SU775099A1 - Method of separating diolefin-containing c4-c5 hydrocarbon mixtures - Google Patents
Method of separating diolefin-containing c4-c5 hydrocarbon mixtures Download PDFInfo
- Publication number
- SU775099A1 SU775099A1 SU772536026A SU2536026A SU775099A1 SU 775099 A1 SU775099 A1 SU 775099A1 SU 772536026 A SU772536026 A SU 772536026A SU 2536026 A SU2536026 A SU 2536026A SU 775099 A1 SU775099 A1 SU 775099A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- solvent
- inhibitor
- hydrocarbon mixtures
- diolefin
- separating
- Prior art date
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Изобретение относитс к области разделени углеводородньЬс смесей в присутствии пол рных органических экстрагентов, содержащих ингибиторы термополимеризацин диолефинов, и может быть использовано в. производстве мономеров дл синтетического каучука.This invention relates to the separation of hydrocarbon mixtures in the presence of polar organic extractants containing thermopolymerization diolefins inhibitors, and can be used in. production of monomers for synthetic rubber.
В процессе экстрактивной ректификации имеет место термополимеризаци диолефина в зонах высоких температур. Полимеры вьшод тс в виде раствора их в растворителе, где концгнтраци последнего составл ет от 30 до 50 вес.%. Дл снижени потерь диолефина и растворител используют растворитель, содержащий ингибиторы термополимеризации.In the process of extractive rectification, thermopolymerization of diolefin takes place in high-temperature zones. The polymers are recovered in the form of a solution of them in a solvent, where the concentration of the latter is from 30 to 50% by weight. A solvent containing thermopolymerization inhibitors is used to reduce the loss of the diolefin and the solvent.
Известен способ разделени углеводородов, где дл снижени количества образующихс полимеров в растворитель ввод т ингибитор термополимеризации, в частности фурфурол, ароматические нитросоедииени , бензальдегид и др. 1.A known method of separating hydrocarbons, where an inhibitor of thermal polymerization is introduced into the solvent to reduce the amount of polymers formed, in particular furfural, aromatic nitromedia, benzaldehyde and others. 1.
Известно также использование в процессах разделени С4 - Cs-углеводородных смесей, содержащих диблефины, ингибитора Na и Znсолей формальдегидсульфоксиловой кислотыIt is also known to use in the separation processes of C4 - Cs-hydrocarbon mixtures containing diblifins, an inhibitor of Na and Z salts of formaldehyde sulfoxylic acid.
общей формулы НОСН2-О-2-Ме, где Me Na , Zn.General formula HOCH2-O-2-Me, where Me Na, Zn.
Применение такого ингибитора может привести к накоплению солей натри или цинка вследствие низкой стабильности ингибитора при высоких температурах, так как разложение ингибитора идет с образованием солей органических кислот, например формиата натри и других, которые отлагаютс на поверхности технологического оборудовани и увеличивают потери растворител в узле его регенерации 2.The use of such an inhibitor can lead to the accumulation of sodium or zinc salts due to the low stability of the inhibitor at high temperatures, since the decomposition of the inhibitor proceeds with the formation of salts of organic acids, such as sodium formate and others, which deposit on the surface of the process equipment and increase the loss of solvent in its regeneration unit. 2
Целью предлагаемого изобретени вл етс (иижение потерь диолефина и растворител .The purpose of the present invention is (to reduce the loss of the diolefin and the solvent.
Поставленна цель достигаетс описьшаемым шособом разделени С4- С 5-)тлеводородных смесей, содержащих диолефины, заключающимс в том, что исходную смесь подвергают ректификации в присутствии растворител и ингибитора двуокиси тиомочевины в количестве 0,005-0,5% от веса растворител .This goal is achieved by describing the C4-C 5-) hydrotreated mixtures containing diolefins using the separation method, in that the initial mixture is subjected to distillation in the presence of a solvent and thiourea dioxide inhibitor in an amount of 0.005-0.5% by weight of the solvent.
Отличием способа вл етс использование в качестве ингибитора двуокиси тиомочевины в количестве 0,005-0,5% от веса растворител .The difference of the method is the use of thiourea dioxide as an inhibitor in the amount of 0.005-0.5% by weight of the solvent.
Claims (1)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU772536026A SU775099A1 (en) | 1977-07-26 | 1977-07-26 | Method of separating diolefin-containing c4-c5 hydrocarbon mixtures |
DD20404578A DD139336A3 (en) | 1977-07-26 | 1978-03-09 | METHOD FOR SEPARATING HYDROCARBONS MIXTURES |
BG7840277A BG31549A1 (en) | 1977-07-26 | 1978-06-30 | Method separating of hydrocarbon mixtures |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU772536026A SU775099A1 (en) | 1977-07-26 | 1977-07-26 | Method of separating diolefin-containing c4-c5 hydrocarbon mixtures |
Publications (1)
Publication Number | Publication Date |
---|---|
SU775099A1 true SU775099A1 (en) | 1980-10-30 |
Family
ID=20729819
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU772536026A SU775099A1 (en) | 1977-07-26 | 1977-07-26 | Method of separating diolefin-containing c4-c5 hydrocarbon mixtures |
Country Status (3)
Country | Link |
---|---|
BG (1) | BG31549A1 (en) |
DD (1) | DD139336A3 (en) |
SU (1) | SU775099A1 (en) |
-
1977
- 1977-07-26 SU SU772536026A patent/SU775099A1/en active
-
1978
- 1978-03-09 DD DD20404578A patent/DD139336A3/en not_active IP Right Cessation
- 1978-06-30 BG BG7840277A patent/BG31549A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
BG31549A1 (en) | 1982-02-15 |
DD139336A3 (en) | 1979-12-27 |
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