JPS54146862A - Production of porous material - Google Patents

Production of porous material

Info

Publication number
JPS54146862A
JPS54146862A JP5511178A JP5511178A JPS54146862A JP S54146862 A JPS54146862 A JP S54146862A JP 5511178 A JP5511178 A JP 5511178A JP 5511178 A JP5511178 A JP 5511178A JP S54146862 A JPS54146862 A JP S54146862A
Authority
JP
Japan
Prior art keywords
metal salt
alkali
alcohol
porous material
water
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
JP5511178A
Other languages
Japanese (ja)
Other versions
JPS578133B2 (en
Inventor
Toru Sato
Junko Kuroda
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.)
Research Institute for Production Development
Zaidan Hojin Seisan Kaihatsu Kenkyusho
Original Assignee
Research Institute for Production Development
Zaidan Hojin Seisan Kaihatsu Kenkyusho
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 Research Institute for Production Development, Zaidan Hojin Seisan Kaihatsu Kenkyusho filed Critical Research Institute for Production Development
Priority to JP5511178A priority Critical patent/JPS54146862A/en
Publication of JPS54146862A publication Critical patent/JPS54146862A/en
Publication of JPS578133B2 publication Critical patent/JPS578133B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Separation Using Semi-Permeable Membranes (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

PURPOSE: To obtain a porous material having fine open cells made of a natural hydrophilic high polymer, by gelatinizing an alkali metal salt of pectic acid, separated upon addition of an alcohol to a solution of endodermis of citrus fruits in an alkali, with a multivalent metal salt.
CONSTITUTION: The endodermis of citrus fruits in treated with an aqueous solution (pH 1W3) adjusted ot pH 10.5W12.5 with an alkali, and dissolved. An alcohol is added to the solution to precipitate an alkali metal salt of pectic acid, which is separated and dissolved in water. The aqueous solution is made to gel with a water- soluble multivalent metal salt, and dried by heating. Methanol, ethanol, or isopropanol easily recoverable may be cited as the alcohol, and water-insoluble alcohols are not usable. The pH in acid and alkali treatment beyond the range described above cannot provide a porous material having a sufficient mechanical strength.
COPYRIGHT: (C)1979,JPO&Japio
JP5511178A 1978-05-09 1978-05-09 Production of porous material Granted JPS54146862A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5511178A JPS54146862A (en) 1978-05-09 1978-05-09 Production of porous material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5511178A JPS54146862A (en) 1978-05-09 1978-05-09 Production of porous material

Publications (2)

Publication Number Publication Date
JPS54146862A true JPS54146862A (en) 1979-11-16
JPS578133B2 JPS578133B2 (en) 1982-02-15

Family

ID=12989631

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5511178A Granted JPS54146862A (en) 1978-05-09 1978-05-09 Production of porous material

Country Status (1)

Country Link
JP (1) JPS54146862A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991007427A1 (en) * 1989-11-16 1991-05-30 Nissei Chemical Industry Co., Ltd. Carrier for column chromatography, process for separating and purifying water-soluble polymeric substance using said carrier, novel pectic acid-cellulose gel and process for preparing the same, and adsorbent for affinity chromatography

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5241679A (en) * 1975-09-30 1977-03-31 Matsushita Electric Works Ltd Process for expansion molding of polyurethane

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5241679A (en) * 1975-09-30 1977-03-31 Matsushita Electric Works Ltd Process for expansion molding of polyurethane

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991007427A1 (en) * 1989-11-16 1991-05-30 Nissei Chemical Industry Co., Ltd. Carrier for column chromatography, process for separating and purifying water-soluble polymeric substance using said carrier, novel pectic acid-cellulose gel and process for preparing the same, and adsorbent for affinity chromatography

Also Published As

Publication number Publication date
JPS578133B2 (en) 1982-02-15

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