SU168281A1 - METHOD OF OBTAINING GLYCOLAL ALDEHYDE - Google Patents
METHOD OF OBTAINING GLYCOLAL ALDEHYDEInfo
- Publication number
- SU168281A1 SU168281A1 SU784595A SU784595A SU168281A1 SU 168281 A1 SU168281 A1 SU 168281A1 SU 784595 A SU784595 A SU 784595A SU 784595 A SU784595 A SU 784595A SU 168281 A1 SU168281 A1 SU 168281A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- glycolal
- aldehyde
- obtaining
- ethylene glycol
- glycolaldehyde
- Prior art date
Links
- 238000000034 method Methods 0.000 title description 2
- 150000001299 aldehydes Chemical class 0.000 title 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 18
- WGCNASOHLSPBMP-UHFFFAOYSA-N Glycolaldehyde Chemical compound OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 10
- 239000003054 catalyst Substances 0.000 description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- GXDVEXJTVGRLNW-UHFFFAOYSA-N [Cr].[Cu] Chemical compound [Cr].[Cu] GXDVEXJTVGRLNW-UHFFFAOYSA-N 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 125000003172 aldehyde group Chemical group 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000006356 dehydrogenation reaction Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
Description
Гликолевый альдегид интересен как исходное соединение дл получени полимеров со свободными оксигруппами.Glycolaldehyde is interesting as a starting compound for the preparation of polymers with free hydroxy groups.
Известна попытка получить гликолевый альдегид дегидрированием этиленгликол на медном катализаторе. Но удалось получить лишь сложные циклические продукты, не содержащие альдегидных групп.A known attempt to obtain glycolaldehyde by dehydrogenating ethylene glycol on a copper catalyst. But managed to get only complex cyclic products that do not contain aldehyde groups.
Дл достижени положительного результата предлагаетс проводить дегидрирование этиленгликол на меднохромовом катализаторе при 300-400°С. При пропускании паров водного раствора этиленгликол в смеси с водородом над меднохромовым катализатором при времени контакта 12-14 сек образуетс гликолевый альдегид.To achieve a positive result, it is proposed to conduct ethylene glycol dehydrogenation on a copper-chromium catalyst at 300-400 ° C. By passing an aqueous solution of ethylene glycol mixed with hydrogen over a copper-chromium catalyst, glycolaldehyde is formed at a contact time of 12-14 seconds.
Пример.Example.
Пары 12)/о-ного водного раствора этиленгликол в смеси с водородом, подаваемым со скоростью 12 л/час, поступали в трубчатый реактор при температуре 360°С. Врем контакта 13,5 сек. Объем катализатора 20 мл. Превращение в гликолевый альдегид GlVoПредмет изобретени A pair of 12) / o-th aqueous solution of ethylene glycol in a mixture with hydrogen supplied at a rate of 12 l / h, entered the tubular reactor at a temperature of 360 ° C. Contact time 13.5 seconds. Volume of catalyst 20 ml. Conversion to glycolaldehyde GlVo The subject of the invention
Способ получени гликолевого альдегида дегидрированием этиленгликол с применени ем катализатора, отличающийс тем, что де гидрированию подвергают этиленгликоль ь смеси с водородом и вод ным паром на меднохромовом катализаторе при температуре 300-400°С.A method of producing glycolaldehyde by dehydrogenating ethylene glycol using a catalyst, characterized in that the ethylene glycol mixtures with hydrogen and steam are dehydrogenated on a copper-chromium catalyst at a temperature of 300-400 ° C.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU168281A1 true SU168281A1 (en) |
Family
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5026922A (en) * | 1988-12-27 | 1991-06-25 | Research Association For Utilization Of Light Oil | Process for preparing glycol aldehyde |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5026922A (en) * | 1988-12-27 | 1991-06-25 | Research Association For Utilization Of Light Oil | Process for preparing glycol aldehyde |
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