine, while business CPE price is far above material polyethylene, process has higher economic value added.
CPE production method includes solvent method, suspension method and gas solid method.Solvent method be difficult to recycle because of solvent and
Environmental problem has been eliminated.Suspension method is in polyethylene powders suspension aqueous phase or hydrochloric acid phase, will to add sweller, antitack agent and draw
Agent etc. is sent out, pressurization under agitation is passed through chlorine and carries out chlorination reaction, and its technical maturity, product quality is stable, is that current CPE is most main
The production method wanted.However, suspesion process is present, wastewater discharge is big, product last handling process is complicated, reactor corrosion is tight
The shortcomings of weight.Gas solid method be by polyethylene particle directly and chlorine haptoreaction, the method reacts in the dry state, no waste water
Discharge, product post processing is simple, and production cost is low, but there are problems that electrostatic bonding and reaction heat export, causes chlorination
Process is not sufficiently stable, and scale amplification is difficult.
It is the important method that gas solid method prepares CPE that chlorination reaction is carried out in fluid bed, but in polyethylene fluid mapper process
There is accumulation of static electricity, the problems such as particle is easily reunited, and chlorination reaction is strongly exothermic process, easily causes bed hot-spot,
Cause softening and the bonding of high polymer.
The research for improving fluid bed cohesion ethene fluidisation is long-standing, currently used mainly control fluidized-bed reaction
Electrostatic level in device, or the extra method for adding anti-static material.For example, patent CN101670254A discloses one kind
The method for reducing electrostatic level in fluidized bed reactor, this method on-line monitoring and analysis fluidized-bed electrostatic level, and adjusted with this
The superficial gas velocity of different zones is saved to reduce electrostatic level.But requirement of this method to equipment is higher, and superficial gas velocity
Change easily make the fluctuation of service of fluid bed.Patent CN103894118A discloses a kind of utilization ion wind and eliminates electrostatic
Method, this method is also required to carry out online electrostatic detection and monitoring to fluid bed, while ion wind used needs to set using high pressure
It is standby.
Meanwhile, patent US2928819A discloses a kind of HDPE fluid beds gas solid method chlorination, and it uses inorganic metal salt
It is used as anti-static material；In fluid bed heat facture chlorination HDPE disclosed in patent US3887533A, calcium stearate etc. is employed
It is used as anti-static material；The method that patent GB1406728 discloses fluid bed gas solid-phase chlorination HDPE, it uses SiO2As anti-
Electrostatic material.However, in these methods, selected anti-static material is both needed to be filled in polyethylene particle, and addition is 0.5
~4% or so, it is difficult to say that CPE is isolated after chlorination reaction；Meanwhile, the antitack agent of residual in the product can also influence CPE
Condition and performance.
In view of this, it is special to propose the present invention.
The content of the invention
It is an object of the invention to provide a kind of method that gas solid method multi component particle fluid bed prepares haloflex,
For improving the electrostatic problem in polyethylene fluid mapper process, while the effectively thermal discharge of dispersion polyethylene particle and diluting reaction,
The too fast bonding caused of reaction is avoided, strengthens the stability and controllability of chlorination process, the product quality of haloflex is improved.
In order to realize the above-mentioned purpose of the present invention, spy uses following technical scheme：
A kind of method that gas solid method multi component particle fluid bed prepares haloflex, methods described includes following step
Suddenly：
Polyethylene particle and the hybrid particles of inert particle are added in gas-solid phase fluidized-bed reactor, is passed through containing chlorine
Mixed gas fluidize hybrid particles, then carry out chlorination reaction；
Reaction gained haloflex is separated with inert particle, and is reclaimed and/or is post-processed respectively.
Optionally, in the present invention, the polyethylene is high density polyethylene (HDPE) and/or low density polyethylene (LDPE)；
It is preferred that, the polyethylene is high density polyethylene (HDPE)；
It is furthermore preferred that the particle diameter distribution of the high density polyethylene (HDPE) is 100~300 μm, density is 0.94~0.96g/
cm3。
Optionally, in the present invention, the particle diameter distribution of the inert particle is 200~500 μm, and density is 1.5~7.0g/
cm3；
It is preferred that, the inert particle is corroded for heat-resisting, acid gas, and is notheated and is bonded in chlorination reaction
Material granule；
It is furthermore preferred that the inert particle is bead, alumina bead, oxidation magnesium globule, zirconium oxide bead, or silica
One or more mixtures in pearl.
