SU401656A1 - METHOD OF BUTADIENE ISOLATION - Google Patents
METHOD OF BUTADIENE ISOLATIONInfo
- Publication number
- SU401656A1 SU401656A1 SU1734220A SU1734220A SU401656A1 SU 401656 A1 SU401656 A1 SU 401656A1 SU 1734220 A SU1734220 A SU 1734220A SU 1734220 A SU1734220 A SU 1734220A SU 401656 A1 SU401656 A1 SU 401656A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- butadiene
- isolation
- terpolymerization
- phosphites
- organic phosphites
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
1one
Изобретение относитс к. производству чистого мономерного бутадиена путем выделени его из углеводородных смесей методом экстрактивной ректификации, в частности к способу ингибировани при этой терполимеризации бутадиена.The invention relates to the production of pure monomeric butadiene by isolating it from hydrocarbon mixtures by an extractive distillation method, in particular, to a method of inhibiting butadiene in this terpolymerization.
Известен способ выделени бутадиена из углеводородных смесей методом экстрактивной ректификации с применением пол рных органических растворителей в присутствии в качестве ингибитора терполимеризации бутадиена сс-нитрозо-р-пафтола.There is a method for isolating butadiene from hydrocarbon mixtures by the method of extractive distillation using polar organic solvents in the presence of cc-nitroso-p-paftol as an inhibitor of terpolymerization of butadiene.
Предложенный способ предусматривает проведение процесса в присутствии дополнительных ингибиторов - органических фосфитов, что значительно сократит бразование тернолимера в процессе ректификации.The proposed method involves carrying out the process in the presence of additional inhibitors - organic phosphites, which will significantly reduce the formation of ternolimer in the process of rectification.
В качестве органических фосфитов используют фосфиты общей формулыAs organic phosphites use phosphites of the general formula
Примерами органических фосфитов вл ютс Examples of organic phosphites are
ГгYy
/Р-ОСзН;- (I)/ R-OSSN; - (I)
CiCHslsCiCHsls
(CHsIsC(CHsIsC
CHiCHi
умом (3-5 мм рт. ст.) при 20-100°С. Кроме того, в аналогичных услови х к а-нитрозо-рнафтолу (0,0005 г) добавл ют 0,0015 г фосфита I.mind (3-5 mm of mercury.) at 20-100 ° C. In addition, 0.0015 g of phosphite I is added to a-nitroso-naphthol (0.0005 g) under similar conditions.
Результаты ингибйровани терполимеризации бутадиена (400 час, 80°С, без 02, затравка 1,0 вес. % и-полимера) смесью а-нитрозор-нафтола и органических фосфитов приведены в таблице.The results of inhibition of terpolymerization of butadiene (400 hours, 80 ° C, without 02, seed 1.0 wt.% And-polymer) with a mixture of a-nitrosor-naphthol and organic phosphites are shown in the table.
Предмет изобретени Subject invention
Способ выделени бутадиена из углеводородных смесей методам экстрактивной ректификации при помощи пол рных органических растворителей в присутствии а-нитрозо-р-нафтола в качестве ингибитора терполимеризации бутадиена, отличающийс тем, что, с целью сокращени образовани и терполимеров бутадиена , процесс ректификации провод т в присутствии дополнительных ингибиторов - органических фосфитов общей формулыThe method for separating butadiene from hydrocarbon mixtures to extractive distillation methods using polar organic solvents in the presence of a-nitroso-p-naphthol as an inhibitor of terpolymerization of butadiene, characterized in that, in order to reduce the formation and terpolymers of butadiene, the rectification process is carried out in the presence of additional inhibitors - organic phosphites of the general formula
././
/- ов/ - s
ОABOUT
где R - алкил, арил или алкарил; R - арилен или алкарилен.where R is alkyl, aryl or alkaryl; R - Allen or alkarylen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1734220A SU401656A1 (en) | 1972-01-04 | 1972-01-04 | METHOD OF BUTADIENE ISOLATION |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1734220A SU401656A1 (en) | 1972-01-04 | 1972-01-04 | METHOD OF BUTADIENE ISOLATION |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU401656A1 true SU401656A1 (en) | 1973-10-12 |
Family
ID=20499039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU1734220A SU401656A1 (en) | 1972-01-04 | 1972-01-04 | METHOD OF BUTADIENE ISOLATION |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU401656A1 (en) |
-
1972
- 1972-01-04 SU SU1734220A patent/SU401656A1/en active
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