CN214076650U - Production equipment of neodymium rare earth rubber with adjustable Mooney viscosity - Google Patents
Production equipment of neodymium rare earth rubber with adjustable Mooney viscosity Download PDFInfo
- Publication number
- CN214076650U CN214076650U CN202022977199.7U CN202022977199U CN214076650U CN 214076650 U CN214076650 U CN 214076650U CN 202022977199 U CN202022977199 U CN 202022977199U CN 214076650 U CN214076650 U CN 214076650U
- Authority
- CN
- China
- Prior art keywords
- rare earth
- mooney viscosity
- adjustable
- neodymium
- channel
- 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.)
- Active
Links
Images
Abstract
The utility model belongs to the chemical process field relates to an adjustable mooney viscosity's neodymium system rare earth rubber's production facility, including the polymeric kettle, this polymeric kettle connects the raw materials feedstock channel who is used for inputing butadiene and is used for inputing the catalyst feedstock channel of quaternary ageing liquid, still including the stabilizer solution feedstock channel who is used for inputing the stabilizer solution, this stabilizer solution feedstock channel is connected with the polymeric kettle through the butyl oil mixing channel jointly with raw materials feedstock channel, the polymeric kettle still is connected with the regulator feedstock channel who is used for inputing the quality control agent. Through the utility model provides an equipment has increased stabilizer solution feedstock channel and regulator feedstock channel and has inputed stabilizer and quality control agent for polymerization, can improve polymerization efficiency more effectively, and production quality is controlled fast more conveniently, suitable long-time industrialization continuous production, can also satisfy different customers to the different demands of rubber mooney viscosity.
Description
Technical Field
The utility model belongs to the field of chemical process, a production facility of rubber is related to, especially relate to a production facility of neodymium system rare earth rubber of adjustable mooney viscosity.
Background
Compared with nickel-based butadiene rubber, the rare earth butadiene rubber has the advantages of high strength, low heat generation, good wet and skid resistance, low rolling resistance and the like. The quality and performance of the tire can be greatly improved by using the rubber as a raw material to manufacture the tire. The rare earth butadiene rubber is polybutadiene rubber with high cis-1, 4-structure content, which is prepared by adopting rare earth neodymium catalyst to initiate butadiene polymerization. It has regular molecular chain structure and high relative molecular weight. In the polymerization, some manufacturers use different catalysts to achieve the reaction.
For example, Chinese utility model publication No. CN103951776B discloses a catalyst feeding method in polymerization of neodymium polybutadiene rubber, comprising the steps of (1) mixing mixed catalysts, namely, aluminum sesquiethyl chloride, diisobutylaluminum hydride and neodymium neodecanoate according to a certain proportion, and carrying out ternary aging by a static mixer, wherein the aging time is 25-35min, and the temperature is 25-35 ℃; (2) the aged mixed catalyst and butyl oil enter a premixing kettle together for buffering and then enter a polymerization kettle for polymerization reaction, the pressure of the polymerization kettle is 0.35-0.45MPa, and the temperature of the first polymerization kettle is 60-75 ℃; (3) meanwhile, part of diisobutyl aluminum hydride is directly added from the middle lower part of the premixing kettle without aging and enters a polymerization kettle together with the materials in the step (2) for polymerization reaction to produce the polybutadiene rubber. However, in the technical scheme, part of diisobutylaluminum hydride, the catalyst and the butyl oil enter the premixing kettle to be buffered and then enter the polymerization kettle to participate in the polymerization reaction, so that the activity of the catalyst is influenced and the polymerization reaction is not facilitated.
