JPS5753443A - Recovery of acrylamide from mixed solution of acrylic acid and acrylamide - Google Patents

Recovery of acrylamide from mixed solution of acrylic acid and acrylamide

Info

Publication number
JPS5753443A
JPS5753443A JP10766880A JP10766880A JPS5753443A JP S5753443 A JPS5753443 A JP S5753443A JP 10766880 A JP10766880 A JP 10766880A JP 10766880 A JP10766880 A JP 10766880A JP S5753443 A JPS5753443 A JP S5753443A
Authority
JP
Japan
Prior art keywords
acrylamide
acrylic acid
mixture
reverse osmosis
recovery
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.)
Granted
Application number
JP10766880A
Other languages
Japanese (ja)
Other versions
JPH0114216B2 (en
Inventor
Mihoko Yamamoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Organo Corp
Original Assignee
Organo Corp
Japan Organo Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Organo Corp, Japan Organo Co Ltd filed Critical Organo Corp
Priority to JP10766880A priority Critical patent/JPS5753443A/en
Publication of JPS5753443A publication Critical patent/JPS5753443A/en
Publication of JPH0114216B2 publication Critical patent/JPH0114216B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

PURPOSE: To recover arylamide, in high purity, from a mixture of acrylic acid and acrylamide, by adding an alkaline solution to the mixture, and treating with a reverse osmosis membrane, thereby removing acrylic acid.
CONSTITUTION: A mixture of acrylic acid acrylamide, e.g. acrylic acid solution discharged from the ester polynerization step of acrylic resin preparation process, is mixed with an alkaline solution containing an alkali earth metal hydroxide to adjust the pH of the mixture to 5W11, and to form an acrylic acid salt. The mixture is then treated with a reverse osmosis membrane having a salt rejection of ≥80%, pref. ≥85% to separate acrylic acid from acrylamide, and the acrylamide is recovered. For example, when a mixture of about 25°C is fed to a reverse osmosis module keeping the operation pressure to 55W70kg/cm2, ≥98% of acrylamide contained in the stock mixture is collected to the permeated liquid, and ≥83% of acrylic acid is left in the concentrated liquid.
COPYRIGHT: (C)1982,JPO&Japio
JP10766880A 1980-08-07 1980-08-07 Recovery of acrylamide from mixed solution of acrylic acid and acrylamide Granted JPS5753443A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10766880A JPS5753443A (en) 1980-08-07 1980-08-07 Recovery of acrylamide from mixed solution of acrylic acid and acrylamide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10766880A JPS5753443A (en) 1980-08-07 1980-08-07 Recovery of acrylamide from mixed solution of acrylic acid and acrylamide

Publications (2)

Publication Number Publication Date
JPS5753443A true JPS5753443A (en) 1982-03-30
JPH0114216B2 JPH0114216B2 (en) 1989-03-10

Family

ID=14464971

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10766880A Granted JPS5753443A (en) 1980-08-07 1980-08-07 Recovery of acrylamide from mixed solution of acrylic acid and acrylamide

Country Status (1)

Country Link
JP (1) JPS5753443A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6150952A (en) * 1984-08-18 1986-03-13 Kohjin Co Ltd Method of purifying monomer

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5692254A (en) * 1979-12-27 1981-07-25 Asahi Chem Ind Co Ltd Purification of unsaturated amide aqueous solution

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5692254A (en) * 1979-12-27 1981-07-25 Asahi Chem Ind Co Ltd Purification of unsaturated amide aqueous solution

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6150952A (en) * 1984-08-18 1986-03-13 Kohjin Co Ltd Method of purifying monomer
JPH0432820B2 (en) * 1984-08-18 1992-06-01 Kojin Kk

Also Published As

Publication number Publication date
JPH0114216B2 (en) 1989-03-10

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