CN206688681U - Add device before nucleating agent - Google Patents
Add device before nucleating agent Download PDFInfo
- Publication number
- CN206688681U CN206688681U CN201720304599.7U CN201720304599U CN206688681U CN 206688681 U CN206688681 U CN 206688681U CN 201720304599 U CN201720304599 U CN 201720304599U CN 206688681 U CN206688681 U CN 206688681U
- Authority
- CN
- China
- Prior art keywords
- nucleator
- pipeline
- catalyst
- feeding pipeline
- feed line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000002667 nucleating agent Substances 0.000 title abstract 7
- 239000003054 catalyst Substances 0.000 claims abstract description 40
- 239000000463 material Substances 0.000 claims abstract description 37
- 238000002360 preparation method Methods 0.000 claims abstract description 15
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 14
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims abstract description 14
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 claims abstract description 13
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 229920000098 polyolefin Polymers 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 7
- 229920000642 polymer Polymers 0.000 description 7
- 239000004743 Polypropylene Substances 0.000 description 5
- -1 polypropylene Polymers 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 229920001155 polypropylene Polymers 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 241000628997 Flos Species 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003426 co-catalyst Substances 0.000 description 1
- 238000010835 comparative analysis Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 238000007306 functionalization reaction Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000010094 polymer processing Methods 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Landscapes
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
Abstract
The utility model relates to an add device before nucleating agent, the in-kettle of specially adapted polyolefin product is toughened and is modified, mainly includes: the device comprises a catalyst preparation tank, wherein the bottom of the catalyst preparation tank is connected with a catalyst feeding pipeline, a nucleating agent preparation tank is used for preparing a nucleating agent, the bottom of the nucleating agent preparation tank is connected with a nucleating agent feeding pipeline, a polymerization reaction kettle is provided with a material feeding pipeline at the top, the pipe diameter of the catalyst feeding pipeline is smaller than that of the material feeding pipeline, the catalyst feeding pipeline needs to be inserted into the material feeding pipeline through a connecting valve arranged at the top of the material feeding pipeline, and the side wall of the material feeding pipeline is respectively connected with the nucleating agent feeding pipeline and a propylene feeding pipeline.
Description
Technical field
Adding set before a kind of nucleator is the utility model is related to, the kettle intrinsic toughening especially suitable for polyolefin products changes
Property.
Background technology
The domestic product being modified for needs by adding nucleator is making in polypropylene polymerization production line at present
Grain workshop section adds nucleator, although addition manner fluctuation is smaller after this, the characteristics of melting mixing technique fundamentally
Determine that nucleator disperses yardstick because being limited by processing conditions, nucleating effect reaches far away desirable level, simultaneously as nucleator
With the interface wet ability of polypropylene matrix difference and caused by nucleating effect is limited and melt-blending process can not be evaded core ask
Topic.In addition, for different resins matrix the polypropylene etc. of different melt index (HOPP and COPP), blending
Condition is even more larger difference be present, it is difficult to realizes the controllable scattered of nucleator, the power consumption of polymer processing brought therewith increases, cost increase
The problems such as also turn into high-performance PP prepare with scale bottleneck.And directly realize High performance polyolefin resin by polymerizeing in kettle
Preparation is the development trend of current and future polyolefine material technology of preparing.Polymerization has low cost, epipodium from process in kettle
The advantage of guarantor, from product structure controllability be polymer under the control of catalyst by small molecule to high molecular assembling, can
The customization of polyolefin structure and performance is realized, and is expected to realize that functionalization material disperses and Interface Control and polymeric matrix knot
Structure control agrees with, and maximumlly plays the effect of functional mass, thus be vistanex technology of preparing efficiently, low-carbon and green
The complete solution of color.But the addition of nucleator is directly carried out in kettle, is currently limited to pilot plant test research and interval
The report of method (disposably feeding intake), the maturation process technology for not being available for continuity method process units to use, its technological difficulties are
Pipeline connecting mode between catalyst, nucleator, charging propylene three, connection is improper easily to cause junction pipeline blockage,
Device is difficult to long-period stable operation.
Utility model content
The utility model provides adding set before a kind of nucleator, mainly includes：
Catalyst preparation tank, catalyst preparation pot bottom connection catalyst feed line；
Nucleator preparing tank, nucleator prepare pot bottom and connect into core agent charge line；
Polymerization reaction kettle, top are provided with material and add pipeline, and the caliber of catalyst feed line is less than material and adds pipeline
Caliber, catalyst feed line need to by be located at material add pipeline top connection valve insert material add pipeline in,
Material adds pipeline side wall and connects nucleator feeding line and propylene feed line respectively.
Adding set before nucleator disclosed in the utility model, it is characterised in that described catalyst feed line insert
The depth that material adds pipeline is 4-10cm.
Adding set before nucleator disclosed in the utility model, it is characterised in that described catalyst feed line insert
The depth that material adds pipeline is 5-8cm；
Adding set before nucleator disclosed in the utility model, it is characterised in that described nucleator feeding line and material
The access point for adding pipeline side wall is located at 3-6cm below connection valve interface.
Adding set before nucleator disclosed in the utility model, it is characterised in that described propylene feed line adds with material
The access point for entering pipeline side wall is located at below connection valve interface at 1-3cm.