For another example, chinese utility model patent application with publication No. CN111333761A discloses a catalyst technology for preparing rare earth butadiene rubber and a preparation method thereof, wherein the catalyst component for preparing rare earth butadiene rubber comprises organic rare earth compound, co-often diolefin, organic boron salt, alkyl aluminum compound, and molecular weight regulator; the molar ratio of the organic rare earth compound, the co-diene, the organic boron salt, the alkyl aluminum compound and the molecular weight regulator is 5-20: 10-50: 1-5: 10-30: 30-50. The utility model provides a preparation tombarthite butadiene rubber's catalyst and preparation method adds molecular weight regulator and ageing before adding the alkylaluminium compound and can form homogeneous phase, the good catalytic system of mobility, and the catalyst structure is clear and definite simultaneously, easily synthesizes, and catalytic system activity is high, and the quantity is few, and reaction condition is mild, can effectively improve tombarthite butadiene rubber's monomer conversion rate. In this solution, the molecular weight regulator is added and aged before the addition of the alkylaluminum compound, this aging step resulting in a slow regulation speed.
For another example, chinese utility model patent publication No. CN 107522807B discloses a method for preparing a catalyst for preparing rare earth butadiene rubber, comprising the steps of: under the protection of nitrogen, sequentially adding a solution of a rare earth phosphate compound, diene and alkyl aluminum hydride into a dried catalyst aging bottle, aging for 10-30 minutes at the temperature of 0-60 ℃, then adding an organic chloride, aging for 5-20 minutes at the temperature of 0-60 ℃, forming a homogeneous transparent solution, then adding alkyl aluminum, and aging for 1-30 minutes at the temperature of 0-60 ℃ to obtain the catalyst for preparing rare earth butadiene rubber. In the technical scheme, after the aging liquid is aged twice, alkyl aluminum is added into the aging liquid, and the aging is carried out again, wherein the Mooney value of the rare earth butadiene rubber prepared by the method is 55-100. The mode is slower in adjusting Mooney property in industrial production due to three times of aging, and is not beneficial to quickly adjusting the core quality index of rubber in the production process.
Disclosure of Invention
The present application aims to solve the above problems and provide a production apparatus for a neodymium-based rare earth rubber with adjustable mooney viscosity;
in order to achieve the above purpose, the utility model adopts the following technical proposal:
the application creatively provides a production facility of neodymium rare earth rubber of adjustable mooney viscosity, including the polymeric kettle, this polymeric kettle connects the raw materials feedstock channel who is used for inputing butadiene and is used for inputing the catalyst feedstock channel of quaternary ageing liquid, still includes the stabilizer solution feedstock channel who is used for inputing the stabilizer solution, this stabilizer solution feedstock channel is connected with the polymeric kettle through the butyl oil mixing channel with raw materials feedstock channel jointly, the polymeric kettle still is connected with the regulator feedstock channel who is used for inputing the quality control agent.
In the above production apparatus for a neodymium-based rare earth rubber with an adjustable mooney viscosity, the feed ends of the stabilizer solution feed passage are respectively connected with the stabilizer distribution passage and the solvent oil distribution passage.
In the above production apparatus for a neodymium-based rare earth rubber with an adjustable mooney viscosity, the raw material feed passage is provided with a first flow rate adjustment valve.
In the above production apparatus for a neodymium-based rare earth rubber with an adjustable mooney viscosity, a second flow rate adjustment valve is provided on the stabilizer solution feed passage.
In the above-mentioned production apparatus of neodymium-based rare earth rubber with adjustable mooney viscosity, a mixer is connected in the butyl oil mixing passage.
In the above-mentioned production apparatus for a neodymium-based rare earth rubber with an adjustable mooney viscosity, a preheater is provided at an upstream end of the mixer in the butane oil mixing passage.
In the above production apparatus for a neodymium-based rare earth rubber with an adjustable mooney viscosity, the regulator feed passage is connected to the bottom of the side surface of the polymerizer.
In the above production apparatus of a neodymium-based rare earth rubber with an adjustable mooney viscosity, the mixer is a static mixer.
In the above-mentioned production apparatus of a neodymium-based rare earth rubber adjustable in mooney viscosity, the mixer includes a mixer tube having an inlet end and an outlet end, an axial direction of the mixer tube coincides with an axial direction of the butane oil mixing passage, and a mixing unit is provided in the mixer tube.
