CN105693894A - Device and method for producing chlorinated polyvinyl chloride - Google Patents
Device and method for producing chlorinated polyvinyl chloride Download PDFInfo
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- CN105693894A CN105693894A CN201610260748.4A CN201610260748A CN105693894A CN 105693894 A CN105693894 A CN 105693894A CN 201610260748 A CN201610260748 A CN 201610260748A CN 105693894 A CN105693894 A CN 105693894A
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- fluidized
- polyvinyl chloride
- bed reactor
- chliorinated polyvinyl
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 239000004801 Chlorinated PVC Substances 0.000 title abstract description 5
- 229920000457 chlorinated polyvinyl chloride Polymers 0.000 title abstract description 5
- 238000006243 chemical reaction Methods 0.000 claims abstract description 80
- 238000000034 method Methods 0.000 claims abstract description 33
- 238000007599 discharging Methods 0.000 claims abstract description 17
- 239000007789 gas Substances 0.000 claims description 41
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 36
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 32
- 239000004800 polyvinyl chloride Substances 0.000 claims description 32
- 239000004744 fabric Substances 0.000 claims description 30
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 29
- 239000000460 chlorine Substances 0.000 claims description 28
- 229910052801 chlorine Inorganic materials 0.000 claims description 28
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 24
- 229910052757 nitrogen Inorganic materials 0.000 claims description 18
- 239000012530 fluid Substances 0.000 claims description 13
- 238000010521 absorption reaction Methods 0.000 claims description 12
- 239000003513 alkali Substances 0.000 claims description 12
- 239000007790 solid phase Substances 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 11
- 239000007792 gaseous phase Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 230000004044 response Effects 0.000 claims description 7
- 239000011521 glass Substances 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 3
- 239000008367 deionised water Substances 0.000 claims description 3
- 229910021641 deionized water Inorganic materials 0.000 claims description 3
- 230000008569 process Effects 0.000 abstract description 10
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 239000000047 product Substances 0.000 description 10
- 239000007787 solid Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 239000012071 phase Substances 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 5
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 5
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- 238000005660 chlorination reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 238000005243 fluidization Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000010532 solid phase synthesis reaction Methods 0.000 description 2
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 239000005297 pyrex Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000012265 solid product Substances 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- C08F2/00—Processes of polymerisation
- C08F2/01—Processes of polymerisation characterised by special features of the polymerisation apparatus used
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
The invention provides a device and method for producing chlorinated polyvinyl chloride. The device for producing chlorinated polyvinyl chloride comprises a fluidized bed reactor, a constant-temperature circulator and ultraviolet lamps. The fluidized bed reactor comprises an upper end closure, a feeding and discharging section, a fluidized reaction section and a lower end closure which are arranged in sequence from top to bottom, a first screen is arranged between the upper end closure and the feeding and discharging section, a second screen is arranged between the fluidized reaction section and the lower end closure, the upper end closure is provided with a gas outlet, the feeding and discharging section is provided with a feeding port and a discharging port, and the lower end closure is provided with a gas inlet. The constant-temperature circulator is arranged on the outer side of the fluidized reaction section. The ultraviolet lamps are arranged on the outer side of the fluidized bed reactor. The device is simple in structure, a reaction can be easily carried out, the technological process of production is short, tail gas can be easily treated, pollution is small, and energy consumption is low.
