JPS5692254A - Purification of unsaturated amide aqueous solution - Google Patents
Purification of unsaturated amide aqueous solutionInfo
- Publication number
- JPS5692254A JPS5692254A JP16913979A JP16913979A JPS5692254A JP S5692254 A JPS5692254 A JP S5692254A JP 16913979 A JP16913979 A JP 16913979A JP 16913979 A JP16913979 A JP 16913979A JP S5692254 A JPS5692254 A JP S5692254A
- Authority
- JP
- Japan
- Prior art keywords
- unsaturated
- organic acid
- amide
- aqueous solution
- unsaturated amide
- 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: An aqueous unsaturated amide is neutralized with a caustic alkali to effect reaction and subjected to reverse osmotic treatment to produce the titled aqueous solution used as a raw material for anionic high-molecular-weight flocculating agent readily and effectively without any trouble of polymerization.
CONSTITUTION: An aqueous unsaturated amide containing unsaturated organic acid is neutralized with a caustic alkali to convert unsaturated organic acid into the metal salt, which is separated with a reverse osmotic membrane to give the titled aqueous solution. The unsaturated amide means an amide containing a polymerizable unsaturated bond such as acrylamide. The unsaturated organic acid means the one corresponding to the acid formed by the hydrolysis of the unsaturated amide such as acrylic acid.
EFFECT: When the unsaturated amide is neutralized with a caustic alkali, the degree of membrane's exclusion of the unsaturated organic acid is remarkbaly raised to enable the removal.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16913979A JPS5692254A (en) | 1979-12-27 | 1979-12-27 | Purification of unsaturated amide aqueous solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16913979A JPS5692254A (en) | 1979-12-27 | 1979-12-27 | Purification of unsaturated amide aqueous solution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5692254A true JPS5692254A (en) | 1981-07-25 |
Family
ID=15881002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16913979A Pending JPS5692254A (en) | 1979-12-27 | 1979-12-27 | Purification of unsaturated amide aqueous solution |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5692254A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5753443A (en) * | 1980-08-07 | 1982-03-30 | Japan Organo Co Ltd | Recovery of acrylamide from mixed solution of acrylic acid and acrylamide |
| JP2007509139A (en) * | 2003-10-23 | 2007-04-12 | ジーイー・ヘルスケア・バイオサイエンス・アクチボラグ | Method for synthesizing acrylamide derivatives |
| JPWO2007132601A1 (en) * | 2006-05-15 | 2009-09-24 | 三井化学株式会社 | Method for producing (meth) acrylamide |
-
1979
- 1979-12-27 JP JP16913979A patent/JPS5692254A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5753443A (en) * | 1980-08-07 | 1982-03-30 | Japan Organo Co Ltd | Recovery of acrylamide from mixed solution of acrylic acid and acrylamide |
| JPH0114216B2 (en) * | 1980-08-07 | 1989-03-10 | Organo Kk | |
| JP2007509139A (en) * | 2003-10-23 | 2007-04-12 | ジーイー・ヘルスケア・バイオサイエンス・アクチボラグ | Method for synthesizing acrylamide derivatives |
| JPWO2007132601A1 (en) * | 2006-05-15 | 2009-09-24 | 三井化学株式会社 | Method for producing (meth) acrylamide |
| US8143033B2 (en) | 2006-05-15 | 2012-03-27 | Mitsui Chemicals, Inc. | Process for producing (meth)acrylamide |
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