SU52086A1 - Method for producing methacrylic acid - Google Patents
Method for producing methacrylic acidInfo
- Publication number
- SU52086A1 SU52086A1 SU??-3704A SU52086DA SU52086A1 SU 52086 A1 SU52086 A1 SU 52086A1 SU 52086D A SU52086D A SU 52086DA SU 52086 A1 SU52086 A1 SU 52086A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- methacrylic acid
- producing methacrylic
- acids
- producing
- mixture
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Получение метакриловой кислоты из монохлоризомасл ных кислот в литературе не описано. Лвтором найден каталитический способ отщеплени хлористого водорода от а- и р-хлоризомасл ных кислот. Сущность способа заключаетс в том, что смесь а- и р-хлоризомасл ных кислот пропускают над активированным животным или растительным углем под уменьшенным давлением в присутствии вод ного пара при температуре 150-300°. Полученный продукт перегон ют при атмосферном давлении.Production of methacrylic acid from monochloro-butyric acids is not described in the literature. First of all, a catalytic method was found for splitting off hydrogen chloride from a- and p-chloroisobutyric acids. The essence of the method is that a mixture of a- and p-chloro-butyric acids is passed over activated animal or vegetable charcoal under reduced pressure in the presence of water vapor at a temperature of 150-300 °. The resulting product is distilled at atmospheric pressure.
Пример. Смесь а- и 3-хлоризомасл ных кислот пропускают над активированным растительным углем при температуре 200-250° под уменьшенным давлением. Выход метакриловой кислоты около 50% теории.Example. A mixture of a- and 3-chloro-butyric acids is passed over activated vegetable carbon at a temperature of 200-250 ° under reduced pressure. The yield of methacrylic acid is about 50% of theory.
Предмет изобретени .The subject matter of the invention.
Способ получени метакриловой кислоты , отличающийс тем, что смесь а- и 8-хлоризомасл ных кислот пропускают в вакууме над активированным углем при температуре 150-300 с добавлением или без добавлени паров воды. Тип. ,ПечатныйТруд.Зак. 111-500A method of producing methacrylic acid, characterized in that a mixture of a- and 8-chloroisobutyric acids is passed under vacuum over activated carbon at a temperature of 150-300, with or without the addition of water vapor. Type of. , PrintedTrud.Zak. 111-500
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU52086T | 1937-01-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU52086A1 true SU52086A1 (en) | 1937-11-30 |
Family
ID=52285746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU??-3704A SU52086A1 (en) | 1937-01-23 | 1937-01-23 | Method for producing methacrylic acid |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU52086A1 (en) |
-
1937
- 1937-01-23 SU SU??-3704A patent/SU52086A1/en active
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