JPS5693710A - Continuous suspension polymerization of vinyl chloride - Google Patents
Continuous suspension polymerization of vinyl chlorideInfo
- Publication number
- JPS5693710A JPS5693710A JP17040779A JP17040779A JPS5693710A JP S5693710 A JPS5693710 A JP S5693710A JP 17040779 A JP17040779 A JP 17040779A JP 17040779 A JP17040779 A JP 17040779A JP S5693710 A JPS5693710 A JP S5693710A
- Authority
- JP
- Japan
- Prior art keywords
- polymerization
- polymerizers
- vinyl chloride
- until
- polymerizer
- 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.)
- Granted
Links
Landscapes
- Polymerisation Methods In General (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
PURPOSE: To stably conduct continuous polymerization of vinyl chloride for a long time, by connecting a plurality of multistage continuous tray polymerizer in series, continuing the polymerization in the first polymerizer until the polymerization system passes its unstable region, and then gradually heightening the conversion in the subsequent polymerizers.
CONSTITUTION: Vinyl chloride is polymerized in suspension by feeding a polymerization material to which a scale-preventing agent has been added, into the first stage of a plurality of the polymerizers of the above type, and then passing the reaction mixture through the subsequent polymerizers each of which has substantially no vapor phase. In the above process, the polymerization in the first stage is conducted under forced agitation (power consumption of the agitator, of about 1.5W3 KW per m3 of content is preferred and those of about 0.5W1Kw/m3 content can be used for the second or later polymerizers) until the system passes the unstable region of the polymer dispersion, i.e., a region in which the polymer is low in polymerization degree and scales are apt to deposit. Then, the polymerization is continued in the second or later polymerizers until the final conversion of about 80W95% is obtained.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17040779A JPS5693710A (en) | 1979-12-28 | 1979-12-28 | Continuous suspension polymerization of vinyl chloride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17040779A JPS5693710A (en) | 1979-12-28 | 1979-12-28 | Continuous suspension polymerization of vinyl chloride |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5693710A true JPS5693710A (en) | 1981-07-29 |
| JPH0118081B2 JPH0118081B2 (en) | 1989-04-04 |
Family
ID=15904344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17040779A Granted JPS5693710A (en) | 1979-12-28 | 1979-12-28 | Continuous suspension polymerization of vinyl chloride |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5693710A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009530463A (en) * | 2006-03-24 | 2009-08-27 | アクゾ ノーベル ナムローゼ フェンノートシャップ | Continuous production method of vinyl chloride (co) polymer |
| USRE45940E1 (en) | 2006-03-24 | 2016-03-22 | Akzo Nobel N.V. | Continuous process for the production of vinyl chloride (co)polymers |
| CN106621464A (en) * | 2016-09-21 | 2017-05-10 | 北京市饲料监察所 | Molecular imprinted column capable of separating clenbuterol, salbutamol and ractopamine at same time |
-
1979
- 1979-12-28 JP JP17040779A patent/JPS5693710A/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009530463A (en) * | 2006-03-24 | 2009-08-27 | アクゾ ノーベル ナムローゼ フェンノートシャップ | Continuous production method of vinyl chloride (co) polymer |
| KR101359595B1 (en) * | 2006-03-24 | 2014-02-07 | 아크조 노벨 엔.브이. | Continuous process for the production of vinyl chloride (co)polymers |
| USRE45940E1 (en) | 2006-03-24 | 2016-03-22 | Akzo Nobel N.V. | Continuous process for the production of vinyl chloride (co)polymers |
| CN106621464A (en) * | 2016-09-21 | 2017-05-10 | 北京市饲料监察所 | Molecular imprinted column capable of separating clenbuterol, salbutamol and ractopamine at same time |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0118081B2 (en) | 1989-04-04 |
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