Description
Technical field
The present invention relates to chemical process and equipment technical field, particularly relate to a kind of device and method producing chliorinated polyvinyl chloride。
Background technology
Chliorinated polyvinyl chloride (CPVC) resin be polrvinyl chloride (PVC) chlorination modified further after product。The CPVC chemical proofing with excellence the same as Corvic, and also can fully keep this characteristic constant when high temperature, the thermal softening temperature of CPVC improves 20～40 DEG C than original Corvic。CPVC and polyolefin, ABS are different, have from fire extinguishing property, and it is few to be fuming, and oxygen index (OI) is big, has the flame resistance of excellence, has good adaptive as flame retardant plastics。CPVC is the same with Corvic, has more excellent electric insulating quality than most of plastics, has the adaptability as insulating material。CPVC is application development speed novel macromolecular material faster in recent years。
At present, the production method preparing CPVC mainly has solvent method, water phase suspension, gas solid method three kinds。Production technology is different, the application of CPVC also difference to some extent。Adopt the product that solvent method produces to be mainly used in senior anticorrosive coating and adhesive, adopt the product that gas solid method and water phase suspension produce to be mainly used in rigid plastics。
Solvent method is the main production method adopted before China, but is used for the restriction of the toxic solvent such as carbon tetrachloride, chlorobenzene by Montreal protocol, and the method is eliminated。
Water phase suspension is to produce CPVC commonly used method such as US5821304, US5981663, US6187868 etc. at present, it is that powdery polyvinyl chloride resin is suspended in water or in hydrogen chloride solution, after adding auxiliary agent, adopt two sections of chloridization process of low temperature (30～90 DEG C) and high temperature (90～130 DEG C)。Water phase suspension technique also has a large amount of organic solvent to participate in reaction, produces " three wastes " more, and equipment effective rate of utilization is relatively low, and last handling process is complicated, and cost is of a relatively high。Day by day increasing especially as CPVC demand, the etching problem that equipment is caused by a large amount of organic solvents is more and more sharp-pointed so that this technique is higher to the requirement of equipment, thus adding production cost。
Gas solid method is by PVC powder, is placed in fixing bed or fluid bed, logical chlorinated with chlorine under external energy causes。What US3532612 proposed produces CPVC with gas-solid phase fluidized bed process, adopts uviol lamp and initiator catalytic reaction, and reaction temperature is relatively low, it may be achieved the amplification of CPVC produces, but this technological process is complicated, there are no realizing industrialized report。Zhejiang University Fang Rui have employed self-rotary consersion unit and is applied to preparing chlorinated polyvinyl chloride by gas-solid phase method, investigate response time, reaction temperature, the logical impact on product chlorinity and molecular weight of product such as chlorine dose and stir speed (S.S.), and give the reaction process after optimization。Although this technique flow process is simple, pollutant emission is little, but difficulty is amplified in equipment industry, is not suitable for large-scale production。Tsing-Hua University Cheng Yi, Lu Wei et al. research adopts low temperature plasma method gas-solid to be combined to CPVC, introduction is all had in CN101649010B, CN101654493B, CN102199230B, CN102161718B, though low temperature plasma method can realize the quick air solid-phase chlorination of PVC, but the impact of CPVC product properties is still needed to further research by low temperature plasma, the method, still in the laboratory research stage, there is no industrial applications。Hebei University of Science and Technology king builds English et al. and discloses the devices and methods therefor CN101831021B of a kind of preparing chlorinated polyvinyl chloride by gas-solid phase method, this patent combines riser reactor and turbulent fluid bed reactor, whole response system structure is complicated, reaction mass needs to circulate in two reactors, it is more difficult to control uniformly。And course of reaction is decomposed into 2 steps, the wherein more difficult control of fast response process, it is difficult to heavy industrialization is applied。
