CN110088141A - The manufacturing method for the ethlyene dichloride system resin for preventing dirt from adhering to - Google Patents
The manufacturing method for the ethlyene dichloride system resin for preventing dirt from adhering to Download PDFInfo
- Publication number
- CN110088141A CN110088141A CN201780077522.3A CN201780077522A CN110088141A CN 110088141 A CN110088141 A CN 110088141A CN 201780077522 A CN201780077522 A CN 201780077522A CN 110088141 A CN110088141 A CN 110088141A
- Authority
- CN
- China
- Prior art keywords
- connecting pipings
- piping
- nitrogen
- polymer reactor
- dirt
- 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.)
- Pending
Links
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
- C08F14/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen
- C08F14/02—Monomers containing chlorine
- C08F14/04—Monomers containing two carbon atoms
- C08F14/06—Vinyl chloride
-
- 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
-
- 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
- C08F2/002—Scale prevention in a polymerisation reactor or its auxiliary parts
-
- 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
-
- 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
- C08F2/12—Polymerisation in non-solvents
- C08F2/16—Aqueous medium
- C08F2/18—Suspension polymerisation
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Polymerisation Methods In General (AREA)
Abstract
If being formed with dirt in the connecting pipings of the polymer reactor to manufacture ethlyene dichloride system resin, dirt growth, then occlusion in the piping, and obstacle is brought to polymerization technique；In particular, reaction controlling becomes difficult if safety valve connecting pipings occludes；Therefore, it is necessary to each connecting pipings of regular dismounting, and inside is cleaned；In addition, also having a possibility that vinyl chloride monomer gas is discarded to outside system at this time and not good enough；A kind of manufacturing method for executing and preventing the countermeasure of these situations is provided.Collect each connecting pipings on polymer reactor top, and link nitrogen piping 21 in the connecting pipings 20, and the nitrogen of enclosed piping part by volume；The vinyl chloride monomer gas of substance the reason of formation as dirt can be retracted into polymer reactor as a result, from connecting pipings 20, dirty formation can be prevented.
Description
Technical field
The present invention relates to a kind of when manufacturing ethlyene dichloride system resin in the connecting pipings for being connected to polymer reactor top
Inside not will form dirt method.
Background technique
In the manufacture of ethlyene dichloride system resin, as existing dirty countermeasure, matched by the connection on polymer reactor top
Copper pipe is wound on pipe or dual pipe is made and passes through 80 DEG C~90 DEG C of warm water, without making the basis formed as dirt
Thus vinyl chloride monomer gas condensation prevents dirty formation.Alternatively, in comparison, there is also following methods: passing through 5 DEG C of front and backs
Cooling water, by using cooling effect inhibit vinyl chloride monomer gas reaction and prevent dirty formation.
But in these methods, dirty formation can not be entirely prevented, it is insufficient for long-term dirty countermeasure.
Existing technical literature
Patent document
Patent document 1: Japanese Patent Laid-Open No. Sho 56-122810 bulletin
Patent document 2: Japanese Patent Laid-Open No. Sho 55-62908 bulletin
Patent document 3: Japanese Patent Laid-Open 8-176209 bulletin
Summary of the invention
Problem to be solved by the invention
It is an object of the invention to solve when manufacturing ethlyene dichloride system resin in the company for being connected to polymer reactor top
The inside for connecing piping is formed with the project of dirt, and improves productivity, safety and operating environment.
Technical means to solve problem
The present invention preferably collects vacuum pump connecting pipings, safety valve connecting pipings and air-bubble level connecting pipings and makes
At a connecting pipings.Moreover, recycling connecting pipings in the connecting pipings and ejected wash water/steam/vinyl chloride monomer gas
It is middle to set up nitrogen piping respectively.Even if not collecting vacuum pump connecting pipings, safety valve connecting pipings and air-bubble level connection to match
Pipe can also be coped with and setting up nitrogen piping in all connecting pipings.
Moreover, after the warm pure water of polymerization procedure is packed into, the open nitrogen piping set up in these connecting pipings
Valve, and the nitrogen of the part by volume in enclosed piping.
The effect of invention
According to the present invention, the shape of dirt can be prevented by enclosing nitrogen into each connecting pipings on polymer reactor top
At productivity, safety and operating environment thus can be improved.