Optionally, in the present invention, the volume of the inert particle accounts for the 5~75% of whole fluid bed volume.
Optionally, in the present invention, in the mixed gas containing chlorine, the content of chlorine is 0~70%；
It is preferred that, the content of chlorine is 10~40%；
It is furthermore preferred that in the mixed gas containing chlorine, content≤100ppm of oxygen；Water content≤50ppm.
Optionally, in the present invention, the temperature of chlorination reaction is 20~140 DEG C, and the reaction time is 1~10h；
It is preferred that, the temperature of chlorination reaction is 60~130 DEG C, and the reaction time is 2~8h.
Optionally, in the present invention, the apparent fluidizing gas velocity of the gas-solid phase fluidized-bed reactor is 0.10~1.00m/s；
It is preferred that, the superficial gas velocity of gas-solid phase fluidized-bed reactor is 0.20~0.80m/s；
It is furthermore preferred that the superficial gas velocity of gas-solid phase fluidized-bed reactor is 0.40~0.70m/s.
Optionally, in the present invention, the chlorinity of product chlorinated polyethylene is 35~45wt%.
Optionally, in the present invention, heat-exchange system is additionally provided with the gas-solid phase fluidized-bed reactor；
Wherein, the heat-exchange system is arranged at the inside of gas-solid phase fluidized-bed reactor, or is arranged at gas-solid and mutually fluidizes
The outside of bed reactor.
Meanwhile, the present invention is also provided in a kind of preparation method of high polymer material, the preparation method, first according to the present invention
Methods described prepares haloflex, then prepares high polymer material using obtained haloflex as raw material.
Compared with prior art, beneficial effects of the present invention are：
(1) multi component particle fluidisation effectively improves electrostatic problem in polyethylene fluid mapper process, and hybrid particles can be
Stabilization fluid, it is to avoid particle agglomeration caused by electrostatic, improves the stability of chlorination process；
(2) polyethylene particle that inert particle has effectively been disperseed in bed, inert particle dress is adjusted according to product requirement
Enter amount, the heat of diluting reaction that can be different degrees of, it is to avoid while particle aggregation is bonded, improve chlorination process temperature
Controllability；
(3) multi component particle fluidisation can be carried out in common fluid bed, it is not necessary to carry out the measures such as electrostatic detection, if
It is standby simple to operation；
(4) inert particle can be realized according to the difference of particle diameter and density with haloflex product and is kept completely separate, and obtain pure
Net haloflex product, does not interfere with its condition and processing characteristics；
(5) inert particle has the performances such as good wearability, heat resistance and acid gas corrosion, can be repeatedly
Use.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described.
Fig. 1 is the method that a kind of gas solid method multi component particle fluid bed provided by the present invention prepares haloflex
Schematic flow sheet；
Wherein, 1- fluidized-bed reactors；2- charge doors；3- bottoms material outlet pipeline；4- heat-exchange systems；5- high density is gathered
Ethene particle；6- inert particles；7- fluidized-bed reactor distributors；8- gas vents；9- cyclone separators；10- pipelines；11-
Pipeline；12- pipelines；13- gas lines；14- pipelines.
Embodiment
Haloflex preparation method provided by the present invention, is a kind of reaction of use gas-solid phase multi component particle fluidisation
Preparation method, specific method step of the present invention refers to as follows：
First, it is to add polyethylene particle and the hybrid particles of inert particle in fluidized-bed reactor；
In this step, and the use that the particle diameter of polyethylene particle, density have the inert particle of notable difference is of the invention
One of key, the addition of inert particle can carry out polyethylene particle effectively to disperse and dilute, this can not only improve poly-
Electrostatic problem of the ethene particle in fluid mapper process, improves the stability of further chlorination reaction；It is also beneficial to chlorination simultaneously anti-
Effective diverging of heat, realizes the controllability of chlorination reaction temperature, and avoid in course of reaction due to local temperature produced by answering
The aggregation of polyethylene particle caused by too high is bonded.