Summary of the invention
The invention aims to solve the problems referred to above, it is provided that a kind of device and method producing chliorinated polyvinyl chloride, this apparatus structure is simple, and the technological process of production is short, and tail gas is easily processed, and pollutes little, and energy consumption is low。
In order to achieve the above object, the present invention provides a kind of device producing chliorinated polyvinyl chloride, including: fluidized-bed reactor, constant temperature circulator and uviol lamp, described fluidized-bed reactor includes the upper cover set gradually from top to bottom, input and output material section, fluidized reaction section and low head, the first screen cloth it is provided with between described upper cover and input and output material section, it is provided with the second screen cloth between described fluidized reaction section and low head, described upper cover is provided with gas outlet, described input and output material section is provided with charging aperture and discharging opening, described low head is provided with air inlet, described constant temperature circulator is located at outside described fluidized reaction section, described uviol lamp is located at outside described fluidized-bed reactor。
In one embodiment of the invention, described constant temperature circulator includes thermostat main body, chuck and the fluid being filled in chuck, described chuck is located at the outside of described fluidized reaction section, described thermostat main body and chuck by pipeline communication, and fluid forms closed circuit between chuck and thermostat main body。
In one embodiment of the invention, described fluid is deionized water。
In one embodiment of the invention, described fluidized-bed reactor adopts glass to make, and described chuck adopts glass to make。
In one embodiment of the invention, also include cloth envelop collector and alkali liquor absorption tower, described gas outlet and described discharging opening connect described cloth envelop collector respectively through pipeline, and described cloth envelop collector is provided with gaseous phase outlet and solid-phase outlet, and described gaseous phase outlet connects described alkali liquor absorption tower by pipeline。
In one embodiment of the invention, described uviol lamp takes the shape of the letter U。
In one embodiment of the invention, the quantity of described uviol lamp is several, and several uviol lamps are equally spaced in fluidized reaction section outside upright direction。
The present invention also provides for a kind of method that device adopted described in any of the above produces chliorinated polyvinyl chloride, comprise the following steps: add polrvinyl chloride from charging aperture toward fluidized-bed reactor, close charging aperture, open gas outlet, pass into nitrogen from air inlet toward fluidized-bed reactor；Polrvinyl chloride, after fluidized reaction section is fluidized by nitrogen, opens constant temperature circulator, and the temperature controlling constant temperature circulator is 50～90 DEG C；When the temperature of fluidized reaction section reaches 50～90 DEG C, opening uviol lamp, pass into chlorine from air inlet toward fluidized-bed reactor, chlorine generates chliorinated polyvinyl chloride with pvc response under the exciting of uviol lamp。
In one embodiment of the invention, the ultraviolet wavelength that described uviol lamp sends is 320～390nm。
In one embodiment of the invention, the particle diameter of polrvinyl chloride is 50～300 μm。
Compared with prior art, the technical program provides the benefit that:
Optical chlorinating reaction carries out in a fluidized bed reactor, gas-particle two-phase mix homogeneously, and gas-solid white heat is fast, and heat is by fluidizing gas and constant temperature circulator removal, so that reaction is smoothed out。Utilizing ultraviolet excitation chlorine in a fluidized bed reactor and realize optical chlorinating reaction, initial reaction temperature is relatively low, can effectively prevent bonding and the variable color of polrvinyl chloride, reduce energy expenditure, and equipment is simple to operate。Outside the fluidized reaction section of fluidized-bed reactor, in the vertical direction is provided with many U-shaped uviol lamps, uviol lamp equidistant placement, and irradiation under ultraviolet ray is abundant, improves optical chlorinating reaction efficiency。The tail gas produced in course of reaction is made up of chlorine, hydrogen chloride gas and nitrogen, and without other additives, aftertreatment technology is simple, substantially pollution-free。