In addition, by collecting vacuum pump connecting pipings, safety valve connecting pipings and air-bubble level connecting pipings, inspection portion
Position can be collected, therefore nitrogen is enclosed position and can be collected, and operation can be simplified, and workability when dissembling inspection mitigates.
Detailed description of the invention
Fig. 1 is the connecting pipings structure on existing polymer reactor top.
Fig. 2 is the connecting pipings for collecting polymer reactor top as an example of the invention and is connected to nitrogen piping
Structure when connecting pipings.
Fig. 3 is the photo (remove safety valve 12 and shot) inside the safety valve connecting pipings 12 of comparative example.
Fig. 4 be inside the vacuum pump connecting pipings 17 of comparative example photo (remove the horizontal part flange of connecting pipings 17 and
It is shot).
Fig. 5 is that the photo inside the air-bubble level connecting pipings 18 of comparative example (removes air-bubble level 18' and clapped
It takes the photograph).
Fig. 6 is that the photo that ejected wash water/steam/vinyl chloride monomer gas of comparative example recycles inside connecting pipings 16 (is torn open
It is lower to use axis 3, water dispersing disc 4 by spraying without dirty agent and without dirty agent spray nozzle 5, shot in auto polymerization reactor).
Fig. 7 is that the photo of embodiment collected inside connecting pipings 20 (removes the horizontal part flange for collecting connecting pipings 20
And shot).
Fig. 8 is that the photo that ejected wash water/steam/vinyl chloride monomer gas of embodiment recycles inside connecting pipings (removes
Axis 3, water dispersing disc 4, the upper cover without dirty agent spray nozzle 5, the condenser 6 that flows back are used in no dirty agent by spraying, from the condenser upper side that flows back
It is shot).
Specific embodiment
The present invention is following items etc..
A kind of manufacturing method of 1. ethlyene dichloride system resins of item, it is pre- in the connecting pipings being set in polymer reactor
First connection nitrogen piping, will be filled up in connecting pipings using nitrogen on one side, is polymerize on one side.
The manufacturing method of the 2. ethlyene dichloride system resins according to item 1 of item, wherein being packed into water, chlorine in polymer reactor
Change vinyl monomer and polymerization initiator, after being warming up to reaction temperature, keeps the nitrogen of the part by volume in connecting pipings or more enclosed
Into connecting pipings.
The manufacturing method of the 3. ethlyene dichloride system resins according to item 1 or item 2 of item, wherein connecting pipings is selected from loading
At least one of piping and taking-up piping.
The manufacturing method of the 4. ethlyene dichloride system resins according to any one of item 1 to item 3 of item, wherein connecting pipings is used
In connection selected from least one of safety valve, vacuum pump and level meter.
The manufacturing method of the 5. ethlyene dichloride system resins according to any one of item 1 to item 4 of item, use are provided with one
Polymer reactor of a connecting pipings as the connection purposes of safety valve, vacuum pump and level meter.
Hereinafter, being suitable for coming referring to attached drawing to the polymer reactor connecting pipings dirt countermeasure equipment in embodiments of the present invention
And it is described in detail using the manufacturing method of the equipment.
As shown in Figure 1, on polymer reactor top, safety valve connecting pipings 12, clear is set other than the condenser 6 that flows back
Wash water/steam/vinyl chloride monomer gas recycling connecting pipings 16, vacuum pump connecting pipings 17, vinyl chloride monomer loading are matched
Pipe 11, polymerization initiator are packed into piping 10 and air-bubble level connecting pipings 18.In addition, short-stopper investment piping 19 is connected
It is connected in vacuum pump connecting pipings 17.
In addition, being arranged by the inside that ejected wash water/steam/vinyl chloride monomer gas recycles connecting pipings 16 without dirty agent
Spraying device 3 and without dirty agent spray nozzle 5.Water dispersing disc 4 is the cleaning to make the ejected wash water piping 15 in polymer reactor
Water dispersion is simultaneously generally cleaned to whole in polymerizer.
Suspension polymerisation in ethlyene dichloride system resin manufacture is carried out by basis.Polymer reactor, which is attached to, to be made
The casing and reflux condenser 6 that cooling water passes through.In the polymerization procedure, first in polymer reactor and reflux is cool solidifying
Device 6 starts without dirty agent application step.It will be connected to vapor supply pipe 2 without dirty agent injection nozzle 5 without dirty agent supply pipe 1,
It will be mixed without dirty agent with vapor and from spraying them without dirty agent injection nozzle 5, in polymer reactor and reflux condenser 6
Coating is without dirty agent.
