SU772080A1 - Method of separating chlorobenzene from their mixtures - Google Patents
Method of separating chlorobenzene from their mixtures Download PDFInfo
- Publication number
- SU772080A1 SU772080A1 SU2660188A SU2660188A SU772080A1 SU 772080 A1 SU772080 A1 SU 772080A1 SU 2660188 A SU2660188 A SU 2660188A SU 2660188 A SU2660188 A SU 2660188A SU 772080 A1 SU772080 A1 SU 772080A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- aliphatic
- mixtures
- chlorobenzene
- separating
- distillation
- Prior art date
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Epoxy Compounds (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Description
Желательно в качестве алифатического апоксисоединени Иопользовать эпонсидную смолу .или глиадидол, а в качестве алифатического амина - Гексаметилентетрамин (уротрогеин).Preferably as an aliphatic apoxy compound. Use an epsid resin or gliadidol, and as an aliphatic amine Hexamethylenetetramine (urotrogein).
Примен ют эиок Сид1ную .смолу марок ЭД-16, ЭД-20, имеющую коэффициент полнконденсащиИ 0,48-0,7 и 0,17-0,31 дл ЭД16 и ЭД-,20 cOiOTBeTCTiBieHHo; мол. вес. 480- 540 и 390-480 соответютненно, содержание Э1ПОКСИЯНЫХ прупп 16-18 и 20-22% соответственно .Sodium hydroxide resin is used for grades ED-16, ED-20, having a coefficient of full condensation of 0.48-0.7 and 0.17-0.31 for ED16 and ED- 20 cOiOTBeTCTiBieHHo; a pier weight. 480-540 and 390-480, respectively, the content of E1POXY groups 16-18 and 20-22%, respectively.
При практическом осуществлении способа ректификацию хлор бензола провод т в колоине с высотой насадки 40 см при атмосферком давлении. В куб колонны загружают 500 мл исходной хлор1 рова1Нной массы, не содержащей бензола, и 5 г стальных пластилок марки СТ-3. Температура куба 135-140° С. Изм1ер ют показатель кислотности (рН водной выт жки) дистиллата и кзбовой жидкости по окончании ректификации .In the practical implementation of the method, rectification of chlorine benzene is carried out in a coloin with a nozzle height of 40 cm at atmospheric pressure. 500 ml of the initial chlorine-free mass that does not contain benzene and 5 g of steel plasts of the CT-3 grade are loaded into the cube of the column. The temperature of the cube is 135-140 ° C. The acidity index (pH of the aqueous extract) of the distillate and the cbd liquid is measured at the end of the rectification.
Осветление-отгонку полихлоридов бензола провод т из круглодон«ой колбы при атмосферном давлении, температуре 180- 185° С в присутствии стальных иластинок марки СТ-3. В куб ,за1гружают 500 мл полихлоридов 5 г стальных пластинок. Измер ют показатель кислотности (рН водной выт жки) дистиллата и кубовой жидкости по окончанни осветлени .Clarification-distillation of benzene polychlorides is carried out from a round-bottom flask at atmospheric pressure, at a temperature of 180-185 ° C in the presence of steel CT-3 grades. Into the cube, 500 ml of polychlorides are loaded with 5 g of steel plates. The acidity index (pH of the aqueous extract) of the distillate and the bottom liquid is measured at the end of the clarification.
После выделени кристаллизацией /г-дихлорбензола из осветленных полихлорндов маточ.ный раствор подвергают ректификации из колонны с высотой насадки 4Р см с целью выделени о-дихлорбензола. В куб КОЛО1ННЫ загружают 500 мл маточного раствора и 5 г стальных пластинок марки Ст-3. Измер ют показатель кислотности (рН водной выт жки) дистиллата и кубовой жидкости по окончаниИ ректификации.After crystallization of g-dichlorobenzene from clarified polychlorindes, the uterine solution is subjected to rectification from a column with a 4P cm packing height to isolate o-dichlorobenzene. In the cube KOLO1NNI load 500 ml of stock solution and 5 g of steel plates brand St-3. The acidity index (pH of the aqueous extract) of the distillate and the bottom liquid is measured at the end of the rectification.
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Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU2660188A SU772080A1 (en) | 1978-09-06 | 1978-09-06 | Method of separating chlorobenzene from their mixtures |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU2660188A SU772080A1 (en) | 1978-09-06 | 1978-09-06 | Method of separating chlorobenzene from their mixtures |
Publications (1)
Publication Number | Publication Date |
---|---|
SU772080A1 true SU772080A1 (en) | 1981-12-30 |
Family
ID=20783607
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU2660188A SU772080A1 (en) | 1978-09-06 | 1978-09-06 | Method of separating chlorobenzene from their mixtures |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU772080A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5152875A (en) * | 1990-04-10 | 1992-10-06 | Hoechst Aktiengesellschaft | Separation of m- and p-dichlorobenzene |
US5273627A (en) * | 1988-11-24 | 1993-12-28 | Bayer Aktiengesellschaft | Process for stripping and distilling mixtures containing alkylaromatics chlorinated in the side chain |
-
1978
- 1978-09-06 SU SU2660188A patent/SU772080A1/en active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5273627A (en) * | 1988-11-24 | 1993-12-28 | Bayer Aktiengesellschaft | Process for stripping and distilling mixtures containing alkylaromatics chlorinated in the side chain |
US5152875A (en) * | 1990-04-10 | 1992-10-06 | Hoechst Aktiengesellschaft | Separation of m- and p-dichlorobenzene |
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