JPS5788143A - Purification of acrylic acid - Google Patents
Purification of acrylic acidInfo
- Publication number
- JPS5788143A JPS5788143A JP16190580A JP16190580A JPS5788143A JP S5788143 A JPS5788143 A JP S5788143A JP 16190580 A JP16190580 A JP 16190580A JP 16190580 A JP16190580 A JP 16190580A JP S5788143 A JPS5788143 A JP S5788143A
- Authority
- JP
- Japan
- Prior art keywords
- acrylic acid
- aldehyde
- acid
- alanine
- impurities
- Prior art date
- 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.)
- Pending
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: To remove trace of aldehydes existing in acrylic acid purified by conventional process, almost completely, by distilling the acrylic acid containing aldehydes as impurities in the presence of an α-amino acid such as DL-alanine.
CONSTITUTION: Acrylic acid containing aldehydes as impurities is added with 0.5W5mol, pref. 1W3mol, beased on 1mol of the aldehyde, of an α-amino acid selected from DL-alanine, DL-methionine, DL-lysine, DL-aspartic acid, DL-glutamic acid and their salts. The mixture is heat-treated pref. at 50W100°C for 30W 120min, and distilled to obtain acrylic acid free from aldehyde. The trace of aldehyde in acrylic acid causes discoloration of acrylic acid, elongates the induction period of polymerization reaction, and gives the polymer having low molecular weight and high discoloration tendency.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16190580A JPS5788143A (en) | 1980-11-19 | 1980-11-19 | Purification of acrylic acid |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16190580A JPS5788143A (en) | 1980-11-19 | 1980-11-19 | Purification of acrylic acid |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5788143A true JPS5788143A (en) | 1982-06-01 |
Family
ID=15744243
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16190580A Pending JPS5788143A (en) | 1980-11-19 | 1980-11-19 | Purification of acrylic acid |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5788143A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4625059A (en) * | 1983-06-24 | 1986-11-25 | 501 Mitsubishi Petrochemical Company, Ltd. | Process for purification of 1,2-unsaturated carboxylic acids and/or esters thereof |
US4828652A (en) * | 1986-12-09 | 1989-05-09 | Basf Aktiengesellschaft | Removal of aldehydes from α, β-olefinically unsaturated carboxylic acids |
US9517999B2 (en) | 2013-03-15 | 2016-12-13 | Rohm And Haas Company | Process for purifying (meth)acrylic acid |
-
1980
- 1980-11-19 JP JP16190580A patent/JPS5788143A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4625059A (en) * | 1983-06-24 | 1986-11-25 | 501 Mitsubishi Petrochemical Company, Ltd. | Process for purification of 1,2-unsaturated carboxylic acids and/or esters thereof |
US4828652A (en) * | 1986-12-09 | 1989-05-09 | Basf Aktiengesellschaft | Removal of aldehydes from α, β-olefinically unsaturated carboxylic acids |
US9517999B2 (en) | 2013-03-15 | 2016-12-13 | Rohm And Haas Company | Process for purifying (meth)acrylic acid |
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