Then, it is passed through the mixed gas containing chlorine so that hybrid particles are fluidized, and then carry out chlorination reaction；
It is preferred that, in this step, mixed gas used is the mixed gas that is made up of diluent gas and chlorine, can be with
Further the content of chlorine is adjusted in the range of 0~70% as needed；Wherein, the diluent gas is preferably
It is not involved in the gas of reaction；It is furthermore preferred that the diluent gas is nitrogen；
, it is necessary to which the solid particle allowed in reactor reaches fluidized state from inactive state in the starting stage, in this mistake
The concentration of chlorine in control mixed gas is needed in journey, and the preferred concentration control by chlorine is (that is, now used 0 or so
Mixed gas is actually only made up of nitrogen), so particle can be avoided to occur chlorination reaction before fluidized state is reached and lead
Cause hot-spot；
Solid particle is reached after fluidized state, it is necessary to regulate and control to reaction time and temperature in reactor；Simultaneously as
Need to carry out the chlorination reaction of polyethylene and chlorine, thus in mixed gas used in this stage chlorine concentration ＞ 0, control preferably
The concentration control of preparing chlorine gas is 5~70%, and the concentration of preferred chlorine is controlled 10~40%；
It is further preferred that in this stage, in reaction temperature and mixed gas, the concentration of chlorine is over time gradually
Lifting；Polyethylene particle obtains haloflex particle after this stage of reaction chlorination reaction.
Finally, haloflex particle and inert particle are separated, and is reclaimed and/or post-processed respectively；
Due in reacted hybrid particles, the particle diameter distribution of product chlorinated polyethylene is at 100-300 μm, and density is<
1.5g/cm3, and the particle diameter distribution of inert particle, at 200~500 μm, density range is in 1.5~7.0g/cm3In the presence of certain difference
It is different, it is thus possible to be efficiently separated the two；Meanwhile, pass through the regulation and control to temperature in course of reaction and effective hair of heat
Dissipate, so that polyethylene/haloflex bonding during the course of the reaction and the cladding to inert particle are it also avoid, thus this
It is pure product to invent separating obtained haloflex, and condition and processing characteristics are not affected.
Separating obtained haloflex enters to be handled in subsequent cell；And after separating obtained inert particle can be reclaimed
Reuse, and mixed again as raw material with polyethylene particle, fluidized and chlorination reaction.
Further, can also exchange heat system in the internal or external setting of gas-solid phase fluidized-bed reactor used in the present invention
System, so as to more effectively be controlled chlorination reaction temperature.
By the addition of inert particle, and adjustment to chlorine gas concentration in reaction temperature, time, mixed gas and/or
Control so that 35~45wt% can be reached as chlorinity in the haloflex obtained by the inventive method.
Obtained haloflex can be further used in the preparation of rubber Polymer material as raw material, for example
After can haloflex be mixed with auxiliary agent, high polymer material is prepared through mixing；Or can will be chlorinated polyethylene modified after,
High polymer material is prepared after mixing, kneading with auxiliary agent；Can also be by haloflex or modified haloflex and its
After his high polymer material mixing, auxiliary agent is added, and mixing prepares high polymer material；
Used auxiliary agent includes vulcanizing agent, reinforcing agent, stabilizer, age resistor and plasticizer etc.；And can be with chlorination
Polyethylene rubber mixing, the high polymer material kneaded are including NR, SBR, NBR, CSM, CR, EPDM etc..
The method provided below by accompanying drawing the present invention is further elaborated with, but does not therefore limit this hair
It is bright, many equipment, such as pump, compressor, valve are eliminated in figure.
Fig. 1 prepares the stream of the method for haloflex for a kind of gas solid method multi component particle fluid bed that the present invention is provided
Journey schematic diagram.Charge door 2 and gas vent 8 are arranged at the top of fluidized-bed reactor 1, and material outlet spool 3 and air inlet 12 are arranged at bottom.
Fluidized-bed reactor 1 is provided with for adjusting the heat-exchange system 4 of reaction temperature, and heat-exchange system 4 can be with according to the size of reactor
It is arranged on inside fluidized-bed reactor 1, can also be arranged on outside fluidized-bed reactor 1.
A certain proportion of high density polyethylene (HDPE) particle 5 and the blending ingredients of inert particle 6 are disposably added from charge door 2
Grain, the valve closed on reactor lower part material outlet pipeline 3, allows solid accumulation on fluidized-bed reactor distributor 7, and reach
To certain height.
Chlorine gas concentration in gaseous mixture (chlorine gas concentration can adjust in gaseous mixture) comprising finite concentration chlorine is adjusted to 0
Afterwards, gaseous mixture is passed sequentially through into gas line 13 and pipeline 12 enters fluidized-bed reactor 1, gaseous mixture to be deposited in distributor
It is grain fluidized on 7.Gas carries a small amount of solid particle and enters cyclonic separation from fluidized-bed reactor upper gas outlet line 8
Gas solid separation is carried out in device 9, the solid particle separated is collected by pipeline 10, gas part passes through pipeline 11 and pipeline 13
Gas mixing after fluidized-bed reactor 1 is returned to by pipeline 12, exhaust gas recovery system is partly entered by pipeline 14.
