SU605400A1 - METHOD OF OBTAINING BOTTLE KNOB - Google Patents
METHOD OF OBTAINING BOTTLE KNOBInfo
- Publication number
- SU605400A1 SU605400A1 SU02194905/05A SU2194905A SU605400A1 SU 605400 A1 SU605400 A1 SU 605400A1 SU 02194905/05 A SU02194905/05 A SU 02194905/05A SU 2194905 A SU2194905 A SU 2194905A SU 605400 A1 SU605400 A1 SU 605400A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- methyl chloride
- chloride
- catalyst
- solution
- concentrated
- Prior art date
Links
Landscapes
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
1. Способ получения бутилкаучука сополимеризацией изобутилена с изопреном в среде метилхлорида при (-30) - (-100)С в присутствии в качестве катализатора хлористого алюминия, отличающийся тем, что, с целью повышения активности катализатора, повышения молекулярного веса продукта и увеличения производительности установки, сначала готовят раствор катализатора в хлористом метиле концентрацией от 0,08 до 2 вес.%, затем разбавляют концентрированный раствор непосредственно перед полимеризатором при (-30) - (-90)С и времени контакта основной массы хлористого метила с хлористым алюминием от 10с до 10 с при соотношении потоков концентрированного раствора катализатора и растворителя от 1 : 3 до 1 : 99.2. Способ по п.1, отличающийся тем, что, с целью его упрощения, разбавление производят возвратной метилхлоридизобутиленовой фракцией при соотношении фракции и концентрированного раствора хлористого алюминия от 24 : 1 до 0,1 : 1,0.3. Способ по п.2, отличающийся тем, что метилхлоридизобутиленовая фракция перед использованием переиспаряется от тяжелокипящих примесей при 10 - 60С.1. The method of producing butyl rubber by copolymerization of isobutylene with isoprene in methyl chloride at (-30) - (-100) C in the presence of aluminum chloride as a catalyst, characterized in that, in order to increase the catalyst activity, increase the molecular weight of the product and increase plant capacity , first prepare a solution of the catalyst in methyl chloride with a concentration of from 0.08 to 2 wt.%, then dilute the concentrated solution immediately before the polymerizer at (-30) - (-90) C and the contact time of the main mass of chloride of methyl chloride with aluminum from 10c to 10 seconds at a ratio of concentrated catalyst solution flows and the solvent of 1: 3 to 1: 99.2. The method according to claim 1, characterized in that, in order to simplify it, the dilution is produced by returning the methyl chloride isobutylene fraction with a ratio of fraction and concentrated aluminum chloride solution from 24: 1 to 0.1: 1.0. The method according to claim 2, characterized in that the methyl chloride isobutylene fraction is re-evaporated from heavy boiling impurities at 10-60 ° C before use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU02194905/05A SU605400A1 (en) | 1975-04-23 | 1975-04-23 | METHOD OF OBTAINING BOTTLE KNOB |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU02194905/05A SU605400A1 (en) | 1975-04-23 | 1975-04-23 | METHOD OF OBTAINING BOTTLE KNOB |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU605400A1 true SU605400A1 (en) | 1999-12-10 |
Family
ID=60520837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU02194905/05A SU605400A1 (en) | 1975-04-23 | 1975-04-23 | METHOD OF OBTAINING BOTTLE KNOB |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU605400A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2470037C2 (en) * | 2007-08-31 | 2012-12-20 | Эксонмобил Кемикэл Пейтентс Инк. | Method of reducing deposits in polymerisation vessels |
-
1975
- 1975-04-23 SU SU02194905/05A patent/SU605400A1/en active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2470037C2 (en) * | 2007-08-31 | 2012-12-20 | Эксонмобил Кемикэл Пейтентс Инк. | Method of reducing deposits in polymerisation vessels |
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