Secondly, then carrying out making to connect in container via vacuum pump for the purpose of deoxidation after opening if polymer reactor
Piping 17 becomes the step of vacuum, the followed by loading of water.If polymer reactor is continuously started in the state of closed,
Without vacuum step, and start the loading of water.
In the loading of water, pure water and dispersing agent are that autohemagglutination clutch bottom connecting pipings is packed into.After the loading of water,
Auto polymerization initiator is packed into piping 10 and is packed into polymerization initiator, and is packed into piping 11 from vinyl chloride monomer and is packed into ethlyene dichloride
Monomer.In addition, autohemagglutination clutch bottom connecting pipings is packed into Wen Chun in vinyl chloride monomer loading procedure or after loading
Water.The temperature of warm pure water is calculated in a manner of reaching reaction temperature in polymer reactor after warm pure water is packed into
Temperature.Thereafter, polymerization reaction starts, on one side by casing it is cooling with flow back condenser to by react the reaction heat generated into
Row cooling is reacted on one side until reaction heat disappears.
Dirt about each position is formed, and dirt is hardly formed first inside reflux condenser 6.Its reason is: reflux
Cooling water 7 and cooling water 8 flow through condenser 6 during the reaction, reflux condenser 6 is according to vinyl chloride monomer and reflux condensation mode
The gross area (heat transfer area) of device inner tube contact and adjust except heat and do not carry out the part of cooling and be enclosed nitrogen and every
It is washed when batch slurry is extracted out from the cleaning piping 9 for being connected to reflux condenser top.In addition, vinyl chloride monomer is packed into
Piping 11 is fitted into step in every batch of vinyl chloride monomer is cleaned by vinyl chloride monomer, therefore not will form dirt.
It is packed into piping 10 about polymerization initiator, also injects pure water in piping after being packed into initiator, it is several until reaction terminates
It not will form dirt.
But safety valve connecting pipings 12, vacuum pump connecting pipings 17 and the air-bubble level connection that do not cleaned are matched
Pipe 18 due to accompanying ethlyene dichloride system resin particle and the sensor portion in inner wall or air-bubble level will form dirt.Institute
It states dirt to gradually grow up, eventually leads to occlusion.
Even if in addition, having carried out ejected wash water/steam/vinyl chloride monomer gas recycling connecting pipings 16 of every batch of cleaning
Also membranaceous dirt can be formed in inner wall.If safety valve connecting pipings 12 occludes, rise in the pressure as caused by abnormal reaction etc.
Under safety valve work when gas in container releasing become inadequate, if further rise in pressure, be in jeopardy the state of affairs.Separately
Outside, about vacuum pump connecting pipings 17, short-stopper piping 19 is connected to the piping, because the polymerization of the investments such as abnormal response stops
Only input amount becomes inadequate when agent, there is the risk for becoming not stopping reaction.About in air-bubble level connecting pipings
Dirt in 18 is formed, and air-bubble level also becomes can not work normally if growth.Ejected wash water/steam/vinyl chloride monomer gas
Body recycling connecting pipings 16 rarely reaches occlusion, but by being returned using washing in the container of ejected wash water or vinyl chloride monomer gas
Receive etc., a part for forming, being attached to the membranaceous dirt of inner wall is peeled off and is stuck in water dispersing disc 4, therefore the container after slurry extraction
Interior washing becomes inadequate, and remaining ethlyene dichloride resin beads carry out additional poly- in the reaction step of next batch
It closes, white point deteriorates, and causes adverse effect to quality.
Therefore, it is necessary to carry out following operation: periodically open polymer reactor and disassembly, cleaning water/steam/ethlyene dichloride list
Body gas recycles connecting pipings 16, safety valve connecting pipings 12, vacuum pump connecting pipings 17, air-bubble level connecting pipings 18
Deng accompanying dirt is removed, needs sizable working hour and time thus.Also productivity can be impacted.In addition, will have
Harmful vinyl chloride monomer gas is discarded to outside system, in terms of the operating environment for it is not good enough.
[embodiment]
Hereinafter, being illustrated about Fig. 2 to the difference with Fig. 1.