Accompanying drawing explanation
Fig. 1 is the structural representation that the present invention produces the device of chliorinated polyvinyl chloride。
Detailed description of the invention
Below in conjunction with accompanying drawing, by specific embodiment, technical scheme is carried out clear, complete description。
Refer to shown in Fig. 1, the present invention provides a kind of device producing chliorinated polyvinyl chloride, including: fluidized-bed reactor 1, constant temperature circulator 2 and uviol lamp 3。Described fluidized-bed reactor 1 includes the upper cover 11, input and output material section 12, fluidized reaction section 13 and the low head 14 that set gradually from top to bottom。It is provided with the first screen cloth 15 between described upper cover 11 and input and output material section 12, between described fluidized reaction section 13 and low head 14, is provided with the second screen cloth 16。The guarantee polrvinyl chloride that arranges of the first screen cloth 15 and the second screen cloth 16 reacts in fluidized reaction section 13 and chlorine, and solid particle will not enter upper cover 11 and low head 14。Described upper cover 11 is provided with gas outlet 111, and gas can be discharged from this gas outlet 111。Described input and output material section 12 is provided with charging aperture 121 and discharging opening 122, is respectively used to put into solid material and discharge solid product, and charging aperture 121 is provided with closure, with closure, charging aperture 121 is blocked, to avoid raw material to discharge from charging aperture 121 after charging is complete。Described low head 14 is provided with air inlet 141, is used for passing into gas raw material。Described constant temperature circulator 2 is located at outside described fluidized reaction section 13 to control the temperature of fluidized reaction section 13, plays the effect of preheating in initial reaction stage, plays the effect of heat exchange cooling in course of reaction。Described uviol lamp 3 is located at outside described fluidized-bed reactor 1, and uviol lamp 3 sends ultraviolet to excite chlorine, makes chlorine be decomposed into chlorine radical, completes chain and causes, thus and polrvinyl chloride react generation chliorinated polyvinyl chloride。
The device of this production chliorinated polyvinyl chloride, using polrvinyl chloride and chlorine as raw material, utilizes ultraviolet excitation chlorine to realize the chlorination reaction of polrvinyl chloride, thus generating chliorinated polyvinyl chloride。Wherein, material pvc puts into fluidized-bed reactor 1 from charging aperture 121, and unstrpped gas passes into fluidized-bed reactor 1 from air inlet 141。Unstrpped gas can be pure chlorine, it is also possible to being the mixing gas of chlorine and nitrogen, nitrogen can as the fluidizing agent at fluidized-bed reaction initial stage。In initial reaction stage, first pass into nitrogen from air inlet 141, make polrvinyl chloride be fluidized in fluidized reaction section 13, in fluidisation state。Pass into chlorine from air inlet 141 more afterwards to react with polrvinyl chloride。In the present embodiment, air inlet 141 is connected to chlorine pipeline 101 and nitrogen pipeline 102, chlorine pipeline 101 and be equipped with valve 103 on nitrogen pipeline 102, but is not limited to this。Course of reaction is exothermic process, carrying out along with reaction, heat is continuously increased, if heat is removed not in time, the speed of reaction can be affected, the present invention utilizes described radiator valve to remove the heat of fluidized reaction section 13 in time, the reaction making polrvinyl chloride and chlorine maintains the state of a highly effective reaction, makes reaction to be smoothed out。This apparatus structure is simple, and reaction efficiency is high, and reaction end gas is the mixing gas of chlorine, hydrogen chloride gas and nitrogen, and component is simple, and aftertreatment technology is simple, substantially pollution-free。
Described constant temperature circulator 2 includes thermostat main body 21, chuck 22 and is filled in the fluid in chuck 22, described chuck 22 is located at the outside of described fluidized reaction section 13, described thermostat main body 21 and chuck 22 are by pipeline communication, and fluid forms closed circuit between chuck 22 and thermostat main body 21。Utilize the Circulation of fluid, can preheat in time fluidized reaction section 13 in initial reaction stage, and in course of reaction removing fluidized reaction section 13 in time, maintain fluidized reaction section 13 a suitable reaction temperature, it is ensured that the highly effective reaction of polrvinyl chloride and chlorine。Described fluid is deionized water, and heat-transfer effect is good, and low price is pollution-free。
