SU498824A1 - Method of stabilizing polyvinyl chloride - Google Patents
Method of stabilizing polyvinyl chlorideInfo
- Publication number
- SU498824A1 SU498824A1 SU741991317A SU1991317A SU498824A1 SU 498824 A1 SU498824 A1 SU 498824A1 SU 741991317 A SU741991317 A SU 741991317A SU 1991317 A SU1991317 A SU 1991317A SU 498824 A1 SU498824 A1 SU 498824A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- stabilizing
- polyvinyl chloride
- polymerization
- conversion
- stabilizing polyvinyl
- Prior art date
Links
Description
(54) СПОСОБ СТАБИЛИЗАЦИИ ПОЛИВИНИЛХЛОРИДА(54) METHOD OF STABILIZATION OF POLYVINYL CHLORIDE
перекисного катализатора (Б пересчете на активный кислород).peroxide catalyst (B based on active oxygen).
Процесс ведут при температуре 76°С и давлегши 15 кгс/см до koHBepcHH ВХ 8-15%, после чего в реактор загружают еще 2000 кг ВХ дл промьтки. Затем реакционную массу перегружают в горизонтальный цилиидр1П ескш1 аппарат с мешалкой объемом 15 м (втора стади ) , в KoiopbilT предварительно загружают еще 150 г перекисного катализатора (в пересчете на активньй кислород) и 1300 кг мономера. Полимеризацию провод т при температуое 55° С и давлении 8,4 кгс/см до конверсии 6090% . За 30-120 шш до окончани процесса в автоклав ввод т смесь, состо щзао из 20 кг эпоксидирсванного соевого масла и I кг дифешйолпропана-ант| ксиданта. После 30-минутного перемешивани производитс дегазаци незаполимеризовавшегос ВХ.The process is carried out at a temperature of 76 ° C and a pressure of 15 kgf / cm to koHBepcHH BX 8-15%, after which another 2000 kg BX is charged to the reactor. Then the reaction mass is overloaded into a horizontal cylindrical apparatus with a stirrer of 15 m (second stage), another 150 g of peroxide catalyst (in terms of active oxygen) and 1300 kg of monomer are preloaded into KoiopbilT. The polymerization is carried out at a temperature of 55 ° C and a pressure of 8.4 kgf / cm to a conversion of 6090%. 30–120 shsh before the end of the process, the mixture consisting of 20 kg of epoxy-dyed soybean oil and I kg of difesjolpropane-ant is introduced into the autoclave; ksidanta. After 30 minutes of mixing, degassing of the non-polymerized BX is performed.
Общее врем полимеризации 7-8 ч. Пример приведен дл ПВХ с константой Фикентчера64-6Total polymerization time is 7-8 hours. An example is given for PVC with Fikentscher constant 64-6
П р и м е р 2. Суспензионна полимеризаци ВХ.PRI mme R 2. Suspension polymerization of BX.
Суспензионную полимеризацию ВХ провод т в одну стадию в вертикальном цилиндрическом аппарате с мешалкой объемом 30 м в присутствии 120 г перекисного катализатора (в пересчете на активный кислорог, 3,4 кг защитного коллоида-метоцил и 8500 кг мономера. Процесс провод т при температуре .н давлении 7,6 кгс/см. В реакторе полимеризацию ведут до 60-90% конверсии ВХ.Suspension polymerization of VC is carried out in one stage in a vertical cylindrical apparatus with a stirrer with a volume of 30 m in the presence of 120 g of peroxide catalyst (in terms of active oxygen, 3.4 kg of protective colloid-metocil and 8500 kg of monomer. The process is carried out at pressure of 7.6 kgf / cm. In the reactor, the polymerization is up to 60-90% conversion of VC.
За 30-120 мин до окончани процесса в реактор ввод т смесь, состо щую из 20 кг зпоксидированного соевого масла и I. кг дифенилолпропана. Общее врем полимеризации 6-9 ч. Пример приведен дл ПВХ с константой Фикеитчера 70-73.30-120 minutes before the end of the process, a mixture consisting of 20 kg of zpoxidized soybean oil and 1 kg of diphenylolpropane is introduced into the reactor. The total polymerization time is 6-9 hours. An example is given for PVC with a Fikeitcher constant of 70-73.
Результаты опытов приведены в таблице.The results of the experiments are given in the table.
полимеризаци polymerization
70 0,5115370 0.51153
710,52 153710.52 153
71 0,4812771 0.48127
710,49137710.49137
650,64650.64
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU741991317A SU498824A1 (en) | 1974-01-30 | 1974-01-30 | Method of stabilizing polyvinyl chloride |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU741991317A SU498824A1 (en) | 1974-01-30 | 1974-01-30 | Method of stabilizing polyvinyl chloride |
Publications (1)
Publication Number | Publication Date |
---|---|
SU498824A1 true SU498824A1 (en) | 1979-10-05 |
Family
ID=20574217
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU741991317A SU498824A1 (en) | 1974-01-30 | 1974-01-30 | Method of stabilizing polyvinyl chloride |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU498824A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2529493C1 (en) * | 2013-06-24 | 2014-09-27 | Открытое Акционерное Общество "Каустик" | Method for suspension polymerisation of vinyl chloride |
-
1974
- 1974-01-30 SU SU741991317A patent/SU498824A1/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2529493C1 (en) * | 2013-06-24 | 2014-09-27 | Открытое Акционерное Общество "Каустик" | Method for suspension polymerisation of vinyl chloride |
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