The reaction temperature of the temperature to 20~140 DEG C of fluidized-bed reactor 1 is adjusted, regulation chlorine gas concentration is to needed for reacting
Concentration, triggers chlorination reaction.Chlorine gas concentration in the temperature and blender in fluidized-bed reactor is gradually adjusted, by 1~10
After the reaction of hour, the chlorinity of chliorinated polyvinyl chloride reaches 35%~45% in fluidized-bed reactor 1, now reduces fluid bed
The temperature of reactor 1 simultaneously opens the valve on bottom material outlet pipeline 3, and it is anti-that the hybrid particles for adsorbing chlorine are removed into fluid bed
Device 1 is answered, follow-up product processing system is delivered to, the separation of hybrid particles is completed, respectively obtains haloflex
(CPE) the high density polyethylene (HDPE) particle 5 of product and inert particle 6, inert particle 6 and next batch is mixed, again
Into production procedure.
The method that the following examples will be provided the present invention, is further described, but does not therefore limit this
Invention.
Embodiment 1：
In internal diameter 100mm, the fluidized-bed reactor of ratio of height to diameter 4, heat-exchange system is set to the chuck for being close to reactor outer wall
Formula exchanges heat.
The hybrid particles of bead and high density polyethylene (HDPE) particle are added according to 70% loading, wherein, bead is close
Spend for 2.8g/cm3, size distribution is at 350-500 μm.
Using nitrogen as diluent gas, chlorine gas concentration is 10%, the chlorination reaction 30min at 60 DEG C；Improve chlorine dense
Degree is to 20%, the chlorination reaction 1h at 80 DEG C；Chlorine gas concentration is improved to 40%, temperature has obtained chlorinity to 125 DEG C of reaction 3h
35% haloflex.
Embodiment 2：
Using racetrack fluidized-bed reactor, changed between two straight lines between 100mm, two arc-shaped sides apart from 600mm
Hot systems are set to the jacket type heat exchange for being close to reactor outer wall.
The hybrid particles of zirconia particles and high density polyethylene (HDPE) particle are added according to 20% loading, wherein, oxidation
Zirconium granular pile density is 6.7g/cm3, size distribution is at 200-350 μm；
Using nitrogen as diluent gas, chlorine gas concentration is 10%, the chlorination reaction 30min at 50 DEG C；Improve temperature extremely
60 DEG C, chlorination reaction 1h；Chlorine gas concentration is improved to 15%, the chlorination reaction 2h at 80 DEG C；Chlorine gas concentration is improved to 30%,
Chlorination reaction 1h at 100 DEG C；Chlorine gas concentration is improved to 50%, the chlorination reaction 1h at 115 DEG C；Chlorine gas concentration is improved to 60%,
The chlorination reaction 2h at 130 DEG C, has obtained the haloflex of chlorinity 42%.
Embodiment 3：
Using internal diameter 600mm, the fluidized-bed reactor of ratio of height to diameter 3, reactor is interior to set shell and tube heat-exchange system.
The hybrid particles of inert particle and high density polyethylene (HDPE) particle are added according to 40% loading.Wherein, inertia
Grain is bead, silicon oxide particle, the mixing particle of zirconia particles, and each component particles account for the 1/3 of inert particle cumulative volume,
Inertia hybrid particles heap density 5.0g/cm3Left and right, size distribution is at 300-500 μm.
Using nitrogen as diluent gas, chlorine gas concentration is 10%, and monobutyltin trichloride reacts 1h at 60 DEG C；Improve chlorine dense
Degree is to 25%, the chlorination reaction 1.5h at 80 DEG C；Chlorine gas concentration is improved to 35%, the chlorination reaction 1h at 105 DEG C；Improve chlorine
Concentration is to 50%, and the chlorination reaction 2h at 130 DEG C has obtained the haloflex of chlorinity 40%.
Although illustrate and describing the present invention with specific embodiment, but it will be appreciated that without departing substantially from the present invention's
Many other changes and modification can be made in the case of spirit and scope.It is, therefore, intended that in the following claims
Including belonging to all such changes and modifications in the scope of the invention.