Described fluidized-bed reactor 1 adopts glass to make, and Pyrex specifically can be adopted to make, but be not limited to this。Described chuck 22 adopts glass to make。Fluid in chuck 22 can transfer heat to fluidized reaction section 13 in time and in time the heat of fluidized reaction section 13 be removed。
The described device producing chliorinated polyvinyl chloride also includes cloth envelop collector 4 and alkali liquor absorption tower 5, so that product and tail gas to be processed。Described gas outlet 111 and described discharging opening 122 connect described cloth envelop collector 4 respectively through pipeline, and reacted tail gas passes into cloth envelop collector 4 from gas outlet 111, and reacted product chlorinated polrvinyl chloride passes into cloth envelop collector 4 from discharging opening 122。Pipeline between described gas outlet 111 and described cloth envelop collector 4 is provided with valve 103 to control being turned on and off of gas outlet 111。Pipeline between described discharging opening 122 and described cloth envelop collector 4 is provided with valve 103 and must be turned on and off to control discharging opening 122。Described cloth envelop collector 4 is provided with gaseous phase outlet 41 and solid-phase outlet 42, described gaseous phase outlet 41 connects described alkali liquor absorption tower 5 by pipeline, described gaseous phase outlet 41 is located at the top of cloth envelop collector 4, described solid-phase outlet 42 is located at the bottom of cloth envelop collector 4, and solid-phase outlet 42 is provided with valve 103 to control being turned on and off of solid-phase outlet 42。4 reacted product solid of cloth envelop collector and gas are separated, it is to avoid pressed powder enters exhaust treatment system, and pressed powder is discharged by solid-phase outlet 42, and namely end product chliorinated polyvinyl chloride is discharged by solid-phase outlet 42。The tail gas reacted then flows to alkali liquor absorption tower 5 from gaseous phase outlet 41, utilizing the chlorine in the alkali liquor absorption tail gas of alkali liquor absorption tower 5 and hydrogen chloride gas, and nitrogen therein directly empties after alkali liquor absorption tower 5, this vent gas treatment process is simple, easily operation, environmental pollution is little。
The described generally cylindrical body of fluidized-bed reactor 1, described uviol lamp 3 takes the shape of the letter U, and is sheathed on the outside of fluidized reaction section 13, then fluidized reaction section 13 can receive more ultraviolet, thus advantageously in the chlorination reaction of polrvinyl chloride。The quantity of described uviol lamp 3 is several, and several uviol lamps 3 are equally spaced in fluidized reaction section 13 outside upright direction, then ultraviolet can be more abundant to the photostimulation of chlorine, and reaction carries out more complete, improves optical chlorinating reaction efficiency。And the lug of uviol lamp 3 is positioned at the same side, it is simple to wiring。
The present invention also provides for a kind of method adopting devices discussed above to produce chliorinated polyvinyl chloride, comprise the following steps: add polrvinyl chloride from charging aperture 121 toward fluidized-bed reactor 1, closure is utilized to close charging aperture 121 after charging, open gas outlet 111, namely open the valve 103 on the pipeline between gas outlet 111 and described cloth envelop collector 4。Pass into nitrogen from air inlet 141 toward fluidized-bed reactor 1, then polrvinyl chloride is fluidized by nitrogen in fluidized reaction section 13, and in fluidisation state, and nitrogen empties after flowing through cloth envelop collector 4, alkali liquor absorption tower 5。Polrvinyl chloride is after fluidized reaction section 13 is fluidized by nitrogen, open constant temperature circulator 2, the temperature controlling constant temperature circulator 2 is 50～90 DEG C, constant temperature circulator 2 preheats to fluidized reaction section 13 in initial reaction stage, when fluidized reaction section 13 temperature reaches 50～90 DEG C, opening uviol lamp 3, the ultraviolet wavelength that uviol lamp 3 sends is 320～390nm, the ultraviolet stimulation effect of this wavelength period is best, and reaction can be more complete。