In the above production apparatus for a neodymium-based rare earth rubber with an adjustable mooney viscosity, the mixing unit includes four mixing blades twisted in the same direction, which are sequentially arranged from the inlet end to the outlet end.
Compared with the prior art, the utility model has the advantages of:
through the utility model provides an equipment has increased stabilizer solution feedstock channel and regulator feedstock channel and has inputed stabilizer and quality control agent for polymerization, can improve polymerization efficiency more effectively, and production quality is controlled fast more conveniently, suitable long-time industrialization continuous production, can also satisfy different customers to the different demands of rubber mooney viscosity.
Drawings
FIG. 1 is a process flow diagram provided herein.
Fig. 2 is a block diagram of a mixer provided in the present application.
In the figure, a polymerizer 1, a mixer 2, a mixer cartridge 20, an inlet port 201, an outlet port 202, a mixing unit 21, a mixing blade 211, a butane oil mixing passage 30, a raw material feed passage 31, a first flow rate regulating valve 310, a catalyst feed passage 32, a stabilizer solution feed passage 33, a second flow rate regulating valve 330, a stabilizer distribution passage 331, a solvent oil distribution passage 332, a regulator feed passage 34, and a preheater 4.
Detailed Description
Further illustrated by the following specific examples;
as shown in FIG. 1, a production apparatus for neodymium-based rare earth rubber with adjustable Mooney viscosity comprises a polymerizer 1, wherein the polymerizer 1 is connected with a raw material feeding channel 31 for inputting butadiene and a catalyst feeding channel 32 for inputting quaternary aging liquid, and further comprises a stabilizer solution feeding channel 33 for inputting a stabilizer solution, the stabilizer solution feeding channel 33 and the raw material feeding channel 31 are jointly connected with the polymerizer 1 through a butyl oil mixing channel 30, and the polymerizer 1 is further connected with a regulator feeding channel 34 for inputting a quality regulator. Through the utility model provides an equipment has increased stabilizer solution feedstock channel 33 and regulator feedstock channel 34 and has inputed stabilizer and quality control agent for polymerization, can improve polymerization efficiency more effectively, and production quality is controlled fast more conveniently, suitable long-time industrialization continuous production, can also satisfy different customers to the different demands of rubber mooney viscosity.
Specifically, the polymerizer 1 is an apparatus for producing a polymer compound, and includes a vertical cylindrical autoclave and a jacket provided outside the autoclave for introducing steam or cold water to heat or cool the autoclave. The polymerization vessel 1 has a stirring device therein for stirring the reactants.
The feed ends of the stabilizer solution feed passage 33 are connected to the stabilizer distribution passage 331 and the solvent oil distribution passage 332, respectively. A mixed feed of stabilizer and mineral spirits is provided.
The raw material feed passage 31 is provided with a first flow rate regulating valve 310. The stabilizer solution feed passage 33 is provided with a second flow rate regulating valve 330. The first flow rate regulating valve 310 and the second flow rate regulating valve 330 are used to regulate the feeding amount of the raw material in the raw material feeding passage 31 and the feeding amount of the stabilizer solution in the stabilizer solution feeding passage 33, respectively, thereby effectively controlling the mixing ratio of the butadiene raw material and the stabilizer solution.
The preheater 4 and the mixer 2 are connected in sequence in the material flow direction in the oil mixing channel 30.
The preheater 4 is specifically a heat exchanger, and the mixture in the butadiene oil mixing channel 30 exchanges heat with the heating medium in the heating pipeline in the heat exchanger, so that the mixture is heated, the mixing temperature of the butadiene raw material and the stabilizer solution is increased, on one hand, the mixing efficiency is improved, and on the other hand, the butadiene raw material and the stabilizer solution are preheated in the polymerization kettle, so that the polymerization reaction efficiency is improved.
The regulator feed passage 34 is connected to the bottom of the polymerization vessel 1 on the side. The response time is fast, the Mooney viscosity can be quickly adjusted, the adjustment sensitivity is high, and the overall reaction strength is not influenced.