Fig. 2 is using the connecting pipings for collecting polymer reactor top of the invention and to carry out nitrogen piping to connecting pipings
The embodiment of connection.Collect vacuum pump connecting pipings 17, safety valve connecting pipings 12, air-bubble level connecting pipings 18 and polymerization
Simultaneously a connecting pipings 20 is made in stopping agent investment piping 19.Moreover, in the connecting pipings and ejected wash water/steam/chlorination second
Nitrogen piping 21 and nitrogen piping 22 are set up in alkene monomer gas recycling connecting pipings respectively.
The case where not collecting vacuum pump connecting pipings 17, safety valve connecting pipings 12 and air-bubble level connecting pipings 18
Under, nitrogen piping is preferably set up in each connecting pipings.
The time point of reaction pressure after the warm pure water for reaching polymerization procedure is packed into, in these connecting pipings
The valve of the open nitrogen piping set up, and enclosed piping part by volume or the nitrogen for being piped part by volume or more.The pressure of nitrogen
Power is preferably the pressure of reaction pressure or more.In addition, preferably setting is tired in nitrogen piping in order to measure the enclosed volume of nitrogen
Count instrument.Enclosed be preferably a step of the nitrogen carries out in every batch of.
When enclosing nitrogen into connecting pipings it must be noted that (substantially in the case where connecting pipings is shorter
50cm or less), even if the nitrogen of enclosed connecting pipings part by volume, is mixed into connecting pipings by convection current vinyl chloride monomer
Interior, result there is a situation where to form dirt in connecting pipings.Nitrogen in the situation, preferably in enclosed piping part by volume
After gas, intermittently or it is continuously injected into nitrogen.As long as the judgement is coped with according to the adhesion condition of actual dirt.
As a result, in polymer reactor connecting pipings dirt formed die-offs, 300 batches continuously run after collect piping 20
Inside almost do not observe dirty attachment as shown in Figure 7.In addition, ejected wash water/steam/vinyl chloride monomer gas recycling connection is matched
Pipe 16 is also the same, does not observe dirty attachment as shown in Figure 8.
(comparative example)
As existing method, manufactured with the structure of Fig. 1.
In vacuum pump connecting pipings 17, safety valve connecting pipings 12, the air-bubble level connection on polymer reactor top
In the case where winding copper pipe on piping 18 is equal and passing through 80 DEG C~90 DEG C of warm water, 100 batches continuously run after each piping
Internal state be to observe as shone inside 12 internal pictures of safety valve connecting pipings of Fig. 3, the vacuum pump connecting pipings 17 of Fig. 4
Piece, Fig. 5 18 internal pictures of air-bubble level connecting pipings shown in dirt formation.In addition, copper pipe can not be wound and can not be kept the temperature
Or adhere to as shown in Figure 6 in wall surface inside cooling ejected wash water/steam/vinyl chloride monomer gas recycling connecting pipings membranaceous
Dirt, and observe the dirt that will be peeled off or the position that dirt has peeled off can be speculated as.
Industrial availability
As described above, in the present invention, it can be achieved that using inexpensive scrap build, in order to pass through the inert gases such as nitrogen
The reactant gas for the main reason for making as dirt is excluded to outside system, can enclose the indifferent gas more light-weight than reaction gas in advance
Body, therefore dirty formation can be certainly prevented in the connecting pipings of top, and expecting can be to manufacture ethlyene dichloride system resin
It is applied in polymer reactor.
The explanation of symbol
1: no dirty agent piping
2: vapor (spraying to use) piping
3: axis is used in no dirty agent by spraying
4: water dispersing disc
5: without dirty agent spray nozzle
6: reflux condenser
7,8: reflux condenser cooling water pipe
9: reflux condenser top ejected wash water piping
10: polymerization initiator is packed into piping
11: vinyl chloride monomer is packed into piping
12: safety valve connecting pipings
12': safety valve
13: the recycling piping of vinyl chloride monomer gas
14: vapor piping
15: ejected wash water is piped in polymer reactor
16: ejected wash water/steam/vinyl chloride monomer gas recycles connecting pipings
17: vacuum pump connecting pipings
17': vacuum pump
18: air-bubble level connecting pipings
18': air-bubble level
19: short-stopper investment piping
20: safety valve/air-bubble level/vacuum pump/short-stopper investment collects connecting pipings
21: safety valve/air-bubble level/vacuum pump/short-stopper investment is collected connecting pipings and is piped with nitrogen
22: ejected wash water/steam/vinyl chloride monomer gas recycling connecting pipings is piped with nitrogen
Claims (5)
1. a kind of manufacturing method of ethlyene dichloride system resin, connects in advance in the connecting pipings being set in polymer reactor
Nitrogen piping, will be filled up in connecting pipings using nitrogen on one side, is polymerize on one side.