Then passing into chlorine from air inlet 141 toward fluidized-bed reactor 1, chlorine generates chliorinated polyvinyl chloride with pvc response under the exciting of uviol lamp 3。Reaction end gas sequentially passes through emptying after cloth envelop collector 4 and alkali liquor absorption tower 5, the gas of emptying has removed chlorine and hydrogen chloride gas, only remaining nitrogen, it is to avoid to environment。Reaction is through after a period of time, after the chlorinity of chliorinated polyvinyl chloride reaches requirement, then can stop passing into chlorine, open the valve 103 that discharging opening 122 connects on pipeline, close gas outlet 111 and connect the valve 103 on pipeline, utilize pneumatic conveying mode that chliorinated polyvinyl chloride is expelled in cloth envelop collector 4。Utilize cloth envelop collector 4 that gas phase and the solid phase of product are easily separated, can stop after discharging opening 122 discharging passing into nitrogen and closing the valve 103 that discharging opening 122 connects on pipeline。Namely the valve 103 opening the solid-phase outlet 42 bottom cloth envelop collector 4 can be taken off chliorinated polyvinyl chloride。
In raw material, the particle diameter of polrvinyl chloride is 50～300 μm, stable reaction, it is easy to control, and raw material majority is in this size, it is easy to obtain。
The temperature of polrvinyl chloride and chlorine reaction is 50～90 DEG C, and the temperature of reaction is low, can effectively prevent bonding and the variable color of polrvinyl chloride, reduce energy expenditure。Pressure in fluidized reaction section 13 is 0.05～0.1MPa, and reaction pressure is little, and equipment requirements is relatively low。Response time is 60～300min, and the time is also comparatively short, and reaction efficiency is high。The method condition that the visible present invention produces chliorinated polyvinyl chloride is very simple, and course of reaction is easily controlled, such that it is able to effectively control cost。
Although the present invention is with preferred embodiment openly as above; but it is not for limiting the present invention; any those skilled in the art are without departing from the spirit and scope of the present invention; may be by the method for the disclosure above and technology contents and technical solution of the present invention is made possible variation and amendment; therefore; every content without departing from technical solution of the present invention; according to any simple modification, equivalent variations and modification that above example is made by the technical spirit of the present invention, belong to the protection domain of technical solution of the present invention。
Claims (10)
1. the device producing chliorinated polyvinyl chloride, it is characterized in that, including: fluidized-bed reactor, constant temperature circulator and uviol lamp, described fluidized-bed reactor includes the upper cover set gradually from top to bottom, input and output material section, fluidized reaction section and low head, the first screen cloth it is provided with between described upper cover and input and output material section, it is provided with the second screen cloth between described fluidized reaction section and low head, described upper cover is provided with gas outlet, described input and output material section is provided with charging aperture and discharging opening, described low head is provided with air inlet, described constant temperature circulator is located at outside described fluidized reaction section, described uviol lamp is located at outside described fluidized-bed reactor。
2. the device of production chliorinated polyvinyl chloride according to claim 1, it is characterized in that, described constant temperature circulator includes thermostat main body, chuck and the fluid being filled in chuck, described chuck is located at the outside of described fluidized reaction section, described thermostat main body and chuck are by pipeline communication, and fluid forms closed circuit between chuck and thermostat main body。
3. the device of production chliorinated polyvinyl chloride according to claim 2, it is characterised in that described fluid is deionized water。
4. the device of production chliorinated polyvinyl chloride according to claim 2, it is characterised in that described fluidized-bed reactor adopts glass to make, described chuck adopts glass to make。