As shown in fig. 2, the mixer 2 is a static mixer, the mixer 2 includes a mixer cartridge 20 having an inlet end 201 and an outlet end 202, the axial direction of the mixer cartridge 20 coincides with the axial direction of the oil mixing passage 30, and the mixer cartridge 20 is provided with a mixing unit 21 therein. The mixing unit 21 includes four mixing blades 211 twisted in the same direction sequentially from the inlet end 201 toward the outlet end 202. The two ends of the mixer shell 20 are fixedly connected with the oil mixing channel 30 through flanges respectively.
The working principle of the utility model is as follows:
the stabilizer and the solvent oil are added into the stabilizer distribution channel 331 and the solvent oil distribution channel 332 according to the ratio, and are mixed to form a stabilizer solution, meanwhile, butadiene is added into the raw material feed channel 31, the first flow regulating valve 310 and the second flow regulating valve 330 are regulated to enable the butadiene and the stabilizer solution to reach a set ratio, and the mixture is preheated by the preheater 4 and then is fed into the mixer 2 to be mixed. The mixture of butadiene and stabilizer solution and the catalyst fed in the catalyst feed passage 32 are polymerized in the reactor, and after a certain time, a quality modifier is fed from the bottom of the side of the polymerizer 1 through a modifier feed passage 34, thereby adjusting the Mooney viscosity of the rubber.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Although the terms of polymerizer 1, mixer 2, mixer cartridge 20, inlet end 201, outlet end 202, mixing unit 21, mixing blade 211, oil mixing passage 30, raw material feed passage 31, first flow rate regulating valve 310, catalyst feed passage 32, stabilizer solution feed passage 33, second flow rate regulating valve 330, stabilizer distribution passage 331, solvent oil distribution passage 332, regulator feed passage 34, preheater 4, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention and should not be interpreted as imposing any additional limitations that are contrary to the spirit of the present invention.
Claims (10)
1. A production facility of neodymium-based rare earth rubber with adjustable Mooney viscosity, which comprises a polymerization kettle (1), wherein the polymerization kettle (1) is connected with a raw material feeding channel (31) for inputting butadiene and a catalyst feeding channel (32) for inputting quaternary aging liquid, and is characterized in that: the device also comprises a stabilizer solution feeding channel (33) for inputting a stabilizer solution, the stabilizer solution feeding channel (33) and the raw material feeding channel (31) are connected with the polymerization kettle (1) together through a butyl oil mixing channel (30), and the polymerization kettle (1) is also connected with a regulator feeding channel (34) for inputting a quality regulator.
2. The apparatus for producing a neodymium-based rare earth rubber with an adjustable mooney viscosity according to claim 1, wherein: the feed ends of the stabilizer solution feed channel (33) are respectively connected with a stabilizer distribution channel (331) and a solvent oil distribution channel (332).
3. The apparatus for producing a neodymium-based rare earth rubber with an adjustable mooney viscosity according to claim 1, wherein: the raw material feeding channel (31) is provided with a first flow regulating valve (310).
4. The apparatus for producing a neodymium based rare earth rubber with an adjustable mooney viscosity according to claim 3, wherein: and a second flow regulating valve (330) is arranged on the stabilizer solution feeding channel (33).
5. The apparatus for producing a neodymium based rare earth rubber with an adjustable Mooney viscosity according to claim 4, wherein: a mixer (2) is connected in the oil mixing channel (30).
6. The apparatus for producing a neodymium-based rare earth rubber with an adjustable mooney viscosity according to claim 5, wherein: and a preheater (4) is arranged at the upstream end of the mixer (2) in the mixed oil passage (30).
7. The apparatus for producing a neodymium-based rare earth rubber with an adjustable mooney viscosity according to claim 1, wherein: the regulator feed channel (34) is connected with the side bottom of the polymerization kettle (1).
8. The apparatus for producing a neodymium-based rare earth rubber with an adjustable mooney viscosity according to claim 5, wherein: the mixer (2) is a static mixer.
