SU1315452A1 - Method for purifying pyridine - Google Patents
Method for purifying pyridine Download PDFInfo
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- SU1315452A1 SU1315452A1 SU853967819A SU3967819A SU1315452A1 SU 1315452 A1 SU1315452 A1 SU 1315452A1 SU 853967819 A SU853967819 A SU 853967819A SU 3967819 A SU3967819 A SU 3967819A SU 1315452 A1 SU1315452 A1 SU 1315452A1
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- SU
- USSR - Soviet Union
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- pyridine
- acetone
- amount
- purification
- quality
- Prior art date
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- Pyridine Compounds (AREA)
Abstract
Изобретение относитс к гетероциклическим соединени м, в частности к очистке пиридина (ПД). Повьшение качества ПД достигаетс использова-; нием ацетона в качестве селективной добавки, вз той в определенном количестве . Очистку ПД ведут ректификацией с ацетоном, вз тым в количестве 6-10 мас.%. Способ позвол ет повысить качество ПД (пропускание в УФ- области спектра повьппаетс на 1-2%). I табл. (Л со СП 4 ел юThe invention relates to heterocyclic compounds, in particular to the purification of pyridine (PD). Improving the quality of PD is achieved using; acetone as a selective additive, taken in a specific amount. Purification of PD is carried out by rectification with acetone, taken in the amount of 6-10 wt.%. The method allows to improve the quality of PD (transmission in the UV region of the spectrum is increased by 1-2%). Table I (L from SP 4 ate yu
Description
Изобретение относитс к усовершенствованному способу очистки пиридина примен емого в высокоэффективной хроматографии в качестве элюента.This invention relates to an improved method for the purification of pyridine used in high performance chromatography as eluent.
Цель изобретени - повышение качества продукта - достигаетс за сче проведени очистки ректификацией с добавкой ацетона в количестве 6-10%.The purpose of the invention — an increase in the quality of the product — is achieved by performing a purification by distillation with the addition of acetone in the amount of 6-10%.
Пример 1. Исходный пиридин в количестве 940 г (956 мл) и 60 г (76 мл) ацетона загружают в куб ректификационной колонны. Ректификацию ведут в колонне диаметром 20 мм, высотой 400 мм, заполненной насадкой 2x2x0,2 из нержавеющей стали при флегмовом числе 15. Отбирают первую фракцию, содержащую легколетучие концентрированные примеси в количестве 25%. Основна фракци - 70% - готовый продукт.Example 1. The original pyridine in the amount of 940 g (956 ml) and 60 g (76 ml) of acetone are loaded into the cube of the distillation column. The rectification is carried out in a column with a diameter of 20 mm and a height of 400 mm, filled with a stainless steel nozzle 2x2x0.2 with a reflux number 15. The first fraction containing 25% of volatile concentrated impurities is collected. The main fraction - 70% - the finished product.
П р и м е р 2. Исходньй пиридин в количестве 970 г (986 мл) и 30 г (38 мл) ацетона загружают в куб ректификационной колонны. Ректификацию ведут при флегмовом числе 15. Отбирают первую легколетучую фракцию вPRI mme R 2. Source pyridine in the amount of 970 g (986 ml) and 30 g (38 ml) of acetone is loaded into a cube of a distillation column. The rectification is carried out at a reflux ratio of 15. The first volatile fraction is collected in
Составитель И.Бочарова Редактор Н.Егорова Техред А.Кравчук Корректор А.ОбручарCompiled by I. Bocharova Editor N. Yegorov Tehred A. Kravchuk Proofreader A. Obruchar
Заказ 2314/25 Тираж 371ПодписноеOrder 2314/25 Circulation 371Subscription
ВНИИПИ Государственного комитета СССРVNIIPI USSR State Committee
по делам изобретений и открытий 113035, Москва, Ж-35, Раушска наб., д.4/5for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5
.Производственно-полиграфическое предпри тие, г.Ужгород, ул. Проектна , 4Production and printing company, Uzhgorod, st. Project, 4
2222
количестве 25%. Основна фракци - 70% - готовый продукт.the amount of 25%. The main fraction - 70% - the finished product.
П р и м е р 3. Исходньй пиридин в количестве 900 г (925 мл ; и 100 г (127 мл ) ацетона загружают в куб ректификационной колонны. Отбирают первую фракцию - предгон - в количестве 25%. Втора фракци - 70% - готовый продукт.PRI me R 3. Baseline pyridine in the amount of 900 g (925 ml; and 100 g (127 ml) of acetone are loaded into the cube of the distillation column. The first fraction is collected — the pregon is 25%. The second fraction is 70% finished product.
Качество полученного продукта приведено в таблице.The quality of the product obtained is given in the table.
Таким образом, применение очистки пиридина ректификацией с добавкой 6-10% ацетона позвол ет повысить пропускание в УФ-области спектра на 1-2%.Thus, the use of pyridine purification by distillation with the addition of 6-10% acetone makes it possible to increase the transmittance in the UV spectral region by 1-2%.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU853967819A SU1315452A1 (en) | 1985-10-23 | 1985-10-23 | Method for purifying pyridine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU853967819A SU1315452A1 (en) | 1985-10-23 | 1985-10-23 | Method for purifying pyridine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1315452A1 true SU1315452A1 (en) | 1987-06-07 |
Family
ID=21202181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU853967819A SU1315452A1 (en) | 1985-10-23 | 1985-10-23 | Method for purifying pyridine |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1315452A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5100514A (en) * | 1991-03-01 | 1992-03-31 | Lloyd Berg | Separation of pyridine from water by extractive distillation |
-
1985
- 1985-10-23 SU SU853967819A patent/SU1315452A1/en active
Non-Patent Citations (1)
| Title |
|---|
| Патент JP № 51-26358, кл. С 07 D 213/16, 1977. Повышение качества пиридиновых продуктов методом четкой ректификации. - Кокс и хими , 1977, № 12, с.29-32. * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5100514A (en) * | 1991-03-01 | 1992-03-31 | Lloyd Berg | Separation of pyridine from water by extractive distillation |
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