JPS612055B2 - - Google Patents
Info
- Publication number
- JPS612055B2 JPS612055B2 JP2039878A JP2039878A JPS612055B2 JP S612055 B2 JPS612055 B2 JP S612055B2 JP 2039878 A JP2039878 A JP 2039878A JP 2039878 A JP2039878 A JP 2039878A JP S612055 B2 JPS612055 B2 JP S612055B2
- Authority
- JP
- Japan
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2039878A JPS54115317A (en) | 1978-02-25 | 1978-02-25 | Preparation of acrylic acid or methacrylic acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2039878A JPS54115317A (en) | 1978-02-25 | 1978-02-25 | Preparation of acrylic acid or methacrylic acid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54115317A JPS54115317A (en) | 1979-09-07 |
| JPS612055B2 true JPS612055B2 (en) | 1986-01-22 |
Family
ID=12025905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2039878A Granted JPS54115317A (en) | 1978-02-25 | 1978-02-25 | Preparation of acrylic acid or methacrylic acid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54115317A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999000350A1 (en) * | 1997-06-26 | 1999-01-07 | Nippon Soda Co., Ltd. | Process for producing free acids from ammonium carboxylates |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4599144A (en) * | 1984-06-25 | 1986-07-08 | Standard Oil Company (Indiana) | Process for recovery of methacrylic acid |
| EP0884300B1 (en) * | 1996-02-26 | 2001-11-21 | Nippon Soda Co., Ltd. | Process for preparing free alpha-hydroxy acids from ammonium salts thereof |
| CN1321968C (en) * | 2003-04-09 | 2007-06-20 | 上海华谊丙烯酸有限公司 | Method for purifying acrylic acid b utilizing azeotropic rectification |
| DE102009009580A1 (en) | 2009-02-19 | 2010-08-26 | Evonik Degussa Gmbh | Process for the preparation of free acids from their salts |
| DE102009001008A1 (en) | 2009-02-19 | 2010-08-26 | Evonik Degussa Gmbh | Reactive extraction of free organic acids from their ammonium salts |
-
1978
- 1978-02-25 JP JP2039878A patent/JPS54115317A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999000350A1 (en) * | 1997-06-26 | 1999-01-07 | Nippon Soda Co., Ltd. | Process for producing free acids from ammonium carboxylates |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS54115317A (en) | 1979-09-07 |