SU394347A1 - METHOD OF ISOLATION OF AROMATIC HYDROCARBONS OF SHEETS OF MIXTURES WITH NONAROMATIC HYDROCARBONS - Google Patents
METHOD OF ISOLATION OF AROMATIC HYDROCARBONS OF SHEETS OF MIXTURES WITH NONAROMATIC HYDROCARBONSInfo
- Publication number
- SU394347A1 SU394347A1 SU1715510A SU1715510A SU394347A1 SU 394347 A1 SU394347 A1 SU 394347A1 SU 1715510 A SU1715510 A SU 1715510A SU 1715510 A SU1715510 A SU 1715510A SU 394347 A1 SU394347 A1 SU 394347A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- hydrocarbons
- mixtures
- isolation
- sheets
- aromatic hydrocarbons
- Prior art date
Links
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Изобретение относитс к области извлечени ароматических углеводородов из смесей с неароматическими углеводородами.This invention relates to the field of extraction of aromatic hydrocarbons from mixtures with non-aromatic hydrocarbons.
Известен способ экстракции ароматических углеводородов с нрименением сульфолана в качестве селективного растворител дл выделени ароматических углеводородов.A known method for the extraction of aromatic hydrocarbons with the use of sulfolane as a selective solvent for the separation of aromatic hydrocarbons.
Однако, применение сульфолана в качестве селективного растворител не позвол ет проводить процесс экстракции с максимальной степенью извлечени и высоким коэффициентом распределени .However, the use of sulfolane as a selective solvent does not allow for the extraction process with a maximum degree of extraction and a high distribution coefficient.
С целью повышени степени извлечени целевого продукта предлагают в качестве селективного растворител примен ть а-тетрагидрофурфурил-р-оксипропионитрилIn order to increase the recovery rate of the target product, α-tetrahydrofurfuryl-p-oxypropionitrile is proposed as a selective solvent.
JCHoOCHoCHoCNJCHoOCHoCHoCN
DD
или его смесь с растворителем, обладающим пониженной раствор ющей способностью, такими как р, р -оксидипропионитрил, диэтиленгликоль , этиленгликоль, сульфолан, вода и т. п.or its mixture with a solvent having a lower dissolving power, such as p, p-oxydipropionitrile, diethylene glycol, ethylene glycol, sulfolane, water, etc.
Предлагают использовать смесь а-тетрагидрофурфурил-р-оксипропионитрила и 6 вес. % воды, пли а-тетрагидрофурфурил-р-оксипроипонитрила и 15,7 вес. % этиленгликол , или с/.-тетрагидрофурфурил-|3-оксипропионитрила и 37,7 вес. % сульфолана, или а-тетрагидрофури 48,8 вес. %It is proposed to use a mixture of a-tetrahydrofurfuryl-p-hydroxypropionitrile and 6 wt. % water, pl a-tetrahydrofurfuryl-p-hydroxypropionitrile and 15.7 wt. % ethylene glycol, or s /. - tetrahydrofurfuryl- | 3-hydroxypropionitrile and 37.7 wt. % sulfolane, or a-tetrahydrofuri 48.8 weight. %
фурил-р-оксипропионитрила ji, р1-оксидипропионитрила.furyl-p-hydroxypropionitrile ji, p1-oxypropionitrile.
а-Тетрагидрофурфурил-|3-оксипропнонитрил представл ет собой бесцветную прозрачную жидкость d 1,052 /ZD 1,4534.a-Tetrahydrofurfuryl- 3-hydroxypropnonitrile is a colorless transparent liquid d 1,052 / ZD 1,4534.
Температура кипени его равна 143°С при 15 мм рт. ст.Its boiling point is 143 ° С at 15 mm Hg. Art.
Получают его конденсацией тетрагидрофурфурнлового спирта с акрилонитрилом.It is obtained by condensation of tetrahydrofurfurnyl alcohol with acrylonitrile.
Опыты по экстракции провод т на искусственной смеси толуол - гептан, содержащий 35 вес. % толуола, при соотнощении растворитель : сырье - 2:1.Extraction experiments were carried out on an artificial toluene-heptane mixture containing 35 wt. % toluene, with a ratio of solvent: raw materials - 2: 1.
В таблице приведены результаты опытов однократного экстрагировани а-тетрагидрофурфурилокси-р-пропионптрилом , его смес ми с другими растворптел ми, а также, дл сравнени , с известными растворптел ми.The table shows the results of a single extraction of α-tetrahydrofurfuryloxy-p-propionptril, its mixtures with other solvents, as well as, for comparison, with known solvents.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1715510A SU394347A1 (en) | 1971-11-15 | 1971-11-15 | METHOD OF ISOLATION OF AROMATIC HYDROCARBONS OF SHEETS OF MIXTURES WITH NONAROMATIC HYDROCARBONS |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1715510A SU394347A1 (en) | 1971-11-15 | 1971-11-15 | METHOD OF ISOLATION OF AROMATIC HYDROCARBONS OF SHEETS OF MIXTURES WITH NONAROMATIC HYDROCARBONS |
Publications (1)
Publication Number | Publication Date |
---|---|
SU394347A1 true SU394347A1 (en) | 1973-08-22 |
Family
ID=20493333
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU1715510A SU394347A1 (en) | 1971-11-15 | 1971-11-15 | METHOD OF ISOLATION OF AROMATIC HYDROCARBONS OF SHEETS OF MIXTURES WITH NONAROMATIC HYDROCARBONS |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU394347A1 (en) |
-
1971
- 1971-11-15 SU SU1715510A patent/SU394347A1/en active
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