SU483388A1 - The method of separation of aromatic hydrocarbons from mixtures with non-aromatic hydrocarbons - Google Patents
The method of separation of aromatic hydrocarbons from mixtures with non-aromatic hydrocarbonsInfo
- Publication number
- SU483388A1 SU483388A1 SU1891678A SU1891678A SU483388A1 SU 483388 A1 SU483388 A1 SU 483388A1 SU 1891678 A SU1891678 A SU 1891678A SU 1891678 A SU1891678 A SU 1891678A SU 483388 A1 SU483388 A1 SU 483388A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- aromatic hydrocarbons
- mixtures
- toluene
- separation
- dimethylfuroxane
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
При необходимости получени более концегп-рированных экстрактов могут быть использованы смеси диметилфуроксана с растворител ми , обладающими пониженной раствор ющей способпостью, нап1ример с диэтиленгликолем , сульфоланом.If necessary, more concentrated extracts can be used in mixtures of dimethylfuroxane with solvents with reduced dissolving capacity, such as diethylene glycol, sulfolane.
Как видно из данных таблицы, при экстракции диметилфуроксаном достигаетс очень высокие степень извлечени толкуола (77%) и коэффициент распределени . При нспользовании смесей диметилфуроксана с растворител ми, обладающими пониженной раствор ющей способностью, получают экстракты , близкие но концентрации к экстрактам , получаемым на чистом сульфолане и диэтиленгликоле , но при значительно более высокой степени извлечени ароматического углеводорода.As can be seen from the table, with extraction with dimethylfuroxane, a very high degree of extraction of toluene (77%) and a distribution coefficient are achieved. When using mixtures of dimethylfuroxane with solvents with reduced dissolving power, extracts are obtained which are close to the concentration obtained on pure sulfolane and diethylene glycol, but with a much higher degree of extraction of the aromatic hydrocarbon.
Регенераци диметилфуроксаиа может проводитьс обычным методом ректификации или перегонки ароматических углеводородов с вод ным паром.Regeneration of dimethyl fluoroxia can be carried out by the usual method of distillation or distillation of steam aromatic hydrocarbons.
Диметилфуроксан - нейтральное, термически стабильное соединение, не вызывающее коррозии оборудовани . Применение смещанных растворителей на основе диметилфуроксана не требует принципиальных изменений технологической схемы.Dimethylfuroxane is a neutral, thermally stable compound that does not corrode equipment. The use of displaced solvents based on dimethylfuroxane does not require fundamental changes in the technological scheme.
Пример. В г0р|Метичную емкость с магнитной мешалкой внос т 4,598 г диметилфуроксана и 2,286 г сырь , содержащего 35 вес. % толуола и 65 вес. % -гептана. Смесь интенсивно перемещивают в течение 30 мин при 20° С. После необходимого отстаивани экстрактную фазу отдел ют щприцем от рафинатной фазы. Перва фаза весит 5,553 г, втора - 1,231 г. Состав полученных фаз анализируют хроматографически. Состап экстрактной фазы (в %): гептан 7„2; толуол 11,1; растворитель 81,7. Рафинатна фаза содержит (в %): гептан 81,5; толуол 14,0; растворитель 4,5. Отсюда состав экстракта (в %): гептан 39,3; толуол 60,7; состав рафииата (в %): гептап 85,3; толуол 14,7. Коэффициент распределени толуола 0,79.Example. 4.598 g of dimethylfuroxane and 2.286 g of raw material containing 35 wt. % toluene and 65 wt. % Heptane. The mixture was intensively transferred for 30 minutes at 20 ° C. After the necessary settling, the extract phase was separated by a syringe from the raffinate phase. The first phase weighs 5.553 g, the second - 1.231 g. The composition of the phases obtained is analyzed chromatographically. Sostap extract phase (%): heptane 7, 2; toluene 11.1; solvent 81.7. The raffinate phase contains (in%): heptane 81.5; toluene 14.0; solvent 4,5. Hence the composition of the extract (in%): heptane 39.3; toluene 60.7; the composition of rafiata (%): heptap 85.3; toluene 14.7. The distribution coefficient of toluene is 0.79.
