SU101145A1 - The method of purification of aromatic oxaldehydes containing easily dyeing amino compounds - Google Patents
The method of purification of aromatic oxaldehydes containing easily dyeing amino compoundsInfo
- Publication number
- SU101145A1 SU101145A1 SU450332A SU450332A SU101145A1 SU 101145 A1 SU101145 A1 SU 101145A1 SU 450332 A SU450332 A SU 450332A SU 450332 A SU450332 A SU 450332A SU 101145 A1 SU101145 A1 SU 101145A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- purification
- aromatic
- oxaldehydes
- amino compounds
- containing easily
- Prior art date
Links
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Предметом изобретени вл етс способ очистки ароматических оксиальдогидов , содержащих легко окра ииваюцшес аминосоединени , перегонкой под вакуумом.The subject of the invention is a process for the purification of aromatic oxalohalides containing easily colored amino compounds by distillation under vacuum.
По сравиоиию с известными подобными способами предлагаемый способ упрощает очистку ароматических оксиальдегидои, содержащих амины, и снижает цветность дисти.чл та .In comparison with known similar methods, the proposed method simplifies the purification of aromatic oxaldehyde containing amines and reduces the chromaticity of the disti.
Это дости1аетс тем. что к сырым оксиальлегидам добавл ют иезн чительное количество нелетучих в ус .|(1ви х перегонки минера.чьиых или 1)11ганических кислот.This is achieved by that. that an unsatisfactory amount of non-volatile substances in mineral oils (or 1) 11 organic acids are added to the raw oxallegides.
Прим.ер 1. К 30 с иерег;)1И10го розового ванилина добавл ют 0,1 г орто-фосфорной кислоты и под вакуумом перегон ют при температуре 125--150°. Полученный продукт в к.).1ичестве 28-29 г иодвергают водной кристаллизации с добавлением воды в соотношении 1 : 15.Approx. 1. To 30 seconds of the seed;) 1-10 of pink vanillin 0.1 g of ortho-phosphoric acid is added and distilled under vacuum at a temperature of 125-150 °. The resulting product in a.). Amount of 28-29 g and expose to aqueous crystallization with the addition of water in a ratio of 1: 15.
11 р и м е р 2. К 30 г технического розового ванилал добавл ют 0,2 г бензолсульфокислоты. После перегонки под вакуумом ванилаль криста .т.мизируют из водиоспиртовоГ) смеси.11 p m m e p 2. To 30 g of technical pink vanilal, add 0.2 g of benzenesulfonic acid. After distillation, under vacuum, vanilla crista is obtained from a water-alcohol mixture.
П р и м е р 3. Из содержаuiero амины ванплата натрн серной кис.тотой осаждают ванилин и ноете нромывки сырой продукт перегон ют иод вакуумом .PRI me R 3. Vanillin is precipitated from the vanio platinum amines with sulfuric acid, and the raw material is washed by vacuum and iodine is distilled.
П 11 с л м 1 I и 3 о б р е т е н и P 11 with l m 1 I and 3 about b ete n and
Способ очистки ароматических оксиальдегидов, содержани1х легко окрап1ива101пиес аминосоединетш . путем перегонки под вакуумом, о тл и ч а ю 1ц и и с тем, что. с целью снижени цветности дистилл та, к сырым оксиальдегидам добавл ют незначительное количество нелетучих в услови х перегонки минеральных или органических кислот .The method of purification of aromatic hydroxyaldehydes, is easy to color with a mixture of amino compounds. by distillation under vacuum, about tl and h ay 1ts and with the fact that. in order to reduce the color of the distillate, a small amount of non-volatile mineral or organic acids is added to the crude hydroxyaldehydes.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU450332A SU101145A1 (en) | 1954-12-03 | 1954-12-03 | The method of purification of aromatic oxaldehydes containing easily dyeing amino compounds |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU450332A SU101145A1 (en) | 1954-12-03 | 1954-12-03 | The method of purification of aromatic oxaldehydes containing easily dyeing amino compounds |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU864055466A Addition SU1390793A2 (en) | 1986-02-05 | 1986-02-05 | Pulse former |
Publications (1)
Publication Number | Publication Date |
---|---|
SU101145A1 true SU101145A1 (en) | 1955-11-30 |
Family
ID=48375037
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU450332A SU101145A1 (en) | 1954-12-03 | 1954-12-03 | The method of purification of aromatic oxaldehydes containing easily dyeing amino compounds |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU101145A1 (en) |
-
1954
- 1954-12-03 SU SU450332A patent/SU101145A1/en active
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