2. the manufacturing method of ethlyene dichloride system according to claim 1 resin, wherein being packed into water, chlorine in polymer reactor
Change vinyl monomer and polymerization initiator, after being warming up to reaction temperature, keeps the nitrogen of the part by volume in connecting pipings or more enclosed
Into connecting pipings.
3. the manufacturing method of ethlyene dichloride system according to claim 1 or 2 resin, wherein connecting pipings is matched selected from loading
At least one of pipe and taking-up piping.
4. the manufacturing method of ethlyene dichloride system according to any one of claim 1 to 3 resin, wherein connecting pipings is used for
Connection is selected from least one of safety valve, vacuum pump and level meter.
5. the manufacturing method of ethlyene dichloride system according to any one of claim 1 to 4 resin, use are provided with one
Polymer reactor of the connecting pipings as the connection purposes of safety valve, vacuum pump and level meter.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016253606A JP2018104591A (en) | 2016-12-27 | 2016-12-27 | Manufacturing method of vinyl chloride resin for preventing scale adhesion |
| JP2016-253606 | 2016-12-27 | ||
| PCT/JP2017/038244 WO2018123233A1 (en) | 2016-12-27 | 2017-10-24 | Method for producing vinyl chloride resin that prevents scaling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110088141A true CN110088141A (en) | 2019-08-02 |
Family
ID=62707969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780077522.3A Pending CN110088141A (en) | 2016-12-27 | 2017-10-24 | The manufacturing method for the ethlyene dichloride system resin for preventing dirt from adhering to |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JP2018104591A (en) |
| KR (1) | KR20190096951A (en) |
| CN (1) | CN110088141A (en) |
| AU (1) | AU2017389285B2 (en) |
| TW (1) | TW201823274A (en) |
| WO (1) | WO2018123233A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114321715A (en) * | 2021-11-25 | 2022-04-12 | 青海盐湖海纳化工有限公司 | Chloroethylene storage tank water injection system |
| CN114682182A (en) * | 2020-12-28 | 2022-07-01 | 中昊晨光化工研究院有限公司 | Device system and method for producing polymer by gas phase method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4098972A (en) * | 1975-03-24 | 1978-07-04 | Shin-Etsu Chemical Co., Ltd. | Method for bulk polymerization of vinyl chloride |
| JPS56125411A (en) * | 1980-03-06 | 1981-10-01 | Toagosei Chem Ind Co Ltd | Suspension polymerization of vinyl chloride type monomer |
| CN1050722A (en) * | 1989-09-18 | 1991-04-17 | 钟渊化学工业株式会社 | The polymerization unit and the method for preparation vinyl chloride resin |
| JPH0912612A (en) * | 1995-06-23 | 1997-01-14 | Mitsubishi Chem Corp | Production of vinyl chloride polymer |
| CN1472462A (en) * | 2002-07-05 | 2004-02-04 | ��������ķ������ | Prevention of accumulatnig materials unwanted |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4829627B1 (en) * | 1969-09-08 | 1973-09-12 | ||
| JPS5024892B2 (en) * | 1971-08-21 | 1975-08-19 | ||
| JPS5562908A (en) | 1978-11-07 | 1980-05-12 | Nippon Zeon Co Ltd | Polymerization of vinyl chloride and its device |
| JPS56122810A (en) | 1980-03-04 | 1981-09-26 | Chisso Corp | Additional cooling in polymerizing vinyl chloride or the like by using reflux condenser |
| JPS5938212A (en) * | 1982-08-27 | 1984-03-02 | Mitsui Toatsu Chem Inc | Polymerization of vinyl chloride |
| JP3005034B2 (en) * | 1990-11-02 | 2000-01-31 | 日本ゼオン株式会社 | Method for producing vinyl chloride polymer |
| JP3374567B2 (en) | 1994-12-21 | 2003-02-04 | 信越化学工業株式会社 | Method for producing vinyl chloride polymer |
| JP3742166B2 (en) * | 1996-11-29 | 2006-02-01 | 株式会社クラレ | Polymer adhesion prevention method |
| JP2004196842A (en) * | 2002-12-16 | 2004-07-15 | Sumitomo Chem Co Ltd | Method for producing polymer |
-
2016