Степень извлечени толуола при одноступенчатой экстракции 77%.The degree of extraction of toluene with a single-stage extraction of 77%.
Предмет изобретени Subject invention
Способ выделени ароматических углеводородов из смесей с неароматическими углеводородами путем жидкостной экстракции в присутствии раздел ющего агента, отличающийс там, что, с целью повыщеии эффективности процесса, в качестве раздел ющего агента используют диметилфуроксан или его смесь с растворител ми, обладающими пониженной раствор ющей способностью.A method for separating aromatic hydrocarbons from mixtures with non-aromatic hydrocarbons by solvent extraction in the presence of a separating agent, which is different from there, in order to increase the efficiency of the process, dimethyl furoxane or its mixture with solvents with reduced dissolving power is used as separating agent.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1891678A SU483388A1 (en) | 1973-03-13 | 1973-03-13 | The method of separation of aromatic hydrocarbons from mixtures with non-aromatic hydrocarbons |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1891678A SU483388A1 (en) | 1973-03-13 | 1973-03-13 | The method of separation of aromatic hydrocarbons from mixtures with non-aromatic hydrocarbons |
Publications (1)
Publication Number | Publication Date |
---|---|
SU483388A1 true SU483388A1 (en) | 1975-09-05 |
Family
ID=20544925
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU1891678A SU483388A1 (en) | 1973-03-13 | 1973-03-13 | The method of separation of aromatic hydrocarbons from mixtures with non-aromatic hydrocarbons |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU483388A1 (en) |
-
1973
- 1973-03-13 SU SU1891678A patent/SU483388A1/en active
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1410773A (en) | Hydrocarbon separation process | |
US3492222A (en) | Solvent recovery process | |
US3415739A (en) | Recovery of aromatics by extraction or extractive distillation with solvent mixturesof n-methyl pyrrolidone and diglycol amine | |
GB948180A (en) | Process for the separation of an organic mixture containing hydrocarbons by means of extractive distillation | |
GB999804A (en) | Process for the separation of a mixture by means of liquid-liquid extraction | |
US3816302A (en) | Process for the recovery of aromatic hydrocarbons from mixtures containing the same | |
US3466346A (en) | Method for aromatic hydrocarbon recovery | |
SU483388A1 (en) | The method of separation of aromatic hydrocarbons from mixtures with non-aromatic hydrocarbons | |
US2463479A (en) | Preparation of aromatic solvents | |
US3981798A (en) | Liquid/liquid extraction using certain ethers and esters | |
US2496207A (en) | Azeotropic distillation of hydrocarbons from sulfolanes | |
US2184928A (en) | Process for the separation of thiophenols from alkyl phenols | |
GB1164372A (en) | Method of Separating Aromatic Hydrocarbons from Mixtures Containing Them. | |
ES318437A1 (en) | Procedure for obtaining aromatic hydrocarbons from mixtures of aromatic hydrocarbons and non-aromatic hydrocarbons by extraction with solvent. (Machine-translation by Google Translate, not legally binding) | |
US2288853A (en) | Hydrocarbon oil treatment | |
SU681035A1 (en) | Extractant for isolating aromatic hydrocarbons from mixtures containing saturated hydrocarbons | |
SU464126A3 (en) | The method of separation of aromatic hydrocarbons | |
GB865698A (en) | Process for the extraction and recovery of aromatic hydrocarbons from a liquid hydrocarbon mixture | |
SU426989A1 (en) | METHOD OF ISOLATION OF AROMATIC HYDROCARBONS | |
US3560374A (en) | Aromatic extraction process | |
SU463658A1 (en) | The method of separation of aromatic compounds | |
GB1173378A (en) | Liquid-Liquid Extraction of Aromatic Hydrocarbons from Petroleum Fractions | |
SU455080A1 (en) | The method of separation of aromatic hydrocarbons from mixtures with non-aromatic hydrocarbons | |
SU747846A1 (en) | Method of isolating aromatic hydrocarbons from their mixtures with nonaromatics | |
SU833938A1 (en) | Method of isolating aromatic hydrocarbons from their mixtures with non-aromatics |