Claims (10)
1. a kind of method that gas solid method multi component particle fluid bed prepares haloflex, it is characterised in that methods described bag
Include following steps：
Polyethylene particle and the hybrid particles of inert particle are added in gas-solid phase fluidized-bed reactor, is passed through mixed containing chlorine
Closing gas fluidizes hybrid particles, then carries out chlorination reaction；
Reaction gained haloflex is separated with inert particle, and is reclaimed and/or is post-processed respectively.
2. according to the method described in claim 1, it is characterised in that the polyethylene is high density polyethylene (HDPE) and/or low-density
Polyethylene；
It is preferred that, the polyethylene is high density polyethylene (HDPE)；
It is furthermore preferred that the particle diameter distribution of the high density polyethylene (HDPE) is 100~300 μm, density is 0.94~0.96g/cm3。
3. according to the method described in claim 1, it is characterised in that the particle diameter distribution of the inert particle is 200~500 μm,
Density is 1.5~7.0g/cm3；
It is preferred that, the inert particle is corroded for heat-resisting, acid gas, and the material for being notheated and bonding in chlorination reaction
Expect particle；
It is furthermore preferred that the inert particle is in bead, alumina bead, magnesia, zirconium oxide bead, or silica beads
One or more mixtures.
4. according to the method described in claim 1, it is characterised in that the volume of the inert particle accounts for whole fluid bed volume
5~75%.
5. according to the method described in claim 1, it is characterised in that in the mixed gas containing chlorine, the content of chlorine
For 0~70%；
It is preferred that, the content of chlorine is 10~40%；
It is furthermore preferred that in the mixed gas containing chlorine, content≤100ppm of oxygen；Water content≤50ppm.
6. according to the method described in claim 1, it is characterised in that the temperature of chlorination reaction is 20~140 DEG C, the reaction time is
1~10h；
It is preferred that, the temperature of chlorination reaction is 60~130 DEG C, and the reaction time is 2~8h.
7. according to the method described in claim 1, it is characterised in that the apparent fluidizing gas velocity of the gas-solid phase fluidized-bed reactor
For 0.10~1.00m/s；
It is preferred that, the superficial gas velocity of gas-solid phase fluidized-bed reactor is 0.20~0.80m/s；
It is furthermore preferred that the superficial gas velocity of gas-solid phase fluidized-bed reactor is 0.40~0.70m/s.
8. according to the method described in claim 1, it is characterised in that the chlorinity of product chlorinated polyethylene is 35~45wt%.
9. according to the method described in claim 1, it is characterised in that be additionally provided with heat exchange in the gas-solid phase fluidized-bed reactor
System；
Wherein, the heat-exchange system is arranged at the inside of gas-solid phase fluidized-bed reactor, or to be arranged at gas-solid phase fluid bed anti-
Answer the outside of device.
10. a kind of preparation method of high polymer material, it is characterised in that in the preparation method, first according in claim 1-9
Any one methods described prepares haloflex, then prepares high polymer material using obtained haloflex as raw material.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108752504A (en) * | 2018-05-29 | 2018-11-06 | 潍坊硕邑化学有限公司 | A kind of water-saving environment amenable production of chlorinated polyethylene method |
| CN109210870A (en) * | 2018-09-06 | 2019-01-15 | 浙江工业大学 | A kind of back-shaped inert particles fluidized bed drying equipment and its drying means |
| CN109580716A (en) * | 2018-11-23 | 2019-04-05 | 浙江大学 | The recognition methods of recirculating fluidized bed raising section gas-solid flow pattern based on electrostatic detection |
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| CN108752504A (en) * | 2018-05-29 | 2018-11-06 | 潍坊硕邑化学有限公司 | A kind of water-saving environment amenable production of chlorinated polyethylene method |
| CN109210870A (en) * | 2018-09-06 | 2019-01-15 | 浙江工业大学 | A kind of back-shaped inert particles fluidized bed drying equipment and its drying means |
| CN109210870B (en) * | 2018-09-06 | 2023-11-28 | 浙江工业大学 | Drying equipment and drying method for annular inert particle fluidized bed |
| CN109580716A (en) * | 2018-11-23 | 2019-04-05 | 浙江大学 | The recognition methods of recirculating fluidized bed raising section gas-solid flow pattern based on electrostatic detection |
| CN109580716B (en) * | 2018-11-23 | 2020-10-30 | 浙江大学 | Method for identifying gas-solid flow pattern of lifting section of circulating fluidized bed based on electrostatic detection |
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