5. the device of production chliorinated polyvinyl chloride according to claim 1, it is characterized in that, also include cloth envelop collector and alkali liquor absorption tower, described gas outlet and described discharging opening connect described cloth envelop collector respectively through pipeline, described cloth envelop collector is provided with gaseous phase outlet and solid-phase outlet, and described gaseous phase outlet connects described alkali liquor absorption tower by pipeline。
6. the device of production chliorinated polyvinyl chloride according to claim 1, it is characterised in that described uviol lamp takes the shape of the letter U。
7. the device of production chliorinated polyvinyl chloride according to claim 1, it is characterised in that the quantity of described uviol lamp is several, several uviol lamps are equally spaced in fluidized reaction section outside upright direction。
8. the method adopting described device production chliorinated polyvinyl chloride as arbitrary in right 1-7, it is characterised in that comprise the following steps:
Add polrvinyl chloride from charging aperture toward fluidized-bed reactor, close charging aperture, open gas outlet, pass into nitrogen from air inlet toward fluidized-bed reactor；Polrvinyl chloride, after fluidized reaction section is fluidized by nitrogen, opens constant temperature circulator, and the temperature controlling constant temperature circulator is 50～90 DEG C；When the temperature of fluidized reaction section reaches 50～90 DEG C, opening uviol lamp, pass into chlorine from air inlet toward fluidized-bed reactor, chlorine generates chliorinated polyvinyl chloride with pvc response under the exciting of uviol lamp。
9. the method for production chliorinated polyvinyl chloride according to claim 8, it is characterised in that the ultraviolet wavelength that described uviol lamp sends is 320～390nm。
10. the method for production chliorinated polyvinyl chloride according to claim 8, it is characterised in that the particle diameter of polrvinyl chloride is 50～300 μm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610260748.4A CN105693894B (en) | 2016-04-22 | 2016-04-22 | Produce the device and method of chliorinated polyvinyl chloride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610260748.4A CN105693894B (en) | 2016-04-22 | 2016-04-22 | Produce the device and method of chliorinated polyvinyl chloride |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3532612A (en) * | 1965-01-15 | 1970-10-06 | Pechiney Saint Gobain | Superchlorinated polyvinyl chlorides and methods of preparation |
| CN101831021A (en) * | 2010-05-10 | 2010-09-15 | 河北科技大学 | Device for preparing chlorinated polyvinyl chloride by gas-solid phase method and method thereof |
| CN102786610A (en) * | 2012-07-10 | 2012-11-21 | 苏州宝津塑业有限公司 | Method for synthesizing CPVC resin by gas-solid phase method |
| CN203916645U (en) * | 2014-07-08 | 2014-11-05 | 上海方纶新材料科技有限公司 | A kind of optical chlorinating reaction device |
| CN104971668A (en) * | 2015-07-02 | 2015-10-14 | 清华大学 | Apparatus and method for preparing chlorinated polyvinyl chloride through continuous gas-solid phase process |
-
2016
- 2016-04-22 CN CN201610260748.4A patent/CN105693894B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3532612A (en) * | 1965-01-15 | 1970-10-06 | Pechiney Saint Gobain | Superchlorinated polyvinyl chlorides and methods of preparation |
| CN101831021A (en) * | 2010-05-10 | 2010-09-15 | 河北科技大学 | Device for preparing chlorinated polyvinyl chloride by gas-solid phase method and method thereof |
| CN102786610A (en) * | 2012-07-10 | 2012-11-21 | 苏州宝津塑业有限公司 | Method for synthesizing CPVC resin by gas-solid phase method |
| CN203916645U (en) * | 2014-07-08 | 2014-11-05 | 上海方纶新材料科技有限公司 | A kind of optical chlorinating reaction device |
| CN104971668A (en) * | 2015-07-02 | 2015-10-14 | 清华大学 | Apparatus and method for preparing chlorinated polyvinyl chloride through continuous gas-solid phase process |
Non-Patent Citations (1)
| Title |
|---|
| 胡永强: "釜式光催化氯化生产氯化石蜡-52新工艺", 《氯碱工业》 * |
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Effective date of registration: 20181214 Address after: 310000 Linjiang High-tech Industrial Park, Dajiangdong Industrial Agglomeration Area, Hangzhou City, Zhejiang Province, No. 9936, Hongwu Road Patentee after: Hangzhou electrochemistry new materials Co., Ltd. Address before: 311200 Linjiang Industrial Park, Xiaoshan District, Hangzhou City, Zhejiang Province Patentee before: Hangzhou Electrochemical Group Co., Ltd. |
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