JPS5653751A - Porous weakly acidic cation exchange resin and its manufacture - Google Patents

Porous weakly acidic cation exchange resin and its manufacture

Info

Publication number
JPS5653751A
JPS5653751A JP12974579A JP12974579A JPS5653751A JP S5653751 A JPS5653751 A JP S5653751A JP 12974579 A JP12974579 A JP 12974579A JP 12974579 A JP12974579 A JP 12974579A JP S5653751 A JPS5653751 A JP S5653751A
Authority
JP
Japan
Prior art keywords
cross
cation exchange
exchange resin
pva
surface area
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
JP12974579A
Other languages
Japanese (ja)
Other versions
JPS6150016B2 (en
Inventor
Koji Itagaki
Eiryo Ouchi
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.)
Mitsubishi Kasei Corp
Original Assignee
Mitsubishi Kasei Corp
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 Mitsubishi Kasei Corp filed Critical Mitsubishi Kasei Corp
Priority to JP12974579A priority Critical patent/JPS5653751A/en
Priority to US06/174,566 priority patent/US4306031A/en
Priority to EP80104794A priority patent/EP0024055B1/en
Priority to DE8080104794T priority patent/DE3065828D1/en
Publication of JPS5653751A publication Critical patent/JPS5653751A/en
Priority to US06/280,522 priority patent/US4350773A/en
Publication of JPS6150016B2 publication Critical patent/JPS6150016B2/ja
Granted legal-status Critical Current

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  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

PURPOSE:To manufacture the titled cation exchange resin having medium acidity stronger than that of conventional polyacrylic resin, and having an exchange group of specific structure, by specifying its specific surface area and/or pore volume. CONSTITUTION:PVA is cross-linked by adding a cross-linking agent e.g. glyoxal to the soln. of the PVA in which a salt is dissolved or suspended, then by suspending said soln. or suspension in oil dispersion medium. Then the porous cross-linked PVA, having >=5m<2>/g specific surface area and 0.1ml/g pore volume, obtained by the cross-linking reaction, is reacted with glyoxalic acid in aqueous soln. in the presence of catalyst mineral acid such as sulfuric acid to form acetal using >=0.4mol, preferably 0.9-1.8mol glyoxal per 1mol said cross-linked PVA. After separation of the acetal by conventional method, said reaction medium is washed with water thereby producing liberated weakly acidic cation exchange resin. Said cation exchange resin has an exchange group having structure shown by formula I, and has >=0.5m<2>/g specific surface area and/or >=0.1ml/g pore volume.
JP12974579A 1979-08-14 1979-10-08 Porous weakly acidic cation exchange resin and its manufacture Granted JPS5653751A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP12974579A JPS5653751A (en) 1979-10-08 1979-10-08 Porous weakly acidic cation exchange resin and its manufacture
US06/174,566 US4306031A (en) 1979-08-14 1980-08-04 Weakly acidic cation exchange resin and process for producing same
EP80104794A EP0024055B1 (en) 1979-08-14 1980-08-13 Weakly acidic cation exchange resins and process for producing same
DE8080104794T DE3065828D1 (en) 1979-08-14 1980-08-13 Weakly acidic cation exchange resins and process for producing same
US06/280,522 US4350773A (en) 1979-08-14 1981-07-06 Weakly acidic cation exchange resin and process for producing same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12974579A JPS5653751A (en) 1979-10-08 1979-10-08 Porous weakly acidic cation exchange resin and its manufacture

Publications (2)

Publication Number Publication Date
JPS5653751A true JPS5653751A (en) 1981-05-13
JPS6150016B2 JPS6150016B2 (en) 1986-11-01

Family

ID=15017150

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12974579A Granted JPS5653751A (en) 1979-08-14 1979-10-08 Porous weakly acidic cation exchange resin and its manufacture

Country Status (1)

Country Link
JP (1) JPS5653751A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109641207A (en) * 2016-08-31 2019-04-16 东丽株式会社 Ion-exchange fibre, water-purifying filter and method for treating water
WO2019132029A1 (en) * 2017-12-28 2019-07-04 株式会社クラレ Super-absorbent polymer and water-retention material for agriculture
WO2019132030A1 (en) * 2017-12-28 2019-07-04 株式会社クラレ Water-absorbent resin and agricultural water-retaining material
JP2019119891A (en) * 2017-12-28 2019-07-22 株式会社クラレ Water-absorbing resin, and agricultural water retention material

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109641207A (en) * 2016-08-31 2019-04-16 东丽株式会社 Ion-exchange fibre, water-purifying filter and method for treating water
WO2019132029A1 (en) * 2017-12-28 2019-07-04 株式会社クラレ Super-absorbent polymer and water-retention material for agriculture
WO2019132030A1 (en) * 2017-12-28 2019-07-04 株式会社クラレ Water-absorbent resin and agricultural water-retaining material
JP2019119891A (en) * 2017-12-28 2019-07-22 株式会社クラレ Water-absorbing resin, and agricultural water retention material
US11787751B2 (en) 2017-12-28 2023-10-17 Kuraray Co., Ltd. Water-absorbent resin and agricultural water-retaining material

Also Published As

Publication number Publication date
JPS6150016B2 (en) 1986-11-01

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