Nucleator continuous feed is carried out by below scheme：
Catalyst for polymerization is prepared in catalyst preparation tank 1, and stirring is normally opened, catalyst by feeding line 3,
Under two groups of syringe pump alternating actions enter polymerization reaction kettle 5 on material add pipeline 6 in (a pumping material, another is pumped out
Material).Nucleator is prepared in preparing tank 2, and stirring is normally opened, can be added during experiment by hydrocarbon fat feed pot and nucleator
Mouth fills into nucleator, and nucleator is by feeding line 4, the thing entered under two groups of syringe pump alternating actions on polymerization reaction kettle 5
Material is added in pipeline 6, and the catalyst and nucleator added into material in pipeline 6 enters with the propylene in propylene feed line 8
Enter into the polymerization reaction kettle 5 of belt stirrer and carry out polymerisation, the polymer slurries of generation can cement-based powder material overflow outlet overflow
Polymerization reaction kettle 5 is flowed out, into next reaction member or enters polymer treatment link, exception, which occurs, directly to be passed through
Floss hole discharges reactor.
The utility model is by using two groups of preparing tanks (catalyst preparation tank 1, nucleator preparing tank 2)
Two groups of syringe pumps realize the continuous uninterrupted charging of nucleator and catalyst, and catalyst feed line 3 passes through connection
Valve 7 adds pipeline 6 with material and is connected, and catalyst feed line 3 is added in pipeline 6 in material certain insertion depth, close
The lower section of connection valve 7 access nucleator feeding line 4,7 another mouth of connection valve is connected to propylene feed line 8, such connected mode
Caused swirling force in pipeline 6 is added in material to disperse nucleator, prevent nucleator is directly mixed in from urging using propylene
Its polymerization is impacted in agent, while there is catalyst feed line 3 certain depth can make catalyst charge and third
Alkene feeds to form simultaneously stream mode, prevents catalyst adds in material caused by the larger swirling force of formation around the corner of propylene flow to manage
Stop in line 6, polymerisation form the problem of polymer causes pipeline to block.
Brief description of the drawings
Fig. 1 is adding set schematic diagram before the utility model nucleator.
Fig. 2 is the structural representation of connection valve.
Wherein, reference：
1- catalyst preparation tanks；2- nucleator preparing tanks；3- catalyst feed lines；4- nucleator feeding lines；5- gathers
Close reactor；6- materials add pipeline；7- connection valves；8- propylene feed lines.
Embodiment
Illustrate the course of work of the present utility model below in conjunction with the accompanying drawings.
Exemplified by being prepared in β polypropylenes, the catalytic component used is major catalyst ZN1114, co-catalyst triethyl group
Aluminium, electron donor methylcyclohexyl trimethoxy siloxane, the nucleator of preceding addition is beta crystal-type nucleater.
Major catalyst ZN1114 preparations are carried out in catalyst preparation tank 1 by required concentration, by required concentration in nucleator
Beta crystal-type nucleater preparation is carried out in preparing tank 2, mouth can be added by hydrocarbon fat at any time in course of reaction and nucleator charging aperture press than
Example supplement, catalyst and nucleator are injected by catalyst feed line 3, nucleator feeding line 4 in the presence of syringe pump
Material on polymerization reaction kettle 5 is added in pipeline 6, and catalyst, nucleator are by propylene feed line 8 by reaction raw materials propylene band
Enter in polymerization reaction kettle 5, carry out polymerisation, prepolymer overflow enters postorder reactor and carries out depth polymerization, obtains polymer.
Test continuous and steady operation two weeks, resulting polymers carried out analyzing test and the experiment with being not added with nucleator contrasts,
As a result as shown in table 1 below, from the experimental results, the beta crystal-type nucleater added online has to the impact strength of polymer substantially to be changed
Kind effect.
Nucleator is added before table 1 and is not added with the mechanical property comparative analysis of sample obtained by nucleator
Claims (5)
1. adding set before a kind of nucleator, it is characterised in that mainly include：
Catalyst preparation tank (1), catalyst preparation tank (1) the bottom connection catalyst feed line (3)；
Nucleator preparing tank (2), nucleator preparing tank (2) the bottom connection nucleator charge line (4)；
Polymerization reaction kettle (5), top are provided with material and add pipeline (6), and the caliber of the catalyst feed line (3) is less than described
Material adds the caliber of pipeline (6), and the catalyst feed line (3) need to add the top of pipeline (6) by being located at the material
The connection valve (7) in portion is inserted the material and added in pipeline (6), the material add pipeline (6) side wall connect respectively it is described into
Core agent feeding line (4) and propylene feed line (8).
2. adding set before nucleator according to claim 1, it is characterised in that the catalyst feed line (3) is inserted
The depth for entering the material addition pipeline (6) is 4-10cm.
3. adding set before nucleator according to claim 2, it is characterised in that the catalyst feed line (3) is inserted
The depth for entering the material addition pipeline (6) is 5-8cm.
4. adding set before nucleator according to claim 1, it is characterised in that the nucleator feeding line (4) with it is described
The access point that material adds pipeline (6) side wall is located at 3-6cm below the connection valve (7) interface.
5. adding set before nucleator according to claim 1, it is characterised in that the propylene feed line (8) and the thing
The access point that material adds pipeline (6) side wall is located at below connection valve (7) interface at 1-3cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720304599.7U CN206688681U (en) | 2017-03-27 | 2017-03-27 | Add device before nucleating agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720304599.7U CN206688681U (en) | 2017-03-27 | 2017-03-27 | Add device before nucleating agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206688681U true CN206688681U (en) | 2017-12-01 |
Family
ID=60444148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720304599.7U Active CN206688681U (en) | 2017-03-27 | 2017-03-27 | Add device before nucleating agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206688681U (en) |
-
2017
- 2017-03-27 CN CN201720304599.7U patent/CN206688681U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |