SU136346A1 - The method of purification of phenylethyl alcohol - Google Patents
The method of purification of phenylethyl alcoholInfo
- Publication number
- SU136346A1 SU136346A1 SU673399A SU673399A SU136346A1 SU 136346 A1 SU136346 A1 SU 136346A1 SU 673399 A SU673399 A SU 673399A SU 673399 A SU673399 A SU 673399A SU 136346 A1 SU136346 A1 SU 136346A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- phenylethyl alcohol
- purification
- solvents
- phenylethyl
- alcohol
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
р-фенилэтиловый спирт, получающийс из бензола и окиси этилена в присутствии хлористого алюмини , содержит иримеси дибензила, этиленхлоргидрина, фенилэтилхлорида и не вошедший в реакцию бензол .p-Phenylethyl alcohol, derived from benzene and ethylene oxide in the presence of aluminum chloride, contains irimesis of dibenzyl, ethylene chlorohydrin, phenylethyl chloride and unreacted benzene.
Производственный метод очистки очень сложен. Фенилэтиловый спирт получаетс недостаточно высокого качества, так как содержит примеси, порт щие запах парфюмерного продукта.The production cleaning method is very complicated. Phenylethyl alcohol is not of sufficiently high quality, as it contains impurities that spoil the smell of the perfume product.
Очистка фенилэтилового спирта с применением селективных растворителей , например бензола или толуола (авторское свидетельство № 94213 по классу 12о,5оз) также представл ет значительные трудности .Purification of phenylethyl alcohol with the use of selective solvents, such as benzene or toluene (Class 12 certificate of authorship No. 94213, 5 oz) also presents considerable difficulties.
В литературе имеетс указание об использовании экстракции парными растворител ми дл получени чистого фенилэтилового спирта, однако экспериментальных данных в этих источниках нет.There is an indication in the literature about the use of extraction with paired solvents to produce pure phenylethyl alcohol, but there is no experimental data from these sources.
Предложен способ очистки фенилэтилового спирта-сырца, получаемого из бензола и окиси этилена в присутствии треххлористого алюмини , от примесей дибензила и хлоридов, непрерывной противоточной экстракцией парными растворител ми, например 83%-ным метанолом и петролейным эфиром.A method is proposed for purifying raw phenylethyl alcohol obtained from benzene and ethylene oxide in the presence of aluminum trichloride, from dibenzyl and chloride impurities, by continuous countercurrent extraction with paired solvents, for example, 83% methanol and petroleum ether.
Предлагаетс следуюша схема очистки.The following cleaning scheme is proposed.
Отгонка бензола от фенилэтилового спирта-сырца; противоточна экстракци в непрерывно действующей инжекционной экстракционной колонне. В среднюю часть колонны ввод т фенилэтиловый спирт. Растворители прог1ускают противотоком, друг к другу. В качестве растворите .1ей примен ют83%-ные метанол и петролейный эфирст. кип. .Distillation of benzene from phenylethyl raw alcohol; countercurrent extraction in a continuously operating injection extraction column. Phenylethyl alcohol is introduced into the middle of the column. The solvents of the program are countercurrent to each other. 83% methanol and petroleum ether are used as solvents. kip .
Отгонка растворителей; однократна перегонка полученного продукта под вакуумом; омыление головных фракций и их перегонка.Distilling off solvents; one-time distillation of the obtained product under vacuum; saponification of the head fractions and their distillation.
NO 136346NO 136346
- 2- 2
..
63 у |;1Ь1 гйн|й|р63 y |; 1b1 min | y | p
прадставлены presented
Выход готового продукта не ниже чем при применении прин того производственного способа очистки фенилэтилового спирта-сырца.The yield of the finished product is not lower than when applying the adopted production method of purifying raw phenylethyl alcohol.
Предложенный способ существенно упрощает технологию производства , сокращает продолжительность процесса и улучшает качество фенилэтилового спирта.The proposed method significantly simplifies the production technology, shortens the process time and improves the quality of phenylethyl alcohol.
Предмет изобретени Subject invention
Способ очистки фенилэтилового спирта-сырца от дибензила и .хлоридов экстракцией парными растворител ми, отличающийс тем, что, с целью улучшени качества продукта и упрощени технологической схемы в качестве растворителей используют 83%-ный метанол и петролейный эфир.The method of purification of phenethyl alcohol-raw material from dibenzyl and chlorides by extraction with dual solvents, characterized in that, in order to improve the quality of the product and simplify the technological scheme, 83% methanol and petroleum ether are used as solvents.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU673399A SU136346A1 (en) | 1960-07-14 | 1960-07-14 | The method of purification of phenylethyl alcohol |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU673399A SU136346A1 (en) | 1960-07-14 | 1960-07-14 | The method of purification of phenylethyl alcohol |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU136346A1 true SU136346A1 (en) | 1960-11-30 |
Family
ID=48292629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU673399A SU136346A1 (en) | 1960-07-14 | 1960-07-14 | The method of purification of phenylethyl alcohol |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU136346A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4664755A (en) * | 1984-12-19 | 1987-05-12 | Haarman & Reimer Gmbh | Process for the purification of crude β-phenylethyl alcohol |
| US4705902A (en) * | 1985-10-03 | 1987-11-10 | Rohm And Haas Company | DDTR-free 1,1-bis(chlorophenyl)-2,2,2-trichloroethanol |
| EP0248954B1 (en) * | 1985-06-03 | 1992-04-01 | Rohm And Haas Company | Process for reducing the amount of ddt-related impurities in 1,1-bis(chlorophenyl)-2,2,2-trichloro-ethanol |
-
1960
- 1960-07-14 SU SU673399A patent/SU136346A1/en active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4664755A (en) * | 1984-12-19 | 1987-05-12 | Haarman & Reimer Gmbh | Process for the purification of crude β-phenylethyl alcohol |
| EP0248954B1 (en) * | 1985-06-03 | 1992-04-01 | Rohm And Haas Company | Process for reducing the amount of ddt-related impurities in 1,1-bis(chlorophenyl)-2,2,2-trichloro-ethanol |
| US4705902A (en) * | 1985-10-03 | 1987-11-10 | Rohm And Haas Company | DDTR-free 1,1-bis(chlorophenyl)-2,2,2-trichloroethanol |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1353437A (en) | Process for recovery of cyclohexanone | |
| ES337356A1 (en) | Water extractive distillation of an ethylene oxide stream containing formaldehyde | |
| GB1195648A (en) | Isoprene Purification Process | |
| ES398777A1 (en) | Process for the recovery of isoprene from mixtures containing the same | |
| SU136346A1 (en) | The method of purification of phenylethyl alcohol | |
| US2500329A (en) | Azeotropic distillation of 1-butanol from methyl nu-butyl ketone | |
| US2360685A (en) | Azeotropic distillation | |
| US3018228A (en) | Extractive distillation process | |
| ES376277A1 (en) | Ethylene dichloride purification by plural stage distillation | |
| GB995149A (en) | Production of styrene from ethylbenzene | |
| US3575818A (en) | Manufacture of absolute ethanol using pentane as azeotroping agent | |
| US2257389A (en) | Recovery of levulinic acid | |
| US2809203A (en) | Method of converting levulinic acid into alpha angelica lactone | |
| US2154930A (en) | Process for the purification of polyhydric alcohols | |
| US3481836A (en) | Process for the separation of the products derived from the hydrogenolysis of hexitols by plural stage vacuum,steam distillation at temperatures not exceeding 200 c | |
| US3352765A (en) | Extractive distillation of sulfolane with an isoparaffing hydrocarbon entrainer | |
| US2745868A (en) | Process for the production of trichloroacetonitrile | |
| US2809927A (en) | Separation of sec-butyl ether from polymeric hydrocarbons | |
| US2826619A (en) | Recovery of benzene | |
| US2373269A (en) | Dehydration of acetone | |
| US3031515A (en) | Process for purifying isoprenes | |
| GB1218224A (en) | Vinyl chloride | |
| ES421209A1 (en) | Process for separating high purity aromatic hydrocarbons from mixtures containing them | |
| GB975948A (en) | Recovery and production of cyclohexanone | |
| JPS6034932B2 (en) | Method for producing ω-alken-1-ol |