- 2016-12-27 JP JP2016253606A patent/JP2018104591A/en active Pending
-
2017
- 2017-10-24 CN CN201780077522.3A patent/CN110088141A/en active Pending
- 2017-10-24 KR KR1020197012932A patent/KR20190096951A/en not_active IP Right Cessation
- 2017-10-24 WO PCT/JP2017/038244 patent/WO2018123233A1/en active Application Filing
- 2017-10-24 AU AU2017389285A patent/AU2017389285B2/en active Active
- 2017-11-06 TW TW106138331A patent/TW201823274A/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4098972A (en) * | 1975-03-24 | 1978-07-04 | Shin-Etsu Chemical Co., Ltd. | Method for bulk polymerization of vinyl chloride |
| JPS56125411A (en) * | 1980-03-06 | 1981-10-01 | Toagosei Chem Ind Co Ltd | Suspension polymerization of vinyl chloride type monomer |
| CN1050722A (en) * | 1989-09-18 | 1991-04-17 | 钟渊化学工业株式会社 | The polymerization unit and the method for preparation vinyl chloride resin |
| JPH0912612A (en) * | 1995-06-23 | 1997-01-14 | Mitsubishi Chem Corp | Production of vinyl chloride polymer |
| CN1472462A (en) * | 2002-07-05 | 2004-02-04 | ��������ķ������ | Prevention of accumulatnig materials unwanted |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114682182A (en) * | 2020-12-28 | 2022-07-01 | 中昊晨光化工研究院有限公司 | Device system and method for producing polymer by gas phase method |
| CN114321715A (en) * | 2021-11-25 | 2022-04-12 | 青海盐湖海纳化工有限公司 | Chloroethylene storage tank water injection system |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2017389285A1 (en) | 2019-06-27 |
| WO2018123233A1 (en) | 2018-07-05 |
| JP2018104591A (en) | 2018-07-05 |
| TW201823274A (en) | 2018-07-01 |
| KR20190096951A (en) | 2019-08-20 |
| AU2017389285B2 (en) | 2022-08-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110088141A (en) | The manufacturing method for the ethlyene dichloride system resin for preventing dirt from adhering to | |
| CN105829364B (en) | Method for preparing the butylene copolymer of propylene/1 | |
| JP6235170B2 (en) | Ethylene polymerization process with improved slurry pump performance | |
| JP5484290B2 (en) | Propylene polymerization reactor and method for producing propylene block copolymer | |
| CN104707214B (en) | Infusion weighing monitoring method and system | |
| CN102884124A (en) | Propylene polymer compositions | |
| JPH04103604A (en) | Catalytic component for olefin polymerization | |
| JP4565165B2 (en) | Polymerization process including initiator metering | |
| CN103168054A (en) | Catalyst system for the polymerization of olefins | |
| JP5687295B2 (en) | 4-methyl-1-pentene polymer, production method thereof and use thereof | |
| CN104016023A (en) | Liquid fertilizer retail machine | |
| CN101754983B (en) | Process for recovering brominated butadiene polymers from solution | |
| KR101319234B1 (en) | Process for preparing polybutadiene latex | |
| SA98190502B1 (en) | Continuous process to obtain PORPYLENE polymers | |
| CN110293094A (en) | A kind of system for the cleaning of irregular tubulose auto parts and components | |
| JP2019001121A (en) | Mold cleaning device and mold cleaning method | |
| CN214182063U (en) | Cleaning device for high-temperature nylon salt solution filter screen | |
| CN213224238U (en) | Be applied to water cooling plant of die-casting linear robot automated production | |
| JP7306377B2 (en) | Method and apparatus for producing 1,2,3,4-tetrachlorobutane | |
| CN220737557U (en) | Steam kettle washing system for experimental biodegradation polymerization device | |
| CN215161029U (en) | Sulfur tetrafluoride sulphur washing device | |
| CN103568338B (en) | Accelerate the method for the solidification process in the resin overflow system for casting | |
| CN220819671U (en) | Pressure-resistant detection tool for cooling channel of die | |
| CN221580617U (en) | Acrylic acid reactor heat transfer medium oil protection device | |
| JPS6117841B2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190802 |