SU67945A1 - The method of producing acetaldehyde - Google Patents
The method of producing acetaldehydeInfo
- Publication number
- SU67945A1 SU67945A1 SU80846A SU80846A SU67945A1 SU 67945 A1 SU67945 A1 SU 67945A1 SU 80846 A SU80846 A SU 80846A SU 80846 A SU80846 A SU 80846A SU 67945 A1 SU67945 A1 SU 67945A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- acetaldehyde
- producing acetaldehyde
- ether
- weight
- water
- Prior art date
Links
- IKHGUXGNUITLKF-UHFFFAOYSA-N acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 title description 12
- RTZKZFJDLAIYFH-UHFFFAOYSA-N diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 6
- 150000001298 alcohols Chemical class 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 150000002170 ethers Chemical class 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- -1 vinyl butyl ester Chemical class 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 238000011068 load Methods 0.000 description 2
- 238000007127 saponification reaction Methods 0.000 description 2
- UZKWTJUDCOPSNM-UHFFFAOYSA-N 1-ethenoxybutane Chemical compound CCCCOC=C UZKWTJUDCOPSNM-UHFFFAOYSA-N 0.000 description 1
- 229940088597 Hormone Drugs 0.000 description 1
- 241000152160 Ira Species 0.000 description 1
- 150000001241 acetals Chemical class 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000003197 catalytic Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 239000005556 hormone Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000004941 influx Effects 0.000 description 1
- 125000001972 isopentyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 230000000379 polymerizing Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 150000003460 sulfonic acids Chemical class 0.000 description 1
- QYKIQEUNHZKYBP-UHFFFAOYSA-N vinyl ether Chemical compound C=COC=C QYKIQEUNHZKYBP-UHFFFAOYSA-N 0.000 description 1
Description
Оцубликовано в Шллетене изобрвсеыий Posted in Shlettle izobrviyy
Известен способ ацефальдегида гидролизом простых вшшловых эфиров.The known method of acephaldehyde hydrolysis of common ethers.
в случае опылени простых вшшловых эфиров высших спиртов (бутилового , изоамилового и др.) водным раствором серной кислоты возникает некоторые затруднени вследствие весьма ограни енной растворимости спиртов . в воде, в результате чего процесс омылени идет по сравнению с низшими спиртами, например метиловым, с меньшей скоростью.In the case of polluting simple ethers of higher alcohols (butyl, isoamyl, etc.) with an aqueous solution of sulfuric acid, some difficulties arise due to the very limited solubility of the alcohols. in water, as a result of which the saponification process takes place compared to lower alcohols, for example methyl, at a slower rate.
Кроме того, серна кислота оказывает конденсирующее действие на образующийс ацетальдегид и нар ду с ацетальдегидом получаютс диадкилацатали .In addition, sulfuric acid has a condensing effect on the acetaldehyde that is formed and, along with acetaldehyde, diacidaceae are obtained.
Учитыва эти трудности при омылении щ)остых вшшловых эфиров высших спиртов, было исследовано каталитическое действие р да ранее не примен вшихс дл этого катализаторов, которые, с одной стороны, не оказывают полимеризующего ,и-конденсирующего действи на ацетальдегид и, с другой стороны , вл ютс хорошгаш эцульгаторами.Taking into account these difficulties in the saponification of the residual ethers of higher alcohols, the catalytic effect of a number of previously unused catalysts, which, on the one hand, do not have a polymerizing and condensing effect on acetaldehyde and, on the other hand, have been studied, has been investigated. well hormone extractors.
Найдено, что активными катализаторами дл реакции овлыленил винилбутилового эфира вл ютс органические сульфокислоты ароматического, например на1)талиновые, или алифатического р да, например нафтеновые, в виде контакта Петрова. № 2 за 1947 г.It has been found that the active catalysts for the ovolylenyl vinyl butyl ester reaction are aromatic organic sulfonic acids, e.g. 1) taline, or aliphatic, e.g. naphthenic, in the form of a Petrov contact. Number 2 for 1947
в их присутствии, в количестве 0,5-1,0; по отношению н эфиру, а,ш ление протекает количественно в однородной среде без образовани в качестве побочных продуктов ацеталей.in their presence, in the amount of 0.5-1.0; in relation to n ether, a, cleansing proceeds quantitatively in a homogeneous medium without the formation of acetals as by-products.
Осуществление процесса оиылеиин о ii|jHUbHeHHdu указанных катад;1 затирии ;;tj;.d зываетс в примерах.The implementation of the iileyin process on ii | jHUbHeHHdu of these katads; 1 zatiria ;; tj; .d is described in the examples.
Пример I. В водный раствор контакта Петрова (Г вес,ч. раствора на 27 вес.ч. воды), нагретый до 70-80 С, приливаетс при знгршчном размешивании винилбутиловый эфир (100 вес.ч.).Example I. In an aqueous solution of Petrov's contact (D weight, part of solution per 27 parts by weight of water) heated to 70-80 ° C, vinyl butyl ether (100 parts by weight) is added by stirring under stirring.
Загрузка ведетс равномерно в течение 45-50 мин. После загрузки, при той же TeMnepaiype и не прекраща размешивани , даетс п -Г ыи утна выдержка. Образующийс во врем приливани а етапьдегид .ч8т-сл в ус лови х, обеспечивающих возаожно более полное освобожденке его от пар:;& Э(|)ира, спирта и воды.The load is kept evenly for 45-50 minutes. After loading, with the same TeMnepaiype and without stopping the stirring, n-m and whole extract is given. Formed during the influx of a .degid .ch8t-cl under conditions that provide a more complete release from the steam: & O (|) ira, alcohol and water.
В лабораторных услови х, гфи охлаждении паров a;ib4ariiiia в oJратном холо.дильнике до 30 С, В приемник переходит 42 вес.ч. (53 ) 95 -ного ацетальдегида, т.е. 90 от теоретического. Проадгкт содержит в ка честве примеси эфир, бутаиол и во.ду.Under laboratory conditions, the vapor cooling of a; ib4ariiiia vapors in a single cold cooler is up to 30 ° C, and the receiver transfers to 42 parts by weight. (53) 95th acetaldehyde, i.e. 90 from the theoretical. The process contains ether, butaiol and water as an impurity.
При к е р 2. Процесс выполн етс в услови х примера 1 в прису- стви 0 -нафталинсульфокислоты в количестве Ifc по отношению к эфиру Концентраци отгон ющегос адетальдетида достигает при этом 98,4,When kerp 2. The process is carried out under the conditions of example 1 in the presence of 0-naphthalenesulfonic acid in the amount of Ifc with respect to the ether. The concentration of the distilled adetaldethide reaches thus 98.4,
- Л: 679i 5- L: 679i 5
ПРЕЛ№Т ИЭОБРЕТИИШPREL№T IEOBRETIISH
Способ получени ацетальдегида гидролизом простых виниловых эфир высших спиртов, отличающийс тем, что процесс ведут в присутствии жирных или ароматических сульфо1сислот.A method of producing acetaldehyde by hydrolysis of simple vinyl ether of higher alcohols, characterized in that the process is carried out in the presence of fatty or aromatic sulphonic acids.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU67945A1 true SU67945A1 (en) | 1947-02-28 |
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