CS274899B2 - Method of technical n-butoxymethylacrylamide or n-isobutoxymethylacrylamide production - Google Patents
Method of technical n-butoxymethylacrylamide or n-isobutoxymethylacrylamide productionInfo
- Publication number
- CS274899B2 CS274899B2 CS746988A CS746988A CS274899B2 CS 274899 B2 CS274899 B2 CS 274899B2 CS 746988 A CS746988 A CS 746988A CS 746988 A CS746988 A CS 746988A CS 274899 B2 CS274899 B2 CS 274899B2
- Authority
- CS
- Czechoslovakia
- Prior art keywords
- alcohol
- percent
- temperature
- per
- etherification
- Prior art date
Links
Abstract
The solution concerns a method of preparation of technical N-butoxymethylacryamide or N-isobutoxymethylacrylamide from solution of relative N-hydroxymethyl derivatives in corresponding alcohol by etherification by the same alcohol. The molar surplus of the alcohol to the initial amide is selected within range of 1 to 2 moles, where a part of the alcohol (0.2 to 1.0 mol) is added to the reactor in the course of etherification at simultaneous removal of azeotropic mixture of alcohol-water. The speed of the removal of the azeotrope and the temperature of the reaction mixture are controlled by gradual reduction of pressure in the reactor so that the temperature of the content of the rector would not exceed 90 degrees C and the temperature of the heating medium would not exceed 115 degrees C. After refining of the obtained crude etherificate by washing and subsequent vacuum distillation of separated organic phase we obtain final product containing more than 85 percent by weight of the main component. The yield of the whole process ranges after recalculation per 100 percent of the product between 80 to 85 percent theory per acryl amide and 75 to 82 percent per formaldehyde introduced in the first reaction stage, which is the production of solutions of N-hydroxyalkyl derivatives in the selected alcohol
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CS887469A CS746988A2 (en) | 1988-11-15 | 1988-11-15 | Method of technical n-butoxymethylacrylamide or n-isobutoxymethylacrylamide production |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CS887469A CS746988A2 (en) | 1988-11-15 | 1988-11-15 | Method of technical n-butoxymethylacrylamide or n-isobutoxymethylacrylamide production |
Publications (2)
Publication Number | Publication Date |
---|---|
CS274899B2 true CS274899B2 (en) | 1991-12-17 |
CS746988A2 CS746988A2 (en) | 1991-12-17 |
Family
ID=5423886
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CS887469A CS746988A2 (en) | 1988-11-15 | 1988-11-15 | Method of technical n-butoxymethylacrylamide or n-isobutoxymethylacrylamide production |
Country Status (1)
Country | Link |
---|---|
CS (1) | CS746988A2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114292206A (en) * | 2021-11-26 | 2022-04-08 | 浙江鑫甬生物化工股份有限公司 | Synthesis and purification method of high-purity N-isobutoxy methacrylamide (IBMA) |
CN114315624A (en) * | 2021-11-26 | 2022-04-12 | 浙江鑫甬生物化工股份有限公司 | Synthesis and purification method of high-purity N-N-butoxy methacrylamide (NBMA) |
-
1988
- 1988-11-15 CS CS887469A patent/CS746988A2/en unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114292206A (en) * | 2021-11-26 | 2022-04-08 | 浙江鑫甬生物化工股份有限公司 | Synthesis and purification method of high-purity N-isobutoxy methacrylamide (IBMA) |
CN114315624A (en) * | 2021-11-26 | 2022-04-12 | 浙江鑫甬生物化工股份有限公司 | Synthesis and purification method of high-purity N-N-butoxy methacrylamide (NBMA) |
Also Published As
Publication number | Publication date |
---|---|
CS746988A2 (en) | 1991-12-17 |
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IF00 | In force as of 2000-06-30 in czech republic |