9. The apparatus for producing a neodymium-based rare earth rubber with an adjustable mooney viscosity according to claim 8, wherein: the mixer (2) comprises a mixer cartridge (20) having an inlet end (201) and an outlet end (202), the axial direction of the mixer cartridge (20) coinciding with the axial direction of the butane oil mixing passage (30), and a mixing unit (21) being provided in the mixer cartridge (20).
10. The apparatus for producing a neodymium-based rare earth rubber with an adjustable mooney viscosity according to claim 9, wherein: the mixing unit (21) comprises four mixing blades (211) which are twisted in the same direction and are sequentially arranged from the inlet end (201) to the outlet end (202).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022977199.7U CN214076650U (en) | 2020-12-09 | 2020-12-09 | Production equipment of neodymium rare earth rubber with adjustable Mooney viscosity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022977199.7U CN214076650U (en) | 2020-12-09 | 2020-12-09 | Production equipment of neodymium rare earth rubber with adjustable Mooney viscosity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214076650U true CN214076650U (en) | 2021-08-31 |
Family
ID=77462171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022977199.7U Active CN214076650U (en) | 2020-12-09 | 2020-12-09 | Production equipment of neodymium rare earth rubber with adjustable Mooney viscosity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214076650U (en) |
-
2020
- 2020-12-09 CN CN202022977199.7U patent/CN214076650U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3434703B1 (en) | Method for industrial production of trans-butadiene-isoprene copolymer rubber and apparatus therefor | |
| Friebe et al. | Polymerization of 1, 3‐Butadiene Initiated by Neodymium Versatate/Diisobutylaluminium Hydride/Ethylaluminium Sesquichloride: Kinetics and Conclusions About the Reaction Mechanism | |
| CN107522806B (en) | Continuous polymerization method for preparing rare earth butadiene rubber | |
| CN102532379B (en) | Polymerization method for preparing rare earth isoprene rubber | |
| CN214076650U (en) | Production equipment of neodymium rare earth rubber with adjustable Mooney viscosity | |
| CN103476780B (en) | Lanthanide complexes catalyst and use its polymerization | |
| CA2019159C (en) | High solids solution polymerization | |
| CN112552441B (en) | Preparation method of neodymium rare earth rubber | |
| Proß et al. | Modelling the polymerization of 1, 3‐butadiene in solution with a neodymium catalyst | |
| CN101880339A (en) | Ziegler-Natta polyethylene catalyst with wide molecular weight distribution, and preparation method thereof | |
| CN103360525A (en) | Polymerization method | |
| CN102234342B (en) | Method for preparing rare earth catalyst applied to isoprene rubber production | |
| CN213506691U (en) | Continuous aging device for ternary rare earth catalyst | |
| CN103788317A (en) | Olefines unsaturated bond-containing polymer hydrogenation reaction method | |
| Laundrie et al. | Low Temperature Chemical Rubber by a Continuous Pilot Plant Process | |
| CN103788238A (en) | Hydrogenation reaction method of polymer containing olefin unsaturated bonds | |
| CN114539446A (en) | Hydrogenation reaction method of conjugated diene-containing polymer | |
| CN104292370B (en) | A kind of propylene continuous alternating temperature prepolymerization device and prepolymerization technology of propylene | |
| CN1170857C (en) | Method and apparatus for efficient intermittent production of polymer solution or emulsion | |
| CN116987219A (en) | Process for continuous polymerization of conjugated diolefins | |
| CN205074002U (en) | Modified continuous feeding removes hot chemical reactor fast | |
| CN112279941B (en) | Continuous ageing device and continuous ageing process for ternary rare earth catalyst | |
| CN115536766B (en) | Preparation method and application of catalyst for preparing polyethylene resin by gas phase polymerization | |
| CN111019031A (en) | Method for controlling viscosity of molybdenum-based butadiene catalytic polymerization system | |
| CN105732868B (en) | The continuous solution polymerization method and rare-earth isoprene rubber and vulcanization rubber of rare-earth isoprene rubber |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |